./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-37.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_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 e6a9f19f8bc91cee98eed829e929613a36691a9c36f04847231bf1631581216f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:42:09,009 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:42:09,097 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:42:09,102 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:42:09,102 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:42:09,145 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:42:09,146 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:42:09,147 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:42:09,147 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:42:09,147 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:42:09,148 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:42:09,148 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:42:09,149 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:42:09,149 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:42:09,149 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:42:09,149 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:42:09,149 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:42:09,149 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:42:09,149 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:42:09,149 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:42:09,150 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:42:09,150 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:42:09,150 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:42:09,150 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:42:09,150 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:42:09,150 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:42:09,150 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:42:09,150 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:42:09,150 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:42:09,150 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:42:09,151 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:42:09,151 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:42:09,151 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:42:09,151 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:42:09,152 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:42:09,152 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:42:09,152 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:42:09,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:42:09,152 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:42:09,152 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:42:09,152 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:42:09,152 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:42:09,152 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:42:09,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:42:09,153 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:42:09,153 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:42:09,153 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:42:09,153 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:42:09,153 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_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 -> e6a9f19f8bc91cee98eed829e929613a36691a9c36f04847231bf1631581216f [2024-11-28 04:42:09,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:42:09,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:42:09,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:42:09,506 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:42:09,507 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:42:09,507 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-37.i [2024-11-28 04:42:12,526 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/data/c92593d68/36d9e584f68c474b94bb30ad0ac4f465/FLAG654cea431 [2024-11-28 04:42:12,763 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:42:12,764 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-37.i [2024-11-28 04:42:12,772 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/data/c92593d68/36d9e584f68c474b94bb30ad0ac4f465/FLAG654cea431 [2024-11-28 04:42:12,786 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/data/c92593d68/36d9e584f68c474b94bb30ad0ac4f465 [2024-11-28 04:42:12,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:42:12,789 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:42:12,790 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:42:12,791 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:42:12,795 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:42:12,796 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:12" (1/1) ... [2024-11-28 04:42:12,796 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68d04b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:12, skipping insertion in model container [2024-11-28 04:42:12,797 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:12" (1/1) ... [2024-11-28 04:42:12,813 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:42:12,972 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_d0aa0ca7-80df-49c3-ae6d-4581f594da24/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-37.i[915,928] [2024-11-28 04:42:13,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:42:13,034 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:42:13,046 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_d0aa0ca7-80df-49c3-ae6d-4581f594da24/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-37.i[915,928] [2024-11-28 04:42:13,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:42:13,087 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:42:13,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:13 WrapperNode [2024-11-28 04:42:13,087 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:42:13,088 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:42:13,088 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:42:13,088 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:42:13,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:13" (1/1) ... [2024-11-28 04:42:13,102 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:13" (1/1) ... [2024-11-28 04:42:13,136 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2024-11-28 04:42:13,137 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:42:13,137 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:42:13,137 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:42:13,137 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:42:13,151 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:13" (1/1) ... [2024-11-28 04:42:13,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:13" (1/1) ... [2024-11-28 04:42:13,158 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:13" (1/1) ... [2024-11-28 04:42:13,181 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 04:42:13,182 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:13" (1/1) ... [2024-11-28 04:42:13,182 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:13" (1/1) ... [2024-11-28 04:42:13,197 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:13" (1/1) ... [2024-11-28 04:42:13,198 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:13" (1/1) ... [2024-11-28 04:42:13,201 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:13" (1/1) ... [2024-11-28 04:42:13,210 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:13" (1/1) ... [2024-11-28 04:42:13,211 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:13" (1/1) ... [2024-11-28 04:42:13,217 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:42:13,218 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:42:13,218 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:42:13,218 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:42:13,219 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:13" (1/1) ... [2024-11-28 04:42:13,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:42:13,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:13,262 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:13,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:42:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:42:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:42:13,295 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:42:13,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:42:13,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:42:13,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:42:13,388 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:42:13,390 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:42:13,768 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-28 04:42:13,768 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:42:13,778 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:42:13,778 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:42:13,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:13 BoogieIcfgContainer [2024-11-28 04:42:13,779 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:42:13,782 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:42:13,782 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:42:13,787 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:42:13,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:42:12" (1/3) ... [2024-11-28 04:42:13,788 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f26fc0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:42:13, skipping insertion in model container [2024-11-28 04:42:13,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:13" (2/3) ... [2024-11-28 04:42:13,788 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f26fc0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:42:13, skipping insertion in model container [2024-11-28 04:42:13,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:13" (3/3) ... [2024-11-28 04:42:13,790 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-37.i [2024-11-28 04:42:13,806 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:42:13,807 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-37.i that has 2 procedures, 50 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:42:13,862 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:42:13,874 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;@4d247871, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:42:13,875 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:42:13,878 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 39 states have internal predecessors, (54), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 04:42:13,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 04:42:13,886 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:13,887 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:42:13,887 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:42:13,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:13,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1174007771, now seen corresponding path program 1 times [2024-11-28 04:42:13,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:13,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424899129] [2024-11-28 04:42:13,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:13,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:14,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:14,169 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-28 04:42:14,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:14,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424899129] [2024-11-28 04:42:14,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424899129] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:14,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085244338] [2024-11-28 04:42:14,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:14,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:14,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:14,180 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:14,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:42:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:14,332 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:42:14,338 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:14,356 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-28 04:42:14,357 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:42:14,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085244338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:42:14,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:42:14,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:42:14,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315408270] [2024-11-28 04:42:14,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:42:14,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:42:14,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:14,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:42:14,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:42:14,384 INFO L87 Difference]: Start difference. First operand has 50 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 39 states have internal predecessors, (54), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:42:14,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:14,405 INFO L93 Difference]: Finished difference Result 93 states and 147 transitions. [2024-11-28 04:42:14,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:42:14,407 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 68 [2024-11-28 04:42:14,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:14,413 INFO L225 Difference]: With dead ends: 93 [2024-11-28 04:42:14,413 INFO L226 Difference]: Without dead ends: 46 [2024-11-28 04:42:14,416 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 69 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 04:42:14,418 INFO L435 NwaCegarLoop]: 65 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, 65 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 04:42:14,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:42:14,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-28 04:42:14,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-28 04:42:14,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 35 states have internal predecessors, (47), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 04:42:14,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 65 transitions. [2024-11-28 04:42:14,452 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 65 transitions. Word has length 68 [2024-11-28 04:42:14,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:14,452 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 65 transitions. [2024-11-28 04:42:14,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:42:14,453 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 65 transitions. [2024-11-28 04:42:14,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 04:42:14,455 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:14,455 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:42:14,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:42:14,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:42:14,659 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:42:14,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:14,660 INFO L85 PathProgramCache]: Analyzing trace with hash -108979235, now seen corresponding path program 1 times [2024-11-28 04:42:14,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:14,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418437558] [2024-11-28 04:42:14,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:14,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:14,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:15,071 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:42:15,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:15,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418437558] [2024-11-28 04:42:15,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418437558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:42:15,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:42:15,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:42:15,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717834432] [2024-11-28 04:42:15,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:42:15,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:42:15,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:15,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:42:15,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:42:15,074 INFO L87 Difference]: Start difference. First operand 46 states and 65 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:42:15,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:15,115 INFO L93 Difference]: Finished difference Result 89 states and 127 transitions. [2024-11-28 04:42:15,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:42:15,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 68 [2024-11-28 04:42:15,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:15,119 INFO L225 Difference]: With dead ends: 89 [2024-11-28 04:42:15,119 INFO L226 Difference]: Without dead ends: 46 [2024-11-28 04:42:15,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:42:15,120 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:15,120 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:42:15,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-28 04:42:15,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-28 04:42:15,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 35 states have internal predecessors, (46), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 04:42:15,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 64 transitions. [2024-11-28 04:42:15,136 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 64 transitions. Word has length 68 [2024-11-28 04:42:15,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:15,138 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 64 transitions. [2024-11-28 04:42:15,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:42:15,138 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 64 transitions. [2024-11-28 04:42:15,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 04:42:15,141 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:15,141 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:42:15,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:42:15,142 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:42:15,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:15,143 INFO L85 PathProgramCache]: Analyzing trace with hash -918325861, now seen corresponding path program 1 times [2024-11-28 04:42:15,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:15,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061973557] [2024-11-28 04:42:15,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:15,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:15,621 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-28 04:42:15,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:15,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061973557] [2024-11-28 04:42:15,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061973557] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:15,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691626977] [2024-11-28 04:42:15,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:15,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:15,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:15,627 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:15,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:42:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:15,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:42:15,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:15,991 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 04:42:15,991 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:16,236 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-28 04:42:16,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691626977] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:42:16,236 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:42:16,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-28 04:42:16,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786499544] [2024-11-28 04:42:16,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:42:16,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:42:16,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:16,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:42:16,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:42:16,241 INFO L87 Difference]: Start difference. First operand 46 states and 64 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-28 04:42:16,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:16,466 INFO L93 Difference]: Finished difference Result 95 states and 130 transitions. [2024-11-28 04:42:16,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:42:16,468 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 68 [2024-11-28 04:42:16,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:16,469 INFO L225 Difference]: With dead ends: 95 [2024-11-28 04:42:16,469 INFO L226 Difference]: Without dead ends: 52 [2024-11-28 04:42:16,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:42:16,470 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 35 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:16,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 101 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:42:16,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-28 04:42:16,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2024-11-28 04:42:16,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 38 states have (on average 1.236842105263158) internal successors, (47), 38 states have internal predecessors, (47), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 04:42:16,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 65 transitions. [2024-11-28 04:42:16,480 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 65 transitions. Word has length 68 [2024-11-28 04:42:16,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:16,481 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 65 transitions. [2024-11-28 04:42:16,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-28 04:42:16,481 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 65 transitions. [2024-11-28 04:42:16,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 04:42:16,486 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:16,486 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:42:16,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:42:16,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:16,687 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:42:16,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:16,688 INFO L85 PathProgramCache]: Analyzing trace with hash 2055988095, now seen corresponding path program 1 times [2024-11-28 04:42:16,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:16,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095436286] [2024-11-28 04:42:16,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:16,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:16,974 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-28 04:42:16,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:16,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095436286] [2024-11-28 04:42:16,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095436286] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:16,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89604524] [2024-11-28 04:42:16,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:16,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:16,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:16,978 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:16,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:42:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:17,073 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:42:17,079 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:17,355 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:42:17,355 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:42:17,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89604524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:42:17,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:42:17,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-28 04:42:17,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876867251] [2024-11-28 04:42:17,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:42:17,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:42:17,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:17,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:42:17,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:42:17,357 INFO L87 Difference]: Start difference. First operand 50 states and 65 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:42:17,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:17,589 INFO L93 Difference]: Finished difference Result 147 states and 194 transitions. [2024-11-28 04:42:17,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:42:17,590 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 70 [2024-11-28 04:42:17,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:17,592 INFO L225 Difference]: With dead ends: 147 [2024-11-28 04:42:17,592 INFO L226 Difference]: Without dead ends: 100 [2024-11-28 04:42:17,593 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:42:17,596 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 54 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:17,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 193 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:42:17,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-28 04:42:17,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 77. [2024-11-28 04:42:17,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 54 states have (on average 1.1851851851851851) internal successors, (64), 54 states have internal predecessors, (64), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:42:17,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 100 transitions. [2024-11-28 04:42:17,633 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 100 transitions. Word has length 70 [2024-11-28 04:42:17,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:17,633 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 100 transitions. [2024-11-28 04:42:17,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:42:17,634 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 100 transitions. [2024-11-28 04:42:17,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-28 04:42:17,638 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:17,638 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:42:17,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:17,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:17,843 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:42:17,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:17,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1046819240, now seen corresponding path program 1 times [2024-11-28 04:42:17,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:17,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487306640] [2024-11-28 04:42:17,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:17,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:42:17,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1499168906] [2024-11-28 04:42:17,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:17,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:17,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:17,899 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:17,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:42:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:17,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:42:18,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:18,368 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:42:18,368 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:42:18,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:18,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487306640] [2024-11-28 04:42:18,370 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:42:18,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499168906] [2024-11-28 04:42:18,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499168906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:42:18,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:42:18,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:42:18,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376970231] [2024-11-28 04:42:18,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:42:18,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:42:18,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:18,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:42:18,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:42:18,372 INFO L87 Difference]: Start difference. First operand 77 states and 100 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:42:18,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:18,508 INFO L93 Difference]: Finished difference Result 147 states and 192 transitions. [2024-11-28 04:42:18,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:42:18,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 71 [2024-11-28 04:42:18,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:18,510 INFO L225 Difference]: With dead ends: 147 [2024-11-28 04:42:18,510 INFO L226 Difference]: Without dead ends: 99 [2024-11-28 04:42:18,511 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:42:18,511 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 46 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:18,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 147 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:42:18,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-28 04:42:18,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 91. [2024-11-28 04:42:18,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 68 states have (on average 1.1911764705882353) internal successors, (81), 68 states have internal predecessors, (81), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:42:18,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 117 transitions. [2024-11-28 04:42:18,529 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 117 transitions. Word has length 71 [2024-11-28 04:42:18,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:18,529 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 117 transitions. [2024-11-28 04:42:18,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:42:18,529 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 117 transitions. [2024-11-28 04:42:18,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 04:42:18,530 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:18,530 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:42:18,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:18,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:18,731 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:42:18,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:18,731 INFO L85 PathProgramCache]: Analyzing trace with hash 762866719, now seen corresponding path program 1 times [2024-11-28 04:42:18,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:18,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681299157] [2024-11-28 04:42:18,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:18,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:42:18,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1930773063] [2024-11-28 04:42:18,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:18,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:18,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:18,840 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:18,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:42:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:42:18,930 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:42:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:42:19,031 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:42:19,031 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:42:19,032 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 04:42:19,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:19,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:19,251 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-28 04:42:19,301 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:42:19,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:42:19 BoogieIcfgContainer [2024-11-28 04:42:19,306 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:42:19,307 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:42:19,307 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:42:19,307 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:42:19,308 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:13" (3/4) ... [2024-11-28 04:42:19,311 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 04:42:19,312 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:42:19,316 INFO L158 Benchmark]: Toolchain (without parser) took 6523.88ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 84.9MB in the end (delta: 7.6MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2024-11-28 04:42:19,316 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:42:19,317 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.06ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 79.7MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:42:19,317 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.82ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 76.5MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:42:19,317 INFO L158 Benchmark]: Boogie Preprocessor took 80.51ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 72.4MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:42:19,317 INFO L158 Benchmark]: RCFGBuilder took 560.87ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 52.4MB in the end (delta: 20.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 04:42:19,318 INFO L158 Benchmark]: TraceAbstraction took 5524.83ms. Allocated memory is still 117.4MB. Free memory was 51.8MB in the beginning and 85.0MB in the end (delta: -33.1MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2024-11-28 04:42:19,320 INFO L158 Benchmark]: Witness Printer took 5.09ms. Allocated memory is still 117.4MB. Free memory was 85.0MB in the beginning and 84.9MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:42:19,322 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.06ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 79.7MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.82ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 76.5MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 80.51ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 72.4MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 560.87ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 52.4MB in the end (delta: 20.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 5524.83ms. Allocated memory is still 117.4MB. Free memory was 51.8MB in the beginning and 85.0MB in the end (delta: -33.1MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. * Witness Printer took 5.09ms. Allocated memory is still 117.4MB. Free memory was 85.0MB in the beginning and 84.9MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 37, overapproximation of bitwiseOr at line 81, overapproximation of someBinaryDOUBLEComparisonOperation at line 81, overapproximation of someBinaryDOUBLEComparisonOperation at line 74. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 8; [L23] unsigned short int var_1_2 = 59049; [L24] unsigned char var_1_6 = 4; [L25] unsigned char var_1_7 = 1; [L26] unsigned char var_1_8 = 64; [L27] unsigned long int var_1_9 = 64; [L28] unsigned long int var_1_10 = 1776833134; [L29] signed long int var_1_11 = -16; [L30] double var_1_12 = 0.25; [L31] double var_1_13 = 5.5; [L32] unsigned char last_1_var_1_8 = 64; [L33] signed long int last_1_var_1_11 = -16; VAL [isInitial=0, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=1776833134, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=59049, var_1_6=4, var_1_7=1, var_1_8=64, var_1_9=64] [L85] isInitial = 1 [L86] FCALL initially() [L88] CALL updateLastVariables() [L77] last_1_var_1_8 = var_1_8 [L78] last_1_var_1_11 = var_1_11 VAL [isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=1776833134, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=59049, var_1_6=4, var_1_7=1, var_1_8=64, var_1_9=64] [L88] RET updateLastVariables() [L89] CALL updateVariables() [L61] var_1_2 = __VERIFIER_nondet_ushort() [L62] CALL assume_abort_if_not(var_1_2 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=1776833134, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=32767, var_1_6=4, var_1_7=1, var_1_8=64, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=1776833134, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=32767, var_1_6=4, var_1_7=1, var_1_8=64, var_1_9=64] [L62] RET assume_abort_if_not(var_1_2 >= 32767) VAL [isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=1776833134, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=32767, var_1_6=4, var_1_7=1, var_1_8=64, var_1_9=64] [L63] CALL assume_abort_if_not(var_1_2 <= 65535) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=1776833134, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=32767, var_1_6=4, var_1_7=1, var_1_8=64, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=1776833134, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=32767, var_1_6=4, var_1_7=1, var_1_8=64, var_1_9=64] [L63] RET assume_abort_if_not(var_1_2 <= 65535) VAL [isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=1776833134, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=32767, var_1_6=4, var_1_7=1, var_1_8=64, var_1_9=64] [L64] var_1_6 = __VERIFIER_nondet_uchar() [L65] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=1776833134, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=32767, var_1_7=1, var_1_8=64, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=1776833134, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=32767, var_1_7=1, var_1_8=64, var_1_9=64] [L65] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=1776833134, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=32767, var_1_7=1, var_1_8=64, var_1_9=64] [L66] CALL assume_abort_if_not(var_1_6 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=1776833134, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=32767, var_1_6=0, var_1_7=1, var_1_8=64, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=1776833134, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=32767, var_1_6=0, var_1_7=1, var_1_8=64, var_1_9=64] [L66] RET assume_abort_if_not(var_1_6 <= 254) VAL [isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=1776833134, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=32767, var_1_6=0, var_1_7=1, var_1_8=64, var_1_9=64] [L67] var_1_7 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=1776833134, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=32767, var_1_6=0, var_1_8=64, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=1776833134, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=32767, var_1_6=0, var_1_8=64, var_1_9=64] [L68] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=1776833134, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=32767, var_1_6=0, var_1_8=64, var_1_9=64] [L69] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=1776833134, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=32767, var_1_6=0, var_1_7=1, var_1_8=64, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=1776833134, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=32767, var_1_6=0, var_1_7=1, var_1_8=64, var_1_9=64] [L69] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=1776833134, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=32767, var_1_6=0, var_1_7=1, var_1_8=64, var_1_9=64] [L70] var_1_10 = __VERIFIER_nondet_ulong() [L71] CALL assume_abort_if_not(var_1_10 >= 1073741824) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=-3221225472, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=32767, var_1_6=0, var_1_7=1, var_1_8=64, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=-3221225472, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=32767, var_1_6=0, var_1_7=1, var_1_8=64, var_1_9=64] [L71] RET assume_abort_if_not(var_1_10 >= 1073741824) VAL [isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=-3221225472, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=32767, var_1_6=0, var_1_7=1, var_1_8=64, var_1_9=64] [L72] CALL assume_abort_if_not(var_1_10 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=-3221225472, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=32767, var_1_6=0, var_1_7=1, var_1_8=64, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=-3221225472, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=32767, var_1_6=0, var_1_7=1, var_1_8=64, var_1_9=64] [L72] RET assume_abort_if_not(var_1_10 <= 2147483647) VAL [isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=-3221225472, var_1_11=-16, var_1_12=1/4, var_1_13=11/2, var_1_1=8, var_1_2=32767, var_1_6=0, var_1_7=1, var_1_8=64, var_1_9=64] [L73] var_1_13 = __VERIFIER_nondet_double() [L74] CALL assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=-3221225472, var_1_11=-16, var_1_12=1/4, var_1_1=8, var_1_2=32767, var_1_6=0, var_1_7=1, var_1_8=64, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=-3221225472, var_1_11=-16, var_1_12=1/4, var_1_1=8, var_1_2=32767, var_1_6=0, var_1_7=1, var_1_8=64, var_1_9=64] [L74] RET assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=-3221225472, var_1_11=-16, var_1_12=1/4, var_1_1=8, var_1_2=32767, var_1_6=0, var_1_7=1, var_1_8=64, var_1_9=64] [L89] RET updateVariables() [L90] CALL step() [L37] EXPR (var_1_2 - last_1_var_1_8) ^ (last_1_var_1_8 * last_1_var_1_11) VAL [isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=-3221225472, var_1_11=-16, var_1_12=1/4, var_1_1=8, var_1_2=32767, var_1_6=0, var_1_7=1, var_1_8=64, var_1_9=64] [L37] COND TRUE ((var_1_2 - last_1_var_1_8) ^ (last_1_var_1_8 * last_1_var_1_11)) <= -64 [L38] var_1_1 = ((((1) < (((((16) > (var_1_6)) ? (16) : (var_1_6))))) ? (1) : (((((16) > (var_1_6)) ? (16) : (var_1_6)))))) VAL [isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=-3221225472, var_1_11=-16, var_1_12=1/4, var_1_1=1, var_1_2=32767, var_1_6=0, var_1_7=1, var_1_8=64, var_1_9=64] [L44] var_1_11 = var_1_1 VAL [isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=-3221225472, var_1_11=1, var_1_12=1/4, var_1_1=1, var_1_2=32767, var_1_6=0, var_1_7=1, var_1_8=64, var_1_9=64] [L45] COND TRUE var_1_1 >= ((((var_1_11 / var_1_2) < 0 ) ? -(var_1_11 / var_1_2) : (var_1_11 / var_1_2))) [L46] var_1_8 = var_1_6 VAL [isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=-3221225472, var_1_11=1, var_1_12=1/4, var_1_1=1, var_1_2=32767, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=64] [L52] unsigned char stepLocal_0 = var_1_1; VAL [isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, stepLocal_0=1, var_1_10=-3221225472, var_1_11=1, var_1_12=1/4, var_1_1=1, var_1_2=32767, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=64] [L53] COND FALSE !(var_1_1 > stepLocal_0) [L56] var_1_9 = ((1228227409u + var_1_10) - var_1_11) VAL [isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=-3221225472, var_1_11=1, var_1_12=1/4, var_1_1=1, var_1_2=32767, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=-1992998064] [L58] var_1_12 = var_1_13 VAL [isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=-3221225472, var_1_11=1, var_1_12=2, var_1_13=2, var_1_1=1, var_1_2=32767, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=-1992998064] [L90] RET step() [L91] CALL, EXPR property() [L81] EXPR (var_1_2 - last_1_var_1_8) ^ (last_1_var_1_8 * last_1_var_1_11) VAL [isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=-3221225472, var_1_11=1, var_1_12=2, var_1_13=2, var_1_1=1, var_1_2=32767, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=-1992998064] [L81-L82] return (((((((var_1_2 - last_1_var_1_8) ^ (last_1_var_1_8 * last_1_var_1_11)) <= -64) ? (var_1_1 == ((unsigned char) ((((1) < (((((16) > (var_1_6)) ? (16) : (var_1_6))))) ? (1) : (((((16) > (var_1_6)) ? (16) : (var_1_6)))))))) : (var_1_7 ? (var_1_1 == ((unsigned char) var_1_6)) : 1)) && ((var_1_1 >= ((((var_1_11 / var_1_2) < 0 ) ? -(var_1_11 / var_1_2) : (var_1_11 / var_1_2)))) ? (var_1_8 == ((unsigned char) var_1_6)) : (var_1_7 ? (var_1_8 == ((unsigned char) var_1_6)) : 1))) && ((var_1_1 > var_1_1) ? (var_1_9 == ((unsigned long int) var_1_2)) : (var_1_9 == ((unsigned long int) ((1228227409u + var_1_10) - var_1_11))))) && (var_1_11 == ((signed long int) var_1_1))) && (var_1_12 == ((double) var_1_13)) ; [L91] RET, EXPR property() [L91] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=-3221225472, var_1_11=1, var_1_12=2, var_1_13=2, var_1_1=1, var_1_2=32767, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=-1992998064] [L19] reach_error() VAL [isInitial=1, last_1_var_1_11=-16, last_1_var_1_8=64, var_1_10=-3221225472, var_1_11=1, var_1_12=2, var_1_13=2, var_1_1=1, var_1_2=32767, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=-1992998064] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.4s, OverallIterations: 6, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 135 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 135 mSDsluCounter, 622 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 351 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 191 IncrementalHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 271 mSDtfsCounter, 191 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 364 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=91occurred in iteration=5, InterpolantAutomatonStates: 23, 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, 5 MinimizatonAttempts, 33 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 770 NumberOfCodeBlocks, 770 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 610 ConstructedInterpolants, 1 QuantifiedInterpolants, 1721 SizeOfPredicates, 9 NumberOfNonLiveVariables, 717 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 1184/1296 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 04:42:19,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 e6a9f19f8bc91cee98eed829e929613a36691a9c36f04847231bf1631581216f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:42:21,994 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:42:22,091 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 04:42:22,120 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:42:22,121 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:42:22,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:42:22,165 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:42:22,165 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:42:22,171 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:42:22,171 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:42:22,171 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:42:22,171 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:42:22,172 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:42:22,172 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:42:22,172 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:42:22,172 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:42:22,172 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:42:22,172 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:42:22,172 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:42:22,173 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:42:22,173 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:42:22,173 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:42:22,173 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:42:22,173 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:42:22,173 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 04:42:22,173 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 04:42:22,174 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:42:22,174 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:42:22,174 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:42:22,174 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:42:22,177 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:42:22,178 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:42:22,178 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:42:22,178 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:42:22,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:42:22,178 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:42:22,178 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:42:22,178 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:42:22,178 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:42:22,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:42:22,178 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:42:22,179 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:42:22,179 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:42:22,179 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:42:22,179 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 04:42:22,179 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 04:42:22,179 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:42:22,179 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:42:22,179 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:42:22,179 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:42:22,179 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_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 -> e6a9f19f8bc91cee98eed829e929613a36691a9c36f04847231bf1631581216f [2024-11-28 04:42:22,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:42:22,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:42:22,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:42:22,488 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:42:22,488 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:42:22,489 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-37.i [2024-11-28 04:42:25,420 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/data/49eb3f164/cb5d703fe7e346c5b0a833c7aa753a5d/FLAGbc4cbe738 [2024-11-28 04:42:25,711 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:42:25,715 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-37.i [2024-11-28 04:42:25,729 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/data/49eb3f164/cb5d703fe7e346c5b0a833c7aa753a5d/FLAGbc4cbe738 [2024-11-28 04:42:25,750 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/data/49eb3f164/cb5d703fe7e346c5b0a833c7aa753a5d [2024-11-28 04:42:25,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:42:25,756 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:42:25,758 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:42:25,758 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:42:25,764 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:42:25,765 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:25" (1/1) ... [2024-11-28 04:42:25,768 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e61c145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:25, skipping insertion in model container [2024-11-28 04:42:25,769 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:25" (1/1) ... [2024-11-28 04:42:25,789 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:42:25,975 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_d0aa0ca7-80df-49c3-ae6d-4581f594da24/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-37.i[915,928] [2024-11-28 04:42:26,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:42:26,070 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:42:26,082 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_d0aa0ca7-80df-49c3-ae6d-4581f594da24/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-37.i[915,928] [2024-11-28 04:42:26,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:42:26,146 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:42:26,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26 WrapperNode [2024-11-28 04:42:26,146 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:42:26,148 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:42:26,148 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:42:26,148 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:42:26,157 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26" (1/1) ... [2024-11-28 04:42:26,173 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26" (1/1) ... [2024-11-28 04:42:26,199 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 85 [2024-11-28 04:42:26,199 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:42:26,200 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:42:26,200 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:42:26,200 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:42:26,222 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26" (1/1) ... [2024-11-28 04:42:26,222 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26" (1/1) ... [2024-11-28 04:42:26,226 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26" (1/1) ... [2024-11-28 04:42:26,244 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 04:42:26,248 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26" (1/1) ... [2024-11-28 04:42:26,248 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26" (1/1) ... [2024-11-28 04:42:26,263 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26" (1/1) ... [2024-11-28 04:42:26,271 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26" (1/1) ... [2024-11-28 04:42:26,277 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26" (1/1) ... [2024-11-28 04:42:26,282 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26" (1/1) ... [2024-11-28 04:42:26,283 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26" (1/1) ... [2024-11-28 04:42:26,289 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:42:26,290 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:42:26,293 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:42:26,294 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:42:26,295 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26" (1/1) ... [2024-11-28 04:42:26,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:42:26,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:26,338 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:26,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:42:26,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:42:26,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 04:42:26,369 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:42:26,369 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:42:26,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:42:26,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:42:26,440 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:42:26,442 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:42:26,745 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-28 04:42:26,746 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:42:26,756 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:42:26,756 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:42:26,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:26 BoogieIcfgContainer [2024-11-28 04:42:26,757 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:42:26,760 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:42:26,760 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:42:26,765 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:42:26,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:42:25" (1/3) ... [2024-11-28 04:42:26,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78cd0e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:42:26, skipping insertion in model container [2024-11-28 04:42:26,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26" (2/3) ... [2024-11-28 04:42:26,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78cd0e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:42:26, skipping insertion in model container [2024-11-28 04:42:26,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:26" (3/3) ... [2024-11-28 04:42:26,768 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-37.i [2024-11-28 04:42:26,784 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:42:26,785 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-37.i that has 2 procedures, 41 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:42:26,842 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:42:26,854 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;@d98f90f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:42:26,855 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:42:26,859 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 04:42:26,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 04:42:26,867 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:26,868 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:42:26,868 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:42:26,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:26,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1910201472, now seen corresponding path program 1 times [2024-11-28 04:42:26,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:42:26,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [740086432] [2024-11-28 04:42:26,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:26,885 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 04:42:26,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:42:26,890 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 04:42:26,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 04:42:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:27,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:42:27,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:27,121 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:42:27,121 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:42:27,121 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:42:27,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [740086432] [2024-11-28 04:42:27,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [740086432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:42:27,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:42:27,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:42:27,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355161541] [2024-11-28 04:42:27,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:42:27,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:42:27,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:42:27,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:42:27,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:42:27,172 INFO L87 Difference]: Start difference. First operand has 41 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:42:27,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:27,193 INFO L93 Difference]: Finished difference Result 75 states and 117 transitions. [2024-11-28 04:42:27,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:42:27,195 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 65 [2024-11-28 04:42:27,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:27,201 INFO L225 Difference]: With dead ends: 75 [2024-11-28 04:42:27,202 INFO L226 Difference]: Without dead ends: 37 [2024-11-28 04:42:27,205 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 64 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 04:42:27,208 INFO L435 NwaCegarLoop]: 50 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, 50 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 04:42:27,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:42:27,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-28 04:42:27,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-28 04:42:27,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 04:42:27,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 50 transitions. [2024-11-28 04:42:27,245 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 50 transitions. Word has length 65 [2024-11-28 04:42:27,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:27,246 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 50 transitions. [2024-11-28 04:42:27,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:42:27,246 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions. [2024-11-28 04:42:27,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 04:42:27,248 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:27,249 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:42:27,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 04:42:27,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 04:42:27,450 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:42:27,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:27,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1776469694, now seen corresponding path program 1 times [2024-11-28 04:42:27,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:42:27,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257635487] [2024-11-28 04:42:27,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:27,453 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 04:42:27,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:42:27,456 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 04:42:27,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 04:42:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:27,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:42:27,621 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:27,693 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:42:27,693 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:42:27,693 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:42:27,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257635487] [2024-11-28 04:42:27,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257635487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:42:27,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:42:27,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:42:27,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409340390] [2024-11-28 04:42:27,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:42:27,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:42:27,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:42:27,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:42:27,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:42:27,696 INFO L87 Difference]: Start difference. First operand 37 states and 50 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:42:27,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:27,802 INFO L93 Difference]: Finished difference Result 71 states and 97 transitions. [2024-11-28 04:42:27,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:42:27,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 65 [2024-11-28 04:42:27,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:27,809 INFO L225 Difference]: With dead ends: 71 [2024-11-28 04:42:27,809 INFO L226 Difference]: Without dead ends: 37 [2024-11-28 04:42:27,809 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:42:27,810 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:27,810 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:42:27,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-28 04:42:27,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-28 04:42:27,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 04:42:27,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 49 transitions. [2024-11-28 04:42:27,817 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 49 transitions. Word has length 65 [2024-11-28 04:42:27,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:27,819 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 49 transitions. [2024-11-28 04:42:27,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:42:27,819 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2024-11-28 04:42:27,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 04:42:27,820 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:27,821 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:42:27,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 04:42:28,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 04:42:28,021 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:42:28,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:28,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1833727996, now seen corresponding path program 1 times [2024-11-28 04:42:28,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:42:28,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958879306] [2024-11-28 04:42:28,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:28,023 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 04:42:28,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:42:28,029 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 04:42:28,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 04:42:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:28,201 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:42:28,216 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:55,415 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-28 04:42:55,415 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:42:55,415 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:42:55,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1958879306] [2024-11-28 04:42:55,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1958879306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:42:55,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:42:55,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:42:55,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076239210] [2024-11-28 04:42:55,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:42:55,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:42:55,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:42:55,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:42:55,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:42:55,418 INFO L87 Difference]: Start difference. First operand 37 states and 49 transitions. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:42:57,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:57,854 INFO L93 Difference]: Finished difference Result 87 states and 112 transitions. [2024-11-28 04:42:57,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:42:57,857 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) Word has length 65 [2024-11-28 04:42:57,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:57,858 INFO L225 Difference]: With dead ends: 87 [2024-11-28 04:42:57,858 INFO L226 Difference]: Without dead ends: 53 [2024-11-28 04:42:57,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:42:57,860 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 68 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:57,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 160 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:42:57,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-28 04:42:57,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2024-11-28 04:42:57,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 37 states have (on average 1.135135135135135) internal successors, (42), 37 states have internal predecessors, (42), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 04:42:57,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2024-11-28 04:42:57,871 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 65 [2024-11-28 04:42:57,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:57,872 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2024-11-28 04:42:57,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:42:57,872 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2024-11-28 04:42:57,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-28 04:42:57,874 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:57,874 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:42:57,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 04:42:58,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 04:42:58,075 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:42:58,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:58,075 INFO L85 PathProgramCache]: Analyzing trace with hash 623397682, now seen corresponding path program 1 times [2024-11-28 04:42:58,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:42:58,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1190033322] [2024-11-28 04:42:58,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:58,076 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 04:42:58,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:42:58,080 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 04:42:58,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 04:42:58,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:58,187 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:42:58,190 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:58,730 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 04:42:58,730 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:59,134 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:42:59,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1190033322] [2024-11-28 04:42:59,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1190033322] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:59,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2080763654] [2024-11-28 04:42:59,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:59,135 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:42:59,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:42:59,137 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:42:59,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-28 04:42:59,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:59,668 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:42:59,671 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:43:21,455 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-28 04:43:21,455 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:43:21,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2080763654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:43:21,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:43:21,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 19 [2024-11-28 04:43:21,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186562694] [2024-11-28 04:43:21,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:43:21,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:43:21,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:43:21,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:43:21,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:43:21,457 INFO L87 Difference]: Start difference. First operand 49 states and 60 transitions. Second operand has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:43:33,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:43:33,490 INFO L93 Difference]: Finished difference Result 120 states and 145 transitions. [2024-11-28 04:43:33,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:43:33,495 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) Word has length 66 [2024-11-28 04:43:33,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:43:33,497 INFO L225 Difference]: With dead ends: 120 [2024-11-28 04:43:33,497 INFO L226 Difference]: Without dead ends: 74 [2024-11-28 04:43:33,498 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=110, Invalid=540, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:43:33,499 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 72 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:43:33,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 221 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2024-11-28 04:43:33,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-28 04:43:33,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 52. [2024-11-28 04:43:33,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 40 states have (on average 1.15) internal successors, (46), 40 states have internal predecessors, (46), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 04:43:33,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 64 transitions. [2024-11-28 04:43:33,510 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 64 transitions. Word has length 66 [2024-11-28 04:43:33,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:43:33,511 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 64 transitions. [2024-11-28 04:43:33,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:43:33,511 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 64 transitions. [2024-11-28 04:43:33,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-28 04:43:33,512 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:43:33,512 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:43:33,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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)] Forceful destruction successful, exit code 0 [2024-11-28 04:43:33,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-28 04:43:33,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 04:43:33,913 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:43:33,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:43:33,914 INFO L85 PathProgramCache]: Analyzing trace with hash 230370672, now seen corresponding path program 1 times [2024-11-28 04:43:33,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:43:33,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217043454] [2024-11-28 04:43:33,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:43:33,914 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 04:43:33,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:43:33,917 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 04:43:33,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 04:43:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:43:34,010 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:43:34,012 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:43:34,752 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 04:43:34,752 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:43:35,181 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:43:35,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217043454] [2024-11-28 04:43:35,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217043454] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:43:35,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [227888793] [2024-11-28 04:43:35,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:43:35,181 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:43:35,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:43:35,183 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:43:35,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-28 04:43:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:43:35,540 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:43:35,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:43:55,269 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-28 04:43:55,269 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:43:55,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [227888793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:43:55,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:43:55,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 18 [2024-11-28 04:43:55,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935418006] [2024-11-28 04:43:55,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:43:55,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:43:55,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:43:55,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:43:55,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:43:55,271 INFO L87 Difference]: Start difference. First operand 52 states and 64 transitions. Second operand has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 13 states have internal predecessors, (27), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:04,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:04,181 INFO L93 Difference]: Finished difference Result 139 states and 174 transitions. [2024-11-28 04:44:04,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:44:04,182 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 13 states have internal predecessors, (27), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) Word has length 66 [2024-11-28 04:44:04,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:04,184 INFO L225 Difference]: With dead ends: 139 [2024-11-28 04:44:04,184 INFO L226 Difference]: Without dead ends: 90 [2024-11-28 04:44:04,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=117, Invalid=533, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:44:04,186 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 23 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:04,186 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 269 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-28 04:44:04,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-28 04:44:04,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 87. [2024-11-28 04:44:04,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 64 states have (on average 1.125) internal successors, (72), 64 states have internal predecessors, (72), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:44:04,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 108 transitions. [2024-11-28 04:44:04,205 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 108 transitions. Word has length 66 [2024-11-28 04:44:04,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:04,206 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 108 transitions. [2024-11-28 04:44:04,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 13 states have internal predecessors, (27), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:04,206 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 108 transitions. [2024-11-28 04:44:04,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 04:44:04,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:04,208 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:44:04,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 04:44:04,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-11-28 04:44:04,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 04:44:04,609 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:04,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:04,609 INFO L85 PathProgramCache]: Analyzing trace with hash -52475626, now seen corresponding path program 1 times [2024-11-28 04:44:04,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:44:04,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328359926] [2024-11-28 04:44:04,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:04,610 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 04:44:04,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:44:04,612 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 04:44:04,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-28 04:44:04,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:04,727 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:44:04,729 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:44:05,508 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 04:44:05,508 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:44:06,016 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:44:06,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328359926] [2024-11-28 04:44:06,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1328359926] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:44:06,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1646623700] [2024-11-28 04:44:06,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:06,017 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:44:06,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:44:06,019 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:44:06,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-28 04:44:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:06,631 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:44:06,634 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:44:30,338 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-28 04:44:30,338 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:44:30,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1646623700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:30,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:44:30,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 20 [2024-11-28 04:44:30,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424673524] [2024-11-28 04:44:30,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:30,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:44:30,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:44:30,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:44:30,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:44:30,341 INFO L87 Difference]: Start difference. First operand 87 states and 108 transitions. Second operand has 15 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 15 states have internal predecessors, (28), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:44,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:44,635 INFO L93 Difference]: Finished difference Result 113 states and 134 transitions. [2024-11-28 04:44:44,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:44:44,640 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 15 states have internal predecessors, (28), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) Word has length 67 [2024-11-28 04:44:44,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:44,641 INFO L225 Difference]: With dead ends: 113 [2024-11-28 04:44:44,641 INFO L226 Difference]: Without dead ends: 111 [2024-11-28 04:44:44,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=122, Invalid=580, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:44:44,643 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 74 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:44,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 225 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2024-11-28 04:44:44,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-28 04:44:44,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 87. [2024-11-28 04:44:44,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 64 states have (on average 1.125) internal successors, (72), 64 states have internal predecessors, (72), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:44:44,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 108 transitions. [2024-11-28 04:44:44,662 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 108 transitions. Word has length 67 [2024-11-28 04:44:44,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:44,662 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 108 transitions. [2024-11-28 04:44:44,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 15 states have internal predecessors, (28), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 04:44:44,663 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 108 transitions. [2024-11-28 04:44:44,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 04:44:44,665 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:44,665 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:44,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-28 04:44:44,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2024-11-28 04:44:45,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 04:44:45,066 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:45,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:45,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1317365260, now seen corresponding path program 1 times [2024-11-28 04:44:45,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:44:45,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1027169083] [2024-11-28 04:44:45,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:45,067 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 04:44:45,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:44:45,069 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 04:44:45,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 (11)] Waiting until timeout for monitored process [2024-11-28 04:44:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:45,240 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:44:45,243 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:31,427 INFO L134 CoverageAnalysis]: Checked inductivity of 637 backedges. 51 proven. 10 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2024-11-28 04:45:31,427 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:47:02,576 INFO L134 CoverageAnalysis]: Checked inductivity of 637 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2024-11-28 04:47:02,576 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:47:02,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1027169083] [2024-11-28 04:47:02,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1027169083] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:02,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:47:02,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 25 [2024-11-28 04:47:02,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235894660] [2024-11-28 04:47:02,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:02,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:47:02,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:47:02,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:47:02,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:47:02,579 INFO L87 Difference]: Start difference. First operand 87 states and 108 transitions. Second operand has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-28 04:47:09,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:09,186 INFO L93 Difference]: Finished difference Result 145 states and 179 transitions. [2024-11-28 04:47:09,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:47:09,191 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 128 [2024-11-28 04:47:09,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:09,192 INFO L225 Difference]: With dead ends: 145 [2024-11-28 04:47:09,192 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 04:47:09,193 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2024-11-28 04:47:09,194 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 113 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:09,194 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 231 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-28 04:47:09,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 04:47:09,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 04:47:09,195 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 04:47:09,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 04:47:09,195 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 128 [2024-11-28 04:47:09,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:09,195 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:47:09,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-28 04:47:09,196 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:47:09,196 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 04:47:09,200 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 04:47:09,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 (11)] Ended with exit code 0 [2024-11-28 04:47:09,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/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 04:47:09,403 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:09,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 04:47:20,928 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:47:20,940 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-28 04:47:20,940 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-28 04:47:20,940 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-28 04:47:20,941 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-28 04:47:20,941 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-28 04:47:20,941 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-28 04:47:20,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:47:20 BoogieIcfgContainer [2024-11-28 04:47:20,942 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:47:20,942 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:47:20,942 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:47:20,942 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:47:20,943 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:26" (3/4) ... [2024-11-28 04:47:20,945 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:47:20,951 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-28 04:47:20,956 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-28 04:47:20,956 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 04:47:20,956 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 04:47:20,956 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 04:47:21,045 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:47:21,045 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:47:21,046 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:47:21,047 INFO L158 Benchmark]: Toolchain (without parser) took 295291.90ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 92.1MB in the beginning and 540.5MB in the end (delta: -448.4MB). Peak memory consumption was 636.4MB. Max. memory is 16.1GB. [2024-11-28 04:47:21,048 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 117.4MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:47:21,048 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.19ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 79.1MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:47:21,048 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.48ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 77.6MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:47:21,049 INFO L158 Benchmark]: Boogie Preprocessor took 89.58ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 75.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:47:21,050 INFO L158 Benchmark]: RCFGBuilder took 466.98ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 61.6MB in the end (delta: 13.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:47:21,050 INFO L158 Benchmark]: TraceAbstraction took 294181.81ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 61.0MB in the beginning and 544.5MB in the end (delta: -483.4MB). Peak memory consumption was 602.9MB. Max. memory is 16.1GB. [2024-11-28 04:47:21,051 INFO L158 Benchmark]: Witness Printer took 103.84ms. Allocated memory is still 1.2GB. Free memory was 544.5MB in the beginning and 540.5MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:47:21,053 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 117.4MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 390.19ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 79.1MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.48ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 77.6MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.58ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 75.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 466.98ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 61.6MB in the end (delta: 13.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 294181.81ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 61.0MB in the beginning and 544.5MB in the end (delta: -483.4MB). Peak memory consumption was 602.9MB. Max. memory is 16.1GB. * Witness Printer took 103.84ms. Allocated memory is still 1.2GB. Free memory was 544.5MB in the beginning and 540.5MB in the end (delta: 4.0MB). 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: 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 * 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, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 282.6s, OverallIterations: 7, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 44.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 375 SdHoareTripleChecker+Valid, 28.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 350 mSDsluCounter, 1243 SdHoareTripleChecker+Invalid, 26.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 945 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1462 IncrementalHoareTripleChecker+Invalid, 1536 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 298 mSDtfsCounter, 1462 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1043 GetRequests, 918 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 729 ImplicationChecksByTransitivity, 48.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=5, InterpolantAutomatonStates: 86, 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, 7 MinimizatonAttempts, 53 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 233.4s InterpolantComputationTime, 721 NumberOfCodeBlocks, 721 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 838 ConstructedInterpolants, 29 QuantifiedInterpolants, 6153 SizeOfPredicates, 91 NumberOfNonLiveVariables, 1232 ConjunctsInSsa, 112 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 2488/2570 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 RESULT: Ultimate proved your program to be correct! [2024-11-28 04:47:21,269 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-11-28 04:47:21,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aa0ca7-80df-49c3-ae6d-4581f594da24/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE