./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.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_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/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_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/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_82a3acc5-3cce-4ea1-9272-460ba8420a83/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 9946b8f2044511113ae8f74201f189348f6c8338b35f7642acfb4580613f868c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:32:59,003 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:32:59,108 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:32:59,116 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:32:59,117 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:32:59,152 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:32:59,153 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:32:59,153 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:32:59,154 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:32:59,154 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:32:59,154 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:32:59,154 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:32:59,154 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:32:59,154 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:32:59,155 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:32:59,155 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:32:59,155 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:32:59,155 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:32:59,155 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:32:59,155 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:32:59,155 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:32:59,156 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:32:59,156 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:32:59,156 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:32:59,156 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:32:59,156 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:32:59,156 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:32:59,156 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:32:59,156 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:32:59,156 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:32:59,157 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:32:59,157 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:32:59,157 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:32:59,157 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:32:59,157 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:32:59,157 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:32:59,157 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:32:59,157 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:32:59,158 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:32:59,158 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:32:59,158 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:32:59,158 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:32:59,158 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:32:59,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:32:59,158 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:32:59,158 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:32:59,158 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:32:59,158 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:32:59,158 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_82a3acc5-3cce-4ea1-9272-460ba8420a83/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 -> 9946b8f2044511113ae8f74201f189348f6c8338b35f7642acfb4580613f868c [2024-11-27 20:32:59,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:32:59,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:32:59,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:32:59,508 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:32:59,509 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:32:59,511 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i [2024-11-27 20:33:02,440 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/data/cdb8dcf4b/3b3f49e6dbf8421eba0079afd3e1487a/FLAG9b0f031ad [2024-11-27 20:33:02,762 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:33:02,763 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i [2024-11-27 20:33:02,769 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/data/cdb8dcf4b/3b3f49e6dbf8421eba0079afd3e1487a/FLAG9b0f031ad [2024-11-27 20:33:02,782 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/data/cdb8dcf4b/3b3f49e6dbf8421eba0079afd3e1487a [2024-11-27 20:33:02,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:33:02,785 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:33:02,787 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:33:02,787 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:33:02,791 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:33:02,792 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:33:02" (1/1) ... [2024-11-27 20:33:02,793 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3786b6bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:02, skipping insertion in model container [2024-11-27 20:33:02,793 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:33:02" (1/1) ... [2024-11-27 20:33:02,814 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:33:02,967 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_82a3acc5-3cce-4ea1-9272-460ba8420a83/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i[913,926] [2024-11-27 20:33:03,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:33:03,014 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:33:03,024 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_82a3acc5-3cce-4ea1-9272-460ba8420a83/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i[913,926] [2024-11-27 20:33:03,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:33:03,060 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:33:03,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03 WrapperNode [2024-11-27 20:33:03,061 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:33:03,062 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:33:03,062 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:33:03,062 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:33:03,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:03,079 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:03,097 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 106 [2024-11-27 20:33:03,098 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:33:03,098 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:33:03,099 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:33:03,099 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:33:03,106 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:03,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:03,109 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:03,120 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 20:33:03,120 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:03,120 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:03,124 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:03,125 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:03,129 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:03,130 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:03,131 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:03,133 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:33:03,133 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:33:03,134 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:33:03,134 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:33:03,135 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (1/1) ... [2024-11-27 20:33:03,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:33:03,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:33:03,171 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:33:03,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:33:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:33:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 20:33:03,202 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 20:33:03,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:33:03,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:33:03,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:33:03,275 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:33:03,276 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:33:03,579 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-27 20:33:03,579 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:33:03,589 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:33:03,590 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:33:03,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:33:03 BoogieIcfgContainer [2024-11-27 20:33:03,590 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:33:03,593 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:33:03,593 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:33:03,598 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:33:03,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:33:02" (1/3) ... [2024-11-27 20:33:03,599 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@538ebda0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:33:03, skipping insertion in model container [2024-11-27 20:33:03,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:03" (2/3) ... [2024-11-27 20:33:03,599 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@538ebda0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:33:03, skipping insertion in model container [2024-11-27 20:33:03,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:33:03" (3/3) ... [2024-11-27 20:33:03,600 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-69.i [2024-11-27 20:33:03,614 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:33:03,616 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-69.i that has 2 procedures, 52 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 20:33:03,676 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:33:03,688 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;@770ffd9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:33:03,688 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:33:03,693 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 35 states have internal predecessors, (47), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 20:33:03,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-27 20:33:03,702 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:03,703 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:33:03,704 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:03,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:03,709 INFO L85 PathProgramCache]: Analyzing trace with hash 18237889, now seen corresponding path program 1 times [2024-11-27 20:33:03,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:03,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155244702] [2024-11-27 20:33:03,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:03,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:03,953 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-27 20:33:03,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:03,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155244702] [2024-11-27 20:33:03,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155244702] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:33:03,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197058178] [2024-11-27 20:33:03,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:03,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:33:03,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:33:03,959 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:33:03,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:33:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:04,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 20:33:04,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:33:04,185 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-27 20:33:04,188 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:33:04,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197058178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:04,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:33:04,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 20:33:04,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259783474] [2024-11-27 20:33:04,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:04,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:33:04,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:04,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:33:04,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:33:04,217 INFO L87 Difference]: Start difference. First operand has 52 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 35 states have internal predecessors, (47), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-27 20:33:04,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:04,237 INFO L93 Difference]: Finished difference Result 97 states and 163 transitions. [2024-11-27 20:33:04,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:33:04,238 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97 [2024-11-27 20:33:04,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:04,244 INFO L225 Difference]: With dead ends: 97 [2024-11-27 20:33:04,244 INFO L226 Difference]: Without dead ends: 48 [2024-11-27 20:33:04,247 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:33:04,250 INFO L435 NwaCegarLoop]: 70 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, 70 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:04,251 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:33:04,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-27 20:33:04,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-11-27 20:33:04,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 20:33:04,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 70 transitions. [2024-11-27 20:33:04,301 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 70 transitions. Word has length 97 [2024-11-27 20:33:04,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:04,302 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 70 transitions. [2024-11-27 20:33:04,302 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-27 20:33:04,302 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 70 transitions. [2024-11-27 20:33:04,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-27 20:33:04,306 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:04,307 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:33:04,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:33:04,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 20:33:04,508 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:04,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:04,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1234104317, now seen corresponding path program 1 times [2024-11-27 20:33:04,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:04,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480597209] [2024-11-27 20:33:04,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:04,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:33:04,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2031686029] [2024-11-27 20:33:04,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:04,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:33:04,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:33:04,631 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:33:04,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:33:04,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:33:04,796 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:33:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:33:04,906 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 20:33:04,907 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 20:33:04,908 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 20:33:04,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 20:33:05,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:33:05,114 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-27 20:33:05,164 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:33:05,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:33:05 BoogieIcfgContainer [2024-11-27 20:33:05,168 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:33:05,168 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:33:05,169 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:33:05,169 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:33:05,169 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:33:03" (3/4) ... [2024-11-27 20:33:05,172 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 20:33:05,173 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:33:05,173 INFO L158 Benchmark]: Toolchain (without parser) took 2387.75ms. Allocated memory is still 117.4MB. Free memory was 93.9MB in the beginning and 56.4MB in the end (delta: 37.5MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2024-11-27 20:33:05,174 INFO L158 Benchmark]: CDTParser took 0.84ms. Allocated memory is still 167.8MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:33:05,174 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.83ms. Allocated memory is still 117.4MB. Free memory was 93.9MB in the beginning and 81.3MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:33:05,175 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.85ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 79.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:33:05,175 INFO L158 Benchmark]: Boogie Preprocessor took 34.44ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 77.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:33:05,175 INFO L158 Benchmark]: RCFGBuilder took 456.78ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 62.6MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:33:05,176 INFO L158 Benchmark]: TraceAbstraction took 1575.18ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 57.0MB in the end (delta: 5.3MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2024-11-27 20:33:05,176 INFO L158 Benchmark]: Witness Printer took 4.17ms. Allocated memory is still 117.4MB. Free memory was 57.0MB in the beginning and 56.4MB in the end (delta: 604.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:33:05,178 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84ms. Allocated memory is still 167.8MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.83ms. Allocated memory is still 117.4MB. Free memory was 93.9MB in the beginning and 81.3MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.85ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 79.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.44ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 77.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 456.78ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 62.6MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1575.18ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 57.0MB in the end (delta: 5.3MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Witness Printer took 4.17ms. Allocated memory is still 117.4MB. Free memory was 57.0MB in the beginning and 56.4MB in the end (delta: 604.1kB). 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 someBinaryDOUBLEComparisonOperation at line 102, overapproximation of someBinaryDOUBLEComparisonOperation at line 97. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -100; [L23] unsigned long int var_1_2 = 0; [L24] unsigned long int var_1_3 = 8; [L25] unsigned long int var_1_4 = 256; [L26] unsigned long int var_1_5 = 500; [L27] signed char var_1_7 = -64; [L28] signed char var_1_8 = -8; [L29] unsigned char var_1_9 = 0; [L30] unsigned char var_1_10 = 0; [L31] double var_1_11 = 4.625; [L32] double var_1_13 = 15.5; VAL [isInitial=0, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_2=0, var_1_3=8, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L106] isInitial = 1 [L107] FCALL initially() [L109] FCALL updateLastVariables() [L110] CALL updateVariables() [L75] var_1_2 = __VERIFIER_nondet_ulong() [L76] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=8, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=8, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L76] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=8, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L77] CALL assume_abort_if_not(var_1_2 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=8, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=8, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L77] RET assume_abort_if_not(var_1_2 <= 4294967295) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=8, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L78] var_1_3 = __VERIFIER_nondet_ulong() [L79] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L79] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L80] CALL assume_abort_if_not(var_1_3 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L80] RET assume_abort_if_not(var_1_3 <= 4294967295) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L81] var_1_4 = __VERIFIER_nondet_ulong() [L82] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L82] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L83] CALL assume_abort_if_not(var_1_4 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L83] RET assume_abort_if_not(var_1_4 <= 4294967295) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L84] var_1_5 = __VERIFIER_nondet_ulong() [L85] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=-8, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=-8, var_1_9=0] [L85] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=-8, var_1_9=0] [L86] CALL assume_abort_if_not(var_1_5 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=-8, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=-8, var_1_9=0] [L86] RET assume_abort_if_not(var_1_5 <= 4294967295) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=-8, var_1_9=0] [L87] var_1_8 = __VERIFIER_nondet_char() [L88] CALL assume_abort_if_not(var_1_8 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L88] RET assume_abort_if_not(var_1_8 >= -127) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L89] CALL assume_abort_if_not(var_1_8 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L89] RET assume_abort_if_not(var_1_8 <= 126) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L90] var_1_9 = __VERIFIER_nondet_uchar() [L91] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0] [L91] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0] [L92] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L92] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L93] var_1_10 = __VERIFIER_nondet_uchar() [L94] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L94] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L95] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L95] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L96] var_1_13 = __VERIFIER_nondet_double() [L97] 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, var_1_10=0, var_1_11=37/8, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L97] 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, var_1_10=0, var_1_11=37/8, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L110] RET updateVariables() [L111] CALL step() [L36] COND TRUE var_1_2 < (((((var_1_4 * var_1_5)) > (var_1_3)) ? ((var_1_4 * var_1_5)) : (var_1_3))) [L37] var_1_7 = var_1_8 VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_1=-100, var_1_2=-8589934592, var_1_3=1, var_1_4=1, var_1_5=0, var_1_7=0, var_1_8=0, var_1_9=0] [L49] unsigned long int stepLocal_1 = var_1_5; [L50] unsigned long int stepLocal_0 = var_1_2 * ((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4))); VAL [isInitial=1, stepLocal_0=-8589934592, stepLocal_1=0, var_1_10=0, var_1_11=37/8, var_1_1=-100, var_1_2=-8589934592, var_1_3=1, var_1_4=1, var_1_5=0, var_1_7=0, var_1_8=0, var_1_9=0] [L51] COND FALSE !(stepLocal_0 < var_1_5) VAL [isInitial=1, stepLocal_1=0, var_1_10=0, var_1_11=37/8, var_1_1=-100, var_1_2=-8589934592, var_1_3=1, var_1_4=1, var_1_5=0, var_1_7=0, var_1_8=0, var_1_9=0] [L58] unsigned char stepLocal_3 = var_1_9; [L59] signed long int stepLocal_2 = var_1_1 + var_1_7; VAL [isInitial=1, stepLocal_1=0, stepLocal_2=-100, stepLocal_3=0, var_1_10=0, var_1_11=37/8, var_1_1=-100, var_1_2=-8589934592, var_1_3=1, var_1_4=1, var_1_5=0, var_1_7=0, var_1_8=0, var_1_9=0] [L60] COND FALSE !(((var_1_7 + var_1_8) == var_1_4) && stepLocal_3) [L71] var_1_11 = var_1_13 VAL [isInitial=1, stepLocal_1=0, stepLocal_2=-100, var_1_10=0, var_1_11=2, var_1_13=2, var_1_1=-100, var_1_2=-8589934592, var_1_3=1, var_1_4=1, var_1_5=0, var_1_7=0, var_1_8=0, var_1_9=0] [L111] RET step() [L112] CALL, EXPR property() [L102-L103] return ((((var_1_2 * ((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4)))) < var_1_5) ? ((var_1_5 > var_1_2) ? (var_1_1 == ((signed short int) var_1_7)) : (var_1_1 == ((signed short int) var_1_7))) : 1) && ((var_1_2 < (((((var_1_4 * var_1_5)) > (var_1_3)) ? ((var_1_4 * var_1_5)) : (var_1_3)))) ? (var_1_7 == ((signed char) var_1_8)) : ((var_1_9 || var_1_10) ? (var_1_7 == ((signed char) var_1_8)) : ((var_1_3 < var_1_4) ? (var_1_7 == ((signed char) var_1_8)) : (var_1_7 == ((signed char) -4)))))) && ((((var_1_7 + var_1_8) == var_1_4) && var_1_9) ? ((! var_1_10) ? (((var_1_1 + var_1_7) != var_1_8) ? (var_1_11 == ((double) var_1_13)) : (var_1_11 == ((double) var_1_13))) : (var_1_11 == ((double) var_1_13))) : (var_1_11 == ((double) var_1_13))) ; VAL [\result=0, isInitial=1, var_1_10=0, var_1_11=2, var_1_13=2, var_1_1=-100, var_1_2=-8589934592, var_1_3=1, var_1_4=1, var_1_5=0, var_1_7=0, var_1_8=0, var_1_9=0] [L112] RET, EXPR property() [L112] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=0, var_1_11=2, var_1_13=2, var_1_1=-100, var_1_2=-8589934592, var_1_3=1, var_1_4=1, var_1_5=0, var_1_7=0, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [isInitial=1, var_1_10=0, var_1_11=2, var_1_13=2, var_1_1=-100, var_1_2=-8589934592, var_1_3=1, var_1_4=1, var_1_5=0, var_1_7=0, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 70 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 70 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 388 NumberOfCodeBlocks, 388 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 192 SizeOfPredicates, 0 NumberOfNonLiveVariables, 222 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 812/840 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-27 20:33:05,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/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_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/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_82a3acc5-3cce-4ea1-9272-460ba8420a83/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 9946b8f2044511113ae8f74201f189348f6c8338b35f7642acfb4580613f868c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:33:07,808 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:33:07,942 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-27 20:33:07,948 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:33:07,948 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:33:07,973 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:33:07,974 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:33:07,974 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:33:07,974 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:33:07,975 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:33:07,975 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:33:07,975 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:33:07,975 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:33:07,975 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:33:07,975 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:33:07,975 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:33:07,976 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:33:07,976 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:33:07,976 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:33:07,976 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:33:07,976 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:33:07,976 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:33:07,976 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:33:07,976 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 20:33:07,976 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 20:33:07,976 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 20:33:07,976 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:33:07,977 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:33:07,977 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:33:07,977 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:33:07,977 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:33:07,977 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:33:07,977 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:33:07,977 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:33:07,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:33:07,977 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:33:07,978 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:33:07,978 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:33:07,978 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:33:07,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:33:07,979 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:33:07,979 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:33:07,979 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:33:07,979 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:33:07,979 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 20:33:07,979 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 20:33:07,980 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:33:07,980 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:33:07,980 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:33:07,980 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:33:07,980 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_82a3acc5-3cce-4ea1-9272-460ba8420a83/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 -> 9946b8f2044511113ae8f74201f189348f6c8338b35f7642acfb4580613f868c [2024-11-27 20:33:08,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:33:08,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:33:08,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:33:08,286 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:33:08,287 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:33:08,288 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i [2024-11-27 20:33:11,140 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/data/78679baf8/cf572b826ff14422b305b8bf5a3f1198/FLAGe5631c974 [2024-11-27 20:33:11,415 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:33:11,417 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i [2024-11-27 20:33:11,427 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/data/78679baf8/cf572b826ff14422b305b8bf5a3f1198/FLAGe5631c974 [2024-11-27 20:33:11,451 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/data/78679baf8/cf572b826ff14422b305b8bf5a3f1198 [2024-11-27 20:33:11,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:33:11,454 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:33:11,457 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:33:11,458 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:33:11,462 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:33:11,463 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:33:11" (1/1) ... [2024-11-27 20:33:11,464 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2053d2dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:11, skipping insertion in model container [2024-11-27 20:33:11,464 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:33:11" (1/1) ... [2024-11-27 20:33:11,483 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:33:11,663 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_82a3acc5-3cce-4ea1-9272-460ba8420a83/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i[913,926] [2024-11-27 20:33:11,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:33:11,762 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:33:11,779 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_82a3acc5-3cce-4ea1-9272-460ba8420a83/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i[913,926] [2024-11-27 20:33:11,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:33:11,829 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:33:11,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:11 WrapperNode [2024-11-27 20:33:11,830 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:33:11,832 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:33:11,833 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:33:11,834 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:33:11,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:11" (1/1) ... [2024-11-27 20:33:11,858 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:11" (1/1) ... [2024-11-27 20:33:11,887 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 105 [2024-11-27 20:33:11,891 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:33:11,891 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:33:11,892 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:33:11,892 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:33:11,908 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:11" (1/1) ... [2024-11-27 20:33:11,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:11" (1/1) ... [2024-11-27 20:33:11,911 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:11" (1/1) ... [2024-11-27 20:33:11,934 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 20:33:11,935 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:11" (1/1) ... [2024-11-27 20:33:11,935 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:11" (1/1) ... [2024-11-27 20:33:11,942 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:11" (1/1) ... [2024-11-27 20:33:11,951 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:11" (1/1) ... [2024-11-27 20:33:11,957 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:11" (1/1) ... [2024-11-27 20:33:11,958 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:11" (1/1) ... [2024-11-27 20:33:11,959 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:11" (1/1) ... [2024-11-27 20:33:11,966 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:33:11,970 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:33:11,971 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:33:11,971 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:33:11,972 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:11" (1/1) ... [2024-11-27 20:33:11,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:33:12,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:33:12,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:33:12,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:33:12,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:33:12,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-27 20:33:12,037 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 20:33:12,038 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 20:33:12,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:33:12,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:33:12,111 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:33:12,113 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:33:12,437 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-27 20:33:12,437 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:33:12,447 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:33:12,447 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:33:12,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:33:12 BoogieIcfgContainer [2024-11-27 20:33:12,448 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:33:12,450 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:33:12,450 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:33:12,455 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:33:12,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:33:11" (1/3) ... [2024-11-27 20:33:12,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@766434ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:33:12, skipping insertion in model container [2024-11-27 20:33:12,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:11" (2/3) ... [2024-11-27 20:33:12,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@766434ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:33:12, skipping insertion in model container [2024-11-27 20:33:12,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:33:12" (3/3) ... [2024-11-27 20:33:12,457 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-69.i [2024-11-27 20:33:12,472 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:33:12,473 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-69.i that has 2 procedures, 52 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 20:33:12,525 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:33:12,537 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;@10ae8220, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:33:12,537 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:33:12,541 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 35 states have internal predecessors, (47), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 20:33:12,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-27 20:33:12,550 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:12,552 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:33:12,552 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:12,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:12,559 INFO L85 PathProgramCache]: Analyzing trace with hash 18237889, now seen corresponding path program 1 times [2024-11-27 20:33:12,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:33:12,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [307352179] [2024-11-27 20:33:12,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:12,574 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:33:12,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:33:12,579 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:33:12,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-27 20:33:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:12,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 20:33:12,801 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:33:12,861 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-11-27 20:33:12,861 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:33:12,863 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:33:12,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [307352179] [2024-11-27 20:33:12,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [307352179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:12,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:33:12,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:33:12,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018900998] [2024-11-27 20:33:12,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:12,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:33:12,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:33:12,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:33:12,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:33:12,898 INFO L87 Difference]: Start difference. First operand has 52 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 35 states have internal predecessors, (47), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-27 20:33:12,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:12,933 INFO L93 Difference]: Finished difference Result 97 states and 163 transitions. [2024-11-27 20:33:12,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:33:12,935 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97 [2024-11-27 20:33:12,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:12,942 INFO L225 Difference]: With dead ends: 97 [2024-11-27 20:33:12,943 INFO L226 Difference]: Without dead ends: 48 [2024-11-27 20:33:12,948 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:33:12,951 INFO L435 NwaCegarLoop]: 70 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, 70 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:12,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:33:12,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-27 20:33:13,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-11-27 20:33:13,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 20:33:13,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 70 transitions. [2024-11-27 20:33:13,023 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 70 transitions. Word has length 97 [2024-11-27 20:33:13,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:13,025 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 70 transitions. [2024-11-27 20:33:13,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-27 20:33:13,025 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 70 transitions. [2024-11-27 20:33:13,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-27 20:33:13,030 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:13,031 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:33:13,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-27 20:33:13,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:33:13,235 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:13,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:13,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1234104317, now seen corresponding path program 1 times [2024-11-27 20:33:13,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:33:13,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2113473649] [2024-11-27 20:33:13,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:13,237 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:33:13,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:33:13,239 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:33:13,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-27 20:33:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:13,443 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 20:33:13,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:33:36,868 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-27 20:33:36,868 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:33:36,869 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:33:36,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2113473649] [2024-11-27 20:33:36,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2113473649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:36,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:33:36,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 20:33:36,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014477319] [2024-11-27 20:33:36,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:36,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:33:36,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:33:36,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:33:36,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:33:36,879 INFO L87 Difference]: Start difference. First operand 48 states and 70 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-27 20:33:46,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:46,333 INFO L93 Difference]: Finished difference Result 81 states and 110 transitions. [2024-11-27 20:33:46,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:33:46,339 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 97 [2024-11-27 20:33:46,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:46,341 INFO L225 Difference]: With dead ends: 81 [2024-11-27 20:33:46,341 INFO L226 Difference]: Without dead ends: 79 [2024-11-27 20:33:46,342 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:33:46,342 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 141 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:46,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 212 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-27 20:33:46,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-27 20:33:46,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 61. [2024-11-27 20:33:46,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 43 states have (on average 1.302325581395349) internal successors, (56), 43 states have internal predecessors, (56), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 20:33:46,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 86 transitions. [2024-11-27 20:33:46,363 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 86 transitions. Word has length 97 [2024-11-27 20:33:46,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:46,363 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 86 transitions. [2024-11-27 20:33:46,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-27 20:33:46,364 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 86 transitions. [2024-11-27 20:33:46,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-27 20:33:46,367 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:46,367 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:33:46,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-27 20:33:46,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:33:46,568 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:46,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:46,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1291265105, now seen corresponding path program 1 times [2024-11-27 20:33:46,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:33:46,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1241212578] [2024-11-27 20:33:46,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:46,569 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:33:46,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:33:46,573 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:33:46,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-27 20:33:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:46,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 20:33:46,754 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:02,006 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-27 20:34:02,006 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:34:02,006 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:34:02,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1241212578] [2024-11-27 20:34:02,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1241212578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:02,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:02,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 20:34:02,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496187954] [2024-11-27 20:34:02,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:02,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:34:02,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:34:02,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:34:02,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:34:02,009 INFO L87 Difference]: Start difference. First operand 61 states and 86 transitions. Second operand has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-27 20:34:06,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:06,999 INFO L93 Difference]: Finished difference Result 79 states and 108 transitions. [2024-11-27 20:34:07,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 20:34:07,002 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 98 [2024-11-27 20:34:07,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:07,004 INFO L225 Difference]: With dead ends: 79 [2024-11-27 20:34:07,005 INFO L226 Difference]: Without dead ends: 77 [2024-11-27 20:34:07,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:34:07,006 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 100 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:07,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 241 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-27 20:34:07,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-27 20:34:07,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 62. [2024-11-27 20:34:07,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 44 states have (on average 1.3181818181818181) internal successors, (58), 44 states have internal predecessors, (58), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 20:34:07,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 88 transitions. [2024-11-27 20:34:07,021 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 88 transitions. Word has length 98 [2024-11-27 20:34:07,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:07,022 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 88 transitions. [2024-11-27 20:34:07,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-27 20:34:07,022 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 88 transitions. [2024-11-27 20:34:07,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-27 20:34:07,024 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:07,025 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:07,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/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)] Ended with exit code 0 [2024-11-27 20:34:07,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:34:07,225 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:07,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:07,226 INFO L85 PathProgramCache]: Analyzing trace with hash -868023798, now seen corresponding path program 1 times [2024-11-27 20:34:07,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:34:07,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [402774224] [2024-11-27 20:34:07,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:07,227 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:34:07,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:34:07,230 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:34:07,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-27 20:34:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:07,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 20:34:07,387 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:19,237 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-27 20:34:19,238 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:34:19,238 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:34:19,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [402774224] [2024-11-27 20:34:19,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [402774224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:19,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:19,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 20:34:19,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917207098] [2024-11-27 20:34:19,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:19,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:34:19,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:34:19,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:34:19,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:34:19,240 INFO L87 Difference]: Start difference. First operand 62 states and 88 transitions. Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-27 20:34:30,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:30,623 INFO L93 Difference]: Finished difference Result 94 states and 128 transitions. [2024-11-27 20:34:30,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 20:34:30,629 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 98 [2024-11-27 20:34:30,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:30,631 INFO L225 Difference]: With dead ends: 94 [2024-11-27 20:34:30,631 INFO L226 Difference]: Without dead ends: 92 [2024-11-27 20:34:30,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2024-11-27 20:34:30,633 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 127 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:30,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 261 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-27 20:34:30,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-27 20:34:30,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 64. [2024-11-27 20:34:30,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 46 states have (on average 1.326086956521739) internal successors, (61), 46 states have internal predecessors, (61), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 20:34:30,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 91 transitions. [2024-11-27 20:34:30,647 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 91 transitions. Word has length 98 [2024-11-27 20:34:30,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:30,648 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 91 transitions. [2024-11-27 20:34:30,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-27 20:34:30,648 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 91 transitions. [2024-11-27 20:34:30,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-27 20:34:30,650 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:30,650 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:30,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-27 20:34:30,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:34:30,851 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:30,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:30,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1443199976, now seen corresponding path program 1 times [2024-11-27 20:34:30,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:34:30,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1142420424] [2024-11-27 20:34:30,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:30,852 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:34:30,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:34:30,854 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:34:30,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-27 20:34:30,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:31,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-27 20:34:31,004 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:38,133 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-27 20:34:38,133 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:34:38,133 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:34:38,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1142420424] [2024-11-27 20:34:38,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1142420424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:38,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:38,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-27 20:34:38,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462274226] [2024-11-27 20:34:38,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:38,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 20:34:38,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:34:38,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 20:34:38,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:34:38,135 INFO L87 Difference]: Start difference. First operand 64 states and 91 transitions. Second operand has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-27 20:34:47,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:47,138 INFO L93 Difference]: Finished difference Result 175 states and 245 transitions. [2024-11-27 20:34:47,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 20:34:47,145 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 99 [2024-11-27 20:34:47,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:47,147 INFO L225 Difference]: With dead ends: 175 [2024-11-27 20:34:47,147 INFO L226 Difference]: Without dead ends: 114 [2024-11-27 20:34:47,148 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2024-11-27 20:34:47,153 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 141 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:47,153 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 291 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-27 20:34:47,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-27 20:34:47,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 73. [2024-11-27 20:34:47,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 55 states have internal predecessors, (74), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 20:34:47,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 104 transitions. [2024-11-27 20:34:47,169 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 104 transitions. Word has length 99 [2024-11-27 20:34:47,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:47,170 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 104 transitions. [2024-11-27 20:34:47,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-27 20:34:47,170 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 104 transitions. [2024-11-27 20:34:47,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-27 20:34:47,176 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:47,176 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:47,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-27 20:34:47,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:34:47,376 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:47,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:47,377 INFO L85 PathProgramCache]: Analyzing trace with hash 2123258346, now seen corresponding path program 1 times [2024-11-27 20:34:47,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:34:47,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [71898722] [2024-11-27 20:34:47,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:47,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:34:47,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:34:47,379 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:34:47,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-27 20:34:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:47,505 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-27 20:34:47,508 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:54,288 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-27 20:34:54,288 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:34:54,288 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:34:54,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [71898722] [2024-11-27 20:34:54,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [71898722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:54,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:54,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-27 20:34:54,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677717965] [2024-11-27 20:34:54,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:54,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 20:34:54,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:34:54,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 20:34:54,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:34:54,291 INFO L87 Difference]: Start difference. First operand 73 states and 104 transitions. Second operand has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-27 20:35:05,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:05,794 INFO L93 Difference]: Finished difference Result 123 states and 164 transitions. [2024-11-27 20:35:05,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 20:35:05,801 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 99 [2024-11-27 20:35:05,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:05,805 INFO L225 Difference]: With dead ends: 123 [2024-11-27 20:35:05,805 INFO L226 Difference]: Without dead ends: 121 [2024-11-27 20:35:05,806 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2024-11-27 20:35:05,808 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 130 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:05,810 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 352 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2024-11-27 20:35:05,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-27 20:35:05,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 71. [2024-11-27 20:35:05,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 53 states have (on average 1.3396226415094339) internal successors, (71), 53 states have internal predecessors, (71), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 20:35:05,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 101 transitions. [2024-11-27 20:35:05,833 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 101 transitions. Word has length 99 [2024-11-27 20:35:05,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:05,833 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 101 transitions. [2024-11-27 20:35:05,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-27 20:35:05,834 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 101 transitions. [2024-11-27 20:35:05,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-27 20:35:05,835 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:05,835 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:05,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-27 20:35:06,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:35:06,036 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:35:06,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:06,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1467296392, now seen corresponding path program 1 times [2024-11-27 20:35:06,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:35:06,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1345442678] [2024-11-27 20:35:06,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:06,038 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:35:06,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:35:06,041 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:35:06,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-27 20:35:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:06,186 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 20:35:06,190 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:13,892 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-27 20:35:13,893 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:35:13,893 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:35:13,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1345442678] [2024-11-27 20:35:13,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1345442678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:13,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:13,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 20:35:13,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600957408] [2024-11-27 20:35:13,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:13,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:35:13,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:35:13,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:35:13,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:35:13,895 INFO L87 Difference]: Start difference. First operand 71 states and 101 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-27 20:35:20,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:20,577 INFO L93 Difference]: Finished difference Result 99 states and 134 transitions. [2024-11-27 20:35:20,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:35:20,580 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 99 [2024-11-27 20:35:20,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:20,582 INFO L225 Difference]: With dead ends: 99 [2024-11-27 20:35:20,582 INFO L226 Difference]: Without dead ends: 97 [2024-11-27 20:35:20,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:35:20,583 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:20,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 268 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-27 20:35:20,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-27 20:35:20,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 65. [2024-11-27 20:35:20,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 47 states have (on average 1.297872340425532) internal successors, (61), 47 states have internal predecessors, (61), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 20:35:20,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 91 transitions. [2024-11-27 20:35:20,600 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 91 transitions. Word has length 99 [2024-11-27 20:35:20,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:20,601 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 91 transitions. [2024-11-27 20:35:20,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-27 20:35:20,601 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 91 transitions. [2024-11-27 20:35:20,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-27 20:35:20,603 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:20,603 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:20,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/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)] Ended with exit code 0 [2024-11-27 20:35:20,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:35:20,804 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:35:20,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:20,804 INFO L85 PathProgramCache]: Analyzing trace with hash 100789354, now seen corresponding path program 1 times [2024-11-27 20:35:20,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:35:20,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062134841] [2024-11-27 20:35:20,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:20,805 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:35:20,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:35:20,810 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:35:20,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/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 [2024-11-27 20:35:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:20,926 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 20:35:20,930 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:27,122 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-27 20:35:27,122 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:35:27,122 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:35:27,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062134841] [2024-11-27 20:35:27,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2062134841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:27,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:27,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 20:35:27,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811505626] [2024-11-27 20:35:27,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:27,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:35:27,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:35:27,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:35:27,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:35:27,124 INFO L87 Difference]: Start difference. First operand 65 states and 91 transitions. Second operand has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-27 20:35:33,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:33,944 INFO L93 Difference]: Finished difference Result 112 states and 150 transitions. [2024-11-27 20:35:33,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 20:35:33,946 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 100 [2024-11-27 20:35:33,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:33,948 INFO L225 Difference]: With dead ends: 112 [2024-11-27 20:35:33,949 INFO L226 Difference]: Without dead ends: 110 [2024-11-27 20:35:33,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2024-11-27 20:35:33,949 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 135 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:33,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 296 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-27 20:35:33,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-27 20:35:33,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 68. [2024-11-27 20:35:33,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 50 states have (on average 1.32) internal successors, (66), 50 states have internal predecessors, (66), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 20:35:33,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 96 transitions. [2024-11-27 20:35:33,967 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 96 transitions. Word has length 100 [2024-11-27 20:35:33,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:33,968 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 96 transitions. [2024-11-27 20:35:33,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-27 20:35:33,968 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 96 transitions. [2024-11-27 20:35:33,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-27 20:35:33,969 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:33,969 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:33,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/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 [2024-11-27 20:35:34,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:35:34,172 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:35:34,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:34,172 INFO L85 PathProgramCache]: Analyzing trace with hash -292237656, now seen corresponding path program 1 times [2024-11-27 20:35:34,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:35:34,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1869387544] [2024-11-27 20:35:34,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:34,173 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:35:34,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:35:34,175 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:35:34,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-27 20:35:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:34,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 20:35:34,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:39,579 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-27 20:35:39,579 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:35:39,579 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:35:39,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1869387544] [2024-11-27 20:35:39,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1869387544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:39,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:39,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 20:35:39,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207895959] [2024-11-27 20:35:39,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:39,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:35:39,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:35:39,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:35:39,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:35:39,581 INFO L87 Difference]: Start difference. First operand 68 states and 96 transitions. Second operand has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-27 20:35:47,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:47,137 INFO L93 Difference]: Finished difference Result 103 states and 139 transitions. [2024-11-27 20:35:47,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 20:35:47,141 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 100 [2024-11-27 20:35:47,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:47,141 INFO L225 Difference]: With dead ends: 103 [2024-11-27 20:35:47,141 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 20:35:47,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2024-11-27 20:35:47,143 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 111 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:47,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 316 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-27 20:35:47,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 20:35:47,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 20:35:47,145 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) [2024-11-27 20:35:47,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 20:35:47,145 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 100 [2024-11-27 20:35:47,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:47,145 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:35:47,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-27 20:35:47,146 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 20:35:47,146 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 20:35:47,149 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 20:35:47,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/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)] Ended with exit code 0 [2024-11-27 20:35:47,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:35:47,354 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:47,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 20:35:49,166 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:35:49,179 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-27 20:35:49,180 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-27 20:35:49,180 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-27 20:35:49,180 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-27 20:35:49,181 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-27 20:35:49,181 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-27 20:35:49,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:35:49 BoogieIcfgContainer [2024-11-27 20:35:49,182 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:35:49,182 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:35:49,182 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:35:49,183 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:35:49,183 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:33:12" (3/4) ... [2024-11-27 20:35:49,186 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 20:35:49,191 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-27 20:35:49,195 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-27 20:35:49,196 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-27 20:35:49,196 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-27 20:35:49,196 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 20:35:49,300 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:35:49,301 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 20:35:49,301 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:35:49,302 INFO L158 Benchmark]: Toolchain (without parser) took 157847.26ms. Allocated memory was 117.4MB in the beginning and 1.0GB in the end (delta: 889.2MB). Free memory was 92.9MB in the beginning and 574.9MB in the end (delta: -482.0MB). Peak memory consumption was 402.4MB. Max. memory is 16.1GB. [2024-11-27 20:35:49,302 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 83.9MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:35:49,302 INFO L158 Benchmark]: CACSL2BoogieTranslator took 374.66ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 79.8MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:35:49,303 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.21ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 78.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:35:49,303 INFO L158 Benchmark]: Boogie Preprocessor took 78.07ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 76.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:35:49,303 INFO L158 Benchmark]: RCFGBuilder took 477.48ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 61.4MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:35:49,304 INFO L158 Benchmark]: TraceAbstraction took 156731.96ms. Allocated memory was 117.4MB in the beginning and 1.0GB in the end (delta: 889.2MB). Free memory was 60.7MB in the beginning and 578.9MB in the end (delta: -518.2MB). Peak memory consumption was 377.3MB. Max. memory is 16.1GB. [2024-11-27 20:35:49,304 INFO L158 Benchmark]: Witness Printer took 118.53ms. Allocated memory is still 1.0GB. Free memory was 578.9MB in the beginning and 574.9MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:35:49,306 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 83.9MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 374.66ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 79.8MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.21ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 78.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 78.07ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 76.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 477.48ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 61.4MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 156731.96ms. Allocated memory was 117.4MB in the beginning and 1.0GB in the end (delta: 889.2MB). Free memory was 60.7MB in the beginning and 578.9MB in the end (delta: -518.2MB). Peak memory consumption was 377.3MB. Max. memory is 16.1GB. * Witness Printer took 118.53ms. Allocated memory is still 1.0GB. Free memory was 578.9MB in the beginning and 574.9MB 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, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 154.8s, OverallIterations: 9, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 67.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1005 SdHoareTripleChecker+Valid, 39.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 997 mSDsluCounter, 2307 SdHoareTripleChecker+Invalid, 34.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1796 mSDsCounter, 338 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3755 IncrementalHoareTripleChecker+Invalid, 4093 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 338 mSolverCounterUnsat, 511 mSDtfsCounter, 3755 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 964 GetRequests, 792 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 46.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=5, InterpolantAutomatonStates: 128, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 226 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 83.8s InterpolantComputationTime, 887 NumberOfCodeBlocks, 887 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 878 ConstructedInterpolants, 0 QuantifiedInterpolants, 5997 SizeOfPredicates, 96 NumberOfNonLiveVariables, 1435 ConjunctsInSsa, 123 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 3780/3780 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! [2024-11-27 20:35:49,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82a3acc5-3cce-4ea1-9272-460ba8420a83/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE