./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-18.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_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/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_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/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_59f707e7-3820-48f2-89c8-94200fd8ebff/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 96484bfe2125966f3f858294999ba06e5bcb55d577c4089dc42afb40d58fe9d6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:47:20,644 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:47:20,721 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:47:20,727 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:47:20,727 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:47:20,771 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:47:20,772 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:47:20,773 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:47:20,773 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:47:20,773 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:47:20,773 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:47:20,773 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:47:20,774 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:47:20,774 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:47:20,774 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:47:20,774 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:47:20,774 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:47:20,774 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:47:20,775 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:47:20,775 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:47:20,775 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:47:20,775 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:47:20,777 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:47:20,777 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:47:20,777 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:47:20,778 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:47:20,778 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:47:20,778 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:47:20,778 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:47:20,778 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:47:20,779 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:47:20,779 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:47:20,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:47:20,779 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:47:20,779 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:47:20,780 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:47:20,780 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:47:20,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:47:20,780 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:47:20,780 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:47:20,780 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:47:20,781 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:47:20,781 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:47:20,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:47:20,781 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:47:20,781 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:47:20,782 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:47:20,782 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:47:20,782 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_59f707e7-3820-48f2-89c8-94200fd8ebff/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 -> 96484bfe2125966f3f858294999ba06e5bcb55d577c4089dc42afb40d58fe9d6 [2024-11-28 04:47:21,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:47:21,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:47:21,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:47:21,190 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:47:21,190 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:47:21,192 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-18.i [2024-11-28 04:47:24,448 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/data/6c5dfb738/a77d1813c6d44841b86cec6691456c6c/FLAGbd34daa18 [2024-11-28 04:47:24,751 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:47:24,751 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-18.i [2024-11-28 04:47:24,758 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/data/6c5dfb738/a77d1813c6d44841b86cec6691456c6c/FLAGbd34daa18 [2024-11-28 04:47:24,772 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/data/6c5dfb738/a77d1813c6d44841b86cec6691456c6c [2024-11-28 04:47:24,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:47:24,776 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:47:24,777 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:47:24,777 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:47:24,782 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:47:24,782 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:47:24" (1/1) ... [2024-11-28 04:47:24,783 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29ad7792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:24, skipping insertion in model container [2024-11-28 04:47:24,783 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:47:24" (1/1) ... [2024-11-28 04:47:24,800 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:47:24,953 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_59f707e7-3820-48f2-89c8-94200fd8ebff/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-18.i[913,926] [2024-11-28 04:47:25,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:47:25,012 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:47:25,024 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_59f707e7-3820-48f2-89c8-94200fd8ebff/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-18.i[913,926] [2024-11-28 04:47:25,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:47:25,062 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:47:25,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:25 WrapperNode [2024-11-28 04:47:25,065 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:47:25,066 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:47:25,066 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:47:25,066 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:47:25,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:25" (1/1) ... [2024-11-28 04:47:25,089 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:25" (1/1) ... [2024-11-28 04:47:25,141 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 142 [2024-11-28 04:47:25,142 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:47:25,142 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:47:25,142 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:47:25,142 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:47:25,151 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:25" (1/1) ... [2024-11-28 04:47:25,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:25" (1/1) ... [2024-11-28 04:47:25,154 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:25" (1/1) ... [2024-11-28 04:47:25,167 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:47:25,167 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:25" (1/1) ... [2024-11-28 04:47:25,167 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:25" (1/1) ... [2024-11-28 04:47:25,173 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:25" (1/1) ... [2024-11-28 04:47:25,174 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:25" (1/1) ... [2024-11-28 04:47:25,177 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:25" (1/1) ... [2024-11-28 04:47:25,179 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:25" (1/1) ... [2024-11-28 04:47:25,180 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:25" (1/1) ... [2024-11-28 04:47:25,183 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:47:25,184 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:47:25,184 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:47:25,184 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:47:25,185 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:25" (1/1) ... [2024-11-28 04:47:25,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:47:25,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:25,219 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:47:25,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:47:25,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:47:25,246 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:47:25,246 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:47:25,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:47:25,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:47:25,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:47:25,335 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:47:25,337 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:47:25,786 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-28 04:47:25,786 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:47:25,796 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:47:25,796 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:47:25,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:47:25 BoogieIcfgContainer [2024-11-28 04:47:25,797 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:47:25,799 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:47:25,799 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:47:25,804 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:47:25,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:47:24" (1/3) ... [2024-11-28 04:47:25,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187ceace and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:47:25, skipping insertion in model container [2024-11-28 04:47:25,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:25" (2/3) ... [2024-11-28 04:47:25,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187ceace and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:47:25, skipping insertion in model container [2024-11-28 04:47:25,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:47:25" (3/3) ... [2024-11-28 04:47:25,807 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-18.i [2024-11-28 04:47:25,821 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:47:25,822 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-18.i that has 2 procedures, 64 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:47:25,880 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:47:25,895 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;@42de201, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:47:25,895 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:47:25,900 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 49 states have (on average 1.4489795918367347) internal successors, (71), 50 states have internal predecessors, (71), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:47:25,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 04:47:25,911 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:25,911 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:25,912 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:25,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:25,918 INFO L85 PathProgramCache]: Analyzing trace with hash -514369375, now seen corresponding path program 1 times [2024-11-28 04:47:25,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:25,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952421431] [2024-11-28 04:47:25,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:25,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:26,250 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-28 04:47:26,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:26,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952421431] [2024-11-28 04:47:26,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952421431] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:26,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408527771] [2024-11-28 04:47:26,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:26,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:26,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:26,260 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:26,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:47:26,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:26,439 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:47:26,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:26,481 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-28 04:47:26,484 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:47:26,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408527771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:26,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:47:26,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:47:26,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644091092] [2024-11-28 04:47:26,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:26,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:47:26,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:26,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:47:26,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:47:26,516 INFO L87 Difference]: Start difference. First operand has 64 states, 49 states have (on average 1.4489795918367347) internal successors, (71), 50 states have internal predecessors, (71), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 04:47:26,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:26,538 INFO L93 Difference]: Finished difference Result 121 states and 196 transitions. [2024-11-28 04:47:26,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:47:26,540 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 87 [2024-11-28 04:47:26,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:26,545 INFO L225 Difference]: With dead ends: 121 [2024-11-28 04:47:26,546 INFO L226 Difference]: Without dead ends: 60 [2024-11-28 04:47:26,548 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:47:26,554 INFO L435 NwaCegarLoop]: 88 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, 88 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:26,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:47:26,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-28 04:47:26,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-28 04:47:26,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 46 states have (on average 1.391304347826087) internal successors, (64), 46 states have internal predecessors, (64), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:47:26,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 88 transitions. [2024-11-28 04:47:26,603 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 88 transitions. Word has length 87 [2024-11-28 04:47:26,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:26,603 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 88 transitions. [2024-11-28 04:47:26,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 04:47:26,604 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 88 transitions. [2024-11-28 04:47:26,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 04:47:26,606 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:26,606 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:26,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:47:26,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:47:26,807 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:26,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:26,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1209871581, now seen corresponding path program 1 times [2024-11-28 04:47:26,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:26,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196036706] [2024-11-28 04:47:26,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:26,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:27,281 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 04:47:27,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:27,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196036706] [2024-11-28 04:47:27,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196036706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:27,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:27,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:47:27,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227292065] [2024-11-28 04:47:27,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:27,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:47:27,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:27,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:47:27,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:47:27,284 INFO L87 Difference]: Start difference. First operand 60 states and 88 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 04:47:27,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:27,508 INFO L93 Difference]: Finished difference Result 174 states and 258 transitions. [2024-11-28 04:47:27,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:47:27,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 87 [2024-11-28 04:47:27,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:27,511 INFO L225 Difference]: With dead ends: 174 [2024-11-28 04:47:27,511 INFO L226 Difference]: Without dead ends: 117 [2024-11-28 04:47:27,511 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:47:27,513 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 54 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:27,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 133 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:47:27,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-28 04:47:27,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 114. [2024-11-28 04:47:27,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 87 states have (on average 1.3563218390804597) internal successors, (118), 87 states have internal predecessors, (118), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-28 04:47:27,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 166 transitions. [2024-11-28 04:47:27,540 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 166 transitions. Word has length 87 [2024-11-28 04:47:27,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:27,540 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 166 transitions. [2024-11-28 04:47:27,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 04:47:27,541 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 166 transitions. [2024-11-28 04:47:27,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 04:47:27,546 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:27,546 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:27,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:47:27,547 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:27,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:27,548 INFO L85 PathProgramCache]: Analyzing trace with hash 466056458, now seen corresponding path program 1 times [2024-11-28 04:47:27,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:27,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968835502] [2024-11-28 04:47:27,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:27,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:27,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:28,413 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-28 04:47:28,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:28,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968835502] [2024-11-28 04:47:28,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968835502] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:28,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082876628] [2024-11-28 04:47:28,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:28,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:28,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:28,418 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:28,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:47:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:28,576 INFO L256 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:47:28,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:29,283 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-28 04:47:29,283 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:47:29,757 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-28 04:47:29,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082876628] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:47:29,758 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:47:29,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 22 [2024-11-28 04:47:29,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511392058] [2024-11-28 04:47:29,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:47:29,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 04:47:29,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:29,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 04:47:29,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:47:29,760 INFO L87 Difference]: Start difference. First operand 114 states and 166 transitions. Second operand has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 4 states have call successors, (36), 3 states have call predecessors, (36), 5 states have return successors, (36), 2 states have call predecessors, (36), 4 states have call successors, (36) [2024-11-28 04:47:31,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:31,093 INFO L93 Difference]: Finished difference Result 366 states and 521 transitions. [2024-11-28 04:47:31,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:47:31,094 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 4 states have call successors, (36), 3 states have call predecessors, (36), 5 states have return successors, (36), 2 states have call predecessors, (36), 4 states have call successors, (36) Word has length 88 [2024-11-28 04:47:31,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:31,099 INFO L225 Difference]: With dead ends: 366 [2024-11-28 04:47:31,099 INFO L226 Difference]: Without dead ends: 255 [2024-11-28 04:47:31,103 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=350, Invalid=1210, Unknown=0, NotChecked=0, Total=1560 [2024-11-28 04:47:31,104 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 189 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:31,104 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 398 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:47:31,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-28 04:47:31,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 245. [2024-11-28 04:47:31,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 188 states have (on average 1.2234042553191489) internal successors, (230), 188 states have internal predecessors, (230), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 04:47:31,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 326 transitions. [2024-11-28 04:47:31,172 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 326 transitions. Word has length 88 [2024-11-28 04:47:31,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:31,176 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 326 transitions. [2024-11-28 04:47:31,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 4 states have call successors, (36), 3 states have call predecessors, (36), 5 states have return successors, (36), 2 states have call predecessors, (36), 4 states have call successors, (36) [2024-11-28 04:47:31,176 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 326 transitions. [2024-11-28 04:47:31,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 04:47:31,178 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:31,178 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:31,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:47:31,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:31,381 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:31,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:31,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1703942898, now seen corresponding path program 1 times [2024-11-28 04:47:31,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:31,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921493857] [2024-11-28 04:47:31,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:31,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:35,930 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 04:47:35,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:35,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921493857] [2024-11-28 04:47:35,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921493857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:35,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:35,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:47:35,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83998916] [2024-11-28 04:47:35,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:35,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:47:35,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:35,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:47:35,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:47:35,934 INFO L87 Difference]: Start difference. First operand 245 states and 326 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 04:47:38,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:38,479 INFO L93 Difference]: Finished difference Result 648 states and 845 transitions. [2024-11-28 04:47:38,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:47:38,480 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 89 [2024-11-28 04:47:38,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:38,484 INFO L225 Difference]: With dead ends: 648 [2024-11-28 04:47:38,485 INFO L226 Difference]: Without dead ends: 406 [2024-11-28 04:47:38,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:47:38,490 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 524 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:38,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 472 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:47:38,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2024-11-28 04:47:38,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 257. [2024-11-28 04:47:38,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 200 states have (on average 1.215) internal successors, (243), 200 states have internal predecessors, (243), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 04:47:38,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 339 transitions. [2024-11-28 04:47:38,553 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 339 transitions. Word has length 89 [2024-11-28 04:47:38,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:38,553 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 339 transitions. [2024-11-28 04:47:38,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 04:47:38,554 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 339 transitions. [2024-11-28 04:47:38,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 04:47:38,558 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:38,559 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:38,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:47:38,559 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:38,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:38,560 INFO L85 PathProgramCache]: Analyzing trace with hash 682874544, now seen corresponding path program 1 times [2024-11-28 04:47:38,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:38,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741854308] [2024-11-28 04:47:38,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:38,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:42,038 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 04:47:42,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:42,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741854308] [2024-11-28 04:47:42,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741854308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:42,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:42,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 04:47:42,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705194704] [2024-11-28 04:47:42,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:42,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:47:42,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:42,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:47:42,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:47:42,041 INFO L87 Difference]: Start difference. First operand 257 states and 339 transitions. Second operand has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 04:47:45,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:45,520 INFO L93 Difference]: Finished difference Result 474 states and 604 transitions. [2024-11-28 04:47:45,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:47:45,521 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 89 [2024-11-28 04:47:45,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:45,523 INFO L225 Difference]: With dead ends: 474 [2024-11-28 04:47:45,524 INFO L226 Difference]: Without dead ends: 411 [2024-11-28 04:47:45,525 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:47:45,525 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 258 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 1232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:45,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 636 Invalid, 1232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1193 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 04:47:45,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-11-28 04:47:45,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 257. [2024-11-28 04:47:45,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 200 states have (on average 1.215) internal successors, (243), 200 states have internal predecessors, (243), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 04:47:45,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 339 transitions. [2024-11-28 04:47:45,579 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 339 transitions. Word has length 89 [2024-11-28 04:47:45,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:45,580 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 339 transitions. [2024-11-28 04:47:45,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 04:47:45,580 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 339 transitions. [2024-11-28 04:47:45,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 04:47:45,582 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:45,582 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:45,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:47:45,582 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:45,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:45,583 INFO L85 PathProgramCache]: Analyzing trace with hash -68655379, now seen corresponding path program 1 times [2024-11-28 04:47:45,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:45,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685941670] [2024-11-28 04:47:45,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:45,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:45,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:45,718 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 04:47:45,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:45,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685941670] [2024-11-28 04:47:45,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685941670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:45,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:45,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:47:45,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395520553] [2024-11-28 04:47:45,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:45,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:47:45,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:45,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:47:45,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:47:45,719 INFO L87 Difference]: Start difference. First operand 257 states and 339 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 04:47:45,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:45,765 INFO L93 Difference]: Finished difference Result 516 states and 685 transitions. [2024-11-28 04:47:45,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:47:45,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 90 [2024-11-28 04:47:45,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:45,768 INFO L225 Difference]: With dead ends: 516 [2024-11-28 04:47:45,769 INFO L226 Difference]: Without dead ends: 262 [2024-11-28 04:47:45,770 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:47:45,771 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:45,771 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:47:45,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-11-28 04:47:45,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 260. [2024-11-28 04:47:45,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 203 states have (on average 1.2118226600985222) internal successors, (246), 203 states have internal predecessors, (246), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 04:47:45,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 342 transitions. [2024-11-28 04:47:45,809 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 342 transitions. Word has length 90 [2024-11-28 04:47:45,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:45,809 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 342 transitions. [2024-11-28 04:47:45,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 04:47:45,809 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 342 transitions. [2024-11-28 04:47:45,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 04:47:45,811 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:45,811 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:45,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:47:45,811 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:45,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:45,813 INFO L85 PathProgramCache]: Analyzing trace with hash 272433549, now seen corresponding path program 1 times [2024-11-28 04:47:45,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:45,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296163304] [2024-11-28 04:47:45,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:45,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:45,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:46,407 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 04:47:46,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:46,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296163304] [2024-11-28 04:47:46,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296163304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:46,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:46,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:47:46,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600693103] [2024-11-28 04:47:46,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:46,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:47:46,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:46,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:47:46,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:47:46,410 INFO L87 Difference]: Start difference. First operand 260 states and 342 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 04:47:46,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:46,613 INFO L93 Difference]: Finished difference Result 322 states and 414 transitions. [2024-11-28 04:47:46,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:47:46,614 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 91 [2024-11-28 04:47:46,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:46,619 INFO L225 Difference]: With dead ends: 322 [2024-11-28 04:47:46,619 INFO L226 Difference]: Without dead ends: 320 [2024-11-28 04:47:46,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:47:46,622 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 24 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:46,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 303 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:47:46,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-28 04:47:46,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 306. [2024-11-28 04:47:46,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 249 states have (on average 1.2048192771084338) internal successors, (300), 249 states have internal predecessors, (300), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 04:47:46,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 396 transitions. [2024-11-28 04:47:46,665 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 396 transitions. Word has length 91 [2024-11-28 04:47:46,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:46,666 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 396 transitions. [2024-11-28 04:47:46,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 04:47:46,667 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 396 transitions. [2024-11-28 04:47:46,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 04:47:46,668 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:46,668 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:46,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:47:46,668 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:46,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:46,669 INFO L85 PathProgramCache]: Analyzing trace with hash 59794543, now seen corresponding path program 1 times [2024-11-28 04:47:46,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:46,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742896583] [2024-11-28 04:47:46,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:46,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:46,722 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 04:47:46,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:46,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742896583] [2024-11-28 04:47:46,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742896583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:46,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:46,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:47:46,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895864117] [2024-11-28 04:47:46,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:46,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:47:46,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:46,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:47:46,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:47:46,724 INFO L87 Difference]: Start difference. First operand 306 states and 396 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 04:47:46,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:46,825 INFO L93 Difference]: Finished difference Result 519 states and 678 transitions. [2024-11-28 04:47:46,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:47:46,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 91 [2024-11-28 04:47:46,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:46,828 INFO L225 Difference]: With dead ends: 519 [2024-11-28 04:47:46,828 INFO L226 Difference]: Without dead ends: 355 [2024-11-28 04:47:46,829 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:47:46,829 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 67 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:46,829 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 117 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:47:46,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-28 04:47:46,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 207. [2024-11-28 04:47:46,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 164 states have (on average 1.1890243902439024) internal successors, (195), 164 states have internal predecessors, (195), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:47:46,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 267 transitions. [2024-11-28 04:47:46,858 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 267 transitions. Word has length 91 [2024-11-28 04:47:46,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:46,858 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 267 transitions. [2024-11-28 04:47:46,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 04:47:46,858 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 267 transitions. [2024-11-28 04:47:46,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 04:47:46,861 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:46,862 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:46,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:47:46,862 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:46,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:46,863 INFO L85 PathProgramCache]: Analyzing trace with hash 200214122, now seen corresponding path program 1 times [2024-11-28 04:47:46,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:46,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117836539] [2024-11-28 04:47:46,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:46,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:46,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:46,912 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 04:47:46,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:46,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117836539] [2024-11-28 04:47:46,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117836539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:46,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:46,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:47:46,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654869343] [2024-11-28 04:47:46,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:46,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:47:46,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:46,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:47:46,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:47:46,915 INFO L87 Difference]: Start difference. First operand 207 states and 267 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 04:47:47,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:47,008 INFO L93 Difference]: Finished difference Result 348 states and 448 transitions. [2024-11-28 04:47:47,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:47:47,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 92 [2024-11-28 04:47:47,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:47,010 INFO L225 Difference]: With dead ends: 348 [2024-11-28 04:47:47,011 INFO L226 Difference]: Without dead ends: 214 [2024-11-28 04:47:47,011 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:47:47,012 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 53 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:47,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 168 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:47:47,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-28 04:47:47,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 211. [2024-11-28 04:47:47,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 168 states have (on average 1.1666666666666667) internal successors, (196), 168 states have internal predecessors, (196), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:47:47,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 268 transitions. [2024-11-28 04:47:47,036 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 268 transitions. Word has length 92 [2024-11-28 04:47:47,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:47,037 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 268 transitions. [2024-11-28 04:47:47,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 04:47:47,037 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 268 transitions. [2024-11-28 04:47:47,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-28 04:47:47,038 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:47,039 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:47,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:47:47,039 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:47,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:47,039 INFO L85 PathProgramCache]: Analyzing trace with hash -703972000, now seen corresponding path program 1 times [2024-11-28 04:47:47,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:47,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526341053] [2024-11-28 04:47:47,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:47,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:47,596 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 04:47:47,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:47,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526341053] [2024-11-28 04:47:47,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526341053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:47,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:47,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:47:47,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397941035] [2024-11-28 04:47:47,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:47,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:47:47,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:47,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:47:47,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:47:47,598 INFO L87 Difference]: Start difference. First operand 211 states and 268 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 04:47:47,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:47,946 INFO L93 Difference]: Finished difference Result 376 states and 470 transitions. [2024-11-28 04:47:47,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:47:47,947 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 93 [2024-11-28 04:47:47,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:47,949 INFO L225 Difference]: With dead ends: 376 [2024-11-28 04:47:47,949 INFO L226 Difference]: Without dead ends: 233 [2024-11-28 04:47:47,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:47:47,950 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 86 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:47,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 298 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:47:47,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-28 04:47:47,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 207. [2024-11-28 04:47:47,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 164 states have (on average 1.146341463414634) internal successors, (188), 164 states have internal predecessors, (188), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:47:47,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 260 transitions. [2024-11-28 04:47:47,988 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 260 transitions. Word has length 93 [2024-11-28 04:47:47,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:47,988 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 260 transitions. [2024-11-28 04:47:47,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 04:47:47,989 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 260 transitions. [2024-11-28 04:47:47,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 04:47:47,990 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:47,991 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:47,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:47:47,991 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:47,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:47,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1404582365, now seen corresponding path program 1 times [2024-11-28 04:47:47,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:47,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014323536] [2024-11-28 04:47:47,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:47,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:48,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:47:48,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [315224023] [2024-11-28 04:47:48,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:48,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:48,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:48,063 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:48,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:47:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:47:48,151 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:47:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:47:48,265 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:47:48,265 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:47:48,266 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 04:47:48,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 04:47:48,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 04:47:48,472 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:48,552 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:47:48,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:47:48 BoogieIcfgContainer [2024-11-28 04:47:48,557 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:47:48,557 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:47:48,558 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:47:48,559 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:47:48,559 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:47:25" (3/4) ... [2024-11-28 04:47:48,562 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 04:47:48,563 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:47:48,564 INFO L158 Benchmark]: Toolchain (without parser) took 23788.30ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 93.5MB in the beginning and 127.7MB in the end (delta: -34.2MB). Peak memory consumption was 199.8MB. Max. memory is 16.1GB. [2024-11-28 04:47:48,565 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 167.8MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:47:48,565 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.46ms. Allocated memory is still 117.4MB. Free memory was 93.5MB in the beginning and 80.6MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:47:48,566 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.74ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 77.7MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:47:48,566 INFO L158 Benchmark]: Boogie Preprocessor took 40.79ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 74.8MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:47:48,567 INFO L158 Benchmark]: RCFGBuilder took 613.19ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 53.4MB in the end (delta: 21.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:47:48,567 INFO L158 Benchmark]: TraceAbstraction took 22757.72ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 53.1MB in the beginning and 127.8MB in the end (delta: -74.7MB). Peak memory consumption was 166.2MB. Max. memory is 16.1GB. [2024-11-28 04:47:48,569 INFO L158 Benchmark]: Witness Printer took 5.88ms. Allocated memory is still 352.3MB. Free memory was 127.8MB in the beginning and 127.7MB in the end (delta: 72.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:47:48,570 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 167.8MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.46ms. Allocated memory is still 117.4MB. Free memory was 93.5MB in the beginning and 80.6MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.74ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 77.7MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.79ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 74.8MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 613.19ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 53.4MB in the end (delta: 21.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 22757.72ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 53.1MB in the beginning and 127.8MB in the end (delta: -74.7MB). Peak memory consumption was 166.2MB. Max. memory is 16.1GB. * Witness Printer took 5.88ms. Allocated memory is still 352.3MB. Free memory was 127.8MB in the beginning and 127.7MB in the end (delta: 72.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 73, overapproximation of someBinaryFLOATComparisonOperation at line 71, overapproximation of someBinaryFLOATComparisonOperation at line 89, overapproximation of bitwiseOr at line 54, overapproximation of bitwiseOr at line 89, overapproximation of bitwiseAnd at line 46. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 99.25; [L23] signed short int var_1_7 = 18477; [L24] signed short int var_1_8 = 5; [L25] float var_1_9 = 5.8; [L26] float var_1_10 = 0.5; [L27] unsigned char var_1_11 = 16; [L28] unsigned char var_1_12 = 50; [L29] unsigned char var_1_13 = 1; [L30] unsigned long int var_1_14 = 256; [L31] unsigned char var_1_15 = 0; [L32] unsigned char last_1_var_1_11 = 16; [L33] unsigned long int last_1_var_1_14 = 256; VAL [isInitial=0, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=18477, var_1_8=5, var_1_9=29/5] [L93] isInitial = 1 [L94] FCALL initially() [L96] CALL updateLastVariables() [L85] last_1_var_1_11 = var_1_11 [L86] last_1_var_1_14 = var_1_14 VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=18477, var_1_8=5, var_1_9=29/5] [L96] RET updateLastVariables() [L97] CALL updateVariables() [L64] var_1_7 = __VERIFIER_nondet_short() [L65] CALL assume_abort_if_not(var_1_7 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=5, var_1_9=29/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=5, var_1_9=29/5] [L65] RET assume_abort_if_not(var_1_7 >= 16383) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=5, var_1_9=29/5] [L66] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=5, var_1_9=29/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=5, var_1_9=29/5] [L66] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=5, var_1_9=29/5] [L67] var_1_8 = __VERIFIER_nondet_short() [L68] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256, var_1_9=29/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256, var_1_9=29/5] [L68] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256, var_1_9=29/5] [L69] CALL assume_abort_if_not(var_1_8 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256, var_1_9=29/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256, var_1_9=29/5] [L69] RET assume_abort_if_not(var_1_8 <= 16383) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256, var_1_9=29/5] [L70] var_1_9 = __VERIFIER_nondet_float() [L71] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L71] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L72] var_1_10 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L73] RET assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L74] var_1_12 = __VERIFIER_nondet_uchar() [L75] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L75] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L76] CALL assume_abort_if_not(var_1_12 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L76] RET assume_abort_if_not(var_1_12 <= 254) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L77] var_1_13 = __VERIFIER_nondet_uchar() [L78] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L78] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L79] CALL assume_abort_if_not(var_1_13 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L79] RET assume_abort_if_not(var_1_13 <= 254) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L80] var_1_15 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L81] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L82] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L82] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L97] RET updateVariables() [L98] CALL step() [L37] signed short int stepLocal_3 = var_1_8; [L38] unsigned long int stepLocal_2 = last_1_var_1_14; VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_2=256, stepLocal_3=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L39] COND FALSE !(last_1_var_1_14 > stepLocal_3) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_2=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L46] EXPR var_1_11 & var_1_7 VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_2=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L46] COND FALSE !((var_1_11 & var_1_7) > ((var_1_12 * last_1_var_1_14) * (var_1_11 + var_1_11))) [L51] var_1_14 = var_1_7 VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_2=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=32767, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L53] unsigned char stepLocal_1 = var_1_11; VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_1=16, stepLocal_2=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=32767, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L54] EXPR var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14))) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_1=16, stepLocal_2=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=32767, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L54] unsigned long int stepLocal_0 = var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14))); [L55] COND FALSE !(stepLocal_0 != var_1_11) [L60] var_1_1 = 10.5f VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_1=16, stepLocal_2=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=32767, var_1_15=0, var_1_1=21/2, var_1_7=32767, var_1_8=256] [L98] RET step() [L99] CALL, EXPR property() [L89] EXPR var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14))) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=32767, var_1_15=0, var_1_1=21/2, var_1_7=32767, var_1_8=256] [L89] EXPR ((((var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14)))) != var_1_11) ? ((var_1_11 == (var_1_11 - (var_1_7 - var_1_11))) ? (var_1_1 == ((float) ((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))))) : 1) : (var_1_1 == ((float) 10.5f))) && ((last_1_var_1_14 > var_1_8) ? ((((last_1_var_1_11 - var_1_8) + var_1_7) > last_1_var_1_14) ? (var_1_11 == ((unsigned char) ((((var_1_12) < (var_1_13)) ? (var_1_12) : (var_1_13))))) : (var_1_11 == ((unsigned char) var_1_12))) : 1)) && (((var_1_11 & var_1_7) > ((var_1_12 * last_1_var_1_14) * (var_1_11 + var_1_11))) ? ((var_1_15 && (var_1_9 > var_1_10)) ? (var_1_14 == ((unsigned long int) var_1_7)) : 1) : (var_1_14 == ((unsigned long int) var_1_7))) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=32767, var_1_15=0, var_1_1=21/2, var_1_7=32767, var_1_8=256] [L89-L90] return ((((var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14)))) != var_1_11) ? ((var_1_11 == (var_1_11 - (var_1_7 - var_1_11))) ? (var_1_1 == ((float) ((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))))) : 1) : (var_1_1 == ((float) 10.5f))) && ((last_1_var_1_14 > var_1_8) ? ((((last_1_var_1_11 - var_1_8) + var_1_7) > last_1_var_1_14) ? (var_1_11 == ((unsigned char) ((((var_1_12) < (var_1_13)) ? (var_1_12) : (var_1_13))))) : (var_1_11 == ((unsigned char) var_1_12))) : 1)) && (((var_1_11 & var_1_7) > ((var_1_12 * last_1_var_1_14) * (var_1_11 + var_1_11))) ? ((var_1_15 && (var_1_9 > var_1_10)) ? (var_1_14 == ((unsigned long int) var_1_7)) : 1) : (var_1_14 == ((unsigned long int) var_1_7))) ; [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=32767, var_1_15=0, var_1_1=21/2, var_1_7=32767, var_1_8=256] [L19] reach_error() VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=32767, var_1_15=0, var_1_1=21/2, var_1_7=32767, var_1_8=256] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.6s, OverallIterations: 11, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1255 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1255 mSDsluCounter, 2768 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1908 mSDsCounter, 176 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3126 IncrementalHoareTripleChecker+Invalid, 3302 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 176 mSolverCounterUnsat, 860 mSDtfsCounter, 3126 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 381 GetRequests, 282 SyntacticMatches, 1 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=306occurred in iteration=7, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 509 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 1262 NumberOfCodeBlocks, 1262 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1147 ConstructedInterpolants, 0 QuantifiedInterpolants, 5546 SizeOfPredicates, 4 NumberOfNonLiveVariables, 431 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 13 InterpolantComputations, 9 PerfectInterpolantSequences, 3311/3432 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 04:47:48,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/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_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/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_59f707e7-3820-48f2-89c8-94200fd8ebff/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 96484bfe2125966f3f858294999ba06e5bcb55d577c4089dc42afb40d58fe9d6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:47:51,078 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:47:51,223 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 04:47:51,235 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:47:51,235 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:47:51,271 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:47:51,272 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:47:51,272 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:47:51,272 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:47:51,272 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:47:51,272 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:47:51,273 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:47:51,273 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:47:51,273 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:47:51,273 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:47:51,273 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:47:51,274 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:47:51,274 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:47:51,274 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:47:51,274 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:47:51,274 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:47:51,274 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:47:51,274 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:47:51,275 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:47:51,275 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 04:47:51,275 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 04:47:51,275 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:47:51,275 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:47:51,275 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:47:51,275 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:47:51,276 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:47:51,276 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:47:51,276 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:47:51,276 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:47:51,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:47:51,276 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:47:51,277 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:47:51,277 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:47:51,277 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:47:51,277 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:47:51,277 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:47:51,277 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:47:51,277 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:47:51,278 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:47:51,278 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 04:47:51,278 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 04:47:51,278 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:47:51,278 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:47:51,278 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:47:51,279 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:47:51,279 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_59f707e7-3820-48f2-89c8-94200fd8ebff/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 -> 96484bfe2125966f3f858294999ba06e5bcb55d577c4089dc42afb40d58fe9d6 [2024-11-28 04:47:51,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:47:51,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:47:51,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:47:51,593 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:47:51,594 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:47:51,597 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-18.i [2024-11-28 04:47:54,576 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/data/2d23c70d2/53488eaa5eba463a9e846793dfee7155/FLAG4d8edcd4c [2024-11-28 04:47:54,881 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:47:54,882 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-18.i [2024-11-28 04:47:54,897 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/data/2d23c70d2/53488eaa5eba463a9e846793dfee7155/FLAG4d8edcd4c [2024-11-28 04:47:54,920 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/data/2d23c70d2/53488eaa5eba463a9e846793dfee7155 [2024-11-28 04:47:54,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:47:54,925 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:47:54,926 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:47:54,927 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:47:54,932 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:47:54,933 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:47:54" (1/1) ... [2024-11-28 04:47:54,936 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ef6cf37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:54, skipping insertion in model container [2024-11-28 04:47:54,936 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:47:54" (1/1) ... [2024-11-28 04:47:54,959 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:47:55,137 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_59f707e7-3820-48f2-89c8-94200fd8ebff/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-18.i[913,926] [2024-11-28 04:47:55,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:47:55,206 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:47:55,216 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_59f707e7-3820-48f2-89c8-94200fd8ebff/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-18.i[913,926] [2024-11-28 04:47:55,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:47:55,256 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:47:55,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55 WrapperNode [2024-11-28 04:47:55,257 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:47:55,258 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:47:55,258 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:47:55,258 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:47:55,265 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55" (1/1) ... [2024-11-28 04:47:55,274 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55" (1/1) ... [2024-11-28 04:47:55,294 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 96 [2024-11-28 04:47:55,295 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:47:55,296 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:47:55,296 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:47:55,296 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:47:55,305 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55" (1/1) ... [2024-11-28 04:47:55,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55" (1/1) ... [2024-11-28 04:47:55,308 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55" (1/1) ... [2024-11-28 04:47:55,320 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:47:55,321 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55" (1/1) ... [2024-11-28 04:47:55,321 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55" (1/1) ... [2024-11-28 04:47:55,329 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55" (1/1) ... [2024-11-28 04:47:55,330 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55" (1/1) ... [2024-11-28 04:47:55,333 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55" (1/1) ... [2024-11-28 04:47:55,335 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55" (1/1) ... [2024-11-28 04:47:55,336 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55" (1/1) ... [2024-11-28 04:47:55,339 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:47:55,339 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:47:55,340 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:47:55,340 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:47:55,341 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55" (1/1) ... [2024-11-28 04:47:55,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:47:55,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:55,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:47:55,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:47:55,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:47:55,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 04:47:55,409 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:47:55,410 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:47:55,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:47:55,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:47:55,503 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:47:55,505 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:47:55,947 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-28 04:47:55,950 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:47:55,969 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:47:55,970 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:47:55,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:47:55 BoogieIcfgContainer [2024-11-28 04:47:55,971 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:47:55,975 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:47:55,975 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:47:55,986 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:47:55,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:47:54" (1/3) ... [2024-11-28 04:47:55,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@623beb71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:47:55, skipping insertion in model container [2024-11-28 04:47:55,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:55" (2/3) ... [2024-11-28 04:47:55,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@623beb71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:47:55, skipping insertion in model container [2024-11-28 04:47:55,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:47:55" (3/3) ... [2024-11-28 04:47:55,990 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-18.i [2024-11-28 04:47:56,012 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:47:56,015 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-18.i that has 2 procedures, 45 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:47:56,095 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:47:56,115 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;@5d92f624, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:47:56,115 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:47:56,121 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:47:56,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-28 04:47:56,133 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:56,134 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:56,134 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:56,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:56,142 INFO L85 PathProgramCache]: Analyzing trace with hash -310559141, now seen corresponding path program 1 times [2024-11-28 04:47:56,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:47:56,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [141343848] [2024-11-28 04:47:56,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:56,159 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:47:56,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:47:56,164 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:47:56,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-28 04:47:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:56,369 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:47:56,377 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:56,433 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-28 04:47:56,434 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:47:56,438 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:47:56,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [141343848] [2024-11-28 04:47:56,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [141343848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:56,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:56,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:47:56,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654383015] [2024-11-28 04:47:56,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:56,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:47:56,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:47:56,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:47:56,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:47:56,471 INFO L87 Difference]: Start difference. First operand has 45 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 04:47:56,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:56,503 INFO L93 Difference]: Finished difference Result 83 states and 136 transitions. [2024-11-28 04:47:56,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:47:56,505 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 80 [2024-11-28 04:47:56,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:56,511 INFO L225 Difference]: With dead ends: 83 [2024-11-28 04:47:56,511 INFO L226 Difference]: Without dead ends: 41 [2024-11-28 04:47:56,515 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:47:56,518 INFO L435 NwaCegarLoop]: 58 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, 58 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:56,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:47:56,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-28 04:47:56,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-11-28 04:47:56,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:47:56,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2024-11-28 04:47:56,553 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 80 [2024-11-28 04:47:56,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:56,553 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2024-11-28 04:47:56,554 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 04:47:56,554 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2024-11-28 04:47:56,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-28 04:47:56,557 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:56,557 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:56,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-28 04:47:56,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:47:56,758 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:56,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:56,758 INFO L85 PathProgramCache]: Analyzing trace with hash 392918431, now seen corresponding path program 1 times [2024-11-28 04:47:56,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:47:56,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863834685] [2024-11-28 04:47:56,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:56,759 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:47:56,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:47:56,762 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:47:56,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-28 04:47:56,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:56,987 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:47:56,994 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:58,119 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-28 04:47:58,120 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:47:58,760 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-28 04:47:58,760 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:47:58,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863834685] [2024-11-28 04:47:58,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863834685] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:47:58,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:47:58,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-11-28 04:47:58,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970309956] [2024-11-28 04:47:58,762 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:47:58,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:47:58,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:47:58,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:47:58,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:47:58,766 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 4 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-28 04:48:01,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:01,346 INFO L93 Difference]: Finished difference Result 213 states and 294 transitions. [2024-11-28 04:48:01,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 04:48:01,348 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 4 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) Word has length 80 [2024-11-28 04:48:01,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:48:01,351 INFO L225 Difference]: With dead ends: 213 [2024-11-28 04:48:01,351 INFO L226 Difference]: Without dead ends: 175 [2024-11-28 04:48:01,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=262, Invalid=494, Unknown=0, NotChecked=0, Total=756 [2024-11-28 04:48:01,354 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 149 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:48:01,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 280 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 04:48:01,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-28 04:48:01,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 88. [2024-11-28 04:48:01,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 59 states have (on average 1.2203389830508475) internal successors, (72), 59 states have internal predecessors, (72), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-28 04:48:01,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 120 transitions. [2024-11-28 04:48:01,420 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 120 transitions. Word has length 80 [2024-11-28 04:48:01,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:48:01,421 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 120 transitions. [2024-11-28 04:48:01,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 4 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-28 04:48:01,423 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 120 transitions. [2024-11-28 04:48:01,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-28 04:48:01,428 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:48:01,428 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:48:01,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/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 [2024-11-28 04:48:01,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:48:01,629 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:48:01,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:01,629 INFO L85 PathProgramCache]: Analyzing trace with hash -938143787, now seen corresponding path program 1 times [2024-11-28 04:48:01,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:48:01,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1162924201] [2024-11-28 04:48:01,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:01,630 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:48:01,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:48:01,634 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:48:01,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f707e7-3820-48f2-89c8-94200fd8ebff/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-28 04:48:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:01,800 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:48:01,807 INFO L279 TraceCheckSpWp]: Computing forward predicates...