./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-33.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_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/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_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-33.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/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_767666f8-1c28-4f0d-b251-319261e820fc/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 207d54556929a93aa39d246b1f9a7e7f3ed779038a85bd758d97838d975fbe31 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:10:21,930 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:10:22,001 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:10:22,007 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:10:22,007 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:10:22,036 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:10:22,037 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:10:22,037 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:10:22,038 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:10:22,038 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:10:22,038 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:10:22,038 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:10:22,039 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:10:22,039 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:10:22,039 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:10:22,039 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:10:22,040 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:10:22,040 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:10:22,040 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:10:22,040 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:10:22,040 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:10:22,041 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:10:22,041 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:10:22,041 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:10:22,041 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:10:22,041 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:10:22,041 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:10:22,042 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:10:22,042 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:10:22,042 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:10:22,042 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:10:22,042 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:10:22,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:10:22,043 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:10:22,043 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:10:22,043 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:10:22,043 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:10:22,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:10:22,044 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:10:22,044 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:10:22,044 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:10:22,044 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:10:22,044 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:10:22,044 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:10:22,045 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:10:22,045 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:10:22,045 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:10:22,045 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:10:22,045 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_767666f8-1c28-4f0d-b251-319261e820fc/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 -> 207d54556929a93aa39d246b1f9a7e7f3ed779038a85bd758d97838d975fbe31 [2024-11-28 03:10:22,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:10:22,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:10:22,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:10:22,444 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:10:22,445 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:10:22,446 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-33.i [2024-11-28 03:10:25,652 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/data/2565f7033/212bf699a16746f9b81dc5758d4e1dce/FLAG4677d656b [2024-11-28 03:10:25,973 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:10:25,974 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-33.i [2024-11-28 03:10:25,996 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/data/2565f7033/212bf699a16746f9b81dc5758d4e1dce/FLAG4677d656b [2024-11-28 03:10:26,048 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/data/2565f7033/212bf699a16746f9b81dc5758d4e1dce [2024-11-28 03:10:26,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:10:26,053 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:10:26,054 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:10:26,055 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:10:26,060 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:10:26,061 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:10:26" (1/1) ... [2024-11-28 03:10:26,063 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f226f49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:26, skipping insertion in model container [2024-11-28 03:10:26,063 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:10:26" (1/1) ... [2024-11-28 03:10:26,084 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:10:26,290 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_767666f8-1c28-4f0d-b251-319261e820fc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-33.i[913,926] [2024-11-28 03:10:26,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:10:26,382 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:10:26,396 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_767666f8-1c28-4f0d-b251-319261e820fc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-33.i[913,926] [2024-11-28 03:10:26,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:10:26,448 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:10:26,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:26 WrapperNode [2024-11-28 03:10:26,449 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:10:26,450 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:10:26,451 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:10:26,451 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:10:26,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:26" (1/1) ... [2024-11-28 03:10:26,478 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:26" (1/1) ... [2024-11-28 03:10:26,540 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 153 [2024-11-28 03:10:26,541 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:10:26,541 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:10:26,541 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:10:26,542 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:10:26,551 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:26" (1/1) ... [2024-11-28 03:10:26,551 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:26" (1/1) ... [2024-11-28 03:10:26,554 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:26" (1/1) ... [2024-11-28 03:10:26,568 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:10:26,569 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:26" (1/1) ... [2024-11-28 03:10:26,569 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:26" (1/1) ... [2024-11-28 03:10:26,579 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:26" (1/1) ... [2024-11-28 03:10:26,584 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:26" (1/1) ... [2024-11-28 03:10:26,592 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:26" (1/1) ... [2024-11-28 03:10:26,596 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:26" (1/1) ... [2024-11-28 03:10:26,597 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:26" (1/1) ... [2024-11-28 03:10:26,605 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:10:26,609 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:10:26,609 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:10:26,609 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:10:26,611 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:26" (1/1) ... [2024-11-28 03:10:26,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:10:26,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:10:26,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:10:26,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:10:26,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:10:26,690 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:10:26,690 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:10:26,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:10:26,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:10:26,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:10:26,802 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:10:26,805 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:10:27,307 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-28 03:10:27,308 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:10:27,319 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:10:27,321 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:10:27,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:27 BoogieIcfgContainer [2024-11-28 03:10:27,322 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:10:27,325 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:10:27,325 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:10:27,332 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:10:27,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:10:26" (1/3) ... [2024-11-28 03:10:27,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb3dc3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:10:27, skipping insertion in model container [2024-11-28 03:10:27,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:26" (2/3) ... [2024-11-28 03:10:27,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb3dc3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:10:27, skipping insertion in model container [2024-11-28 03:10:27,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:27" (3/3) ... [2024-11-28 03:10:27,335 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-33.i [2024-11-28 03:10:27,352 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:10:27,354 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-33.i that has 2 procedures, 66 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:10:27,439 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:10:27,451 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;@310e9e79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:10:27,451 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:10:27,456 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 54 states have (on average 1.462962962962963) internal successors, (79), 55 states have internal predecessors, (79), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 03:10:27,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 03:10:27,465 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:27,466 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:27,467 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:27,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:27,473 INFO L85 PathProgramCache]: Analyzing trace with hash 123038288, now seen corresponding path program 1 times [2024-11-28 03:10:27,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:27,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680583625] [2024-11-28 03:10:27,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:27,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:27,755 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-28 03:10:27,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:27,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680583625] [2024-11-28 03:10:27,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680583625] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:10:27,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082913777] [2024-11-28 03:10:27,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:27,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:10:27,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:10:27,762 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:10:27,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:10:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:27,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:10:27,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:10:27,976 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-28 03:10:27,976 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:10:27,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082913777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:27,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:10:27,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:10:27,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434550902] [2024-11-28 03:10:27,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:27,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:10:27,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:28,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:10:28,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:10:28,009 INFO L87 Difference]: Start difference. First operand has 66 states, 54 states have (on average 1.462962962962963) internal successors, (79), 55 states have internal predecessors, (79), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 03:10:28,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:28,041 INFO L93 Difference]: Finished difference Result 125 states and 197 transitions. [2024-11-28 03:10:28,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:10:28,043 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 74 [2024-11-28 03:10:28,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:28,050 INFO L225 Difference]: With dead ends: 125 [2024-11-28 03:10:28,050 INFO L226 Difference]: Without dead ends: 62 [2024-11-28 03:10:28,054 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:10:28,057 INFO L435 NwaCegarLoop]: 90 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, 90 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:28,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:10:28,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-28 03:10:28,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-11-28 03:10:28,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 51 states have (on average 1.411764705882353) internal successors, (72), 51 states have internal predecessors, (72), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 03:10:28,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 90 transitions. [2024-11-28 03:10:28,100 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 90 transitions. Word has length 74 [2024-11-28 03:10:28,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:28,100 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 90 transitions. [2024-11-28 03:10:28,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 03:10:28,101 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 90 transitions. [2024-11-28 03:10:28,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 03:10:28,105 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:28,106 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:28,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:10:28,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:10:28,307 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:28,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:28,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1283939178, now seen corresponding path program 1 times [2024-11-28 03:10:28,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:28,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116302008] [2024-11-28 03:10:28,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:28,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:28,632 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 03:10:28,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:28,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116302008] [2024-11-28 03:10:28,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116302008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:28,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:28,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:10:28,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753330052] [2024-11-28 03:10:28,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:28,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:10:28,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:28,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:10:28,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:10:28,635 INFO L87 Difference]: Start difference. First operand 62 states and 90 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:28,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:28,663 INFO L93 Difference]: Finished difference Result 122 states and 179 transitions. [2024-11-28 03:10:28,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:10:28,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 74 [2024-11-28 03:10:28,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:28,666 INFO L225 Difference]: With dead ends: 122 [2024-11-28 03:10:28,666 INFO L226 Difference]: Without dead ends: 63 [2024-11-28 03:10:28,666 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:10:28,667 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:28,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 172 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:10:28,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-28 03:10:28,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-11-28 03:10:28,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 52 states have internal predecessors, (73), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 03:10:28,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 91 transitions. [2024-11-28 03:10:28,679 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 91 transitions. Word has length 74 [2024-11-28 03:10:28,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:28,682 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 91 transitions. [2024-11-28 03:10:28,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:28,683 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 91 transitions. [2024-11-28 03:10:28,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 03:10:28,688 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:28,688 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:28,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:10:28,688 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:28,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:28,689 INFO L85 PathProgramCache]: Analyzing trace with hash -603880808, now seen corresponding path program 1 times [2024-11-28 03:10:28,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:28,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745734472] [2024-11-28 03:10:28,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:28,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:28,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:29,027 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 03:10:29,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:29,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745734472] [2024-11-28 03:10:29,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745734472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:29,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:29,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:10:29,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230686748] [2024-11-28 03:10:29,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:29,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:10:29,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:29,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:10:29,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:10:29,034 INFO L87 Difference]: Start difference. First operand 63 states and 91 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:29,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:29,338 INFO L93 Difference]: Finished difference Result 148 states and 214 transitions. [2024-11-28 03:10:29,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:10:29,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 74 [2024-11-28 03:10:29,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:29,342 INFO L225 Difference]: With dead ends: 148 [2024-11-28 03:10:29,342 INFO L226 Difference]: Without dead ends: 88 [2024-11-28 03:10:29,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:10:29,344 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 85 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:29,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 275 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:10:29,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-28 03:10:29,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 65. [2024-11-28 03:10:29,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 54 states have internal predecessors, (75), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 03:10:29,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 93 transitions. [2024-11-28 03:10:29,364 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 93 transitions. Word has length 74 [2024-11-28 03:10:29,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:29,364 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 93 transitions. [2024-11-28 03:10:29,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:29,366 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 93 transitions. [2024-11-28 03:10:29,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 03:10:29,369 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:29,369 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:29,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:10:29,370 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:29,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:29,370 INFO L85 PathProgramCache]: Analyzing trace with hash -345715370, now seen corresponding path program 1 times [2024-11-28 03:10:29,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:29,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879372739] [2024-11-28 03:10:29,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:29,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:29,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:33,210 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 03:10:33,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:33,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879372739] [2024-11-28 03:10:33,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879372739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:33,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:33,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:10:33,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190911654] [2024-11-28 03:10:33,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:33,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:10:33,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:33,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:10:33,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:10:33,215 INFO L87 Difference]: Start difference. First operand 65 states and 93 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:34,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:34,415 INFO L93 Difference]: Finished difference Result 268 states and 388 transitions. [2024-11-28 03:10:34,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:10:34,416 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 74 [2024-11-28 03:10:34,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:34,418 INFO L225 Difference]: With dead ends: 268 [2024-11-28 03:10:34,418 INFO L226 Difference]: Without dead ends: 206 [2024-11-28 03:10:34,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:10:34,420 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 288 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:34,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 326 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:10:34,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-11-28 03:10:34,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 89. [2024-11-28 03:10:34,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 78 states have (on average 1.4230769230769231) internal successors, (111), 78 states have internal predecessors, (111), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 03:10:34,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 129 transitions. [2024-11-28 03:10:34,433 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 129 transitions. Word has length 74 [2024-11-28 03:10:34,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:34,433 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 129 transitions. [2024-11-28 03:10:34,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:34,434 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 129 transitions. [2024-11-28 03:10:34,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 03:10:34,439 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:34,439 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:34,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:10:34,440 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:34,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:34,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1955107220, now seen corresponding path program 1 times [2024-11-28 03:10:34,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:34,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304253175] [2024-11-28 03:10:34,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:34,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:34,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:35,219 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 03:10:35,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:35,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304253175] [2024-11-28 03:10:35,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304253175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:35,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:35,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:10:35,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721489303] [2024-11-28 03:10:35,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:35,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:10:35,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:35,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:10:35,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:10:35,225 INFO L87 Difference]: Start difference. First operand 89 states and 129 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:35,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:35,763 INFO L93 Difference]: Finished difference Result 207 states and 301 transitions. [2024-11-28 03:10:35,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:10:35,766 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 74 [2024-11-28 03:10:35,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:35,767 INFO L225 Difference]: With dead ends: 207 [2024-11-28 03:10:35,767 INFO L226 Difference]: Without dead ends: 121 [2024-11-28 03:10:35,768 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:10:35,772 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 128 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:35,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 225 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:10:35,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-28 03:10:35,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 77. [2024-11-28 03:10:35,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 66 states have (on average 1.4090909090909092) internal successors, (93), 66 states have internal predecessors, (93), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 03:10:35,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 111 transitions. [2024-11-28 03:10:35,791 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 111 transitions. Word has length 74 [2024-11-28 03:10:35,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:35,792 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 111 transitions. [2024-11-28 03:10:35,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:35,795 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 111 transitions. [2024-11-28 03:10:35,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 03:10:35,796 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:35,796 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:35,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:10:35,797 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:35,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:35,797 INFO L85 PathProgramCache]: Analyzing trace with hash 212492637, now seen corresponding path program 1 times [2024-11-28 03:10:35,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:35,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628655012] [2024-11-28 03:10:35,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:35,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:35,870 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 03:10:35,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:35,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628655012] [2024-11-28 03:10:35,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628655012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:35,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:35,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:10:35,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416256426] [2024-11-28 03:10:35,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:35,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:10:35,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:35,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:10:35,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:10:35,876 INFO L87 Difference]: Start difference. First operand 77 states and 111 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:35,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:35,974 INFO L93 Difference]: Finished difference Result 196 states and 283 transitions. [2024-11-28 03:10:35,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:10:35,975 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 75 [2024-11-28 03:10:35,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:35,977 INFO L225 Difference]: With dead ends: 196 [2024-11-28 03:10:35,977 INFO L226 Difference]: Without dead ends: 122 [2024-11-28 03:10:35,978 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 03:10:35,982 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 54 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:35,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 183 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:10:35,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-28 03:10:35,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 90. [2024-11-28 03:10:35,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 79 states have (on average 1.4050632911392404) internal successors, (111), 79 states have internal predecessors, (111), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 03:10:36,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2024-11-28 03:10:36,006 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 75 [2024-11-28 03:10:36,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:36,006 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2024-11-28 03:10:36,007 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:36,007 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2024-11-28 03:10:36,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 03:10:36,008 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:36,008 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:36,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:10:36,010 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:36,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:36,011 INFO L85 PathProgramCache]: Analyzing trace with hash -2016158326, now seen corresponding path program 1 times [2024-11-28 03:10:36,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:36,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660537952] [2024-11-28 03:10:36,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:36,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:36,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:36,077 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 03:10:36,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:36,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660537952] [2024-11-28 03:10:36,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660537952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:36,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:36,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:10:36,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139005636] [2024-11-28 03:10:36,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:36,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:10:36,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:36,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:10:36,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:10:36,082 INFO L87 Difference]: Start difference. First operand 90 states and 129 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:36,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:36,157 INFO L93 Difference]: Finished difference Result 207 states and 295 transitions. [2024-11-28 03:10:36,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:10:36,157 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 75 [2024-11-28 03:10:36,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:36,159 INFO L225 Difference]: With dead ends: 207 [2024-11-28 03:10:36,159 INFO L226 Difference]: Without dead ends: 120 [2024-11-28 03:10:36,163 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 03:10:36,164 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 75 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:36,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 143 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:10:36,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-28 03:10:36,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 78. [2024-11-28 03:10:36,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 67 states have (on average 1.3582089552238805) internal successors, (91), 67 states have internal predecessors, (91), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 03:10:36,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 109 transitions. [2024-11-28 03:10:36,183 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 109 transitions. Word has length 75 [2024-11-28 03:10:36,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:36,183 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 109 transitions. [2024-11-28 03:10:36,184 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:36,184 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 109 transitions. [2024-11-28 03:10:36,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-28 03:10:36,185 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:36,185 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:36,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:10:36,185 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:36,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:36,186 INFO L85 PathProgramCache]: Analyzing trace with hash -31631447, now seen corresponding path program 1 times [2024-11-28 03:10:36,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:36,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476947382] [2024-11-28 03:10:36,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:36,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:36,355 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 03:10:36,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:36,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476947382] [2024-11-28 03:10:36,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476947382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:36,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:36,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:10:36,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123297264] [2024-11-28 03:10:36,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:36,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:10:36,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:36,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:10:36,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:10:36,358 INFO L87 Difference]: Start difference. First operand 78 states and 109 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:36,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:36,745 INFO L93 Difference]: Finished difference Result 241 states and 333 transitions. [2024-11-28 03:10:36,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:10:36,746 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 76 [2024-11-28 03:10:36,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:36,748 INFO L225 Difference]: With dead ends: 241 [2024-11-28 03:10:36,748 INFO L226 Difference]: Without dead ends: 166 [2024-11-28 03:10:36,749 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:10:36,750 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 201 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:36,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 314 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:10:36,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-28 03:10:36,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 160. [2024-11-28 03:10:36,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 135 states have (on average 1.3333333333333333) internal successors, (180), 137 states have internal predecessors, (180), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 03:10:36,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 220 transitions. [2024-11-28 03:10:36,779 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 220 transitions. Word has length 76 [2024-11-28 03:10:36,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:36,780 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 220 transitions. [2024-11-28 03:10:36,780 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:36,780 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 220 transitions. [2024-11-28 03:10:36,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-28 03:10:36,781 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:36,781 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:36,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:10:36,781 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:36,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:36,782 INFO L85 PathProgramCache]: Analyzing trace with hash -618437461, now seen corresponding path program 1 times [2024-11-28 03:10:36,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:36,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096806758] [2024-11-28 03:10:36,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:36,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:36,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:38,580 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 03:10:38,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:38,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096806758] [2024-11-28 03:10:38,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096806758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:38,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:38,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:10:38,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614469609] [2024-11-28 03:10:38,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:38,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:10:38,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:38,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:10:38,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:10:38,583 INFO L87 Difference]: Start difference. First operand 160 states and 220 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:40,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:40,052 INFO L93 Difference]: Finished difference Result 467 states and 645 transitions. [2024-11-28 03:10:40,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:10:40,053 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 76 [2024-11-28 03:10:40,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:40,056 INFO L225 Difference]: With dead ends: 467 [2024-11-28 03:10:40,056 INFO L226 Difference]: Without dead ends: 314 [2024-11-28 03:10:40,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:10:40,058 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 235 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:40,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 340 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:10:40,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-28 03:10:40,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 180. [2024-11-28 03:10:40,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 155 states have (on average 1.3483870967741935) internal successors, (209), 157 states have internal predecessors, (209), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 03:10:40,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 249 transitions. [2024-11-28 03:10:40,080 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 249 transitions. Word has length 76 [2024-11-28 03:10:40,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:40,081 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 249 transitions. [2024-11-28 03:10:40,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:40,083 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 249 transitions. [2024-11-28 03:10:40,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-28 03:10:40,084 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:40,085 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:40,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:10:40,085 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:40,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:40,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1436085911, now seen corresponding path program 1 times [2024-11-28 03:10:40,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:40,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496668259] [2024-11-28 03:10:40,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:40,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:40,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:40,224 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 03:10:40,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:40,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496668259] [2024-11-28 03:10:40,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496668259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:40,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:40,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:10:40,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885401324] [2024-11-28 03:10:40,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:40,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:10:40,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:40,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:10:40,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:10:40,228 INFO L87 Difference]: Start difference. First operand 180 states and 249 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:40,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:40,379 INFO L93 Difference]: Finished difference Result 504 states and 698 transitions. [2024-11-28 03:10:40,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:10:40,380 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 76 [2024-11-28 03:10:40,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:40,386 INFO L225 Difference]: With dead ends: 504 [2024-11-28 03:10:40,386 INFO L226 Difference]: Without dead ends: 331 [2024-11-28 03:10:40,387 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 03:10:40,387 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 61 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:40,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 174 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:10:40,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-11-28 03:10:40,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 260. [2024-11-28 03:10:40,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 224 states have (on average 1.3348214285714286) internal successors, (299), 226 states have internal predecessors, (299), 29 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (29), 27 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-28 03:10:40,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 357 transitions. [2024-11-28 03:10:40,417 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 357 transitions. Word has length 76 [2024-11-28 03:10:40,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:40,417 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 357 transitions. [2024-11-28 03:10:40,417 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:40,418 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 357 transitions. [2024-11-28 03:10:40,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 03:10:40,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:40,420 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:40,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:10:40,420 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:40,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:40,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1752940520, now seen corresponding path program 1 times [2024-11-28 03:10:40,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:40,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470549293] [2024-11-28 03:10:40,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:40,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:40,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:40,622 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-28 03:10:40,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:40,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470549293] [2024-11-28 03:10:40,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470549293] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:10:40,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697596779] [2024-11-28 03:10:40,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:40,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:10:40,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:10:40,625 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:10:40,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:10:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:40,735 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:10:40,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:10:41,095 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 03:10:41,095 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:10:41,349 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-28 03:10:41,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697596779] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:10:41,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:10:41,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 16 [2024-11-28 03:10:41,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642501015] [2024-11-28 03:10:41,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:10:41,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:10:41,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:41,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:10:41,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:10:41,352 INFO L87 Difference]: Start difference. First operand 260 states and 357 transitions. Second operand has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 16 states have internal predecessors, (67), 6 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (27), 3 states have call predecessors, (27), 6 states have call successors, (27) [2024-11-28 03:10:42,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:42,307 INFO L93 Difference]: Finished difference Result 872 states and 1163 transitions. [2024-11-28 03:10:42,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-28 03:10:42,308 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 16 states have internal predecessors, (67), 6 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (27), 3 states have call predecessors, (27), 6 states have call successors, (27) Word has length 77 [2024-11-28 03:10:42,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:42,313 INFO L225 Difference]: With dead ends: 872 [2024-11-28 03:10:42,313 INFO L226 Difference]: Without dead ends: 768 [2024-11-28 03:10:42,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 03:10:42,315 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 635 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:42,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 698 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:10:42,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2024-11-28 03:10:42,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 278. [2024-11-28 03:10:42,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 220 states have (on average 1.2636363636363637) internal successors, (278), 221 states have internal predecessors, (278), 45 states have call successors, (45), 12 states have call predecessors, (45), 12 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-28 03:10:42,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 368 transitions. [2024-11-28 03:10:42,373 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 368 transitions. Word has length 77 [2024-11-28 03:10:42,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:42,373 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 368 transitions. [2024-11-28 03:10:42,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 16 states have internal predecessors, (67), 6 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (27), 3 states have call predecessors, (27), 6 states have call successors, (27) [2024-11-28 03:10:42,374 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 368 transitions. [2024-11-28 03:10:42,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 03:10:42,375 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:42,375 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:42,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:10:42,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:10:42,579 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:42,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:42,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1330238694, now seen corresponding path program 1 times [2024-11-28 03:10:42,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:42,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063815726] [2024-11-28 03:10:42,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:42,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:10:42,618 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:10:42,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:10:42,690 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:10:42,690 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:10:42,692 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:10:42,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:10:42,698 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:42,752 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:10:42,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:10:42 BoogieIcfgContainer [2024-11-28 03:10:42,756 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:10:42,756 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:10:42,756 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:10:42,756 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:10:42,757 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:27" (3/4) ... [2024-11-28 03:10:42,760 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 03:10:42,761 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:10:42,762 INFO L158 Benchmark]: Toolchain (without parser) took 16709.55ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 95.0MB in the beginning and 124.2MB in the end (delta: -29.2MB). Peak memory consumption was 199.7MB. Max. memory is 16.1GB. [2024-11-28 03:10:42,764 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 142.6MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:10:42,765 INFO L158 Benchmark]: CACSL2BoogieTranslator took 395.42ms. Allocated memory is still 117.4MB. Free memory was 94.7MB in the beginning and 82.1MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:10:42,765 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.43ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 79.1MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:10:42,766 INFO L158 Benchmark]: Boogie Preprocessor took 67.21ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 76.2MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:10:42,767 INFO L158 Benchmark]: RCFGBuilder took 712.57ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 55.8MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:10:42,768 INFO L158 Benchmark]: TraceAbstraction took 15430.48ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 55.2MB in the beginning and 124.3MB in the end (delta: -69.1MB). Peak memory consumption was 166.2MB. Max. memory is 16.1GB. [2024-11-28 03:10:42,769 INFO L158 Benchmark]: Witness Printer took 5.05ms. Allocated memory is still 352.3MB. Free memory was 124.3MB in the beginning and 124.2MB in the end (delta: 72.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:10:42,771 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 142.6MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 395.42ms. Allocated memory is still 117.4MB. Free memory was 94.7MB in the beginning and 82.1MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.43ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 79.1MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.21ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 76.2MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 712.57ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 55.8MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 15430.48ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 55.2MB in the beginning and 124.3MB in the end (delta: -69.1MB). Peak memory consumption was 166.2MB. Max. memory is 16.1GB. * Witness Printer took 5.05ms. Allocated memory is still 352.3MB. Free memory was 124.3MB in the beginning and 124.2MB 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 71, overapproximation of someBinaryFLOATComparisonOperation at line 73, overapproximation of someBinaryFLOATComparisonOperation at line 84, overapproximation of someBinaryFLOATComparisonOperation at line 75, overapproximation of someBinaryFLOATComparisonOperation at line 84, overapproximation of someUnaryDOUBLEoperation at line 27. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -10; [L23] signed short int var_1_5 = 4; [L24] unsigned char var_1_7 = 200; [L25] unsigned char var_1_8 = 32; [L26] float var_1_9 = 256.5; [L27] float var_1_10 = -0.25; [L28] float var_1_11 = 0.30000000000000004; [L29] float var_1_12 = 49.5; [L30] signed long int var_1_13 = -8; [L31] unsigned char var_1_14 = 0; [L32] float var_1_15 = 0.4; [L33] signed long int var_1_16 = -256; [L34] signed long int last_1_var_1_13 = -8; VAL [isInitial=0, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=4, var_1_7=200, var_1_8=32, var_1_9=513/2] [L88] isInitial = 1 [L89] FCALL initially() [L91] CALL updateLastVariables() [L81] last_1_var_1_13 = var_1_13 VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=4, var_1_7=200, var_1_8=32, var_1_9=513/2] [L91] RET updateLastVariables() [L92] CALL updateVariables() [L64] var_1_5 = __VERIFIER_nondet_short() [L65] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=32, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=32, var_1_9=513/2] [L65] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=32, var_1_9=513/2] [L66] CALL assume_abort_if_not(var_1_5 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=32, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=32, var_1_9=513/2] [L66] RET assume_abort_if_not(var_1_5 <= 16383) VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=32, var_1_9=513/2] [L67] var_1_8 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_9=513/2] [L68] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_9=513/2] [L69] CALL assume_abort_if_not(var_1_8 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L69] RET assume_abort_if_not(var_1_8 <= 127) VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L70] var_1_10 = __VERIFIER_nondet_float() [L71] CALL assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L71] RET assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L72] var_1_11 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L73] RET assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=-8, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L74] var_1_12 = __VERIFIER_nondet_float() [L75] CALL assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L75] RET assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=-8, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L76] var_1_14 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_13=-8, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_13=-8, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L77] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_13=-8, var_1_13=-8, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L78] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L78] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, last_1_var_1_13=-8, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L92] RET updateVariables() [L93] CALL step() [L38] COND FALSE !(var_1_5 < last_1_var_1_13) VAL [isInitial=1, last_1_var_1_13=-8, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L41] var_1_16 = var_1_7 [L42] unsigned char stepLocal_1 = var_1_7; VAL [isInitial=1, last_1_var_1_13=-8, stepLocal_1=200, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=200, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L43] COND TRUE ! var_1_14 [L44] var_1_13 = var_1_8 VAL [isInitial=1, last_1_var_1_13=-8, stepLocal_1=200, var_1_13=0, var_1_14=0, var_1_15=2/5, var_1_16=200, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L52] var_1_15 = var_1_11 VAL [isInitial=1, last_1_var_1_13=-8, stepLocal_1=200, var_1_11=405, var_1_13=0, var_1_14=0, var_1_15=405, var_1_16=200, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L53] EXPR var_1_13 ^ var_1_7 VAL [isInitial=1, last_1_var_1_13=-8, stepLocal_1=200, var_1_11=405, var_1_13=0, var_1_14=0, var_1_15=405, var_1_16=200, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L53] signed long int stepLocal_0 = (var_1_13 ^ var_1_7) + var_1_16; [L54] COND FALSE !(stepLocal_0 < -1) [L57] var_1_1 = (128 - (var_1_7 + var_1_7)) VAL [isInitial=1, last_1_var_1_13=-8, stepLocal_1=200, var_1_11=405, var_1_13=0, var_1_14=0, var_1_15=405, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L59] EXPR var_1_7 | var_1_16 VAL [isInitial=1, last_1_var_1_13=-8, stepLocal_1=200, var_1_11=405, var_1_13=0, var_1_14=0, var_1_15=405, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L59] EXPR var_1_13 & (var_1_7 | var_1_16) VAL [isInitial=1, last_1_var_1_13=-8, stepLocal_1=200, var_1_11=405, var_1_13=0, var_1_14=0, var_1_15=405, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L59] COND FALSE !(var_1_7 < (var_1_13 & (var_1_7 | var_1_16))) [L93] RET step() [L94] CALL, EXPR property() [L84] EXPR var_1_13 ^ var_1_7 VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=405, var_1_13=0, var_1_14=0, var_1_15=405, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L84] EXPR (((((var_1_13 ^ var_1_7) + var_1_16) < -1) ? (var_1_1 == ((signed short int) 8)) : (var_1_1 == ((signed short int) (128 - (var_1_7 + var_1_7))))) && ((var_1_5 < last_1_var_1_13) ? (var_1_7 == ((unsigned char) (var_1_8 + 1))) : 1)) && ((var_1_7 < (var_1_13 & (var_1_7 | var_1_16))) ? (var_1_9 == ((float) ((((var_1_10 + (var_1_11 - var_1_12)) < 0 ) ? -(var_1_10 + (var_1_11 - var_1_12)) : (var_1_10 + (var_1_11 - var_1_12)))))) : 1) VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=405, var_1_13=0, var_1_14=0, var_1_15=405, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L84] EXPR var_1_7 | var_1_16 VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=405, var_1_13=0, var_1_14=0, var_1_15=405, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L84] EXPR var_1_13 & (var_1_7 | var_1_16) VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=405, var_1_13=0, var_1_14=0, var_1_15=405, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L84] EXPR (((((var_1_13 ^ var_1_7) + var_1_16) < -1) ? (var_1_1 == ((signed short int) 8)) : (var_1_1 == ((signed short int) (128 - (var_1_7 + var_1_7))))) && ((var_1_5 < last_1_var_1_13) ? (var_1_7 == ((unsigned char) (var_1_8 + 1))) : 1)) && ((var_1_7 < (var_1_13 & (var_1_7 | var_1_16))) ? (var_1_9 == ((float) ((((var_1_10 + (var_1_11 - var_1_12)) < 0 ) ? -(var_1_10 + (var_1_11 - var_1_12)) : (var_1_10 + (var_1_11 - var_1_12)))))) : 1) VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=405, var_1_13=0, var_1_14=0, var_1_15=405, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L84-L85] return ((((((((var_1_13 ^ var_1_7) + var_1_16) < -1) ? (var_1_1 == ((signed short int) 8)) : (var_1_1 == ((signed short int) (128 - (var_1_7 + var_1_7))))) && ((var_1_5 < last_1_var_1_13) ? (var_1_7 == ((unsigned char) (var_1_8 + 1))) : 1)) && ((var_1_7 < (var_1_13 & (var_1_7 | var_1_16))) ? (var_1_9 == ((float) ((((var_1_10 + (var_1_11 - var_1_12)) < 0 ) ? -(var_1_10 + (var_1_11 - var_1_12)) : (var_1_10 + (var_1_11 - var_1_12)))))) : 1)) && ((! var_1_14) ? (var_1_13 == ((signed long int) var_1_8)) : ((var_1_7 > (var_1_7 + var_1_7)) ? (var_1_13 == ((signed long int) var_1_7)) : (var_1_13 == ((signed long int) var_1_16))))) && (var_1_15 == ((float) var_1_11))) && (var_1_16 == ((signed long int) var_1_7)) ; [L94] RET, EXPR property() [L94] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=405, var_1_13=0, var_1_14=0, var_1_15=405, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L19] reach_error() VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=405, var_1_13=0, var_1_14=0, var_1_15=405, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.3s, OverallIterations: 12, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1770 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1762 mSDsluCounter, 2940 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2008 mSDsCounter, 129 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1906 IncrementalHoareTripleChecker+Invalid, 2035 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 129 mSolverCounterUnsat, 932 mSDtfsCounter, 1906 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 334 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=278occurred in iteration=11, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 959 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 8.0s InterpolantComputationTime, 1053 NumberOfCodeBlocks, 1053 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1039 ConstructedInterpolants, 0 QuantifiedInterpolants, 4648 SizeOfPredicates, 4 NumberOfNonLiveVariables, 389 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 14 InterpolantComputations, 10 PerfectInterpolantSequences, 1928/2016 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 03:10:42,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/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_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/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_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-33.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/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_767666f8-1c28-4f0d-b251-319261e820fc/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 207d54556929a93aa39d246b1f9a7e7f3ed779038a85bd758d97838d975fbe31 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:10:46,018 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:10:46,138 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 03:10:46,146 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:10:46,146 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:10:46,203 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:10:46,204 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:10:46,204 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:10:46,205 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:10:46,205 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:10:46,207 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:10:46,207 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:10:46,207 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:10:46,207 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:10:46,207 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:10:46,208 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:10:46,209 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:10:46,209 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:10:46,209 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:10:46,209 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:10:46,209 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:10:46,210 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:10:46,210 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:10:46,210 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:10:46,210 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 03:10:46,210 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 03:10:46,210 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:10:46,211 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:10:46,211 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:10:46,211 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:10:46,211 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:10:46,212 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:10:46,212 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:10:46,212 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:10:46,212 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:10:46,213 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:10:46,213 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:10:46,213 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:10:46,213 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:10:46,213 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:10:46,213 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:10:46,213 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:10:46,213 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:10:46,213 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:10:46,214 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 03:10:46,215 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 03:10:46,215 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:10:46,215 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:10:46,215 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:10:46,215 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:10:46,216 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_767666f8-1c28-4f0d-b251-319261e820fc/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 -> 207d54556929a93aa39d246b1f9a7e7f3ed779038a85bd758d97838d975fbe31 [2024-11-28 03:10:46,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:10:46,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:10:46,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:10:46,600 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:10:46,601 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:10:46,602 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-33.i [2024-11-28 03:10:49,748 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/data/98b5a8cae/5fa23637376c4b0bb7700428b617ec98/FLAG9237343de [2024-11-28 03:10:50,060 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:10:50,061 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-33.i [2024-11-28 03:10:50,073 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/data/98b5a8cae/5fa23637376c4b0bb7700428b617ec98/FLAG9237343de [2024-11-28 03:10:50,362 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/data/98b5a8cae/5fa23637376c4b0bb7700428b617ec98 [2024-11-28 03:10:50,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:10:50,367 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:10:50,371 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:10:50,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:10:50,377 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:10:50,378 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:10:50" (1/1) ... [2024-11-28 03:10:50,379 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@195f7e1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:50, skipping insertion in model container [2024-11-28 03:10:50,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:10:50" (1/1) ... [2024-11-28 03:10:50,407 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:10:50,602 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_767666f8-1c28-4f0d-b251-319261e820fc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-33.i[913,926] [2024-11-28 03:10:50,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:10:50,706 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:10:50,721 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_767666f8-1c28-4f0d-b251-319261e820fc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-33.i[913,926] [2024-11-28 03:10:50,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:10:50,790 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:10:50,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:50 WrapperNode [2024-11-28 03:10:50,792 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:10:50,794 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:10:50,794 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:10:50,794 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:10:50,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:50" (1/1) ... [2024-11-28 03:10:50,823 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:50" (1/1) ... [2024-11-28 03:10:50,861 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90 [2024-11-28 03:10:50,862 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:10:50,862 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:10:50,863 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:10:50,863 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:10:50,874 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:50" (1/1) ... [2024-11-28 03:10:50,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:50" (1/1) ... [2024-11-28 03:10:50,881 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:50" (1/1) ... [2024-11-28 03:10:50,897 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:10:50,897 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:50" (1/1) ... [2024-11-28 03:10:50,898 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:50" (1/1) ... [2024-11-28 03:10:50,907 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:50" (1/1) ... [2024-11-28 03:10:50,908 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:50" (1/1) ... [2024-11-28 03:10:50,912 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:50" (1/1) ... [2024-11-28 03:10:50,914 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:50" (1/1) ... [2024-11-28 03:10:50,916 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:50" (1/1) ... [2024-11-28 03:10:50,923 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:10:50,928 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:10:50,928 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:10:50,928 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:10:50,929 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:50" (1/1) ... [2024-11-28 03:10:50,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:10:50,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:10:50,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:10:50,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:10:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:10:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 03:10:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:10:51,020 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:10:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:10:51,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:10:51,128 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:10:51,130 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:10:51,923 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-28 03:10:51,923 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:10:51,937 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:10:51,937 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:10:51,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:51 BoogieIcfgContainer [2024-11-28 03:10:51,938 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:10:51,941 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:10:51,941 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:10:51,948 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:10:51,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:10:50" (1/3) ... [2024-11-28 03:10:51,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4541361e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:10:51, skipping insertion in model container [2024-11-28 03:10:51,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:50" (2/3) ... [2024-11-28 03:10:51,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4541361e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:10:51, skipping insertion in model container [2024-11-28 03:10:51,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:51" (3/3) ... [2024-11-28 03:10:51,952 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-33.i [2024-11-28 03:10:51,972 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:10:51,974 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-33.i that has 2 procedures, 41 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:10:52,060 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:10:52,106 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;@334e45a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:10:52,106 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:10:52,111 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 03:10:52,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-28 03:10:52,121 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:52,124 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:52,125 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:52,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:52,133 INFO L85 PathProgramCache]: Analyzing trace with hash -222403520, now seen corresponding path program 1 times [2024-11-28 03:10:52,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:10:52,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967337617] [2024-11-28 03:10:52,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:52,151 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:10:52,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:10:52,156 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:10:52,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-28 03:10:52,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:52,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:10:52,510 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:10:52,556 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 03:10:52,556 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:10:52,557 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:10:52,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967337617] [2024-11-28 03:10:52,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [967337617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:52,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:52,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:10:52,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828851995] [2024-11-28 03:10:52,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:52,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:10:52,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:10:52,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:10:52,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:10:52,598 INFO L87 Difference]: Start difference. First operand has 41 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 03:10:52,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:52,632 INFO L93 Difference]: Finished difference Result 75 states and 117 transitions. [2024-11-28 03:10:52,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:10:52,635 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 66 [2024-11-28 03:10:52,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:52,644 INFO L225 Difference]: With dead ends: 75 [2024-11-28 03:10:52,645 INFO L226 Difference]: Without dead ends: 37 [2024-11-28 03:10:52,651 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:10:52,657 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:52,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:10:52,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-28 03:10:52,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-28 03:10:52,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 03:10:52,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 50 transitions. [2024-11-28 03:10:52,702 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 50 transitions. Word has length 66 [2024-11-28 03:10:52,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:52,703 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 50 transitions. [2024-11-28 03:10:52,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 03:10:52,703 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions. [2024-11-28 03:10:52,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-28 03:10:52,706 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:52,707 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:52,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-28 03:10:52,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:10:52,908 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:52,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:52,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1057703046, now seen corresponding path program 1 times [2024-11-28 03:10:52,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:10:52,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [968052972] [2024-11-28 03:10:52,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:52,910 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:10:52,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:10:52,915 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:10:52,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-28 03:10:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:53,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:10:53,175 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:10:54,164 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 03:10:54,165 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:10:54,444 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:10:54,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [968052972] [2024-11-28 03:10:54,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [968052972] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:10:54,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1130309768] [2024-11-28 03:10:54,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:54,445 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:10:54,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:10:54,451 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:10:54,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-28 03:10:55,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:55,173 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:10:55,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:10:55,341 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 03:10:55,341 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:10:55,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1130309768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:55,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:10:55,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-11-28 03:10:55,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016892513] [2024-11-28 03:10:55,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:55,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:10:55,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:10:55,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:10:55,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:10:55,345 INFO L87 Difference]: Start difference. First operand 37 states and 50 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:56,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:56,158 INFO L93 Difference]: Finished difference Result 96 states and 133 transitions. [2024-11-28 03:10:56,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:10:56,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 66 [2024-11-28 03:10:56,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:56,163 INFO L225 Difference]: With dead ends: 96 [2024-11-28 03:10:56,165 INFO L226 Difference]: Without dead ends: 62 [2024-11-28 03:10:56,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:10:56,167 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 41 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:56,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 210 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:10:56,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-28 03:10:56,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 37. [2024-11-28 03:10:56,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 26 states have internal predecessors, (30), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 03:10:56,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2024-11-28 03:10:56,186 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 66 [2024-11-28 03:10:56,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:56,187 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2024-11-28 03:10:56,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:56,187 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2024-11-28 03:10:56,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-28 03:10:56,193 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:56,194 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:56,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/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 03:10:56,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-28 03:10:56,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 03:10:56,595 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:56,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:56,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1116808390, now seen corresponding path program 1 times [2024-11-28 03:10:56,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:10:56,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [746137203] [2024-11-28 03:10:56,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:56,600 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:10:56,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:10:56,602 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:10:56,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-28 03:10:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:56,837 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:10:56,845 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:10:57,468 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 03:10:57,468 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:10:57,685 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:10:57,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [746137203] [2024-11-28 03:10:57,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [746137203] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:10:57,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [740264870] [2024-11-28 03:10:57,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:57,686 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:10:57,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:10:57,689 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:10:57,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-28 03:10:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:58,435 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:10:58,438 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:10:58,981 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 03:10:58,982 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:10:59,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [740264870] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:10:59,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:10:59,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2024-11-28 03:10:59,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305442188] [2024-11-28 03:10:59,161 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:10:59,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:10:59,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:10:59,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:10:59,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:10:59,164 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 03:11:00,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:00,463 INFO L93 Difference]: Finished difference Result 112 states and 144 transitions. [2024-11-28 03:11:00,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:11:00,469 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 66 [2024-11-28 03:11:00,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:00,471 INFO L225 Difference]: With dead ends: 112 [2024-11-28 03:11:00,471 INFO L226 Difference]: Without dead ends: 78 [2024-11-28 03:11:00,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:11:00,473 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 49 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:00,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 164 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:11:00,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-28 03:11:00,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 63. [2024-11-28 03:11:00,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 41 states have (on average 1.0975609756097562) internal successors, (45), 41 states have internal predecessors, (45), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 03:11:00,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 81 transitions. [2024-11-28 03:11:00,502 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 81 transitions. Word has length 66 [2024-11-28 03:11:00,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:00,503 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 81 transitions. [2024-11-28 03:11:00,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 03:11:00,504 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 81 transitions. [2024-11-28 03:11:00,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-28 03:11:00,507 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:00,507 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:00,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-28 03:11:00,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-28 03:11:00,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:11:00,911 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:00,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:00,912 INFO L85 PathProgramCache]: Analyzing trace with hash 723781380, now seen corresponding path program 1 times [2024-11-28 03:11:00,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:11:00,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1895689339] [2024-11-28 03:11:00,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:00,913 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:11:00,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:11:00,916 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:11:00,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767666f8-1c28-4f0d-b251-319261e820fc/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-28 03:11:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:01,159 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 03:11:01,163 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:12:22,348 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 86 proven. 39 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-28 03:12:22,348 INFO L312 TraceCheckSpWp]: Computing backward predicates...