./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-14.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_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/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_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-14.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/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_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/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 b6dd75a239728f3bed2b5ccade49020a43fdfc885749bbbfcbfe69e463ba96ea --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:03:53,620 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:03:53,687 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:03:53,693 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:03:53,693 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:03:53,721 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:03:53,721 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:03:53,722 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:03:53,722 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:03:53,722 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:03:53,722 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:03:53,723 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:03:53,723 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:03:53,723 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:03:53,723 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:03:53,724 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:03:53,724 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:03:53,724 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:03:53,724 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:03:53,724 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:03:53,724 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:03:53,725 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:03:53,725 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:03:53,725 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:03:53,725 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:03:53,725 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:03:53,725 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:03:53,726 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:03:53,726 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:03:53,726 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:03:53,726 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:03:53,726 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:03:53,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:03:53,727 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:03:53,727 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:03:53,727 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:03:53,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:03:53,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:03:53,727 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:03:53,728 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:03:53,728 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:03:53,728 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:03:53,728 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:03:53,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:03:53,728 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:03:53,728 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:03:53,729 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:03:53,729 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:03:53,729 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_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/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 -> b6dd75a239728f3bed2b5ccade49020a43fdfc885749bbbfcbfe69e463ba96ea [2024-11-28 03:03:54,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:03:54,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:03:54,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:03:54,055 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:03:54,055 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:03:54,056 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-14.i [2024-11-28 03:03:57,313 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/data/1ba847221/9692a41e2cab470fa2f4c8b520b33e25/FLAG25e2948da [2024-11-28 03:03:57,668 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:03:57,669 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-14.i [2024-11-28 03:03:57,680 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/data/1ba847221/9692a41e2cab470fa2f4c8b520b33e25/FLAG25e2948da [2024-11-28 03:03:57,893 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/data/1ba847221/9692a41e2cab470fa2f4c8b520b33e25 [2024-11-28 03:03:57,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:03:57,899 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:03:57,903 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:03:57,904 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:03:57,909 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:03:57,910 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:03:57" (1/1) ... [2024-11-28 03:03:57,914 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b5d177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:57, skipping insertion in model container [2024-11-28 03:03:57,914 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:03:57" (1/1) ... [2024-11-28 03:03:57,952 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:03:58,150 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_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-14.i[916,929] [2024-11-28 03:03:58,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:03:58,270 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:03:58,288 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_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-14.i[916,929] [2024-11-28 03:03:58,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:03:58,406 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:03:58,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:58 WrapperNode [2024-11-28 03:03:58,407 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:03:58,410 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:03:58,410 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:03:58,410 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:03:58,425 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:58" (1/1) ... [2024-11-28 03:03:58,438 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:58" (1/1) ... [2024-11-28 03:03:58,505 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 276 [2024-11-28 03:03:58,506 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:03:58,506 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:03:58,507 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:03:58,507 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:03:58,523 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:58" (1/1) ... [2024-11-28 03:03:58,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:58" (1/1) ... [2024-11-28 03:03:58,537 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:58" (1/1) ... [2024-11-28 03:03:58,580 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 03:03:58,580 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:58" (1/1) ... [2024-11-28 03:03:58,581 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:58" (1/1) ... [2024-11-28 03:03:58,616 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:58" (1/1) ... [2024-11-28 03:03:58,618 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:58" (1/1) ... [2024-11-28 03:03:58,631 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:58" (1/1) ... [2024-11-28 03:03:58,637 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:58" (1/1) ... [2024-11-28 03:03:58,640 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:58" (1/1) ... [2024-11-28 03:03:58,655 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:03:58,656 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:03:58,656 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:03:58,656 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:03:58,660 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:58" (1/1) ... [2024-11-28 03:03:58,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:03:58,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:03:58,707 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:03:58,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:03:58,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:03:58,745 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:03:58,745 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:03:58,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:03:58,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:03:58,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:03:58,874 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:03:58,878 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:03:59,896 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-28 03:03:59,896 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:03:59,917 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:03:59,917 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:03:59,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:59 BoogieIcfgContainer [2024-11-28 03:03:59,919 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:03:59,923 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:03:59,923 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:03:59,930 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:03:59,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:03:57" (1/3) ... [2024-11-28 03:03:59,931 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d4a90eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:03:59, skipping insertion in model container [2024-11-28 03:03:59,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:58" (2/3) ... [2024-11-28 03:03:59,931 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d4a90eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:03:59, skipping insertion in model container [2024-11-28 03:03:59,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:59" (3/3) ... [2024-11-28 03:03:59,936 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-14.i [2024-11-28 03:03:59,957 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:03:59,959 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount100_file-14.i that has 2 procedures, 115 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:04:00,051 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:04:00,066 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;@10980f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:04:00,066 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:04:00,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 81 states have (on average 1.4691358024691359) internal successors, (119), 82 states have internal predecessors, (119), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-28 03:04:00,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-28 03:04:00,092 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:00,093 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:04:00,093 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:00,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:00,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1723483616, now seen corresponding path program 1 times [2024-11-28 03:04:00,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:00,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695765012] [2024-11-28 03:04:00,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:00,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:00,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-11-28 03:04:00,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:00,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695765012] [2024-11-28 03:04:00,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695765012] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:04:00,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238569211] [2024-11-28 03:04:00,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:00,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:04:00,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:04:00,730 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:04:00,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:04:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:01,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:04:01,099 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:04:01,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-11-28 03:04:01,163 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:04:01,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238569211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:01,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:04:01,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:04:01,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134995998] [2024-11-28 03:04:01,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:01,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:04:01,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:01,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:04:01,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:04:01,213 INFO L87 Difference]: Start difference. First operand has 115 states, 81 states have (on average 1.4691358024691359) internal successors, (119), 82 states have internal predecessors, (119), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-28 03:04:01,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:01,272 INFO L93 Difference]: Finished difference Result 222 states and 385 transitions. [2024-11-28 03:04:01,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:04:01,275 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) Word has length 202 [2024-11-28 03:04:01,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:01,284 INFO L225 Difference]: With dead ends: 222 [2024-11-28 03:04:01,284 INFO L226 Difference]: Without dead ends: 110 [2024-11-28 03:04:01,290 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 203 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 03:04:01,298 INFO L435 NwaCegarLoop]: 171 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, 171 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 03:04:01,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:04:01,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-28 03:04:01,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2024-11-28 03:04:01,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 77 states have (on average 1.4155844155844155) internal successors, (109), 77 states have internal predecessors, (109), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-28 03:04:01,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 171 transitions. [2024-11-28 03:04:01,363 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 171 transitions. Word has length 202 [2024-11-28 03:04:01,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:01,363 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 171 transitions. [2024-11-28 03:04:01,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-28 03:04:01,364 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 171 transitions. [2024-11-28 03:04:01,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-28 03:04:01,369 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:01,369 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:04:01,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:04:01,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:04:01,570 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:01,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:01,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1536921438, now seen corresponding path program 1 times [2024-11-28 03:04:01,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:01,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254805896] [2024-11-28 03:04:01,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:01,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:01,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:02,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-28 03:04:02,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:02,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254805896] [2024-11-28 03:04:02,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254805896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:02,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:02,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:04:02,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964290064] [2024-11-28 03:04:02,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:02,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:04:02,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:02,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:04:02,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:04:02,451 INFO L87 Difference]: Start difference. First operand 110 states and 171 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-28 03:04:02,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:02,536 INFO L93 Difference]: Finished difference Result 218 states and 341 transitions. [2024-11-28 03:04:02,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:04:02,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 202 [2024-11-28 03:04:02,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:02,544 INFO L225 Difference]: With dead ends: 218 [2024-11-28 03:04:02,544 INFO L226 Difference]: Without dead ends: 111 [2024-11-28 03:04:02,548 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:04:02,549 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 4 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:02,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 495 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:04:02,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-28 03:04:02,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-28 03:04:02,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 78 states have (on average 1.4102564102564104) internal successors, (110), 78 states have internal predecessors, (110), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-28 03:04:02,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 172 transitions. [2024-11-28 03:04:02,578 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 172 transitions. Word has length 202 [2024-11-28 03:04:02,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:02,581 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 172 transitions. [2024-11-28 03:04:02,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-28 03:04:02,581 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 172 transitions. [2024-11-28 03:04:02,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-28 03:04:02,594 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:02,594 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:04:02,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:04:02,595 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:02,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:02,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1256844898, now seen corresponding path program 1 times [2024-11-28 03:04:02,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:02,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857625758] [2024-11-28 03:04:02,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:02,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:11,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-28 03:04:11,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:11,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857625758] [2024-11-28 03:04:11,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857625758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:11,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:11,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:04:11,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539114506] [2024-11-28 03:04:11,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:11,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:04:11,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:11,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:04:11,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:04:11,512 INFO L87 Difference]: Start difference. First operand 111 states and 172 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-28 03:04:16,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:16,100 INFO L93 Difference]: Finished difference Result 478 states and 728 transitions. [2024-11-28 03:04:16,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 03:04:16,101 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 203 [2024-11-28 03:04:16,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:16,105 INFO L225 Difference]: With dead ends: 478 [2024-11-28 03:04:16,105 INFO L226 Difference]: Without dead ends: 370 [2024-11-28 03:04:16,106 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2024-11-28 03:04:16,107 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 1043 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 1293 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:16,108 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1043 Valid, 1012 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1293 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-28 03:04:16,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-11-28 03:04:16,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 242. [2024-11-28 03:04:16,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 174 states have (on average 1.4022988505747127) internal successors, (244), 175 states have internal predecessors, (244), 64 states have call successors, (64), 3 states have call predecessors, (64), 3 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-28 03:04:16,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 372 transitions. [2024-11-28 03:04:16,182 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 372 transitions. Word has length 203 [2024-11-28 03:04:16,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:16,182 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 372 transitions. [2024-11-28 03:04:16,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-28 03:04:16,183 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 372 transitions. [2024-11-28 03:04:16,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-28 03:04:16,186 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:16,186 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:04:16,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:04:16,187 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:16,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:16,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1397393508, now seen corresponding path program 1 times [2024-11-28 03:04:16,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:16,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533621991] [2024-11-28 03:04:16,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:16,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:17,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-28 03:04:17,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:17,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533621991] [2024-11-28 03:04:17,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533621991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:17,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:17,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:04:17,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020825708] [2024-11-28 03:04:17,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:17,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:04:17,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:17,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:04:17,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:04:17,534 INFO L87 Difference]: Start difference. First operand 242 states and 372 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-28 03:04:17,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:17,977 INFO L93 Difference]: Finished difference Result 355 states and 545 transitions. [2024-11-28 03:04:17,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:04:17,978 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 203 [2024-11-28 03:04:17,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:17,981 INFO L225 Difference]: With dead ends: 355 [2024-11-28 03:04:17,981 INFO L226 Difference]: Without dead ends: 247 [2024-11-28 03:04:17,981 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:04:17,982 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 73 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:17,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 505 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:04:17,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-11-28 03:04:18,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 228. [2024-11-28 03:04:18,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 159 states have (on average 1.371069182389937) internal successors, (218), 160 states have internal predecessors, (218), 64 states have call successors, (64), 4 states have call predecessors, (64), 4 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-28 03:04:18,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 346 transitions. [2024-11-28 03:04:18,014 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 346 transitions. Word has length 203 [2024-11-28 03:04:18,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:18,015 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 346 transitions. [2024-11-28 03:04:18,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-28 03:04:18,016 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 346 transitions. [2024-11-28 03:04:18,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-28 03:04:18,018 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:18,018 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:04:18,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:04:18,019 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:18,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:18,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1801435833, now seen corresponding path program 1 times [2024-11-28 03:04:18,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:18,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517031696] [2024-11-28 03:04:18,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:18,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:05:35,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-28 03:05:35,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:05:35,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517031696] [2024-11-28 03:05:35,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517031696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:05:35,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:05:35,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-28 03:05:35,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499820071] [2024-11-28 03:05:35,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:05:35,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 03:05:35,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:05:35,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 03:05:35,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:05:35,433 INFO L87 Difference]: Start difference. First operand 228 states and 346 transitions. Second operand has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-28 03:06:10,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:10,050 INFO L93 Difference]: Finished difference Result 1014 states and 1512 transitions. [2024-11-28 03:06:10,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:06:10,050 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) Word has length 205 [2024-11-28 03:06:10,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:10,057 INFO L225 Difference]: With dead ends: 1014 [2024-11-28 03:06:10,057 INFO L226 Difference]: Without dead ends: 793 [2024-11-28 03:06:10,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 33.7s TimeCoverageRelationStatistics Valid=260, Invalid=610, Unknown=0, NotChecked=0, Total=870 [2024-11-28 03:06:10,059 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 882 mSDsluCounter, 1001 mSDsCounter, 0 mSdLazyCounter, 1960 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 1994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:10,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 1160 Invalid, 1994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1960 Invalid, 0 Unknown, 0 Unchecked, 15.0s Time] [2024-11-28 03:06:10,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2024-11-28 03:06:10,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 540. [2024-11-28 03:06:10,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 408 states have (on average 1.3970588235294117) internal successors, (570), 411 states have internal predecessors, (570), 121 states have call successors, (121), 10 states have call predecessors, (121), 10 states have return successors, (121), 118 states have call predecessors, (121), 121 states have call successors, (121) [2024-11-28 03:06:10,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 812 transitions. [2024-11-28 03:06:10,135 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 812 transitions. Word has length 205 [2024-11-28 03:06:10,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:10,136 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 812 transitions. [2024-11-28 03:06:10,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-28 03:06:10,137 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 812 transitions. [2024-11-28 03:06:10,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-28 03:06:10,140 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:10,140 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:10,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:06:10,140 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:10,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:10,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1792466885, now seen corresponding path program 1 times [2024-11-28 03:06:10,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:10,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478835800] [2024-11-28 03:06:10,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:10,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:09,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-28 03:07:09,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:09,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478835800] [2024-11-28 03:07:09,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478835800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:09,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:09,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 03:07:09,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102718517] [2024-11-28 03:07:09,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:09,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:07:09,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:09,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:07:09,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:07:09,707 INFO L87 Difference]: Start difference. First operand 540 states and 812 transitions. Second operand has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-28 03:07:28,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:28,078 INFO L93 Difference]: Finished difference Result 1553 states and 2307 transitions. [2024-11-28 03:07:28,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:07:28,079 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 205 [2024-11-28 03:07:28,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:28,086 INFO L225 Difference]: With dead ends: 1553 [2024-11-28 03:07:28,087 INFO L226 Difference]: Without dead ends: 1020 [2024-11-28 03:07:28,089 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 18.3s TimeCoverageRelationStatistics Valid=174, Invalid=426, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:07:28,090 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 572 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:28,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 1225 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2024-11-28 03:07:28,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2024-11-28 03:07:28,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 642. [2024-11-28 03:07:28,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 495 states have (on average 1.408080808080808) internal successors, (697), 499 states have internal predecessors, (697), 134 states have call successors, (134), 12 states have call predecessors, (134), 12 states have return successors, (134), 130 states have call predecessors, (134), 134 states have call successors, (134) [2024-11-28 03:07:28,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 965 transitions. [2024-11-28 03:07:28,194 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 965 transitions. Word has length 205 [2024-11-28 03:07:28,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:28,196 INFO L471 AbstractCegarLoop]: Abstraction has 642 states and 965 transitions. [2024-11-28 03:07:28,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-28 03:07:28,196 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 965 transitions. [2024-11-28 03:07:28,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-28 03:07:28,202 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:28,202 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:07:28,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:07:28,203 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:28,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:28,203 INFO L85 PathProgramCache]: Analyzing trace with hash -121792201, now seen corresponding path program 1 times [2024-11-28 03:07:28,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:28,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676014286] [2024-11-28 03:07:28,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:28,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:08:39,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-28 03:08:39,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:08:39,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676014286] [2024-11-28 03:08:39,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676014286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:08:39,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:08:39,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 03:08:39,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631839440] [2024-11-28 03:08:39,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:08:39,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:08:39,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:08:39,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:08:39,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:08:39,601 INFO L87 Difference]: Start difference. First operand 642 states and 965 transitions. Second operand has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-28 03:08:59,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:08:59,488 INFO L93 Difference]: Finished difference Result 1068 states and 1593 transitions. [2024-11-28 03:08:59,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:08:59,489 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 205 [2024-11-28 03:08:59,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:08:59,494 INFO L225 Difference]: With dead ends: 1068 [2024-11-28 03:08:59,494 INFO L226 Difference]: Without dead ends: 854 [2024-11-28 03:08:59,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 25.8s TimeCoverageRelationStatistics Valid=235, Invalid=635, Unknown=0, NotChecked=0, Total=870 [2024-11-28 03:08:59,497 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 852 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 1164 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:08:59,497 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 1103 Invalid, 1171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1164 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-28 03:08:59,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2024-11-28 03:08:59,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 662. [2024-11-28 03:08:59,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 515 states have (on average 1.4135922330097088) internal successors, (728), 519 states have internal predecessors, (728), 134 states have call successors, (134), 12 states have call predecessors, (134), 12 states have return successors, (134), 130 states have call predecessors, (134), 134 states have call successors, (134) [2024-11-28 03:08:59,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 996 transitions. [2024-11-28 03:08:59,580 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 996 transitions. Word has length 205 [2024-11-28 03:08:59,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:08:59,581 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 996 transitions. [2024-11-28 03:08:59,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-28 03:08:59,582 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 996 transitions. [2024-11-28 03:08:59,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-28 03:08:59,585 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:08:59,585 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:08:59,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:08:59,585 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:08:59,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:08:59,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1291962743, now seen corresponding path program 1 times [2024-11-28 03:08:59,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:08:59,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981587849] [2024-11-28 03:08:59,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:08:59,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:08:59,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:08:59,716 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-28 03:08:59,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:08:59,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981587849] [2024-11-28 03:08:59,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981587849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:08:59,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:08:59,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:08:59,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482995341] [2024-11-28 03:08:59,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:08:59,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:08:59,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:08:59,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:08:59,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:08:59,718 INFO L87 Difference]: Start difference. First operand 662 states and 996 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-28 03:08:59,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:08:59,890 INFO L93 Difference]: Finished difference Result 1648 states and 2488 transitions. [2024-11-28 03:08:59,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:08:59,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 205 [2024-11-28 03:08:59,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:08:59,897 INFO L225 Difference]: With dead ends: 1648 [2024-11-28 03:08:59,897 INFO L226 Difference]: Without dead ends: 993 [2024-11-28 03:08:59,900 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:08:59,900 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 108 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:08:59,901 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 594 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:08:59,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2024-11-28 03:08:59,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 782. [2024-11-28 03:08:59,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 584 states have (on average 1.3955479452054795) internal successors, (815), 587 states have internal predecessors, (815), 183 states have call successors, (183), 14 states have call predecessors, (183), 14 states have return successors, (183), 180 states have call predecessors, (183), 183 states have call successors, (183) [2024-11-28 03:08:59,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1181 transitions. [2024-11-28 03:08:59,982 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1181 transitions. Word has length 205 [2024-11-28 03:08:59,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:08:59,983 INFO L471 AbstractCegarLoop]: Abstraction has 782 states and 1181 transitions. [2024-11-28 03:08:59,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-28 03:08:59,983 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1181 transitions. [2024-11-28 03:08:59,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-28 03:08:59,986 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:08:59,987 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:08:59,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:08:59,987 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:08:59,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:08:59,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1842066968, now seen corresponding path program 1 times [2024-11-28 03:08:59,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:08:59,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433545477] [2024-11-28 03:08:59,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:08:59,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:09:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:09:00,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-28 03:09:00,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:09:00,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433545477] [2024-11-28 03:09:00,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433545477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:09:00,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:09:00,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:09:00,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554915896] [2024-11-28 03:09:00,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:09:00,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:09:00,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:09:00,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:09:00,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:09:00,455 INFO L87 Difference]: Start difference. First operand 782 states and 1181 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-28 03:09:01,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:09:01,320 INFO L93 Difference]: Finished difference Result 1913 states and 2881 transitions. [2024-11-28 03:09:01,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:09:01,321 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) Word has length 206 [2024-11-28 03:09:01,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:09:01,329 INFO L225 Difference]: With dead ends: 1913 [2024-11-28 03:09:01,332 INFO L226 Difference]: Without dead ends: 1138 [2024-11-28 03:09:01,335 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:09:01,337 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 294 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:09:01,338 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 728 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:09:01,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2024-11-28 03:09:01,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 1058. [2024-11-28 03:09:01,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 812 states have (on average 1.4088669950738917) internal successors, (1144), 816 states have internal predecessors, (1144), 227 states have call successors, (227), 18 states have call predecessors, (227), 18 states have return successors, (227), 223 states have call predecessors, (227), 227 states have call successors, (227) [2024-11-28 03:09:01,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1598 transitions. [2024-11-28 03:09:01,448 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1598 transitions. Word has length 206 [2024-11-28 03:09:01,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:09:01,448 INFO L471 AbstractCegarLoop]: Abstraction has 1058 states and 1598 transitions. [2024-11-28 03:09:01,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-28 03:09:01,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1598 transitions. [2024-11-28 03:09:01,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-28 03:09:01,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:09:01,451 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:09:01,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:09:01,451 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:09:01,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:09:01,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1141002390, now seen corresponding path program 1 times [2024-11-28 03:09:01,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:09:01,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55606921] [2024-11-28 03:09:01,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:09:01,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:09:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:08,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-28 03:10:08,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:08,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55606921] [2024-11-28 03:10:08,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55606921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:08,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:08,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-28 03:10:08,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119508057] [2024-11-28 03:10:08,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:08,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:10:08,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:08,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:10:08,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:10:08,041 INFO L87 Difference]: Start difference. First operand 1058 states and 1598 transitions. Second operand has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-28 03:10:24,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:24,116 INFO L93 Difference]: Finished difference Result 2332 states and 3509 transitions. [2024-11-28 03:10:24,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 03:10:24,117 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) Word has length 206 [2024-11-28 03:10:24,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:24,126 INFO L225 Difference]: With dead ends: 2332 [2024-11-28 03:10:24,126 INFO L226 Difference]: Without dead ends: 1633 [2024-11-28 03:10:24,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 18.6s TimeCoverageRelationStatistics Valid=327, Invalid=729, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 03:10:24,129 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 982 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 1381 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:24,130 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [982 Valid, 1085 Invalid, 1414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1381 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2024-11-28 03:10:24,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2024-11-28 03:10:24,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1445. [2024-11-28 03:10:24,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1118 states have (on average 1.4168157423971377) internal successors, (1584), 1123 states have internal predecessors, (1584), 302 states have call successors, (302), 24 states have call predecessors, (302), 24 states have return successors, (302), 297 states have call predecessors, (302), 302 states have call successors, (302) [2024-11-28 03:10:24,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 2188 transitions. [2024-11-28 03:10:24,267 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 2188 transitions. Word has length 206 [2024-11-28 03:10:24,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:24,268 INFO L471 AbstractCegarLoop]: Abstraction has 1445 states and 2188 transitions. [2024-11-28 03:10:24,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-28 03:10:24,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 2188 transitions. [2024-11-28 03:10:24,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-28 03:10:24,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:24,272 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:10:24,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:10:24,272 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:24,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:24,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1564451955, now seen corresponding path program 1 times [2024-11-28 03:10:24,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:24,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156284831] [2024-11-28 03:10:24,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:24,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:24,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-28 03:11:24,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:11:24,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156284831] [2024-11-28 03:11:24,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156284831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:11:24,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:11:24,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-28 03:11:24,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64997137] [2024-11-28 03:11:24,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:24,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 03:11:24,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:11:24,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 03:11:24,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:11:24,549 INFO L87 Difference]: Start difference. First operand 1445 states and 2188 transitions. Second operand has 17 states, 17 states have (on average 3.176470588235294) internal successors, (54), 17 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-28 03:11:56,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:56,875 INFO L93 Difference]: Finished difference Result 2645 states and 3965 transitions. [2024-11-28 03:11:56,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 03:11:56,876 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.176470588235294) internal successors, (54), 17 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 206 [2024-11-28 03:11:56,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:56,885 INFO L225 Difference]: With dead ends: 2645 [2024-11-28 03:11:56,885 INFO L226 Difference]: Without dead ends: 1668 [2024-11-28 03:11:56,888 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 30.0s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2024-11-28 03:11:56,889 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 790 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 2341 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 1181 SdHoareTripleChecker+Invalid, 2349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:56,889 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 1181 Invalid, 2349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2341 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2024-11-28 03:11:56,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2024-11-28 03:11:57,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1461. [2024-11-28 03:11:57,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1134 states have (on average 1.4197530864197532) internal successors, (1610), 1139 states have internal predecessors, (1610), 302 states have call successors, (302), 24 states have call predecessors, (302), 24 states have return successors, (302), 297 states have call predecessors, (302), 302 states have call successors, (302) [2024-11-28 03:11:57,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 2214 transitions. [2024-11-28 03:11:57,034 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 2214 transitions. Word has length 206 [2024-11-28 03:11:57,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:57,034 INFO L471 AbstractCegarLoop]: Abstraction has 1461 states and 2214 transitions. [2024-11-28 03:11:57,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.176470588235294) internal successors, (54), 17 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-28 03:11:57,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 2214 transitions. [2024-11-28 03:11:57,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-28 03:11:57,037 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:57,037 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:11:57,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:11:57,037 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:57,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:57,037 INFO L85 PathProgramCache]: Analyzing trace with hash -2029450763, now seen corresponding path program 1 times [2024-11-28 03:11:57,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:57,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710762992] [2024-11-28 03:11:57,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:57,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:59,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-28 03:12:59,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:12:59,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710762992] [2024-11-28 03:12:59,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710762992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:59,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:59,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-28 03:12:59,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291971467] [2024-11-28 03:12:59,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:59,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:12:59,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:12:59,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:12:59,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:12:59,967 INFO L87 Difference]: Start difference. First operand 1461 states and 2214 transitions. Second operand has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-28 03:13:35,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:35,166 INFO L93 Difference]: Finished difference Result 2661 states and 3990 transitions. [2024-11-28 03:13:35,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 03:13:35,167 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 206 [2024-11-28 03:13:35,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:35,176 INFO L225 Difference]: With dead ends: 2661 [2024-11-28 03:13:35,176 INFO L226 Difference]: Without dead ends: 1668 [2024-11-28 03:13:35,179 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 32.1s TimeCoverageRelationStatistics Valid=374, Invalid=886, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 03:13:35,179 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 867 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 2404 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 2436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:35,180 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 1427 Invalid, 2436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2404 Invalid, 0 Unknown, 0 Unchecked, 15.7s Time] [2024-11-28 03:13:35,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2024-11-28 03:13:35,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1450. [2024-11-28 03:13:35,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1450 states, 1123 states have (on average 1.4185218165627782) internal successors, (1593), 1128 states have internal predecessors, (1593), 302 states have call successors, (302), 24 states have call predecessors, (302), 24 states have return successors, (302), 297 states have call predecessors, (302), 302 states have call successors, (302) [2024-11-28 03:13:35,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 2197 transitions. [2024-11-28 03:13:35,323 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 2197 transitions. Word has length 206 [2024-11-28 03:13:35,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:35,324 INFO L471 AbstractCegarLoop]: Abstraction has 1450 states and 2197 transitions. [2024-11-28 03:13:35,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-28 03:13:35,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 2197 transitions. [2024-11-28 03:13:35,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-28 03:13:35,326 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:35,326 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:35,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:13:35,327 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:35,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:35,327 INFO L85 PathProgramCache]: Analyzing trace with hash 2073925045, now seen corresponding path program 1 times [2024-11-28 03:13:35,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:35,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285709358] [2024-11-28 03:13:35,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:35,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:35,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:39,306 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-28 03:13:39,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101 [2024-11-28 03:13:39,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:13:39,307 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.postprocessInterpolant(NestedInterpolantsBuilder.java:472) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.buildPredicates(NestedInterpolantsBuilder.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:292) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:227) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 58 more [2024-11-28 03:13:39,313 INFO L158 Benchmark]: Toolchain (without parser) took 581414.42ms. Allocated memory was 117.4MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 92.5MB in the beginning and 554.1MB in the end (delta: -461.6MB). Peak memory consumption was 827.2MB. Max. memory is 16.1GB. [2024-11-28 03:13:39,313 INFO L158 Benchmark]: CDTParser took 0.87ms. Allocated memory is still 117.4MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:13:39,313 INFO L158 Benchmark]: CACSL2BoogieTranslator took 505.84ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 75.8MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:13:39,314 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.12ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 69.9MB in the end (delta: 6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:13:39,314 INFO L158 Benchmark]: Boogie Preprocessor took 148.96ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 63.6MB in the end (delta: 6.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:13:39,314 INFO L158 Benchmark]: RCFGBuilder took 1263.32ms. Allocated memory is still 117.4MB. Free memory was 63.6MB in the beginning and 78.7MB in the end (delta: -15.1MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. [2024-11-28 03:13:39,314 INFO L158 Benchmark]: TraceAbstraction took 579389.49ms. Allocated memory was 117.4MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 78.1MB in the beginning and 554.1MB in the end (delta: -475.9MB). Peak memory consumption was 812.4MB. Max. memory is 16.1GB. [2024-11-28 03:13:39,316 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87ms. Allocated memory is still 117.4MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 505.84ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 75.8MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.12ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 69.9MB in the end (delta: 6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 148.96ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 63.6MB in the end (delta: 6.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1263.32ms. Allocated memory is still 117.4MB. Free memory was 63.6MB in the beginning and 78.7MB in the end (delta: -15.1MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. * TraceAbstraction took 579389.49ms. Allocated memory was 117.4MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 78.1MB in the beginning and 554.1MB in the end (delta: -475.9MB). Peak memory consumption was 812.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. 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_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/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_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-14.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/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_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/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 b6dd75a239728f3bed2b5ccade49020a43fdfc885749bbbfcbfe69e463ba96ea --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:13:41,753 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:13:41,898 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 03:13:41,911 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:13:41,912 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:13:41,935 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:13:41,936 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:13:41,936 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:13:41,937 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:13:41,937 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:13:41,937 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:13:41,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:13:41,937 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:13:41,938 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:13:41,938 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:13:41,938 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:13:41,938 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:13:41,938 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:13:41,938 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:13:41,939 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:13:41,939 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:13:41,939 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:13:41,939 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:13:41,939 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:13:41,939 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 03:13:41,939 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 03:13:41,940 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:13:41,940 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:13:41,940 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:13:41,940 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:13:41,940 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:13:41,940 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:13:41,941 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:13:41,941 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:13:41,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:13:41,941 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:13:41,941 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:13:41,941 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:13:41,941 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:13:41,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:13:41,942 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:13:41,942 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:13:41,942 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:13:41,942 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:13:41,942 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 03:13:41,942 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 03:13:41,943 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:13:41,943 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:13:41,943 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:13:41,943 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:13:41,943 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_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/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 -> b6dd75a239728f3bed2b5ccade49020a43fdfc885749bbbfcbfe69e463ba96ea [2024-11-28 03:13:42,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:13:42,267 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:13:42,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:13:42,273 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:13:42,274 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:13:42,277 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-14.i [2024-11-28 03:13:45,236 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/data/41f93ee6a/01858ac641e84cc59d5f693e66c3f775/FLAGfe9810785 [2024-11-28 03:13:45,526 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:13:45,527 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-14.i [2024-11-28 03:13:45,539 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/data/41f93ee6a/01858ac641e84cc59d5f693e66c3f775/FLAGfe9810785 [2024-11-28 03:13:45,808 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/data/41f93ee6a/01858ac641e84cc59d5f693e66c3f775 [2024-11-28 03:13:45,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:13:45,812 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:13:45,814 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:13:45,814 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:13:45,819 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:13:45,819 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:13:45" (1/1) ... [2024-11-28 03:13:45,820 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40adb160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:45, skipping insertion in model container [2024-11-28 03:13:45,821 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:13:45" (1/1) ... [2024-11-28 03:13:45,843 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:13:46,014 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_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-14.i[916,929] [2024-11-28 03:13:46,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:13:46,107 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:13:46,122 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_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-14.i[916,929] [2024-11-28 03:13:46,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:13:46,184 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:13:46,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:46 WrapperNode [2024-11-28 03:13:46,185 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:13:46,186 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:13:46,186 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:13:46,186 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:13:46,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:46" (1/1) ... [2024-11-28 03:13:46,202 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:46" (1/1) ... [2024-11-28 03:13:46,229 INFO L138 Inliner]: procedures = 27, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 204 [2024-11-28 03:13:46,230 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:13:46,230 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:13:46,230 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:13:46,230 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:13:46,243 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:46" (1/1) ... [2024-11-28 03:13:46,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:46" (1/1) ... [2024-11-28 03:13:46,247 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:46" (1/1) ... [2024-11-28 03:13:46,260 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 03:13:46,260 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:46" (1/1) ... [2024-11-28 03:13:46,261 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:46" (1/1) ... [2024-11-28 03:13:46,272 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:46" (1/1) ... [2024-11-28 03:13:46,273 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:46" (1/1) ... [2024-11-28 03:13:46,277 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:46" (1/1) ... [2024-11-28 03:13:46,280 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:46" (1/1) ... [2024-11-28 03:13:46,281 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:46" (1/1) ... [2024-11-28 03:13:46,285 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:13:46,286 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:13:46,286 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:13:46,286 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:13:46,287 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:46" (1/1) ... [2024-11-28 03:13:46,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:13:46,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:13:46,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:13:46,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:13:46,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:13:46,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 03:13:46,357 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:13:46,357 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:13:46,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:13:46,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:13:46,474 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:13:46,476 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:13:48,517 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-28 03:13:48,517 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:13:48,547 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:13:48,547 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:13:48,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:48 BoogieIcfgContainer [2024-11-28 03:13:48,548 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:13:48,550 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:13:48,550 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:13:48,555 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:13:48,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:13:45" (1/3) ... [2024-11-28 03:13:48,556 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98e61c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:13:48, skipping insertion in model container [2024-11-28 03:13:48,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:46" (2/3) ... [2024-11-28 03:13:48,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98e61c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:13:48, skipping insertion in model container [2024-11-28 03:13:48,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:48" (3/3) ... [2024-11-28 03:13:48,558 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-14.i [2024-11-28 03:13:48,571 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:13:48,573 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount100_file-14.i that has 2 procedures, 89 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:13:48,638 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:48,654 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;@121b9f99, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:48,655 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:13:48,660 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 55 states have (on average 1.4181818181818182) internal successors, (78), 56 states have internal predecessors, (78), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-28 03:13:48,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-28 03:13:48,671 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:48,672 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:48,672 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:48,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:48,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1318783381, now seen corresponding path program 1 times [2024-11-28 03:13:48,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:13:48,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1230227770] [2024-11-28 03:13:48,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:48,689 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 03:13:48,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:13:48,691 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/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 03:13:48,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/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 03:13:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:49,215 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:13:49,225 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:49,274 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 704 proven. 0 refuted. 0 times theorem prover too weak. 1156 trivial. 0 not checked. [2024-11-28 03:13:49,274 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:13:49,274 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:13:49,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1230227770] [2024-11-28 03:13:49,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1230227770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:49,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:49,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:49,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559855196] [2024-11-28 03:13:49,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:49,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:13:49,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:13:49,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:13:49,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:13:49,304 INFO L87 Difference]: Start difference. First operand has 89 states, 55 states have (on average 1.4181818181818182) internal successors, (78), 56 states have internal predecessors, (78), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-28 03:13:49,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:49,335 INFO L93 Difference]: Finished difference Result 170 states and 303 transitions. [2024-11-28 03:13:49,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:13:49,340 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 196 [2024-11-28 03:13:49,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:49,351 INFO L225 Difference]: With dead ends: 170 [2024-11-28 03:13:49,352 INFO L226 Difference]: Without dead ends: 84 [2024-11-28 03:13:49,357 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 195 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 03:13:49,362 INFO L435 NwaCegarLoop]: 130 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, 130 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 03:13:49,363 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:13:49,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-28 03:13:49,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-28 03:13:49,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 51 states have internal predecessors, (68), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-28 03:13:49,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 130 transitions. [2024-11-28 03:13:49,426 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 130 transitions. Word has length 196 [2024-11-28 03:13:49,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:49,427 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 130 transitions. [2024-11-28 03:13:49,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-28 03:13:49,428 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 130 transitions. [2024-11-28 03:13:49,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-28 03:13:49,433 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:49,433 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:49,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/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 03:13:49,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/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 03:13:49,634 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:49,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:49,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1504631469, now seen corresponding path program 1 times [2024-11-28 03:13:49,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:13:49,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1388674142] [2024-11-28 03:13:49,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:49,637 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 03:13:49,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:13:49,641 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/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 03:13:49,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/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 03:13:50,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:50,140 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:13:50,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:52,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-28 03:13:52,725 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:13:52,725 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:13:52,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1388674142] [2024-11-28 03:13:52,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1388674142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:52,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:52,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:13:52,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765091709] [2024-11-28 03:13:52,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:52,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:13:52,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:13:52,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:13:52,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:13:52,734 INFO L87 Difference]: Start difference. First operand 84 states and 130 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-28 03:13:55,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:55,490 INFO L93 Difference]: Finished difference Result 255 states and 394 transitions. [2024-11-28 03:13:55,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:13:55,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 196 [2024-11-28 03:13:55,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:55,511 INFO L225 Difference]: With dead ends: 255 [2024-11-28 03:13:55,511 INFO L226 Difference]: Without dead ends: 174 [2024-11-28 03:13:55,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:55,514 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 106 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:55,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 360 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-28 03:13:55,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-28 03:13:55,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 163. [2024-11-28 03:13:55,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 98 states have (on average 1.336734693877551) internal successors, (131), 98 states have internal predecessors, (131), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 03:13:55,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 255 transitions. [2024-11-28 03:13:55,563 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 255 transitions. Word has length 196 [2024-11-28 03:13:55,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:55,564 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 255 transitions. [2024-11-28 03:13:55,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-28 03:13:55,565 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 255 transitions. [2024-11-28 03:13:55,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-28 03:13:55,569 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:55,569 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:55,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/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 03:13:55,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/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 03:13:55,770 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:55,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:55,770 INFO L85 PathProgramCache]: Analyzing trace with hash -184312273, now seen corresponding path program 1 times [2024-11-28 03:13:55,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:13:55,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126038700] [2024-11-28 03:13:55,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:55,772 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 03:13:55,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:13:55,774 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/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 03:13:55,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-28 03:13:56,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:56,209 INFO L256 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:13:56,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:57,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-28 03:13:57,383 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:13:57,384 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:13:57,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [126038700] [2024-11-28 03:13:57,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [126038700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:57,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:57,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:13:57,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484125152] [2024-11-28 03:13:57,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:57,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:13:57,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:13:57,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:13:57,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:13:57,387 INFO L87 Difference]: Start difference. First operand 163 states and 255 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-28 03:13:58,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:13:59,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:59,535 INFO L93 Difference]: Finished difference Result 404 states and 634 transitions. [2024-11-28 03:13:59,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:13:59,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 196 [2024-11-28 03:13:59,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:59,540 INFO L225 Difference]: With dead ends: 404 [2024-11-28 03:13:59,541 INFO L226 Difference]: Without dead ends: 244 [2024-11-28 03:13:59,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:59,543 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 35 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:59,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 358 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 03:13:59,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-28 03:13:59,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 242. [2024-11-28 03:13:59,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 145 states have (on average 1.3310344827586207) internal successors, (193), 145 states have internal predecessors, (193), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-28 03:13:59,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 379 transitions. [2024-11-28 03:13:59,608 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 379 transitions. Word has length 196 [2024-11-28 03:13:59,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:59,609 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 379 transitions. [2024-11-28 03:13:59,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-28 03:13:59,610 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 379 transitions. [2024-11-28 03:13:59,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-28 03:13:59,614 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:59,614 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:59,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-28 03:13:59,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/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 03:13:59,815 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:59,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:59,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1824677051, now seen corresponding path program 1 times [2024-11-28 03:13:59,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:13:59,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1201783539] [2024-11-28 03:13:59,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:59,817 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 03:13:59,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:13:59,820 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/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 03:13:59,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afddb811-fb5b-40c3-b4d8-97aaf2df06e0/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 03:14:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:00,507 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-28 03:14:00,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:15:04,540 WARN L286 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 85 DAG size of output: 82 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:15:25,045 WARN L286 SmtUtils]: Spent 6.09s on a formula simplification. DAG size of input: 87 DAG size of output: 86 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:15:48,174 WARN L286 SmtUtils]: Spent 6.91s on a formula simplification. DAG size of input: 89 DAG size of output: 88 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:16:37,875 WARN L286 SmtUtils]: Spent 10.02s on a formula simplification. DAG size of input: 94 DAG size of output: 93 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:17:12,846 WARN L286 SmtUtils]: Spent 8.88s on a formula simplification that was a NOOP. DAG size: 96 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:17:58,671 WARN L286 SmtUtils]: Spent 9.78s on a formula simplification. DAG size of input: 99 DAG size of output: 100 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)