./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-33.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e10d7589-6424-421f-89c4-6c73d86c103a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e10d7589-6424-421f-89c4-6c73d86c103a/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_e10d7589-6424-421f-89c4-6c73d86c103a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e10d7589-6424-421f-89c4-6c73d86c103a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-33.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e10d7589-6424-421f-89c4-6c73d86c103a/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_e10d7589-6424-421f-89c4-6c73d86c103a/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 5c234e2fefe11c7ac0093946cc9cf5ef419837c81c25df397f2c3f9610af0164 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:39:21,698 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:39:21,807 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e10d7589-6424-421f-89c4-6c73d86c103a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:39:21,814 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:39:21,814 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:39:21,845 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:39:21,846 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:39:21,846 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:39:21,846 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:39:21,846 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:39:21,847 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:39:21,847 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:39:21,847 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:39:21,847 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:39:21,847 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:39:21,848 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:39:21,848 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:39:21,848 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:39:21,848 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:39:21,848 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:39:21,848 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:39:21,848 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:39:21,849 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:39:21,849 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:39:21,849 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:39:21,849 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:39:21,849 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:39:21,849 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:39:21,849 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:39:21,849 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:39:21,850 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:39:21,850 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:39:21,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:39:21,850 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:39:21,850 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:39:21,850 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:39:21,850 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:39:21,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:39:21,850 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:39:21,851 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:39:21,851 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:39:21,851 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:39:21,851 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:39:21,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:39:21,851 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:39:21,851 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:39:21,851 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:39:21,851 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:39:21,851 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_e10d7589-6424-421f-89c4-6c73d86c103a/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 -> 5c234e2fefe11c7ac0093946cc9cf5ef419837c81c25df397f2c3f9610af0164 [2024-11-28 03:39:22,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:39:22,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:39:22,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:39:22,224 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:39:22,224 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:39:22,227 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e10d7589-6424-421f-89c4-6c73d86c103a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-33.i [2024-11-28 03:39:25,639 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e10d7589-6424-421f-89c4-6c73d86c103a/bin/uautomizer-verify-aQ6SnzHsRB/data/ad2029691/01dddcc47c1d488096f85aef0cfa38fb/FLAGc0f217fe3 [2024-11-28 03:39:26,087 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:39:26,088 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e10d7589-6424-421f-89c4-6c73d86c103a/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-33.i [2024-11-28 03:39:26,099 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e10d7589-6424-421f-89c4-6c73d86c103a/bin/uautomizer-verify-aQ6SnzHsRB/data/ad2029691/01dddcc47c1d488096f85aef0cfa38fb/FLAGc0f217fe3 [2024-11-28 03:39:26,128 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e10d7589-6424-421f-89c4-6c73d86c103a/bin/uautomizer-verify-aQ6SnzHsRB/data/ad2029691/01dddcc47c1d488096f85aef0cfa38fb [2024-11-28 03:39:26,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:39:26,134 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:39:26,137 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:39:26,139 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:39:26,149 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:39:26,152 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:39:26" (1/1) ... [2024-11-28 03:39:26,153 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@266a5a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:39:26, skipping insertion in model container [2024-11-28 03:39:26,155 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:39:26" (1/1) ... [2024-11-28 03:39:26,194 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:39:26,411 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_e10d7589-6424-421f-89c4-6c73d86c103a/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-33.i[919,932] [2024-11-28 03:39:26,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:39:26,583 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:39:26,600 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_e10d7589-6424-421f-89c4-6c73d86c103a/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-33.i[919,932] [2024-11-28 03:39:26,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:39:26,706 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:39:26,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:39:26 WrapperNode [2024-11-28 03:39:26,708 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:39:26,710 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:39:26,711 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:39:26,711 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:39:26,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:39:26" (1/1) ... [2024-11-28 03:39:26,735 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:39:26" (1/1) ... [2024-11-28 03:39:26,813 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 225 [2024-11-28 03:39:26,814 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:39:26,814 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:39:26,814 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:39:26,815 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:39:26,826 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:39:26" (1/1) ... [2024-11-28 03:39:26,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:39:26" (1/1) ... [2024-11-28 03:39:26,830 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:39:26" (1/1) ... [2024-11-28 03:39:26,850 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 03:39:26,850 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:39:26" (1/1) ... [2024-11-28 03:39:26,850 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:39:26" (1/1) ... [2024-11-28 03:39:26,860 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:39:26" (1/1) ... [2024-11-28 03:39:26,862 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:39:26" (1/1) ... [2024-11-28 03:39:26,866 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:39:26" (1/1) ... [2024-11-28 03:39:26,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:39:26" (1/1) ... [2024-11-28 03:39:26,872 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:39:26" (1/1) ... [2024-11-28 03:39:26,877 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:39:26,878 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:39:26,878 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:39:26,878 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:39:26,879 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:39:26" (1/1) ... [2024-11-28 03:39:26,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:39:26,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e10d7589-6424-421f-89c4-6c73d86c103a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:39:26,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e10d7589-6424-421f-89c4-6c73d86c103a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:39:26,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e10d7589-6424-421f-89c4-6c73d86c103a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:39:26,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:39:26,952 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:39:26,952 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:39:26,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:39:26,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:39:26,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:39:27,086 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:39:27,088 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:39:27,773 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-28 03:39:27,773 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:39:27,793 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:39:27,796 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:39:27,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:39:27 BoogieIcfgContainer [2024-11-28 03:39:27,797 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:39:27,801 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:39:27,802 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:39:27,836 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:39:27,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:39:26" (1/3) ... [2024-11-28 03:39:27,839 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19787fa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:39:27, skipping insertion in model container [2024-11-28 03:39:27,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:39:26" (2/3) ... [2024-11-28 03:39:27,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19787fa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:39:27, skipping insertion in model container [2024-11-28 03:39:27,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:39:27" (3/3) ... [2024-11-28 03:39:27,843 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-33.i [2024-11-28 03:39:27,867 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:39:27,870 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-33.i that has 2 procedures, 101 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:39:27,955 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:39:27,972 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;@1c1c7e42, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:39:27,973 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:39:27,977 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 64 states have (on average 1.421875) internal successors, (91), 65 states have internal predecessors, (91), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 03:39:27,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-28 03:39:27,994 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:39:27,995 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:39:27,995 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:39:28,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:39:28,001 INFO L85 PathProgramCache]: Analyzing trace with hash 962189530, now seen corresponding path program 1 times [2024-11-28 03:39:28,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:39:28,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863035352] [2024-11-28 03:39:28,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:39:28,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:39:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:39:28,604 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 2178 trivial. 0 not checked. [2024-11-28 03:39:28,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:39:28,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863035352] [2024-11-28 03:39:28,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863035352] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:39:28,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494809504] [2024-11-28 03:39:28,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:39:28,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:39:28,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e10d7589-6424-421f-89c4-6c73d86c103a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:39:28,609 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e10d7589-6424-421f-89c4-6c73d86c103a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:39:28,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e10d7589-6424-421f-89c4-6c73d86c103a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:39:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:39:28,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:39:28,993 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:39:29,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 2178 trivial. 0 not checked. [2024-11-28 03:39:29,088 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:39:29,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494809504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:39:29,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:39:29,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:39:29,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442788914] [2024-11-28 03:39:29,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:39:29,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:39:29,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:39:29,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:39:29,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:39:29,137 INFO L87 Difference]: Start difference. First operand has 101 states, 64 states have (on average 1.421875) internal successors, (91), 65 states have internal predecessors, (91), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-28 03:39:29,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:39:29,201 INFO L93 Difference]: Finished difference Result 193 states and 342 transitions. [2024-11-28 03:39:29,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:39:29,203 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) Word has length 214 [2024-11-28 03:39:29,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:39:29,216 INFO L225 Difference]: With dead ends: 193 [2024-11-28 03:39:29,216 INFO L226 Difference]: Without dead ends: 95 [2024-11-28 03:39:29,221 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 215 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 03:39:29,227 INFO L435 NwaCegarLoop]: 144 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, 144 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 03:39:29,229 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:39:29,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-28 03:39:29,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-28 03:39:29,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 59 states have (on average 1.2881355932203389) internal successors, (76), 59 states have internal predecessors, (76), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 03:39:29,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 144 transitions. [2024-11-28 03:39:29,314 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 144 transitions. Word has length 214 [2024-11-28 03:39:29,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:39:29,315 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 144 transitions. [2024-11-28 03:39:29,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-28 03:39:29,316 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 144 transitions. [2024-11-28 03:39:29,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-28 03:39:29,324 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:39:29,324 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:39:29,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e10d7589-6424-421f-89c4-6c73d86c103a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:39:29,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e10d7589-6424-421f-89c4-6c73d86c103a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:39:29,530 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:39:29,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:39:29,531 INFO L85 PathProgramCache]: Analyzing trace with hash 620498464, now seen corresponding path program 1 times [2024-11-28 03:39:29,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:39:29,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630789232] [2024-11-28 03:39:29,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:39:29,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:39:29,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:39:30,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-28 03:39:30,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:39:30,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630789232] [2024-11-28 03:39:30,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630789232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:39:30,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:39:30,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:39:30,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588301449] [2024-11-28 03:39:30,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:39:30,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:39:30,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:39:30,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:39:30,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:39:30,358 INFO L87 Difference]: Start difference. First operand 95 states and 144 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-28 03:39:30,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:39:30,604 INFO L93 Difference]: Finished difference Result 267 states and 411 transitions. [2024-11-28 03:39:30,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:39:30,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 214 [2024-11-28 03:39:30,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:39:30,614 INFO L225 Difference]: With dead ends: 267 [2024-11-28 03:39:30,615 INFO L226 Difference]: Without dead ends: 175 [2024-11-28 03:39:30,616 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:39:30,617 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 111 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:39:30,618 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 265 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:39:30,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-28 03:39:30,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 172. [2024-11-28 03:39:30,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 101 states have (on average 1.2772277227722773) internal successors, (129), 101 states have internal predecessors, (129), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-28 03:39:30,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 265 transitions. [2024-11-28 03:39:30,691 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 265 transitions. Word has length 214 [2024-11-28 03:39:30,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:39:30,693 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 265 transitions. [2024-11-28 03:39:30,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-28 03:39:30,695 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 265 transitions. [2024-11-28 03:39:30,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-28 03:39:30,704 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:39:30,705 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:39:30,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:39:30,705 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:39:30,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:39:30,706 INFO L85 PathProgramCache]: Analyzing trace with hash -2016827840, now seen corresponding path program 1 times [2024-11-28 03:39:30,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:39:30,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077260386] [2024-11-28 03:39:30,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:39:30,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:39:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:39:32,113 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-28 03:39:32,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:39:32,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077260386] [2024-11-28 03:39:32,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077260386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:39:32,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:39:32,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:39:32,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166027573] [2024-11-28 03:39:32,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:39:32,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:39:32,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:39:32,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:39:32,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:39:32,120 INFO L87 Difference]: Start difference. First operand 172 states and 265 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-28 03:39:32,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:39:32,729 INFO L93 Difference]: Finished difference Result 302 states and 460 transitions. [2024-11-28 03:39:32,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:39:32,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 215 [2024-11-28 03:39:32,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:39:32,733 INFO L225 Difference]: With dead ends: 302 [2024-11-28 03:39:32,734 INFO L226 Difference]: Without dead ends: 193 [2024-11-28 03:39:32,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 03:39:32,735 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 93 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:39:32,736 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 360 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:39:32,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-28 03:39:32,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 178. [2024-11-28 03:39:32,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 107 states have (on average 1.2710280373831775) internal successors, (136), 107 states have internal predecessors, (136), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-28 03:39:32,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 272 transitions. [2024-11-28 03:39:32,790 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 272 transitions. Word has length 215 [2024-11-28 03:39:32,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:39:32,791 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 272 transitions. [2024-11-28 03:39:32,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-28 03:39:32,792 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 272 transitions. [2024-11-28 03:39:32,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-28 03:39:32,796 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:39:32,797 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:39:32,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:39:32,797 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:39:32,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:39:32,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1625840135, now seen corresponding path program 1 times [2024-11-28 03:39:32,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:39:32,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205678716] [2024-11-28 03:39:32,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:39:32,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:39:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:39:33,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-28 03:39:33,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:39:33,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205678716] [2024-11-28 03:39:33,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205678716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:39:33,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:39:33,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:39:33,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446399327] [2024-11-28 03:39:33,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:39:33,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:39:33,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:39:33,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:39:33,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:39:33,303 INFO L87 Difference]: Start difference. First operand 178 states and 272 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-28 03:39:33,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:39:33,778 INFO L93 Difference]: Finished difference Result 303 states and 458 transitions. [2024-11-28 03:39:33,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:39:33,779 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 216 [2024-11-28 03:39:33,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:39:33,782 INFO L225 Difference]: With dead ends: 303 [2024-11-28 03:39:33,782 INFO L226 Difference]: Without dead ends: 188 [2024-11-28 03:39:33,783 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 03:39:33,784 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 90 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:39:33,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 370 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:39:33,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-28 03:39:33,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 179. [2024-11-28 03:39:33,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 108 states have (on average 1.2592592592592593) internal successors, (136), 108 states have internal predecessors, (136), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-28 03:39:33,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 272 transitions. [2024-11-28 03:39:33,887 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 272 transitions. Word has length 216 [2024-11-28 03:39:33,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:39:33,891 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 272 transitions. [2024-11-28 03:39:33,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-28 03:39:33,891 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 272 transitions. [2024-11-28 03:39:33,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-28 03:39:33,894 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:39:33,895 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:39:33,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:39:33,895 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:39:33,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:39:33,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1976243485, now seen corresponding path program 1 times [2024-11-28 03:39:33,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:39:33,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584537031] [2024-11-28 03:39:33,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:39:33,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:39:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:39:34,879 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-28 03:39:34,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:39:34,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584537031] [2024-11-28 03:39:34,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584537031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:39:34,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:39:34,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:39:34,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782249103] [2024-11-28 03:39:34,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:39:34,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:39:34,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:39:34,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:39:34,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:39:34,882 INFO L87 Difference]: Start difference. First operand 179 states and 272 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, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-28 03:39:35,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:39:35,599 INFO L93 Difference]: Finished difference Result 299 states and 454 transitions. [2024-11-28 03:39:35,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:39:35,599 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, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 217 [2024-11-28 03:39:35,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:39:35,602 INFO L225 Difference]: With dead ends: 299 [2024-11-28 03:39:35,602 INFO L226 Difference]: Without dead ends: 188 [2024-11-28 03:39:35,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:39:35,604 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 83 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:39:35,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 417 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:39:35,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-28 03:39:35,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 179. [2024-11-28 03:39:35,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 108 states have (on average 1.25) internal successors, (135), 108 states have internal predecessors, (135), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-28 03:39:35,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 271 transitions. [2024-11-28 03:39:35,687 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 271 transitions. Word has length 217 [2024-11-28 03:39:35,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:39:35,688 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 271 transitions. [2024-11-28 03:39:35,688 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, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-28 03:39:35,688 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 271 transitions. [2024-11-28 03:39:35,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-28 03:39:35,691 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:39:35,692 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:39:35,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:39:35,692 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:39:35,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:39:35,693 INFO L85 PathProgramCache]: Analyzing trace with hash 629780069, now seen corresponding path program 1 times [2024-11-28 03:39:35,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:39:35,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923067977] [2024-11-28 03:39:35,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:39:35,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:39:35,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:39:42,536 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-28 03:39:42,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:39:42,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923067977] [2024-11-28 03:39:42,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923067977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:39:42,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:39:42,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:39:42,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489330876] [2024-11-28 03:39:42,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:39:42,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:39:42,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:39:42,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:39:42,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:39:42,543 INFO L87 Difference]: Start difference. First operand 179 states and 271 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-28 03:39:45,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:39:45,073 INFO L93 Difference]: Finished difference Result 367 states and 530 transitions. [2024-11-28 03:39:45,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:39:45,073 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 217 [2024-11-28 03:39:45,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:39:45,082 INFO L225 Difference]: With dead ends: 367 [2024-11-28 03:39:45,082 INFO L226 Difference]: Without dead ends: 265 [2024-11-28 03:39:45,083 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:39:45,083 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 429 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:39:45,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 568 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 03:39:45,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-28 03:39:45,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 188. [2024-11-28 03:39:45,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 117 states have (on average 1.2478632478632479) internal successors, (146), 117 states have internal predecessors, (146), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-28 03:39:45,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 282 transitions. [2024-11-28 03:39:45,137 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 282 transitions. Word has length 217 [2024-11-28 03:39:45,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:39:45,138 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 282 transitions. [2024-11-28 03:39:45,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-28 03:39:45,139 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 282 transitions. [2024-11-28 03:39:45,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-28 03:39:45,144 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:39:45,144 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:39:45,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:39:45,145 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:39:45,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:39:45,146 INFO L85 PathProgramCache]: Analyzing trace with hash 887945507, now seen corresponding path program 1 times [2024-11-28 03:39:45,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:39:45,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820779704] [2024-11-28 03:39:45,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:39:45,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:39:45,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat