./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.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_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/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_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/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_d425717b-f018-4f20-b58a-39a105c9eebc/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 e4734516ebdc79a9f036bc9e9f726759934a87ca68d15ce0ae4878f15df0c2c4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:06:10,888 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:06:10,988 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:06:10,996 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:06:10,997 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:06:11,028 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:06:11,030 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:06:11,030 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:06:11,031 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:06:11,031 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:06:11,032 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:06:11,032 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:06:11,033 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:06:11,033 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:06:11,033 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:06:11,034 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:06:11,034 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:06:11,034 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:06:11,034 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:06:11,035 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:06:11,035 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:06:11,035 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:06:11,035 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:06:11,035 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:06:11,035 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:06:11,035 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:06:11,036 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:06:11,036 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:06:11,036 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:06:11,036 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:06:11,036 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:06:11,036 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:06:11,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:06:11,037 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:06:11,038 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:06:11,038 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:06:11,038 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:06:11,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:06:11,038 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:06:11,038 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:06:11,038 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:06:11,038 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:06:11,039 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:06:11,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:06:11,039 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:06:11,039 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:06:11,039 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:06:11,039 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:06:11,039 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_d425717b-f018-4f20-b58a-39a105c9eebc/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 -> e4734516ebdc79a9f036bc9e9f726759934a87ca68d15ce0ae4878f15df0c2c4 [2024-11-28 03:06:11,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:06:11,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:06:11,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:06:11,387 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:06:11,388 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:06:11,389 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.i [2024-11-28 03:06:14,337 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/data/d0dae1e7f/feff58e6e065433181353aae5a413e39/FLAG0a448e255 [2024-11-28 03:06:14,692 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:06:14,693 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.i [2024-11-28 03:06:14,704 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/data/d0dae1e7f/feff58e6e065433181353aae5a413e39/FLAG0a448e255 [2024-11-28 03:06:14,726 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/data/d0dae1e7f/feff58e6e065433181353aae5a413e39 [2024-11-28 03:06:14,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:06:14,730 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:06:14,731 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:06:14,733 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:06:14,738 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:06:14,739 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:06:14" (1/1) ... [2024-11-28 03:06:14,740 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a44f1bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:14, skipping insertion in model container [2024-11-28 03:06:14,742 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:06:14" (1/1) ... [2024-11-28 03:06:14,766 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:06:14,943 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_d425717b-f018-4f20-b58a-39a105c9eebc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.i[916,929] [2024-11-28 03:06:15,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:06:15,063 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:06:15,074 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_d425717b-f018-4f20-b58a-39a105c9eebc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.i[916,929] [2024-11-28 03:06:15,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:06:15,176 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:06:15,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:15 WrapperNode [2024-11-28 03:06:15,177 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:06:15,177 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:06:15,178 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:06:15,178 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:06:15,188 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:15" (1/1) ... [2024-11-28 03:06:15,197 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:15" (1/1) ... [2024-11-28 03:06:15,233 INFO L138 Inliner]: procedures = 26, calls = 155, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 432 [2024-11-28 03:06:15,234 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:06:15,234 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:06:15,234 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:06:15,234 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:06:15,247 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:15" (1/1) ... [2024-11-28 03:06:15,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:15" (1/1) ... [2024-11-28 03:06:15,251 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:15" (1/1) ... [2024-11-28 03:06:15,277 INFO L175 MemorySlicer]: Split 123 memory accesses to 5 slices as follows [2, 16, 70, 11, 24]. 57 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 2, 6, 1, 3]. The 16 writes are split as follows [0, 2, 8, 1, 5]. [2024-11-28 03:06:15,277 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:15" (1/1) ... [2024-11-28 03:06:15,277 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:15" (1/1) ... [2024-11-28 03:06:15,294 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:15" (1/1) ... [2024-11-28 03:06:15,295 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:15" (1/1) ... [2024-11-28 03:06:15,299 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:15" (1/1) ... [2024-11-28 03:06:15,302 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:15" (1/1) ... [2024-11-28 03:06:15,303 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:15" (1/1) ... [2024-11-28 03:06:15,307 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:06:15,308 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:06:15,308 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:06:15,308 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:06:15,309 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:15" (1/1) ... [2024-11-28 03:06:15,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:06:15,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:15,350 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:15,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:06:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:06:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:06:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 03:06:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 03:06:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 03:06:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 03:06:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:06:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 03:06:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 03:06:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 03:06:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 03:06:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:06:15,384 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:06:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:06:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:06:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 03:06:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 03:06:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 03:06:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:06:15,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:06:15,493 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:06:15,495 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:06:16,119 INFO L? ?]: Removed 110 outVars from TransFormulas that were not future-live. [2024-11-28 03:06:16,120 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:06:16,133 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:06:16,136 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:06:16,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:16 BoogieIcfgContainer [2024-11-28 03:06:16,137 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:06:16,139 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:06:16,140 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:06:16,147 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:06:16,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:06:14" (1/3) ... [2024-11-28 03:06:16,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b58bff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:06:16, skipping insertion in model container [2024-11-28 03:06:16,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:15" (2/3) ... [2024-11-28 03:06:16,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b58bff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:06:16, skipping insertion in model container [2024-11-28 03:06:16,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:16" (3/3) ... [2024-11-28 03:06:16,149 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-27.i [2024-11-28 03:06:16,164 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:06:16,165 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-27.i that has 2 procedures, 94 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:06:16,253 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:06:16,271 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;@6abcab64, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:06:16,272 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:06:16,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 75 states have internal predecessors, (102), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 03:06:16,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-28 03:06:16,292 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:16,293 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:16,293 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:16,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:16,300 INFO L85 PathProgramCache]: Analyzing trace with hash -599042020, now seen corresponding path program 1 times [2024-11-28 03:06:16,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:16,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724612725] [2024-11-28 03:06:16,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:16,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:16,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:16,730 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-28 03:06:16,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:16,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724612725] [2024-11-28 03:06:16,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724612725] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:06:16,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725840276] [2024-11-28 03:06:16,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:16,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:06:16,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:16,738 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:06:16,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:06:17,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:17,040 INFO L256 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:06:17,056 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:17,091 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-28 03:06:17,092 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:06:17,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725840276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:17,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:06:17,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:06:17,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821888368] [2024-11-28 03:06:17,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:17,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:06:17,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:17,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:06:17,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:06:17,124 INFO L87 Difference]: Start difference. First operand has 94 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 75 states have internal predecessors, (102), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:06:17,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:17,151 INFO L93 Difference]: Finished difference Result 181 states and 283 transitions. [2024-11-28 03:06:17,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:06:17,153 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2024-11-28 03:06:17,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:17,159 INFO L225 Difference]: With dead ends: 181 [2024-11-28 03:06:17,159 INFO L226 Difference]: Without dead ends: 90 [2024-11-28 03:06:17,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 132 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 03:06:17,165 INFO L435 NwaCegarLoop]: 129 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, 129 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 03:06:17,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:06:17,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-28 03:06:17,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-28 03:06:17,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 71 states have (on average 1.3380281690140845) internal successors, (95), 71 states have internal predecessors, (95), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 03:06:17,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2024-11-28 03:06:17,212 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 131 [2024-11-28 03:06:17,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:17,213 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2024-11-28 03:06:17,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:06:17,213 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2024-11-28 03:06:17,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-28 03:06:17,216 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:17,216 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:17,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:06:17,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:06:17,420 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:17,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:17,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1244012870, now seen corresponding path program 1 times [2024-11-28 03:06:17,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:17,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643990459] [2024-11-28 03:06:17,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:17,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:17,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:19,993 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:06:19,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:19,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643990459] [2024-11-28 03:06:19,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643990459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:19,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:19,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:06:19,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288302581] [2024-11-28 03:06:19,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:19,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:06:19,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:19,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:06:19,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:06:19,999 INFO L87 Difference]: Start difference. First operand 90 states and 129 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:06:20,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:20,474 INFO L93 Difference]: Finished difference Result 232 states and 332 transitions. [2024-11-28 03:06:20,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:06:20,478 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2024-11-28 03:06:20,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:20,480 INFO L225 Difference]: With dead ends: 232 [2024-11-28 03:06:20,481 INFO L226 Difference]: Without dead ends: 145 [2024-11-28 03:06:20,481 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:06:20,484 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 69 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:20,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 659 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:06:20,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-28 03:06:20,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 142. [2024-11-28 03:06:20,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 116 states have (on average 1.353448275862069) internal successors, (157), 117 states have internal predecessors, (157), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 03:06:20,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 203 transitions. [2024-11-28 03:06:20,520 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 203 transitions. Word has length 131 [2024-11-28 03:06:20,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:20,523 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 203 transitions. [2024-11-28 03:06:20,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:06:20,523 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 203 transitions. [2024-11-28 03:06:20,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 03:06:20,525 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:20,525 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:20,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:06:20,528 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:20,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:20,530 INFO L85 PathProgramCache]: Analyzing trace with hash -828522667, now seen corresponding path program 1 times [2024-11-28 03:06:20,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:20,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596201100] [2024-11-28 03:06:20,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:20,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:21,627 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:06:21,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:21,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596201100] [2024-11-28 03:06:21,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596201100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:21,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:21,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:06:21,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60294882] [2024-11-28 03:06:21,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:21,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:06:21,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:21,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:06:21,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:06:21,629 INFO L87 Difference]: Start difference. First operand 142 states and 203 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:06:22,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:22,091 INFO L93 Difference]: Finished difference Result 362 states and 520 transitions. [2024-11-28 03:06:22,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:06:22,092 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-11-28 03:06:22,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:22,099 INFO L225 Difference]: With dead ends: 362 [2024-11-28 03:06:22,099 INFO L226 Difference]: Without dead ends: 223 [2024-11-28 03:06:22,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:06:22,101 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 110 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:22,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 742 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:06:22,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-28 03:06:22,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 219. [2024-11-28 03:06:22,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 175 states have (on average 1.3371428571428572) internal successors, (234), 176 states have internal predecessors, (234), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-28 03:06:22,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 314 transitions. [2024-11-28 03:06:22,162 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 314 transitions. Word has length 133 [2024-11-28 03:06:22,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:22,162 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 314 transitions. [2024-11-28 03:06:22,163 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:06:22,163 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 314 transitions. [2024-11-28 03:06:22,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 03:06:22,169 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:22,169 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:22,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:06:22,169 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:22,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:22,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1503590059, now seen corresponding path program 1 times [2024-11-28 03:06:22,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:22,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035522614] [2024-11-28 03:06:22,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:22,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:22,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:23,192 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:06:23,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:23,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035522614] [2024-11-28 03:06:23,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035522614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:23,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:23,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:06:23,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981420362] [2024-11-28 03:06:23,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:23,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:06:23,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:23,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:06:23,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:06:23,197 INFO L87 Difference]: Start difference. First operand 219 states and 314 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:06:23,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:23,635 INFO L93 Difference]: Finished difference Result 411 states and 587 transitions. [2024-11-28 03:06:23,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:06:23,636 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-11-28 03:06:23,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:23,640 INFO L225 Difference]: With dead ends: 411 [2024-11-28 03:06:23,641 INFO L226 Difference]: Without dead ends: 179 [2024-11-28 03:06:23,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:06:23,646 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 113 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:23,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 537 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:06:23,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-28 03:06:23,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 175. [2024-11-28 03:06:23,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 137 states have (on average 1.2992700729927007) internal successors, (178), 137 states have internal predecessors, (178), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 03:06:23,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 246 transitions. [2024-11-28 03:06:23,688 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 246 transitions. Word has length 133 [2024-11-28 03:06:23,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:23,689 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 246 transitions. [2024-11-28 03:06:23,689 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:06:23,692 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 246 transitions. [2024-11-28 03:06:23,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 03:06:23,694 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:23,695 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:23,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:06:23,695 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:23,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:23,696 INFO L85 PathProgramCache]: Analyzing trace with hash -252020168, now seen corresponding path program 1 times [2024-11-28 03:06:23,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:23,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803000] [2024-11-28 03:06:23,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:23,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:23,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:24,245 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:06:24,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:24,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803000] [2024-11-28 03:06:24,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:24,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:24,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:06:24,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710540627] [2024-11-28 03:06:24,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:24,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:06:24,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:24,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:06:24,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:06:24,248 INFO L87 Difference]: Start difference. First operand 175 states and 246 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:06:24,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:24,436 INFO L93 Difference]: Finished difference Result 451 states and 633 transitions. [2024-11-28 03:06:24,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:06:24,436 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 134 [2024-11-28 03:06:24,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:24,441 INFO L225 Difference]: With dead ends: 451 [2024-11-28 03:06:24,441 INFO L226 Difference]: Without dead ends: 279 [2024-11-28 03:06:24,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:06:24,443 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 76 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:24,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 690 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:06:24,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2024-11-28 03:06:24,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 275. [2024-11-28 03:06:24,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 231 states have (on average 1.3376623376623376) internal successors, (309), 233 states have internal predecessors, (309), 38 states have call successors, (38), 5 states have call predecessors, (38), 5 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 03:06:24,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 385 transitions. [2024-11-28 03:06:24,494 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 385 transitions. Word has length 134 [2024-11-28 03:06:24,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:24,495 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 385 transitions. [2024-11-28 03:06:24,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:06:24,496 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 385 transitions. [2024-11-28 03:06:24,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 03:06:24,500 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:24,500 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:24,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:06:24,500 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:24,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:24,501 INFO L85 PathProgramCache]: Analyzing trace with hash -314059782, now seen corresponding path program 1 times [2024-11-28 03:06:24,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:24,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269576808] [2024-11-28 03:06:24,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:24,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:24,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:25,054 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:06:25,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:25,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269576808] [2024-11-28 03:06:25,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269576808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:25,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:25,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:06:25,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425588821] [2024-11-28 03:06:25,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:25,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:06:25,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:25,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:06:25,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:06:25,057 INFO L87 Difference]: Start difference. First operand 275 states and 385 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:06:25,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:25,225 INFO L93 Difference]: Finished difference Result 657 states and 911 transitions. [2024-11-28 03:06:25,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:06:25,230 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 134 [2024-11-28 03:06:25,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:25,234 INFO L225 Difference]: With dead ends: 657 [2024-11-28 03:06:25,236 INFO L226 Difference]: Without dead ends: 385 [2024-11-28 03:06:25,237 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:06:25,238 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 67 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:25,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 754 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:06:25,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-11-28 03:06:25,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 215. [2024-11-28 03:06:25,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 175 states have (on average 1.2971428571428572) internal successors, (227), 175 states have internal predecessors, (227), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 03:06:25,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 295 transitions. [2024-11-28 03:06:25,276 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 295 transitions. Word has length 134 [2024-11-28 03:06:25,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:25,277 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 295 transitions. [2024-11-28 03:06:25,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:06:25,278 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 295 transitions. [2024-11-28 03:06:25,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 03:06:25,279 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:25,279 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:25,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:06:25,280 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:25,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:25,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1315430834, now seen corresponding path program 1 times [2024-11-28 03:06:25,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:25,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821381223] [2024-11-28 03:06:25,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:25,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:26,898 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:06:26,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:26,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821381223] [2024-11-28 03:06:26,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821381223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:26,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:26,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:06:26,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243698326] [2024-11-28 03:06:26,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:26,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:06:26,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:26,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:06:26,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:06:26,902 INFO L87 Difference]: Start difference. First operand 215 states and 295 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:06:27,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:27,521 INFO L93 Difference]: Finished difference Result 493 states and 674 transitions. [2024-11-28 03:06:27,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:06:27,522 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-28 03:06:27,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:27,524 INFO L225 Difference]: With dead ends: 493 [2024-11-28 03:06:27,524 INFO L226 Difference]: Without dead ends: 281 [2024-11-28 03:06:27,525 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:06:27,525 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 71 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:27,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1076 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:06:27,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-11-28 03:06:27,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 278. [2024-11-28 03:06:27,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 230 states have (on average 1.3) internal successors, (299), 231 states have internal predecessors, (299), 40 states have call successors, (40), 7 states have call predecessors, (40), 7 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-28 03:06:27,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 379 transitions. [2024-11-28 03:06:27,551 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 379 transitions. Word has length 135 [2024-11-28 03:06:27,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:27,552 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 379 transitions. [2024-11-28 03:06:27,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:06:27,552 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 379 transitions. [2024-11-28 03:06:27,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 03:06:27,554 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:27,554 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:27,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:06:27,554 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:27,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:27,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1573596272, now seen corresponding path program 1 times [2024-11-28 03:06:27,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:27,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502699923] [2024-11-28 03:06:27,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:27,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:28,713 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:06:28,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:28,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502699923] [2024-11-28 03:06:28,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502699923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:28,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:28,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:06:28,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685348175] [2024-11-28 03:06:28,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:28,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:06:28,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:28,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:06:28,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:06:28,716 INFO L87 Difference]: Start difference. First operand 278 states and 379 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:06:29,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:29,144 INFO L93 Difference]: Finished difference Result 556 states and 755 transitions. [2024-11-28 03:06:29,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:06:29,145 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-11-28 03:06:29,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:29,147 INFO L225 Difference]: With dead ends: 556 [2024-11-28 03:06:29,150 INFO L226 Difference]: Without dead ends: 281 [2024-11-28 03:06:29,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:06:29,151 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 59 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:29,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 935 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:06:29,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-11-28 03:06:29,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 279. [2024-11-28 03:06:29,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 230 states have (on average 1.291304347826087) internal successors, (297), 231 states have internal predecessors, (297), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-28 03:06:29,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 377 transitions. [2024-11-28 03:06:29,202 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 377 transitions. Word has length 135 [2024-11-28 03:06:29,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:29,203 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 377 transitions. [2024-11-28 03:06:29,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:06:29,204 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 377 transitions. [2024-11-28 03:06:29,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 03:06:29,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:29,207 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:29,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:06:29,207 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:29,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:29,208 INFO L85 PathProgramCache]: Analyzing trace with hash 497782384, now seen corresponding path program 1 times [2024-11-28 03:06:29,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:29,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355620098] [2024-11-28 03:06:29,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:29,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:30,385 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:06:30,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:30,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355620098] [2024-11-28 03:06:30,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355620098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:30,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:30,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:06:30,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954716760] [2024-11-28 03:06:30,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:30,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:06:30,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:30,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:06:30,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:06:30,387 INFO L87 Difference]: Start difference. First operand 279 states and 377 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:06:30,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:30,761 INFO L93 Difference]: Finished difference Result 561 states and 755 transitions. [2024-11-28 03:06:30,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:06:30,762 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-11-28 03:06:30,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:30,764 INFO L225 Difference]: With dead ends: 561 [2024-11-28 03:06:30,764 INFO L226 Difference]: Without dead ends: 285 [2024-11-28 03:06:30,766 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:06:30,767 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 62 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:30,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 654 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:06:30,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-28 03:06:30,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 283. [2024-11-28 03:06:30,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 233 states have (on average 1.2832618025751072) internal successors, (299), 234 states have internal predecessors, (299), 40 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-28 03:06:30,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 379 transitions. [2024-11-28 03:06:30,806 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 379 transitions. Word has length 135 [2024-11-28 03:06:30,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:30,807 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 379 transitions. [2024-11-28 03:06:30,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:06:30,807 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 379 transitions. [2024-11-28 03:06:30,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 03:06:30,808 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:30,808 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:30,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:06:30,809 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:30,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:30,809 INFO L85 PathProgramCache]: Analyzing trace with hash 755947822, now seen corresponding path program 1 times [2024-11-28 03:06:30,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:30,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724564940] [2024-11-28 03:06:30,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:30,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:31,873 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:06:31,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:31,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724564940] [2024-11-28 03:06:31,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724564940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:31,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:31,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:06:31,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824878308] [2024-11-28 03:06:31,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:31,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:06:31,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:31,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:06:31,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:06:31,876 INFO L87 Difference]: Start difference. First operand 283 states and 379 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:06:32,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:32,451 INFO L93 Difference]: Finished difference Result 583 states and 776 transitions. [2024-11-28 03:06:32,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:06:32,451 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-28 03:06:32,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:32,454 INFO L225 Difference]: With dead ends: 583 [2024-11-28 03:06:32,454 INFO L226 Difference]: Without dead ends: 303 [2024-11-28 03:06:32,455 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:06:32,455 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 61 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:32,456 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1247 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:06:32,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-28 03:06:32,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 283. [2024-11-28 03:06:32,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 233 states have (on average 1.2789699570815452) internal successors, (298), 234 states have internal predecessors, (298), 40 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-28 03:06:32,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 378 transitions. [2024-11-28 03:06:32,497 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 378 transitions. Word has length 135 [2024-11-28 03:06:32,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:32,498 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 378 transitions. [2024-11-28 03:06:32,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:06:32,498 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 378 transitions. [2024-11-28 03:06:32,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 03:06:32,504 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:32,504 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:32,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:06:32,504 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:32,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:32,505 INFO L85 PathProgramCache]: Analyzing trace with hash -697675202, now seen corresponding path program 1 times [2024-11-28 03:06:32,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:32,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886464939] [2024-11-28 03:06:32,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:32,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:32,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:32,963 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:06:32,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:32,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886464939] [2024-11-28 03:06:32,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886464939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:32,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:32,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:06:32,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109500022] [2024-11-28 03:06:32,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:32,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:06:32,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:32,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:06:32,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:06:32,966 INFO L87 Difference]: Start difference. First operand 283 states and 378 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:06:33,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:33,155 INFO L93 Difference]: Finished difference Result 703 states and 937 transitions. [2024-11-28 03:06:33,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:06:33,156 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-11-28 03:06:33,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:33,165 INFO L225 Difference]: With dead ends: 703 [2024-11-28 03:06:33,165 INFO L226 Difference]: Without dead ends: 423 [2024-11-28 03:06:33,168 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:06:33,168 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 119 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:33,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 464 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:06:33,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-28 03:06:33,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 328. [2024-11-28 03:06:33,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 278 states have (on average 1.2661870503597121) internal successors, (352), 279 states have internal predecessors, (352), 40 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-28 03:06:33,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 432 transitions. [2024-11-28 03:06:33,223 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 432 transitions. Word has length 135 [2024-11-28 03:06:33,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:33,224 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 432 transitions. [2024-11-28 03:06:33,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:06:33,224 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 432 transitions. [2024-11-28 03:06:33,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 03:06:33,228 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:33,228 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:33,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:06:33,229 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:33,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:33,229 INFO L85 PathProgramCache]: Analyzing trace with hash 3389376, now seen corresponding path program 1 times [2024-11-28 03:06:33,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:33,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374809101] [2024-11-28 03:06:33,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:33,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:34,489 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:06:34,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:34,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374809101] [2024-11-28 03:06:34,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374809101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:34,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:34,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:06:34,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137736752] [2024-11-28 03:06:34,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:34,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:06:34,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:34,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:06:34,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:06:34,491 INFO L87 Difference]: Start difference. First operand 328 states and 432 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:06:35,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:35,214 INFO L93 Difference]: Finished difference Result 863 states and 1130 transitions. [2024-11-28 03:06:35,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:06:35,215 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-11-28 03:06:35,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:35,218 INFO L225 Difference]: With dead ends: 863 [2024-11-28 03:06:35,219 INFO L226 Difference]: Without dead ends: 538 [2024-11-28 03:06:35,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:06:35,221 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 70 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:35,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 883 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:06:35,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-28 03:06:35,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 534. [2024-11-28 03:06:35,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 453 states have (on average 1.2538631346578366) internal successors, (568), 457 states have internal predecessors, (568), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 03:06:35,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 692 transitions. [2024-11-28 03:06:35,291 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 692 transitions. Word has length 135 [2024-11-28 03:06:35,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:35,291 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 692 transitions. [2024-11-28 03:06:35,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:06:35,292 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 692 transitions. [2024-11-28 03:06:35,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 03:06:35,294 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:35,295 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:35,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:06:35,295 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:35,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:35,295 INFO L85 PathProgramCache]: Analyzing trace with hash 65428990, now seen corresponding path program 1 times [2024-11-28 03:06:35,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:35,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847711298] [2024-11-28 03:06:35,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:35,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:35,564 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:06:35,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:35,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847711298] [2024-11-28 03:06:35,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847711298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:35,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:35,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:06:35,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438064004] [2024-11-28 03:06:35,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:35,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:06:35,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:35,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:06:35,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:06:35,566 INFO L87 Difference]: Start difference. First operand 534 states and 692 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:06:35,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:35,711 INFO L93 Difference]: Finished difference Result 1060 states and 1372 transitions. [2024-11-28 03:06:35,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:06:35,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-28 03:06:35,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:35,716 INFO L225 Difference]: With dead ends: 1060 [2024-11-28 03:06:35,720 INFO L226 Difference]: Without dead ends: 529 [2024-11-28 03:06:35,721 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:06:35,722 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 94 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:35,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 458 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:06:35,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2024-11-28 03:06:35,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 525. [2024-11-28 03:06:35,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 444 states have (on average 1.2454954954954955) internal successors, (553), 448 states have internal predecessors, (553), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 03:06:35,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 677 transitions. [2024-11-28 03:06:35,804 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 677 transitions. Word has length 135 [2024-11-28 03:06:35,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:35,805 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 677 transitions. [2024-11-28 03:06:35,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:06:35,805 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 677 transitions. [2024-11-28 03:06:35,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 03:06:35,808 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:35,808 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:35,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:06:35,809 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:35,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:35,809 INFO L85 PathProgramCache]: Analyzing trace with hash -568417833, now seen corresponding path program 1 times [2024-11-28 03:06:35,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:35,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741343110] [2024-11-28 03:06:35,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:35,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:36,991 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:06:36,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:36,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741343110] [2024-11-28 03:06:36,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741343110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:36,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:36,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:06:36,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301149604] [2024-11-28 03:06:36,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:36,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:06:36,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:36,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:06:36,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:06:36,995 INFO L87 Difference]: Start difference. First operand 525 states and 677 transitions. Second operand has 12 states, 10 states have (on average 5.7) internal successors, (57), 12 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:06:38,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:38,034 INFO L93 Difference]: Finished difference Result 1601 states and 2045 transitions. [2024-11-28 03:06:38,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:06:38,035 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.7) internal successors, (57), 12 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) Word has length 139 [2024-11-28 03:06:38,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:38,041 INFO L225 Difference]: With dead ends: 1601 [2024-11-28 03:06:38,041 INFO L226 Difference]: Without dead ends: 1079 [2024-11-28 03:06:38,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:06:38,043 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 325 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:38,044 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 981 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:06:38,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2024-11-28 03:06:38,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 619. [2024-11-28 03:06:38,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 538 states have (on average 1.258364312267658) internal successors, (677), 542 states have internal predecessors, (677), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 03:06:38,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 801 transitions. [2024-11-28 03:06:38,135 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 801 transitions. Word has length 139 [2024-11-28 03:06:38,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:38,136 INFO L471 AbstractCegarLoop]: Abstraction has 619 states and 801 transitions. [2024-11-28 03:06:38,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.7) internal successors, (57), 12 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:06:38,136 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 801 transitions. [2024-11-28 03:06:38,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 03:06:38,138 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:38,138 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:38,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:06:38,139 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:38,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:38,139 INFO L85 PathProgramCache]: Analyzing trace with hash 111640537, now seen corresponding path program 1 times [2024-11-28 03:06:38,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:38,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852385387] [2024-11-28 03:06:38,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:38,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:39,421 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:06:39,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:39,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852385387] [2024-11-28 03:06:39,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852385387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:39,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:39,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:06:39,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483560600] [2024-11-28 03:06:39,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:39,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:06:39,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:39,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:06:39,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:06:39,423 INFO L87 Difference]: Start difference. First operand 619 states and 801 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:06:40,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:40,131 INFO L93 Difference]: Finished difference Result 1503 states and 1934 transitions. [2024-11-28 03:06:40,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:06:40,131 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-28 03:06:40,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:40,136 INFO L225 Difference]: With dead ends: 1503 [2024-11-28 03:06:40,136 INFO L226 Difference]: Without dead ends: 887 [2024-11-28 03:06:40,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:06:40,139 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 66 mSDsluCounter, 1009 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:40,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1145 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:06:40,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-11-28 03:06:40,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 729. [2024-11-28 03:06:40,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 648 states have (on average 1.2546296296296295) internal successors, (813), 652 states have internal predecessors, (813), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 03:06:40,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 937 transitions. [2024-11-28 03:06:40,222 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 937 transitions. Word has length 139 [2024-11-28 03:06:40,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:40,223 INFO L471 AbstractCegarLoop]: Abstraction has 729 states and 937 transitions. [2024-11-28 03:06:40,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:06:40,223 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 937 transitions. [2024-11-28 03:06:40,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 03:06:40,225 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:40,226 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:40,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:06:40,226 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:40,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:40,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1376130766, now seen corresponding path program 1 times [2024-11-28 03:06:40,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:40,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231401502] [2024-11-28 03:06:40,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:40,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:40,604 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:06:40,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:40,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231401502] [2024-11-28 03:06:40,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231401502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:40,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:40,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:06:40,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213376937] [2024-11-28 03:06:40,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:40,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:06:40,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:40,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:06:40,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:06:40,607 INFO L87 Difference]: Start difference. First operand 729 states and 937 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:06:40,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:40,803 INFO L93 Difference]: Finished difference Result 1576 states and 2029 transitions. [2024-11-28 03:06:40,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:06:40,804 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-28 03:06:40,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:40,809 INFO L225 Difference]: With dead ends: 1576 [2024-11-28 03:06:40,809 INFO L226 Difference]: Without dead ends: 850 [2024-11-28 03:06:40,810 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:06:40,811 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 103 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:40,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 459 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:06:40,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-11-28 03:06:40,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 762. [2024-11-28 03:06:40,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 681 states have (on average 1.2555066079295154) internal successors, (855), 685 states have internal predecessors, (855), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 03:06:40,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 979 transitions. [2024-11-28 03:06:40,895 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 979 transitions. Word has length 139 [2024-11-28 03:06:40,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:40,896 INFO L471 AbstractCegarLoop]: Abstraction has 762 states and 979 transitions. [2024-11-28 03:06:40,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:06:40,896 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 979 transitions. [2024-11-28 03:06:40,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 03:06:40,900 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:40,900 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:40,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:06:40,900 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:40,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:40,901 INFO L85 PathProgramCache]: Analyzing trace with hash 2056189136, now seen corresponding path program 1 times [2024-11-28 03:06:40,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:40,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861998972] [2024-11-28 03:06:40,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:40,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:40,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:41,110 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-28 03:06:41,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:41,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861998972] [2024-11-28 03:06:41,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861998972] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:06:41,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864753843] [2024-11-28 03:06:41,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:41,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:06:41,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:41,113 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:06:41,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:06:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:41,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:06:41,363 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:41,449 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:06:41,449 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:06:41,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864753843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:41,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:06:41,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-11-28 03:06:41,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108935892] [2024-11-28 03:06:41,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:41,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:06:41,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:41,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:06:41,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:06:41,452 INFO L87 Difference]: Start difference. First operand 762 states and 979 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:06:41,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:41,582 INFO L93 Difference]: Finished difference Result 1542 states and 1982 transitions. [2024-11-28 03:06:41,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:06:41,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-28 03:06:41,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:41,588 INFO L225 Difference]: With dead ends: 1542 [2024-11-28 03:06:41,589 INFO L226 Difference]: Without dead ends: 783 [2024-11-28 03:06:41,590 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:06:41,592 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:41,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 606 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:06:41,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2024-11-28 03:06:41,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 771. [2024-11-28 03:06:41,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 690 states have (on average 1.2521739130434784) internal successors, (864), 694 states have internal predecessors, (864), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 03:06:41,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 988 transitions. [2024-11-28 03:06:41,671 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 988 transitions. Word has length 139 [2024-11-28 03:06:41,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:41,672 INFO L471 AbstractCegarLoop]: Abstraction has 771 states and 988 transitions. [2024-11-28 03:06:41,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:06:41,672 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 988 transitions. [2024-11-28 03:06:41,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 03:06:41,675 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:41,675 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:41,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:06:41,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 03:06:41,881 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:41,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:41,881 INFO L85 PathProgramCache]: Analyzing trace with hash -349563115, now seen corresponding path program 1 times [2024-11-28 03:06:41,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:41,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012239485] [2024-11-28 03:06:41,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:41,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:41,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:42,427 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:06:42,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:42,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012239485] [2024-11-28 03:06:42,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012239485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:42,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:42,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:06:42,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464735210] [2024-11-28 03:06:42,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:42,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:06:42,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:42,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:06:42,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:06:42,431 INFO L87 Difference]: Start difference. First operand 771 states and 988 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:06:42,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:42,862 INFO L93 Difference]: Finished difference Result 1703 states and 2170 transitions. [2024-11-28 03:06:42,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:06:42,862 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-28 03:06:42,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:42,869 INFO L225 Difference]: With dead ends: 1703 [2024-11-28 03:06:42,869 INFO L226 Difference]: Without dead ends: 935 [2024-11-28 03:06:42,871 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:06:42,871 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 61 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:42,872 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 462 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:06:42,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2024-11-28 03:06:42,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 728. [2024-11-28 03:06:42,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 647 states have (on average 1.2457496136012365) internal successors, (806), 651 states have internal predecessors, (806), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 03:06:42,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 930 transitions. [2024-11-28 03:06:42,948 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 930 transitions. Word has length 139 [2024-11-28 03:06:42,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:42,949 INFO L471 AbstractCegarLoop]: Abstraction has 728 states and 930 transitions. [2024-11-28 03:06:42,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:06:42,949 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 930 transitions. [2024-11-28 03:06:42,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 03:06:42,952 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:42,952 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:42,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:06:42,952 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:42,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:42,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1803321429, now seen corresponding path program 1 times [2024-11-28 03:06:42,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:42,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001121935] [2024-11-28 03:06:42,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:42,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:44,053 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:06:44,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:44,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001121935] [2024-11-28 03:06:44,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001121935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:44,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:44,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:06:44,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385346295] [2024-11-28 03:06:44,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:44,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:06:44,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:44,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:06:44,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:06:44,057 INFO L87 Difference]: Start difference. First operand 728 states and 930 transitions. Second operand has 11 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:06:45,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:45,417 INFO L93 Difference]: Finished difference Result 2038 states and 2582 transitions. [2024-11-28 03:06:45,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:06:45,418 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-28 03:06:45,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:45,426 INFO L225 Difference]: With dead ends: 2038 [2024-11-28 03:06:45,426 INFO L226 Difference]: Without dead ends: 1313 [2024-11-28 03:06:45,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:06:45,429 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 326 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:45,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 1275 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:06:45,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2024-11-28 03:06:45,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 823. [2024-11-28 03:06:45,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 742 states have (on average 1.2547169811320755) internal successors, (931), 746 states have internal predecessors, (931), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 03:06:45,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1055 transitions. [2024-11-28 03:06:45,529 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1055 transitions. Word has length 139 [2024-11-28 03:06:45,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:45,530 INFO L471 AbstractCegarLoop]: Abstraction has 823 states and 1055 transitions. [2024-11-28 03:06:45,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:06:45,531 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1055 transitions. [2024-11-28 03:06:45,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 03:06:45,537 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:45,537 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:45,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 03:06:45,538 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:45,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:45,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1811587497, now seen corresponding path program 1 times [2024-11-28 03:06:45,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:45,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317576543] [2024-11-28 03:06:45,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:45,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:46,111 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:06:46,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:46,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317576543] [2024-11-28 03:06:46,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317576543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:46,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:46,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:06:46,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711619425] [2024-11-28 03:06:46,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:46,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:06:46,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:46,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:06:46,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:06:46,114 INFO L87 Difference]: Start difference. First operand 823 states and 1055 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:06:46,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:46,656 INFO L93 Difference]: Finished difference Result 1865 states and 2381 transitions. [2024-11-28 03:06:46,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:06:46,657 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-28 03:06:46,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:46,665 INFO L225 Difference]: With dead ends: 1865 [2024-11-28 03:06:46,665 INFO L226 Difference]: Without dead ends: 1044 [2024-11-28 03:06:46,667 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:06:46,669 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 59 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:46,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 768 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:06:46,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2024-11-28 03:06:46,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 910. [2024-11-28 03:06:46,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 829 states have (on average 1.253317249698432) internal successors, (1039), 833 states have internal predecessors, (1039), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 03:06:46,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1163 transitions. [2024-11-28 03:06:46,771 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1163 transitions. Word has length 139 [2024-11-28 03:06:46,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:46,772 INFO L471 AbstractCegarLoop]: Abstraction has 910 states and 1163 transitions. [2024-11-28 03:06:46,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:06:46,772 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1163 transitions. [2024-11-28 03:06:46,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 03:06:46,775 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:46,775 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:46,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:06:46,776 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:46,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:46,777 INFO L85 PathProgramCache]: Analyzing trace with hash 2022176147, now seen corresponding path program 1 times [2024-11-28 03:06:46,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:46,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781333941] [2024-11-28 03:06:46,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:46,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:47,243 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 18 proven. 30 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-28 03:06:47,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:47,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781333941] [2024-11-28 03:06:47,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781333941] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:06:47,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558999556] [2024-11-28 03:06:47,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:47,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:06:47,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:47,246 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:06:47,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:06:47,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:47,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 03:06:47,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:47,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-28 03:06:47,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-28 03:06:47,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2024-11-28 03:06:47,754 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 268 proven. 30 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2024-11-28 03:06:47,754 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:06:48,058 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 18 proven. 30 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-28 03:06:48,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558999556] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:06:48,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:06:48,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-28 03:06:48,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133166287] [2024-11-28 03:06:48,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:06:48,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:06:48,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:48,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:06:48,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:06:48,063 INFO L87 Difference]: Start difference. First operand 910 states and 1163 transitions. Second operand has 13 states, 10 states have (on average 8.5) internal successors, (85), 13 states have internal predecessors, (85), 6 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 3 states have call predecessors, (39), 6 states have call successors, (39) [2024-11-28 03:06:48,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:48,600 INFO L93 Difference]: Finished difference Result 1669 states and 2117 transitions. [2024-11-28 03:06:48,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:06:48,601 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 8.5) internal successors, (85), 13 states have internal predecessors, (85), 6 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 3 states have call predecessors, (39), 6 states have call successors, (39) Word has length 139 [2024-11-28 03:06:48,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:48,606 INFO L225 Difference]: With dead ends: 1669 [2024-11-28 03:06:48,606 INFO L226 Difference]: Without dead ends: 762 [2024-11-28 03:06:48,608 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:06:48,610 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 141 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:48,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 354 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:06:48,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2024-11-28 03:06:48,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 734. [2024-11-28 03:06:48,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 649 states have (on average 1.234206471494607) internal successors, (801), 653 states have internal predecessors, (801), 62 states have call successors, (62), 22 states have call predecessors, (62), 22 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 03:06:48,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 925 transitions. [2024-11-28 03:06:48,713 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 925 transitions. Word has length 139 [2024-11-28 03:06:48,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:48,714 INFO L471 AbstractCegarLoop]: Abstraction has 734 states and 925 transitions. [2024-11-28 03:06:48,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 8.5) internal successors, (85), 13 states have internal predecessors, (85), 6 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 3 states have call predecessors, (39), 6 states have call successors, (39) [2024-11-28 03:06:48,714 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 925 transitions. [2024-11-28 03:06:48,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 03:06:48,717 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:48,717 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:48,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:06:48,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d425717b-f018-4f20-b58a-39a105c9eebc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-28 03:06:48,921 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:48,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:48,922 INFO L85 PathProgramCache]: Analyzing trace with hash -597753543, now seen corresponding path program 1 times [2024-11-28 03:06:48,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:48,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637727409] [2024-11-28 03:06:48,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:48,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:52,344 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:06:52,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:52,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637727409] [2024-11-28 03:06:52,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637727409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:52,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:52,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-28 03:06:52,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64622992] [2024-11-28 03:06:52,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:52,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 03:06:52,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:52,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 03:06:52,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:06:52,349 INFO L87 Difference]: Start difference. First operand 734 states and 925 transitions. Second operand has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 19 states have internal predecessors, (57), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-28 03:06:57,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:57,253 INFO L93 Difference]: Finished difference Result 1859 states and 2329 transitions. [2024-11-28 03:06:57,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 03:06:57,255 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 19 states have internal predecessors, (57), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) Word has length 139 [2024-11-28 03:06:57,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:57,262 INFO L225 Difference]: With dead ends: 1859 [2024-11-28 03:06:57,263 INFO L226 Difference]: Without dead ends: 1128 [2024-11-28 03:06:57,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=242, Invalid=880, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 03:06:57,267 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 969 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:57,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 867 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 1142 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-28 03:06:57,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2024-11-28 03:06:57,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 817. [2024-11-28 03:06:57,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 720 states have (on average 1.2319444444444445) internal successors, (887), 726 states have internal predecessors, (887), 70 states have call successors, (70), 26 states have call predecessors, (70), 26 states have return successors, (70), 64 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 03:06:57,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1027 transitions. [2024-11-28 03:06:57,383 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1027 transitions. Word has length 139 [2024-11-28 03:06:57,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:57,384 INFO L471 AbstractCegarLoop]: Abstraction has 817 states and 1027 transitions. [2024-11-28 03:06:57,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 19 states have internal predecessors, (57), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-28 03:06:57,384 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1027 transitions. [2024-11-28 03:06:57,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 03:06:57,386 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:57,386 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:57,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 03:06:57,387 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:57,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:57,387 INFO L85 PathProgramCache]: Analyzing trace with hash 82304827, now seen corresponding path program 1 times [2024-11-28 03:06:57,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:57,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832946125] [2024-11-28 03:06:57,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:57,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:57,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:58,551 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:06:58,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:58,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832946125] [2024-11-28 03:06:58,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832946125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:58,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:58,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:06:58,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373085585] [2024-11-28 03:06:58,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:58,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:06:58,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:58,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:06:58,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:06:58,554 INFO L87 Difference]: Start difference. First operand 817 states and 1027 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:06:59,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:59,791 INFO L93 Difference]: Finished difference Result 1887 states and 2361 transitions. [2024-11-28 03:06:59,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:06:59,792 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-28 03:06:59,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:59,797 INFO L225 Difference]: With dead ends: 1887 [2024-11-28 03:06:59,797 INFO L226 Difference]: Without dead ends: 1073 [2024-11-28 03:06:59,799 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:06:59,800 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 351 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:59,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 489 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:06:59,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2024-11-28 03:06:59,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 816. [2024-11-28 03:06:59,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 719 states have (on average 1.2308762169680112) internal successors, (885), 725 states have internal predecessors, (885), 70 states have call successors, (70), 26 states have call predecessors, (70), 26 states have return successors, (70), 64 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 03:06:59,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1025 transitions. [2024-11-28 03:06:59,914 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1025 transitions. Word has length 139 [2024-11-28 03:06:59,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:59,915 INFO L471 AbstractCegarLoop]: Abstraction has 816 states and 1025 transitions. [2024-11-28 03:06:59,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:06:59,915 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1025 transitions. [2024-11-28 03:06:59,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 03:06:59,917 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:59,918 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:59,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 03:06:59,918 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:59,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:59,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1346795056, now seen corresponding path program 1 times [2024-11-28 03:06:59,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:59,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393326467] [2024-11-28 03:06:59,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:59,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:00,315 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:07:00,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:00,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393326467] [2024-11-28 03:07:00,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393326467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:00,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:00,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:07:00,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894107791] [2024-11-28 03:07:00,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:00,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:07:00,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:00,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:07:00,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:07:00,317 INFO L87 Difference]: Start difference. First operand 816 states and 1025 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:07:00,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:00,759 INFO L93 Difference]: Finished difference Result 1798 states and 2254 transitions. [2024-11-28 03:07:00,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:07:00,760 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-28 03:07:00,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:00,766 INFO L225 Difference]: With dead ends: 1798 [2024-11-28 03:07:00,767 INFO L226 Difference]: Without dead ends: 985 [2024-11-28 03:07:00,768 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:07:00,770 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 55 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:00,770 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 847 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:07:00,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2024-11-28 03:07:00,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 856. [2024-11-28 03:07:00,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 759 states have (on average 1.2371541501976284) internal successors, (939), 765 states have internal predecessors, (939), 70 states have call successors, (70), 26 states have call predecessors, (70), 26 states have return successors, (70), 64 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 03:07:00,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1079 transitions. [2024-11-28 03:07:00,889 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1079 transitions. Word has length 139 [2024-11-28 03:07:00,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:00,892 INFO L471 AbstractCegarLoop]: Abstraction has 856 states and 1079 transitions. [2024-11-28 03:07:00,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:07:00,893 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1079 transitions. [2024-11-28 03:07:00,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-28 03:07:00,895 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:00,895 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:07:00,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 03:07:00,896 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:00,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:00,897 INFO L85 PathProgramCache]: Analyzing trace with hash 850117294, now seen corresponding path program 1 times [2024-11-28 03:07:00,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:00,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510995456] [2024-11-28 03:07:00,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:00,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:00,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:02,310 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:07:02,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:02,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510995456] [2024-11-28 03:07:02,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510995456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:02,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:02,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:07:02,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574206228] [2024-11-28 03:07:02,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:02,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:07:02,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:02,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:07:02,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:02,313 INFO L87 Difference]: Start difference. First operand 856 states and 1079 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:07:03,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:03,137 INFO L93 Difference]: Finished difference Result 1772 states and 2225 transitions. [2024-11-28 03:07:03,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:03,138 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 140 [2024-11-28 03:07:03,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:03,143 INFO L225 Difference]: With dead ends: 1772 [2024-11-28 03:07:03,143 INFO L226 Difference]: Without dead ends: 919 [2024-11-28 03:07:03,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:07:03,145 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 135 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:03,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 305 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:07:03,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2024-11-28 03:07:03,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 787. [2024-11-28 03:07:03,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 700 states have (on average 1.2314285714285715) internal successors, (862), 704 states have internal predecessors, (862), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 03:07:03,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 986 transitions. [2024-11-28 03:07:03,266 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 986 transitions. Word has length 140 [2024-11-28 03:07:03,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:03,267 INFO L471 AbstractCegarLoop]: Abstraction has 787 states and 986 transitions. [2024-11-28 03:07:03,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:07:03,268 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 986 transitions. [2024-11-28 03:07:03,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 03:07:03,271 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:03,271 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:07:03,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 03:07:03,271 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:03,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:03,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1684666373, now seen corresponding path program 1 times [2024-11-28 03:07:03,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:03,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414285997] [2024-11-28 03:07:03,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:03,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:03,860 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:07:03,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:03,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414285997] [2024-11-28 03:07:03,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414285997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:03,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:03,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:07:03,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944535122] [2024-11-28 03:07:03,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:03,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:07:03,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:03,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:07:03,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:07:03,863 INFO L87 Difference]: Start difference. First operand 787 states and 986 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:07:04,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:04,364 INFO L93 Difference]: Finished difference Result 1263 states and 1541 transitions. [2024-11-28 03:07:04,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:07:04,364 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 141 [2024-11-28 03:07:04,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:04,374 INFO L225 Difference]: With dead ends: 1263 [2024-11-28 03:07:04,378 INFO L226 Difference]: Without dead ends: 1261 [2024-11-28 03:07:04,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:07:04,379 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 68 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:04,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1025 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:07:04,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2024-11-28 03:07:04,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 1257. [2024-11-28 03:07:04,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1094 states have (on average 1.1910420475319927) internal successors, (1303), 1104 states have internal predecessors, (1303), 114 states have call successors, (114), 48 states have call predecessors, (114), 48 states have return successors, (114), 104 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-28 03:07:04,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1531 transitions. [2024-11-28 03:07:04,630 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1531 transitions. Word has length 141 [2024-11-28 03:07:04,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:04,631 INFO L471 AbstractCegarLoop]: Abstraction has 1257 states and 1531 transitions. [2024-11-28 03:07:04,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:07:04,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1531 transitions. [2024-11-28 03:07:04,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 03:07:04,634 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:04,634 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:07:04,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 03:07:04,636 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:04,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:04,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1037781860, now seen corresponding path program 1 times [2024-11-28 03:07:04,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:04,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40708418] [2024-11-28 03:07:04,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:04,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:04,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:05,019 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:07:05,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:05,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40708418] [2024-11-28 03:07:05,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40708418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:05,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:05,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:07:05,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905485276] [2024-11-28 03:07:05,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:05,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:07:05,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:05,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:07:05,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:05,021 INFO L87 Difference]: Start difference. First operand 1257 states and 1531 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:07:05,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:05,350 INFO L93 Difference]: Finished difference Result 2767 states and 3367 transitions. [2024-11-28 03:07:05,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:05,355 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 141 [2024-11-28 03:07:05,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:05,361 INFO L225 Difference]: With dead ends: 2767 [2024-11-28 03:07:05,364 INFO L226 Difference]: Without dead ends: 1513 [2024-11-28 03:07:05,367 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:07:05,368 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 46 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:05,369 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 704 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:07:05,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-28 03:07:05,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1403. [2024-11-28 03:07:05,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1240 states have (on average 1.1870967741935483) internal successors, (1472), 1250 states have internal predecessors, (1472), 114 states have call successors, (114), 48 states have call predecessors, (114), 48 states have return successors, (114), 104 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-28 03:07:05,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1700 transitions. [2024-11-28 03:07:05,559 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1700 transitions. Word has length 141 [2024-11-28 03:07:05,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:05,560 INFO L471 AbstractCegarLoop]: Abstraction has 1403 states and 1700 transitions. [2024-11-28 03:07:05,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:07:05,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1700 transitions. [2024-11-28 03:07:05,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-28 03:07:05,563 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:05,563 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:07:05,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 03:07:05,563 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:05,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:05,564 INFO L85 PathProgramCache]: Analyzing trace with hash 339047129, now seen corresponding path program 1 times [2024-11-28 03:07:05,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:05,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542508742] [2024-11-28 03:07:05,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:05,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:05,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:06,393 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:07:06,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:06,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542508742] [2024-11-28 03:07:06,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542508742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:06,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:06,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:07:06,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924607341] [2024-11-28 03:07:06,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:06,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:07:06,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:06,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:07:06,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:06,397 INFO L87 Difference]: Start difference. First operand 1403 states and 1700 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:07:07,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:07,357 INFO L93 Difference]: Finished difference Result 2996 states and 3604 transitions. [2024-11-28 03:07:07,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:07,359 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 142 [2024-11-28 03:07:07,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:07,366 INFO L225 Difference]: With dead ends: 2996 [2024-11-28 03:07:07,366 INFO L226 Difference]: Without dead ends: 1596 [2024-11-28 03:07:07,369 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:07:07,370 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 48 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:07,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 473 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:07:07,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2024-11-28 03:07:07,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 1322. [2024-11-28 03:07:07,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 1159 states have (on average 1.1544434857635892) internal successors, (1338), 1169 states have internal predecessors, (1338), 114 states have call successors, (114), 48 states have call predecessors, (114), 48 states have return successors, (114), 104 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-28 03:07:07,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1566 transitions. [2024-11-28 03:07:07,687 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1566 transitions. Word has length 142 [2024-11-28 03:07:07,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:07,687 INFO L471 AbstractCegarLoop]: Abstraction has 1322 states and 1566 transitions. [2024-11-28 03:07:07,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:07:07,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1566 transitions. [2024-11-28 03:07:07,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-28 03:07:07,690 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:07,690 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:07:07,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 03:07:07,691 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:07,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:07,692 INFO L85 PathProgramCache]: Analyzing trace with hash -840470491, now seen corresponding path program 1 times [2024-11-28 03:07:07,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:07,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307791590] [2024-11-28 03:07:07,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:07,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:07,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:08,206 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:07:08,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:08,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307791590] [2024-11-28 03:07:08,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307791590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:08,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:08,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:07:08,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41468329] [2024-11-28 03:07:08,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:08,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:07:08,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:08,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:07:08,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:08,209 INFO L87 Difference]: Start difference. First operand 1322 states and 1566 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:07:08,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:08,552 INFO L93 Difference]: Finished difference Result 2304 states and 2745 transitions. [2024-11-28 03:07:08,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:08,553 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 142 [2024-11-28 03:07:08,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:08,559 INFO L225 Difference]: With dead ends: 2304 [2024-11-28 03:07:08,559 INFO L226 Difference]: Without dead ends: 941 [2024-11-28 03:07:08,564 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:07:08,565 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 113 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:08,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 455 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:07:08,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2024-11-28 03:07:08,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 939. [2024-11-28 03:07:08,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 796 states have (on average 1.1457286432160805) internal successors, (912), 804 states have internal predecessors, (912), 100 states have call successors, (100), 42 states have call predecessors, (100), 42 states have return successors, (100), 92 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-28 03:07:08,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1112 transitions. [2024-11-28 03:07:08,765 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1112 transitions. Word has length 142 [2024-11-28 03:07:08,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:08,766 INFO L471 AbstractCegarLoop]: Abstraction has 939 states and 1112 transitions. [2024-11-28 03:07:08,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:07:08,766 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1112 transitions. [2024-11-28 03:07:08,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 03:07:08,768 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:08,768 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:07:08,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 03:07:08,769 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:08,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:08,769 INFO L85 PathProgramCache]: Analyzing trace with hash -996369262, now seen corresponding path program 1 times [2024-11-28 03:07:08,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:08,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838948366] [2024-11-28 03:07:08,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:08,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:08,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:09,106 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:07:09,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:09,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838948366] [2024-11-28 03:07:09,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838948366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:09,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:09,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:07:09,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59686375] [2024-11-28 03:07:09,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:09,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:07:09,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:09,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:07:09,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:09,108 INFO L87 Difference]: Start difference. First operand 939 states and 1112 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:07:09,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:09,414 INFO L93 Difference]: Finished difference Result 1773 states and 2095 transitions. [2024-11-28 03:07:09,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:09,414 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2024-11-28 03:07:09,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:09,420 INFO L225 Difference]: With dead ends: 1773 [2024-11-28 03:07:09,420 INFO L226 Difference]: Without dead ends: 870 [2024-11-28 03:07:09,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:07:09,424 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 65 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:09,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 680 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:07:09,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2024-11-28 03:07:09,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 864. [2024-11-28 03:07:09,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 721 states have (on average 1.130374479889043) internal successors, (815), 729 states have internal predecessors, (815), 100 states have call successors, (100), 42 states have call predecessors, (100), 42 states have return successors, (100), 92 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-28 03:07:09,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1015 transitions. [2024-11-28 03:07:09,620 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1015 transitions. Word has length 143 [2024-11-28 03:07:09,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:09,621 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 1015 transitions. [2024-11-28 03:07:09,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:07:09,622 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1015 transitions. [2024-11-28 03:07:09,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 03:07:09,625 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:09,625 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:07:09,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-28 03:07:09,625 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:09,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:09,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1560829808, now seen corresponding path program 1 times [2024-11-28 03:07:09,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:09,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248225924] [2024-11-28 03:07:09,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:09,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:09,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:10,113 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:07:10,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:10,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248225924] [2024-11-28 03:07:10,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248225924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:10,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:10,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:07:10,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194751978] [2024-11-28 03:07:10,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:10,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:07:10,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:10,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:07:10,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:10,115 INFO L87 Difference]: Start difference. First operand 864 states and 1015 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:07:10,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:10,448 INFO L93 Difference]: Finished difference Result 1650 states and 1930 transitions. [2024-11-28 03:07:10,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:10,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 144 [2024-11-28 03:07:10,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:10,452 INFO L225 Difference]: With dead ends: 1650 [2024-11-28 03:07:10,452 INFO L226 Difference]: Without dead ends: 822 [2024-11-28 03:07:10,453 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:07:10,454 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 65 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:10,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 444 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:07:10,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2024-11-28 03:07:10,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 822. [2024-11-28 03:07:10,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 679 states have (on average 1.1030927835051547) internal successors, (749), 687 states have internal predecessors, (749), 100 states have call successors, (100), 42 states have call predecessors, (100), 42 states have return successors, (100), 92 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-28 03:07:10,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 949 transitions. [2024-11-28 03:07:10,644 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 949 transitions. Word has length 144 [2024-11-28 03:07:10,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:10,644 INFO L471 AbstractCegarLoop]: Abstraction has 822 states and 949 transitions. [2024-11-28 03:07:10,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:07:10,645 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 949 transitions. [2024-11-28 03:07:10,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 03:07:10,646 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:10,646 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:07:10,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-28 03:07:10,647 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:10,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:10,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1027029127, now seen corresponding path program 1 times [2024-11-28 03:07:10,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:10,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969837044] [2024-11-28 03:07:10,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:10,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:11,847 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:07:11,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:11,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969837044] [2024-11-28 03:07:11,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969837044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:11,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:11,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:07:11,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697099636] [2024-11-28 03:07:11,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:11,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:07:11,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:11,849 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:07:11,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:07:11,850 INFO L87 Difference]: Start difference. First operand 822 states and 949 transitions. Second operand has 10 states, 8 states have (on average 7.75) internal successors, (62), 10 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:07:12,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:12,405 INFO L93 Difference]: Finished difference Result 1067 states and 1233 transitions. [2024-11-28 03:07:12,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:07:12,405 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.75) internal successors, (62), 10 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) Word has length 144 [2024-11-28 03:07:12,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:12,410 INFO L225 Difference]: With dead ends: 1067 [2024-11-28 03:07:12,410 INFO L226 Difference]: Without dead ends: 1065 [2024-11-28 03:07:12,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:07:12,411 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 66 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:12,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 1420 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:07:12,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2024-11-28 03:07:12,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1061. [2024-11-28 03:07:12,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 874 states have (on average 1.105263157894737) internal successors, (966), 885 states have internal predecessors, (966), 130 states have call successors, (130), 56 states have call predecessors, (130), 56 states have return successors, (130), 119 states have call predecessors, (130), 130 states have call successors, (130) [2024-11-28 03:07:12,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1226 transitions. [2024-11-28 03:07:12,660 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1226 transitions. Word has length 144 [2024-11-28 03:07:12,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:12,660 INFO L471 AbstractCegarLoop]: Abstraction has 1061 states and 1226 transitions. [2024-11-28 03:07:12,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.75) internal successors, (62), 10 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:07:12,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1226 transitions. [2024-11-28 03:07:12,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 03:07:12,666 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:12,667 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:07:12,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-28 03:07:12,667 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:12,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:12,667 INFO L85 PathProgramCache]: Analyzing trace with hash 747978235, now seen corresponding path program 1 times [2024-11-28 03:07:12,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:12,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308795306] [2024-11-28 03:07:12,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:12,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:12,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:16,004 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:07:16,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:16,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308795306] [2024-11-28 03:07:16,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308795306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:16,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:16,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 03:07:16,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992314308] [2024-11-28 03:07:16,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:16,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:07:16,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:16,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:07:16,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:07:16,007 INFO L87 Difference]: Start difference. First operand 1061 states and 1226 transitions. Second operand has 14 states, 12 states have (on average 5.166666666666667) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:07:21,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:21,883 INFO L93 Difference]: Finished difference Result 2327 states and 2692 transitions. [2024-11-28 03:07:21,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:07:21,884 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.166666666666667) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) Word has length 144 [2024-11-28 03:07:21,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:21,890 INFO L225 Difference]: With dead ends: 2327 [2024-11-28 03:07:21,890 INFO L226 Difference]: Without dead ends: 1302 [2024-11-28 03:07:21,892 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:07:21,893 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 182 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 1169 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:21,893 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 1169 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-28 03:07:21,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2024-11-28 03:07:22,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1149. [2024-11-28 03:07:22,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1149 states, 962 states have (on average 1.1143451143451144) internal successors, (1072), 973 states have internal predecessors, (1072), 130 states have call successors, (130), 56 states have call predecessors, (130), 56 states have return successors, (130), 119 states have call predecessors, (130), 130 states have call successors, (130) [2024-11-28 03:07:22,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1332 transitions. [2024-11-28 03:07:22,174 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1332 transitions. Word has length 144 [2024-11-28 03:07:22,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:22,175 INFO L471 AbstractCegarLoop]: Abstraction has 1149 states and 1332 transitions. [2024-11-28 03:07:22,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.166666666666667) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:07:22,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1332 transitions. [2024-11-28 03:07:22,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 03:07:22,177 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:22,177 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:07:22,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-28 03:07:22,178 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:22,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:22,178 INFO L85 PathProgramCache]: Analyzing trace with hash -61368391, now seen corresponding path program 1 times [2024-11-28 03:07:22,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:22,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249737211] [2024-11-28 03:07:22,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:22,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:22,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:22,423 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:07:22,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:22,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249737211] [2024-11-28 03:07:22,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249737211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:22,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:22,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:07:22,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150225706] [2024-11-28 03:07:22,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:22,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:07:22,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:22,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:07:22,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:07:22,425 INFO L87 Difference]: Start difference. First operand 1149 states and 1332 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:07:23,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:23,051 INFO L93 Difference]: Finished difference Result 2880 states and 3301 transitions. [2024-11-28 03:07:23,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:07:23,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 144 [2024-11-28 03:07:23,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:23,058 INFO L225 Difference]: With dead ends: 2880 [2024-11-28 03:07:23,059 INFO L226 Difference]: Without dead ends: 1767 [2024-11-28 03:07:23,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:23,061 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 48 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:23,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 369 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:07:23,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2024-11-28 03:07:23,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1227. [2024-11-28 03:07:23,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1227 states, 1040 states have (on average 1.1134615384615385) internal successors, (1158), 1051 states have internal predecessors, (1158), 130 states have call successors, (130), 56 states have call predecessors, (130), 56 states have return successors, (130), 119 states have call predecessors, (130), 130 states have call successors, (130) [2024-11-28 03:07:23,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1418 transitions. [2024-11-28 03:07:23,326 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1418 transitions. Word has length 144 [2024-11-28 03:07:23,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:23,326 INFO L471 AbstractCegarLoop]: Abstraction has 1227 states and 1418 transitions. [2024-11-28 03:07:23,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:07:23,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1418 transitions. [2024-11-28 03:07:23,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 03:07:23,329 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:23,329 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:07:23,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-28 03:07:23,329 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:23,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:23,330 INFO L85 PathProgramCache]: Analyzing trace with hash -886480517, now seen corresponding path program 1 times [2024-11-28 03:07:23,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:23,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919142085] [2024-11-28 03:07:23,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:23,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:31,121 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: incomplete