./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/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_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/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 64bit --witnessprinter.graph.data.programhash 7efec3183b551b8159eccadb4807318ed392eb1a388f130f9498beabb74a52bc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:12:57,824 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:12:57,888 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 05:12:57,893 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:12:57,893 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:12:57,917 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:12:57,917 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:12:57,917 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:12:57,918 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:12:57,918 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:12:57,918 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:12:57,918 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:12:57,918 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:12:57,919 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:12:57,919 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:12:57,919 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:12:57,919 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:12:57,919 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:12:57,919 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:12:57,919 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:12:57,919 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:12:57,920 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:12:57,920 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:12:57,920 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:12:57,920 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:12:57,920 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:12:57,920 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:12:57,920 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:12:57,920 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:12:57,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:12:57,921 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:12:57,921 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:12:57,921 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:12:57,921 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:12:57,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:12:57,921 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:12:57,921 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:12:57,922 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:12:57,922 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:12:57,922 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:12:57,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:12:57,922 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:12:57,922 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:12:57,922 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:12:57,922 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:12:57,922 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_b6a6440f-c172-4197-b900-49eb973ee7db/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7efec3183b551b8159eccadb4807318ed392eb1a388f130f9498beabb74a52bc [2024-11-28 05:12:58,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:12:58,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:12:58,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:12:58,243 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:12:58,243 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:12:58,246 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex.c [2024-11-28 05:13:01,176 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/data/4a3b4fafd/ca77db6e11eb48f3b74a65b20e06a8a4/FLAG754a0fb2f [2024-11-28 05:13:01,504 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:13:01,505 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex.c [2024-11-28 05:13:01,530 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/data/4a3b4fafd/ca77db6e11eb48f3b74a65b20e06a8a4/FLAG754a0fb2f [2024-11-28 05:13:01,557 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/data/4a3b4fafd/ca77db6e11eb48f3b74a65b20e06a8a4 [2024-11-28 05:13:01,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:13:01,562 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:13:01,565 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:13:01,567 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:13:01,577 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:13:01,578 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:13:01" (1/1) ... [2024-11-28 05:13:01,581 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50b4a7f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:01, skipping insertion in model container [2024-11-28 05:13:01,581 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:13:01" (1/1) ... [2024-11-28 05:13:01,623 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:13:01,842 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_b6a6440f-c172-4197-b900-49eb973ee7db/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex.c[1249,1262] [2024-11-28 05:13:02,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:13:02,047 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:13:02,059 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_b6a6440f-c172-4197-b900-49eb973ee7db/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex.c[1249,1262] [2024-11-28 05:13:02,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:13:02,207 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:13:02,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:02 WrapperNode [2024-11-28 05:13:02,209 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:13:02,210 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:13:02,211 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:13:02,211 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:13:02,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:02" (1/1) ... [2024-11-28 05:13:02,243 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:02" (1/1) ... [2024-11-28 05:13:02,491 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1299 [2024-11-28 05:13:02,491 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:13:02,492 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:13:02,494 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:13:02,494 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:13:02,504 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:02" (1/1) ... [2024-11-28 05:13:02,504 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:02" (1/1) ... [2024-11-28 05:13:02,532 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:02" (1/1) ... [2024-11-28 05:13:02,614 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 05:13:02,614 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:02" (1/1) ... [2024-11-28 05:13:02,614 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:02" (1/1) ... [2024-11-28 05:13:02,670 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:02" (1/1) ... [2024-11-28 05:13:02,686 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:02" (1/1) ... [2024-11-28 05:13:02,693 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:02" (1/1) ... [2024-11-28 05:13:02,714 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:02" (1/1) ... [2024-11-28 05:13:02,729 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:02" (1/1) ... [2024-11-28 05:13:02,750 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:13:02,751 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:13:02,751 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:13:02,751 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:13:02,752 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:02" (1/1) ... [2024-11-28 05:13:02,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:13:02,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:02,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:02,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:13:02,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:13:02,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:13:02,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:13:02,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:13:03,125 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:13:03,127 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:13:05,481 INFO L? ?]: Removed 798 outVars from TransFormulas that were not future-live. [2024-11-28 05:13:05,481 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:13:05,512 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:13:05,512 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 05:13:05,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:13:05 BoogieIcfgContainer [2024-11-28 05:13:05,513 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:13:05,515 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:13:05,515 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:13:05,523 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:13:05,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:13:01" (1/3) ... [2024-11-28 05:13:05,524 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38eadbaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:13:05, skipping insertion in model container [2024-11-28 05:13:05,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:02" (2/3) ... [2024-11-28 05:13:05,526 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38eadbaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:13:05, skipping insertion in model container [2024-11-28 05:13:05,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:13:05" (3/3) ... [2024-11-28 05:13:05,527 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sw_sym_ex.c [2024-11-28 05:13:05,546 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:13:05,549 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.sw_sym_ex.c that has 1 procedures, 382 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 05:13:05,647 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:13:05,665 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;@7094cb17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:13:05,666 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 05:13:05,674 INFO L276 IsEmpty]: Start isEmpty. Operand has 382 states, 380 states have (on average 1.4973684210526317) internal successors, (569), 381 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:05,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-28 05:13:05,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:05,682 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:05,682 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:05,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:05,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1356964072, now seen corresponding path program 1 times [2024-11-28 05:13:05,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:05,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109544262] [2024-11-28 05:13:05,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:05,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:06,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:06,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:06,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109544262] [2024-11-28 05:13:06,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109544262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:06,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:06,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:13:06,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547042089] [2024-11-28 05:13:06,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:06,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:13:06,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:06,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:13:06,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:13:06,647 INFO L87 Difference]: Start difference. First operand has 382 states, 380 states have (on average 1.4973684210526317) internal successors, (569), 381 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:06,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:06,755 INFO L93 Difference]: Finished difference Result 717 states and 1071 transitions. [2024-11-28 05:13:06,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:13:06,758 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-11-28 05:13:06,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:06,769 INFO L225 Difference]: With dead ends: 717 [2024-11-28 05:13:06,770 INFO L226 Difference]: Without dead ends: 381 [2024-11-28 05:13:06,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:13:06,778 INFO L435 NwaCegarLoop]: 563 mSDtfsCounter, 0 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1683 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:06,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1683 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:13:06,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-28 05:13:06,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2024-11-28 05:13:06,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 1.4921052631578948) internal successors, (567), 380 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:06,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 567 transitions. [2024-11-28 05:13:06,849 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 567 transitions. Word has length 37 [2024-11-28 05:13:06,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:06,850 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 567 transitions. [2024-11-28 05:13:06,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:06,850 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 567 transitions. [2024-11-28 05:13:06,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 05:13:06,851 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:06,852 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:06,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 05:13:06,852 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:06,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:06,854 INFO L85 PathProgramCache]: Analyzing trace with hash 885482089, now seen corresponding path program 1 times [2024-11-28 05:13:06,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:06,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878067907] [2024-11-28 05:13:06,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:06,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:07,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:07,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:07,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878067907] [2024-11-28 05:13:07,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878067907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:07,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:07,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:13:07,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740241068] [2024-11-28 05:13:07,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:07,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:13:07,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:07,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:13:07,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:13:07,132 INFO L87 Difference]: Start difference. First operand 381 states and 567 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:07,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:07,224 INFO L93 Difference]: Finished difference Result 718 states and 1069 transitions. [2024-11-28 05:13:07,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:13:07,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-11-28 05:13:07,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:07,227 INFO L225 Difference]: With dead ends: 718 [2024-11-28 05:13:07,227 INFO L226 Difference]: Without dead ends: 383 [2024-11-28 05:13:07,228 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:13:07,231 INFO L435 NwaCegarLoop]: 563 mSDtfsCounter, 0 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:07,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1679 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:13:07,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-28 05:13:07,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383. [2024-11-28 05:13:07,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 382 states have (on average 1.4895287958115184) internal successors, (569), 382 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:07,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 569 transitions. [2024-11-28 05:13:07,263 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 569 transitions. Word has length 38 [2024-11-28 05:13:07,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:07,263 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 569 transitions. [2024-11-28 05:13:07,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:07,263 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 569 transitions. [2024-11-28 05:13:07,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-28 05:13:07,264 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:07,264 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:07,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:13:07,269 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:07,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:07,269 INFO L85 PathProgramCache]: Analyzing trace with hash 582175249, now seen corresponding path program 1 times [2024-11-28 05:13:07,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:07,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580502436] [2024-11-28 05:13:07,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:07,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:07,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:07,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:07,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580502436] [2024-11-28 05:13:07,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580502436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:07,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:07,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:13:07,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403177330] [2024-11-28 05:13:07,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:07,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:13:07,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:07,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:13:07,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:13:07,697 INFO L87 Difference]: Start difference. First operand 383 states and 569 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:07,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:07,852 INFO L93 Difference]: Finished difference Result 1027 states and 1528 transitions. [2024-11-28 05:13:07,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:13:07,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2024-11-28 05:13:07,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:07,856 INFO L225 Difference]: With dead ends: 1027 [2024-11-28 05:13:07,856 INFO L226 Difference]: Without dead ends: 690 [2024-11-28 05:13:07,858 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:07,859 INFO L435 NwaCegarLoop]: 552 mSDtfsCounter, 1449 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:07,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1449 Valid, 1650 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:07,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-28 05:13:07,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 397. [2024-11-28 05:13:07,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 396 states have (on average 1.4873737373737375) internal successors, (589), 396 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:07,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 589 transitions. [2024-11-28 05:13:07,875 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 589 transitions. Word has length 39 [2024-11-28 05:13:07,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:07,875 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 589 transitions. [2024-11-28 05:13:07,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:07,876 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 589 transitions. [2024-11-28 05:13:07,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-28 05:13:07,889 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:07,890 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:07,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:13:07,890 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:07,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:07,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1451602872, now seen corresponding path program 1 times [2024-11-28 05:13:07,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:07,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53906134] [2024-11-28 05:13:07,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:07,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:08,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:10,470 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:10,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:10,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53906134] [2024-11-28 05:13:10,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53906134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:10,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:10,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:13:10,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498009062] [2024-11-28 05:13:10,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:10,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:13:10,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:10,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:13:10,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:13:10,476 INFO L87 Difference]: Start difference. First operand 397 states and 589 transitions. Second operand has 5 states, 5 states have (on average 41.2) internal successors, (206), 5 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:10,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:10,669 INFO L93 Difference]: Finished difference Result 1003 states and 1491 transitions. [2024-11-28 05:13:10,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:13:10,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.2) internal successors, (206), 5 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 206 [2024-11-28 05:13:10,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:10,677 INFO L225 Difference]: With dead ends: 1003 [2024-11-28 05:13:10,677 INFO L226 Difference]: Without dead ends: 666 [2024-11-28 05:13:10,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:10,679 INFO L435 NwaCegarLoop]: 550 mSDtfsCounter, 1347 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1347 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:10,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1347 Valid, 1647 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:10,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2024-11-28 05:13:10,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 448. [2024-11-28 05:13:10,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 447 states have (on average 1.4809843400447427) internal successors, (662), 447 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:10,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 662 transitions. [2024-11-28 05:13:10,710 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 662 transitions. Word has length 206 [2024-11-28 05:13:10,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:10,711 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 662 transitions. [2024-11-28 05:13:10,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.2) internal successors, (206), 5 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:10,711 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 662 transitions. [2024-11-28 05:13:10,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-28 05:13:10,719 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:10,719 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:10,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:13:10,723 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:10,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:10,724 INFO L85 PathProgramCache]: Analyzing trace with hash -736690901, now seen corresponding path program 1 times [2024-11-28 05:13:10,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:10,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221839625] [2024-11-28 05:13:10,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:10,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:13,632 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:13,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:13,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221839625] [2024-11-28 05:13:13,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221839625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:13,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:13,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:13:13,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534457182] [2024-11-28 05:13:13,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:13,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:13:13,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:13,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:13:13,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:13:13,640 INFO L87 Difference]: Start difference. First operand 448 states and 662 transitions. Second operand has 5 states, 5 states have (on average 41.6) internal successors, (208), 5 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:13,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:13,819 INFO L93 Difference]: Finished difference Result 1003 states and 1489 transitions. [2024-11-28 05:13:13,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:13:13,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 5 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 208 [2024-11-28 05:13:13,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:13,824 INFO L225 Difference]: With dead ends: 1003 [2024-11-28 05:13:13,825 INFO L226 Difference]: Without dead ends: 666 [2024-11-28 05:13:13,825 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:13,827 INFO L435 NwaCegarLoop]: 549 mSDtfsCounter, 1281 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1281 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:13,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1281 Valid, 1646 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:13,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2024-11-28 05:13:13,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 571. [2024-11-28 05:13:13,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 570 states have (on average 1.4824561403508771) internal successors, (845), 570 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:13,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 845 transitions. [2024-11-28 05:13:13,848 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 845 transitions. Word has length 208 [2024-11-28 05:13:13,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:13,849 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 845 transitions. [2024-11-28 05:13:13,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 5 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:13,850 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 845 transitions. [2024-11-28 05:13:13,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-28 05:13:13,852 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:13,853 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:13,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:13:13,853 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:13,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:13,854 INFO L85 PathProgramCache]: Analyzing trace with hash -2057904229, now seen corresponding path program 1 times [2024-11-28 05:13:13,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:13,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117067529] [2024-11-28 05:13:13,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:13,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:16,124 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:16,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:16,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117067529] [2024-11-28 05:13:16,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117067529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:16,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:16,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:13:16,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612732961] [2024-11-28 05:13:16,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:16,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:13:16,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:16,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:13:16,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:16,127 INFO L87 Difference]: Start difference. First operand 571 states and 845 transitions. Second operand has 7 states, 7 states have (on average 29.857142857142858) internal successors, (209), 7 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:16,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:16,353 INFO L93 Difference]: Finished difference Result 1011 states and 1500 transitions. [2024-11-28 05:13:16,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:13:16,354 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 29.857142857142858) internal successors, (209), 7 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 209 [2024-11-28 05:13:16,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:16,358 INFO L225 Difference]: With dead ends: 1011 [2024-11-28 05:13:16,358 INFO L226 Difference]: Without dead ends: 674 [2024-11-28 05:13:16,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:13:16,360 INFO L435 NwaCegarLoop]: 546 mSDtfsCounter, 1301 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 2451 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:16,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1301 Valid, 2451 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:16,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2024-11-28 05:13:16,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 574. [2024-11-28 05:13:16,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 573 states have (on average 1.4816753926701571) internal successors, (849), 573 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:16,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 849 transitions. [2024-11-28 05:13:16,382 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 849 transitions. Word has length 209 [2024-11-28 05:13:16,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:16,383 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 849 transitions. [2024-11-28 05:13:16,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 29.857142857142858) internal successors, (209), 7 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:16,383 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 849 transitions. [2024-11-28 05:13:16,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-28 05:13:16,386 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:16,387 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:16,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 05:13:16,387 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:16,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:16,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1244200430, now seen corresponding path program 1 times [2024-11-28 05:13:16,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:16,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046927134] [2024-11-28 05:13:16,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:16,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:18,120 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:18,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:18,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046927134] [2024-11-28 05:13:18,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046927134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:18,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:18,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:13:18,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816844847] [2024-11-28 05:13:18,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:18,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:13:18,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:18,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:13:18,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:13:18,122 INFO L87 Difference]: Start difference. First operand 574 states and 849 transitions. Second operand has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:18,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:18,289 INFO L93 Difference]: Finished difference Result 1070 states and 1586 transitions. [2024-11-28 05:13:18,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:13:18,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2024-11-28 05:13:18,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:18,294 INFO L225 Difference]: With dead ends: 1070 [2024-11-28 05:13:18,294 INFO L226 Difference]: Without dead ends: 668 [2024-11-28 05:13:18,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:18,299 INFO L435 NwaCegarLoop]: 549 mSDtfsCounter, 1311 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:18,300 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1311 Valid, 1646 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:18,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-28 05:13:18,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 574. [2024-11-28 05:13:18,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 573 states have (on average 1.4799301919720769) internal successors, (848), 573 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:18,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 848 transitions. [2024-11-28 05:13:18,320 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 848 transitions. Word has length 210 [2024-11-28 05:13:18,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:18,321 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 848 transitions. [2024-11-28 05:13:18,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:18,322 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 848 transitions. [2024-11-28 05:13:18,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-28 05:13:18,327 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:18,328 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:18,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 05:13:18,328 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:18,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:18,329 INFO L85 PathProgramCache]: Analyzing trace with hash 746144786, now seen corresponding path program 1 times [2024-11-28 05:13:18,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:18,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596899579] [2024-11-28 05:13:18,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:18,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:20,134 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:20,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:20,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596899579] [2024-11-28 05:13:20,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596899579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:20,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:20,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:13:20,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603285436] [2024-11-28 05:13:20,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:20,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:13:20,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:20,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:13:20,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:13:20,138 INFO L87 Difference]: Start difference. First operand 574 states and 848 transitions. Second operand has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:20,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:20,303 INFO L93 Difference]: Finished difference Result 1038 states and 1537 transitions. [2024-11-28 05:13:20,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:13:20,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 211 [2024-11-28 05:13:20,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:20,308 INFO L225 Difference]: With dead ends: 1038 [2024-11-28 05:13:20,308 INFO L226 Difference]: Without dead ends: 668 [2024-11-28 05:13:20,309 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:20,310 INFO L435 NwaCegarLoop]: 549 mSDtfsCounter, 1292 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1292 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:20,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1292 Valid, 1646 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:20,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-28 05:13:20,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 574. [2024-11-28 05:13:20,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 573 states have (on average 1.4781849912739966) internal successors, (847), 573 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:20,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 847 transitions. [2024-11-28 05:13:20,330 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 847 transitions. Word has length 211 [2024-11-28 05:13:20,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:20,331 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 847 transitions. [2024-11-28 05:13:20,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:20,331 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 847 transitions. [2024-11-28 05:13:20,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-28 05:13:20,334 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:20,335 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:20,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 05:13:20,335 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:20,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:20,336 INFO L85 PathProgramCache]: Analyzing trace with hash -451875766, now seen corresponding path program 1 times [2024-11-28 05:13:20,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:20,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761808032] [2024-11-28 05:13:20,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:20,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:20,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:21,925 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:21,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:21,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761808032] [2024-11-28 05:13:21,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761808032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:21,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:21,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:13:21,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521472436] [2024-11-28 05:13:21,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:21,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:13:21,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:21,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:13:21,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:21,933 INFO L87 Difference]: Start difference. First operand 574 states and 847 transitions. Second operand has 7 states, 7 states have (on average 30.285714285714285) internal successors, (212), 7 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:22,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:22,167 INFO L93 Difference]: Finished difference Result 1042 states and 1542 transitions. [2024-11-28 05:13:22,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:13:22,168 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.285714285714285) internal successors, (212), 7 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 212 [2024-11-28 05:13:22,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:22,171 INFO L225 Difference]: With dead ends: 1042 [2024-11-28 05:13:22,171 INFO L226 Difference]: Without dead ends: 676 [2024-11-28 05:13:22,172 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:13:22,172 INFO L435 NwaCegarLoop]: 546 mSDtfsCounter, 1312 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 2586 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:22,173 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 2586 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:22,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2024-11-28 05:13:22,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 576. [2024-11-28 05:13:22,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 575 states have (on average 1.4765217391304348) internal successors, (849), 575 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:22,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 849 transitions. [2024-11-28 05:13:22,192 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 849 transitions. Word has length 212 [2024-11-28 05:13:22,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:22,193 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 849 transitions. [2024-11-28 05:13:22,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.285714285714285) internal successors, (212), 7 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:22,193 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 849 transitions. [2024-11-28 05:13:22,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-28 05:13:22,196 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:22,196 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:22,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 05:13:22,197 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:22,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:22,197 INFO L85 PathProgramCache]: Analyzing trace with hash -458312135, now seen corresponding path program 1 times [2024-11-28 05:13:22,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:22,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436012311] [2024-11-28 05:13:22,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:22,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:23,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:24,186 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:24,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:24,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436012311] [2024-11-28 05:13:24,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436012311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:24,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:24,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:13:24,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967370636] [2024-11-28 05:13:24,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:24,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:13:24,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:24,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:13:24,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:13:24,189 INFO L87 Difference]: Start difference. First operand 576 states and 849 transitions. Second operand has 5 states, 5 states have (on average 42.6) internal successors, (213), 5 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:24,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:24,353 INFO L93 Difference]: Finished difference Result 1010 states and 1495 transitions. [2024-11-28 05:13:24,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:13:24,353 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.6) internal successors, (213), 5 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 213 [2024-11-28 05:13:24,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:24,357 INFO L225 Difference]: With dead ends: 1010 [2024-11-28 05:13:24,357 INFO L226 Difference]: Without dead ends: 673 [2024-11-28 05:13:24,358 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:24,359 INFO L435 NwaCegarLoop]: 549 mSDtfsCounter, 1228 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 1642 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:24,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1228 Valid, 1642 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:24,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2024-11-28 05:13:24,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 671. [2024-11-28 05:13:24,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 670 states have (on average 1.4776119402985075) internal successors, (990), 670 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:24,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 990 transitions. [2024-11-28 05:13:24,383 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 990 transitions. Word has length 213 [2024-11-28 05:13:24,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:24,383 INFO L471 AbstractCegarLoop]: Abstraction has 671 states and 990 transitions. [2024-11-28 05:13:24,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.6) internal successors, (213), 5 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:24,383 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 990 transitions. [2024-11-28 05:13:24,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-28 05:13:24,386 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:24,386 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:24,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 05:13:24,387 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:24,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:24,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1340981493, now seen corresponding path program 1 times [2024-11-28 05:13:24,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:24,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706720720] [2024-11-28 05:13:24,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:24,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:26,017 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:26,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:26,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706720720] [2024-11-28 05:13:26,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706720720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:26,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:26,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:13:26,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702099546] [2024-11-28 05:13:26,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:26,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:13:26,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:26,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:13:26,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:13:26,020 INFO L87 Difference]: Start difference. First operand 671 states and 990 transitions. Second operand has 5 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:26,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:26,174 INFO L93 Difference]: Finished difference Result 1038 states and 1535 transitions. [2024-11-28 05:13:26,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:13:26,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 214 [2024-11-28 05:13:26,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:26,178 INFO L225 Difference]: With dead ends: 1038 [2024-11-28 05:13:26,178 INFO L226 Difference]: Without dead ends: 671 [2024-11-28 05:13:26,179 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:26,180 INFO L435 NwaCegarLoop]: 549 mSDtfsCounter, 1238 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:26,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1238 Valid, 1646 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:26,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2024-11-28 05:13:26,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 671. [2024-11-28 05:13:26,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 670 states have (on average 1.4761194029850746) internal successors, (989), 670 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:26,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 989 transitions. [2024-11-28 05:13:26,200 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 989 transitions. Word has length 214 [2024-11-28 05:13:26,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:26,201 INFO L471 AbstractCegarLoop]: Abstraction has 671 states and 989 transitions. [2024-11-28 05:13:26,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:26,202 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 989 transitions. [2024-11-28 05:13:26,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-28 05:13:26,204 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:26,204 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:26,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 05:13:26,205 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:26,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:26,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1210162929, now seen corresponding path program 1 times [2024-11-28 05:13:26,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:26,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618231403] [2024-11-28 05:13:26,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:26,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:26,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:27,779 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:27,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:27,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618231403] [2024-11-28 05:13:27,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618231403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:27,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:27,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:13:27,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552222324] [2024-11-28 05:13:27,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:27,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:13:27,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:27,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:13:27,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:27,782 INFO L87 Difference]: Start difference. First operand 671 states and 989 transitions. Second operand has 7 states, 7 states have (on average 30.714285714285715) internal successors, (215), 7 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:27,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:27,993 INFO L93 Difference]: Finished difference Result 1041 states and 1538 transitions. [2024-11-28 05:13:27,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:13:27,994 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.714285714285715) internal successors, (215), 7 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 215 [2024-11-28 05:13:27,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:27,999 INFO L225 Difference]: With dead ends: 1041 [2024-11-28 05:13:27,999 INFO L226 Difference]: Without dead ends: 678 [2024-11-28 05:13:28,000 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:13:28,001 INFO L435 NwaCegarLoop]: 546 mSDtfsCounter, 1256 mSDsluCounter, 1897 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1256 SdHoareTripleChecker+Valid, 2443 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:28,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1256 Valid, 2443 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:28,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2024-11-28 05:13:28,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 673. [2024-11-28 05:13:28,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 672 states have (on average 1.474702380952381) internal successors, (991), 672 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:28,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 991 transitions. [2024-11-28 05:13:28,024 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 991 transitions. Word has length 215 [2024-11-28 05:13:28,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:28,025 INFO L471 AbstractCegarLoop]: Abstraction has 673 states and 991 transitions. [2024-11-28 05:13:28,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.714285714285715) internal successors, (215), 7 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:28,025 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 991 transitions. [2024-11-28 05:13:28,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-28 05:13:28,029 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:28,029 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:28,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 05:13:28,029 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:28,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:28,030 INFO L85 PathProgramCache]: Analyzing trace with hash 766167662, now seen corresponding path program 1 times [2024-11-28 05:13:28,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:28,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281900403] [2024-11-28 05:13:28,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:28,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:29,484 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:29,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:29,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281900403] [2024-11-28 05:13:29,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281900403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:29,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:29,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:13:29,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080400321] [2024-11-28 05:13:29,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:29,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:13:29,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:29,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:13:29,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:29,490 INFO L87 Difference]: Start difference. First operand 673 states and 991 transitions. Second operand has 7 states, 7 states have (on average 30.857142857142858) internal successors, (216), 7 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:29,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:29,725 INFO L93 Difference]: Finished difference Result 1145 states and 1691 transitions. [2024-11-28 05:13:29,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:13:29,726 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.857142857142858) internal successors, (216), 7 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 216 [2024-11-28 05:13:29,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:29,729 INFO L225 Difference]: With dead ends: 1145 [2024-11-28 05:13:29,730 INFO L226 Difference]: Without dead ends: 720 [2024-11-28 05:13:29,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:13:29,731 INFO L435 NwaCegarLoop]: 545 mSDtfsCounter, 1406 mSDsluCounter, 2179 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 2724 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:29,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1406 Valid, 2724 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:29,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2024-11-28 05:13:29,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 675. [2024-11-28 05:13:29,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 674 states have (on average 1.4732937685459941) internal successors, (993), 674 states have internal predecessors, (993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:29,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 993 transitions. [2024-11-28 05:13:29,755 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 993 transitions. Word has length 216 [2024-11-28 05:13:29,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:29,755 INFO L471 AbstractCegarLoop]: Abstraction has 675 states and 993 transitions. [2024-11-28 05:13:29,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.857142857142858) internal successors, (216), 7 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:29,756 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 993 transitions. [2024-11-28 05:13:29,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-28 05:13:29,759 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:29,759 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:29,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 05:13:29,760 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:29,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:29,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1237679278, now seen corresponding path program 1 times [2024-11-28 05:13:29,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:29,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575684548] [2024-11-28 05:13:29,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:29,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:31,391 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:31,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:31,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575684548] [2024-11-28 05:13:31,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575684548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:31,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:31,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:13:31,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408311579] [2024-11-28 05:13:31,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:31,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:13:31,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:31,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:13:31,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:13:31,396 INFO L87 Difference]: Start difference. First operand 675 states and 993 transitions. Second operand has 5 states, 5 states have (on average 43.2) internal successors, (216), 5 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:31,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:31,548 INFO L93 Difference]: Finished difference Result 1076 states and 1587 transitions. [2024-11-28 05:13:31,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:13:31,549 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 5 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 216 [2024-11-28 05:13:31,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:31,552 INFO L225 Difference]: With dead ends: 1076 [2024-11-28 05:13:31,552 INFO L226 Difference]: Without dead ends: 675 [2024-11-28 05:13:31,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:31,554 INFO L435 NwaCegarLoop]: 549 mSDtfsCounter, 1252 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:31,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1252 Valid, 1646 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:31,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-11-28 05:13:31,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 675. [2024-11-28 05:13:31,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 674 states have (on average 1.4718100890207715) internal successors, (992), 674 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:31,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 992 transitions. [2024-11-28 05:13:31,575 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 992 transitions. Word has length 216 [2024-11-28 05:13:31,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:31,576 INFO L471 AbstractCegarLoop]: Abstraction has 675 states and 992 transitions. [2024-11-28 05:13:31,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 5 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:31,576 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 992 transitions. [2024-11-28 05:13:31,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-28 05:13:31,579 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:31,579 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:31,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 05:13:31,580 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:31,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:31,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1984221122, now seen corresponding path program 1 times [2024-11-28 05:13:31,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:31,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117530917] [2024-11-28 05:13:31,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:31,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:32,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:33,015 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:33,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:33,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117530917] [2024-11-28 05:13:33,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117530917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:33,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:33,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:13:33,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736722782] [2024-11-28 05:13:33,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:33,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:13:33,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:33,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:13:33,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:33,017 INFO L87 Difference]: Start difference. First operand 675 states and 992 transitions. Second operand has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:33,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:33,230 INFO L93 Difference]: Finished difference Result 1019 states and 1503 transitions. [2024-11-28 05:13:33,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:13:33,231 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2024-11-28 05:13:33,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:33,234 INFO L225 Difference]: With dead ends: 1019 [2024-11-28 05:13:33,235 INFO L226 Difference]: Without dead ends: 682 [2024-11-28 05:13:33,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:13:33,236 INFO L435 NwaCegarLoop]: 546 mSDtfsCounter, 1229 mSDsluCounter, 2175 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 2721 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:33,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 2721 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:33,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2024-11-28 05:13:33,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 678. [2024-11-28 05:13:33,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 677 states have (on average 1.4711964549483014) internal successors, (996), 677 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:33,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 996 transitions. [2024-11-28 05:13:33,256 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 996 transitions. Word has length 217 [2024-11-28 05:13:33,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:33,257 INFO L471 AbstractCegarLoop]: Abstraction has 678 states and 996 transitions. [2024-11-28 05:13:33,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:33,257 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 996 transitions. [2024-11-28 05:13:33,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-28 05:13:33,260 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:33,261 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:33,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 05:13:33,261 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:33,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:33,262 INFO L85 PathProgramCache]: Analyzing trace with hash 864700535, now seen corresponding path program 1 times [2024-11-28 05:13:33,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:33,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283542796] [2024-11-28 05:13:33,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:33,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:34,592 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:34,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:34,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283542796] [2024-11-28 05:13:34,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283542796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:34,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:34,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:13:34,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105297228] [2024-11-28 05:13:34,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:34,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:13:34,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:34,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:13:34,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:34,596 INFO L87 Difference]: Start difference. First operand 678 states and 996 transitions. Second operand has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 7 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:34,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:34,791 INFO L93 Difference]: Finished difference Result 1084 states and 1596 transitions. [2024-11-28 05:13:34,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:13:34,792 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 7 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 218 [2024-11-28 05:13:34,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:34,795 INFO L225 Difference]: With dead ends: 1084 [2024-11-28 05:13:34,795 INFO L226 Difference]: Without dead ends: 684 [2024-11-28 05:13:34,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:13:34,798 INFO L435 NwaCegarLoop]: 546 mSDtfsCounter, 1270 mSDsluCounter, 1895 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1270 SdHoareTripleChecker+Valid, 2441 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:34,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1270 Valid, 2441 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:34,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2024-11-28 05:13:34,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 680. [2024-11-28 05:13:34,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 679 states have (on average 1.4698085419734905) internal successors, (998), 679 states have internal predecessors, (998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:34,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 998 transitions. [2024-11-28 05:13:34,816 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 998 transitions. Word has length 218 [2024-11-28 05:13:34,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:34,817 INFO L471 AbstractCegarLoop]: Abstraction has 680 states and 998 transitions. [2024-11-28 05:13:34,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 7 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:34,818 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 998 transitions. [2024-11-28 05:13:34,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-28 05:13:34,821 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:34,821 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:34,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 05:13:34,822 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:34,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:34,822 INFO L85 PathProgramCache]: Analyzing trace with hash -750976054, now seen corresponding path program 1 times [2024-11-28 05:13:34,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:34,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540731920] [2024-11-28 05:13:34,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:34,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:35,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:36,177 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:36,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:36,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540731920] [2024-11-28 05:13:36,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540731920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:36,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:36,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:13:36,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926203960] [2024-11-28 05:13:36,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:36,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:13:36,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:36,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:13:36,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:36,179 INFO L87 Difference]: Start difference. First operand 680 states and 998 transitions. Second operand has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:36,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:36,355 INFO L93 Difference]: Finished difference Result 1122 states and 1652 transitions. [2024-11-28 05:13:36,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:13:36,356 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 219 [2024-11-28 05:13:36,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:36,358 INFO L225 Difference]: With dead ends: 1122 [2024-11-28 05:13:36,359 INFO L226 Difference]: Without dead ends: 726 [2024-11-28 05:13:36,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:13:36,360 INFO L435 NwaCegarLoop]: 545 mSDtfsCounter, 1387 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 2556 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:36,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1387 Valid, 2556 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:36,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2024-11-28 05:13:36,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 682. [2024-11-28 05:13:36,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 681 states have (on average 1.4684287812041117) internal successors, (1000), 681 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:36,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1000 transitions. [2024-11-28 05:13:36,378 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1000 transitions. Word has length 219 [2024-11-28 05:13:36,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:36,379 INFO L471 AbstractCegarLoop]: Abstraction has 682 states and 1000 transitions. [2024-11-28 05:13:36,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:36,379 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1000 transitions. [2024-11-28 05:13:36,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-28 05:13:36,382 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:36,382 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:36,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 05:13:36,383 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:36,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:36,383 INFO L85 PathProgramCache]: Analyzing trace with hash 2125930342, now seen corresponding path program 1 times [2024-11-28 05:13:36,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:36,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579990008] [2024-11-28 05:13:36,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:36,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:36,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:37,715 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:37,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:37,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579990008] [2024-11-28 05:13:37,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579990008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:37,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:37,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:13:37,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443233177] [2024-11-28 05:13:37,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:37,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:13:37,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:37,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:13:37,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:37,717 INFO L87 Difference]: Start difference. First operand 682 states and 1000 transitions. Second operand has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:37,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:37,889 INFO L93 Difference]: Finished difference Result 1090 states and 1605 transitions. [2024-11-28 05:13:37,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:13:37,890 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 219 [2024-11-28 05:13:37,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:37,893 INFO L225 Difference]: With dead ends: 1090 [2024-11-28 05:13:37,893 INFO L226 Difference]: Without dead ends: 728 [2024-11-28 05:13:37,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:13:37,895 INFO L435 NwaCegarLoop]: 545 mSDtfsCounter, 1369 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1369 SdHoareTripleChecker+Valid, 2556 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:37,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1369 Valid, 2556 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:37,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2024-11-28 05:13:37,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 684. [2024-11-28 05:13:37,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 683 states have (on average 1.4670571010248903) internal successors, (1002), 683 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:37,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 1002 transitions. [2024-11-28 05:13:37,912 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 1002 transitions. Word has length 219 [2024-11-28 05:13:37,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:37,913 INFO L471 AbstractCegarLoop]: Abstraction has 684 states and 1002 transitions. [2024-11-28 05:13:37,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:37,913 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 1002 transitions. [2024-11-28 05:13:37,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-28 05:13:37,915 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:37,916 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:37,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 05:13:37,916 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:37,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:37,917 INFO L85 PathProgramCache]: Analyzing trace with hash -372495870, now seen corresponding path program 1 times [2024-11-28 05:13:37,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:37,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181952849] [2024-11-28 05:13:37,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:37,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:39,170 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:39,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:39,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181952849] [2024-11-28 05:13:39,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181952849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:39,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:39,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:13:39,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190242449] [2024-11-28 05:13:39,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:39,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:13:39,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:39,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:13:39,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:39,173 INFO L87 Difference]: Start difference. First operand 684 states and 1002 transitions. Second operand has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:39,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:39,365 INFO L93 Difference]: Finished difference Result 1067 states and 1571 transitions. [2024-11-28 05:13:39,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:13:39,365 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 219 [2024-11-28 05:13:39,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:39,369 INFO L225 Difference]: With dead ends: 1067 [2024-11-28 05:13:39,369 INFO L226 Difference]: Without dead ends: 730 [2024-11-28 05:13:39,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:13:39,370 INFO L435 NwaCegarLoop]: 545 mSDtfsCounter, 1350 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1350 SdHoareTripleChecker+Valid, 2640 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:39,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1350 Valid, 2640 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:39,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2024-11-28 05:13:39,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 690. [2024-11-28 05:13:39,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 689 states have (on average 1.4658925979680697) internal successors, (1010), 689 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:39,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1010 transitions. [2024-11-28 05:13:39,393 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1010 transitions. Word has length 219 [2024-11-28 05:13:39,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:39,394 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 1010 transitions. [2024-11-28 05:13:39,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:39,394 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1010 transitions. [2024-11-28 05:13:39,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-28 05:13:39,398 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:39,398 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:39,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 05:13:39,398 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:39,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:39,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1034544030, now seen corresponding path program 1 times [2024-11-28 05:13:39,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:39,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202099273] [2024-11-28 05:13:39,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:39,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:40,631 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:40,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:40,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202099273] [2024-11-28 05:13:40,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202099273] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:13:40,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451068703] [2024-11-28 05:13:40,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:40,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:13:40,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:40,637 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:13:40,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:13:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:41,472 INFO L256 TraceCheckSpWp]: Trace formula consists of 1346 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 05:13:41,493 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:41,840 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:41,841 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:13:41,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451068703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:41,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:13:41,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2024-11-28 05:13:41,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326053227] [2024-11-28 05:13:41,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:41,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:13:41,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:41,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:13:41,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:13:41,844 INFO L87 Difference]: Start difference. First operand 690 states and 1010 transitions. Second operand has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:42,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:42,185 INFO L93 Difference]: Finished difference Result 1300 states and 1904 transitions. [2024-11-28 05:13:42,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:13:42,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 219 [2024-11-28 05:13:42,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:42,189 INFO L225 Difference]: With dead ends: 1300 [2024-11-28 05:13:42,189 INFO L226 Difference]: Without dead ends: 689 [2024-11-28 05:13:42,190 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:13:42,190 INFO L435 NwaCegarLoop]: 480 mSDtfsCounter, 1346 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:42,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1346 Valid, 1436 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 05:13:42,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2024-11-28 05:13:42,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 689. [2024-11-28 05:13:42,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 688 states have (on average 1.4636627906976745) internal successors, (1007), 688 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:42,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1007 transitions. [2024-11-28 05:13:42,208 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1007 transitions. Word has length 219 [2024-11-28 05:13:42,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:42,209 INFO L471 AbstractCegarLoop]: Abstraction has 689 states and 1007 transitions. [2024-11-28 05:13:42,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:42,209 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1007 transitions. [2024-11-28 05:13:42,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-28 05:13:42,211 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:42,211 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:42,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 05:13:42,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:13:42,412 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:42,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:42,413 INFO L85 PathProgramCache]: Analyzing trace with hash -702625767, now seen corresponding path program 1 times [2024-11-28 05:13:42,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:42,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434981475] [2024-11-28 05:13:42,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:42,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:43,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:43,714 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:43,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:43,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434981475] [2024-11-28 05:13:43,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434981475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:43,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:43,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:13:43,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404416248] [2024-11-28 05:13:43,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:43,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:13:43,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:43,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:13:43,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:13:43,717 INFO L87 Difference]: Start difference. First operand 689 states and 1007 transitions. Second operand has 5 states, 5 states have (on average 44.0) internal successors, (220), 5 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:43,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:43,853 INFO L93 Difference]: Finished difference Result 1207 states and 1766 transitions. [2024-11-28 05:13:43,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:13:43,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.0) internal successors, (220), 5 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 220 [2024-11-28 05:13:43,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:43,856 INFO L225 Difference]: With dead ends: 1207 [2024-11-28 05:13:43,857 INFO L226 Difference]: Without dead ends: 689 [2024-11-28 05:13:43,858 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:43,858 INFO L435 NwaCegarLoop]: 550 mSDtfsCounter, 1295 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:43,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 1647 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:43,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2024-11-28 05:13:43,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 689. [2024-11-28 05:13:43,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 688 states have (on average 1.4622093023255813) internal successors, (1006), 688 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:43,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1006 transitions. [2024-11-28 05:13:43,874 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1006 transitions. Word has length 220 [2024-11-28 05:13:43,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:43,874 INFO L471 AbstractCegarLoop]: Abstraction has 689 states and 1006 transitions. [2024-11-28 05:13:43,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.0) internal successors, (220), 5 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:43,875 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1006 transitions. [2024-11-28 05:13:43,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-28 05:13:43,876 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:43,877 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:43,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 05:13:43,877 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:43,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:43,878 INFO L85 PathProgramCache]: Analyzing trace with hash -608140986, now seen corresponding path program 1 times [2024-11-28 05:13:43,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:43,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797163298] [2024-11-28 05:13:43,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:43,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:45,134 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:45,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:45,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797163298] [2024-11-28 05:13:45,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797163298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:45,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:45,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:13:45,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479741042] [2024-11-28 05:13:45,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:45,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:13:45,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:45,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:13:45,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:13:45,136 INFO L87 Difference]: Start difference. First operand 689 states and 1006 transitions. Second operand has 6 states, 6 states have (on average 36.833333333333336) internal successors, (221), 6 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:45,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:45,253 INFO L93 Difference]: Finished difference Result 1171 states and 1713 transitions. [2024-11-28 05:13:45,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:13:45,254 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 36.833333333333336) internal successors, (221), 6 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 221 [2024-11-28 05:13:45,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:45,256 INFO L225 Difference]: With dead ends: 1171 [2024-11-28 05:13:45,257 INFO L226 Difference]: Without dead ends: 687 [2024-11-28 05:13:45,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:13:45,261 INFO L435 NwaCegarLoop]: 550 mSDtfsCounter, 1277 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1277 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:45,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1277 Valid, 1647 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:45,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2024-11-28 05:13:45,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 687. [2024-11-28 05:13:45,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 686 states have (on average 1.4620991253644315) internal successors, (1003), 686 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:45,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 1003 transitions. [2024-11-28 05:13:45,278 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 1003 transitions. Word has length 221 [2024-11-28 05:13:45,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:45,278 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 1003 transitions. [2024-11-28 05:13:45,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.833333333333336) internal successors, (221), 6 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:45,278 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 1003 transitions. [2024-11-28 05:13:45,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-28 05:13:45,280 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:45,280 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:45,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 05:13:45,281 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:45,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:45,281 INFO L85 PathProgramCache]: Analyzing trace with hash 2144206562, now seen corresponding path program 1 times [2024-11-28 05:13:45,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:45,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262079230] [2024-11-28 05:13:45,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:45,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:47,596 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:47,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:47,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262079230] [2024-11-28 05:13:47,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262079230] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:13:47,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072065658] [2024-11-28 05:13:47,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:47,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:13:47,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:47,601 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:13:47,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:13:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:48,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 1348 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-28 05:13:48,678 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:50,085 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:50,086 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:13:51,392 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:51,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072065658] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:13:51,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:13:51,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14, 11] total 31 [2024-11-28 05:13:51,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995547893] [2024-11-28 05:13:51,393 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:13:51,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-28 05:13:51,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:51,394 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-28 05:13:51,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=794, Unknown=0, NotChecked=0, Total=930 [2024-11-28 05:13:51,395 INFO L87 Difference]: Start difference. First operand 687 states and 1003 transitions. Second operand has 31 states, 31 states have (on average 20.93548387096774) internal successors, (649), 31 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:53,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:53,218 INFO L93 Difference]: Finished difference Result 2008 states and 2931 transitions. [2024-11-28 05:13:53,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 05:13:53,219 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 20.93548387096774) internal successors, (649), 31 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 221 [2024-11-28 05:13:53,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:53,222 INFO L225 Difference]: With dead ends: 2008 [2024-11-28 05:13:53,222 INFO L226 Difference]: Without dead ends: 1396 [2024-11-28 05:13:53,223 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=224, Invalid=1258, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 05:13:53,224 INFO L435 NwaCegarLoop]: 901 mSDtfsCounter, 4967 mSDsluCounter, 14394 mSDsCounter, 0 mSdLazyCounter, 2076 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4967 SdHoareTripleChecker+Valid, 15295 SdHoareTripleChecker+Invalid, 2081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:53,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4967 Valid, 15295 Invalid, 2081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2076 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 05:13:53,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1396 states. [2024-11-28 05:13:53,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1396 to 1016. [2024-11-28 05:13:53,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 1015 states have (on average 1.4532019704433496) internal successors, (1475), 1015 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:53,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1475 transitions. [2024-11-28 05:13:53,245 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1475 transitions. Word has length 221 [2024-11-28 05:13:53,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:53,246 INFO L471 AbstractCegarLoop]: Abstraction has 1016 states and 1475 transitions. [2024-11-28 05:13:53,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 20.93548387096774) internal successors, (649), 31 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:53,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1475 transitions. [2024-11-28 05:13:53,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-28 05:13:53,273 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:53,273 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:53,287 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 05:13:53,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:13:53,474 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:53,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:53,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1886729116, now seen corresponding path program 1 times [2024-11-28 05:13:53,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:53,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716806531] [2024-11-28 05:13:53,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:53,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:54,113 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:54,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:54,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716806531] [2024-11-28 05:13:54,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716806531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:54,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:54,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:13:54,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368027659] [2024-11-28 05:13:54,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:54,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:13:54,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:54,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:13:54,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:13:54,116 INFO L87 Difference]: Start difference. First operand 1016 states and 1475 transitions. Second operand has 5 states, 5 states have (on average 44.4) internal successors, (222), 5 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:54,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:54,204 INFO L93 Difference]: Finished difference Result 1645 states and 2394 transitions. [2024-11-28 05:13:54,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:13:54,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.4) internal successors, (222), 5 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 222 [2024-11-28 05:13:54,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:54,208 INFO L225 Difference]: With dead ends: 1645 [2024-11-28 05:13:54,208 INFO L226 Difference]: Without dead ends: 1031 [2024-11-28 05:13:54,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:54,210 INFO L435 NwaCegarLoop]: 552 mSDtfsCounter, 1405 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1405 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:54,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1405 Valid, 1651 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:54,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2024-11-28 05:13:54,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1013. [2024-11-28 05:13:54,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 1012 states have (on average 1.4515810276679841) internal successors, (1469), 1012 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:54,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1469 transitions. [2024-11-28 05:13:54,230 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1469 transitions. Word has length 222 [2024-11-28 05:13:54,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:54,230 INFO L471 AbstractCegarLoop]: Abstraction has 1013 states and 1469 transitions. [2024-11-28 05:13:54,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.4) internal successors, (222), 5 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:54,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1469 transitions. [2024-11-28 05:13:54,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-28 05:13:54,252 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:54,252 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:54,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 05:13:54,252 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:54,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:54,253 INFO L85 PathProgramCache]: Analyzing trace with hash -786296213, now seen corresponding path program 1 times [2024-11-28 05:13:54,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:54,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779380974] [2024-11-28 05:13:54,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:54,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:54,866 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:54,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:54,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779380974] [2024-11-28 05:13:54,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779380974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:54,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:54,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:13:54,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576516491] [2024-11-28 05:13:54,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:54,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:13:54,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:54,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:13:54,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:13:54,868 INFO L87 Difference]: Start difference. First operand 1013 states and 1469 transitions. Second operand has 6 states, 6 states have (on average 37.0) internal successors, (222), 6 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:54,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:54,960 INFO L93 Difference]: Finished difference Result 1350 states and 1970 transitions. [2024-11-28 05:13:54,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:13:54,961 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.0) internal successors, (222), 6 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 222 [2024-11-28 05:13:54,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:54,963 INFO L225 Difference]: With dead ends: 1350 [2024-11-28 05:13:54,963 INFO L226 Difference]: Without dead ends: 735 [2024-11-28 05:13:54,964 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:13:54,965 INFO L435 NwaCegarLoop]: 551 mSDtfsCounter, 1375 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:54,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1375 Valid, 1647 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:54,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2024-11-28 05:13:54,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 735. [2024-11-28 05:13:54,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 734 states have (on average 1.4591280653950953) internal successors, (1071), 734 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:54,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1071 transitions. [2024-11-28 05:13:54,983 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1071 transitions. Word has length 222 [2024-11-28 05:13:54,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:54,983 INFO L471 AbstractCegarLoop]: Abstraction has 735 states and 1071 transitions. [2024-11-28 05:13:54,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.0) internal successors, (222), 6 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:54,984 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1071 transitions. [2024-11-28 05:13:54,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2024-11-28 05:13:54,987 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:54,987 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:54,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 05:13:54,988 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:54,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:54,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1862192727, now seen corresponding path program 1 times [2024-11-28 05:13:54,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:54,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917266134] [2024-11-28 05:13:54,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:54,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:00,180 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:14:00,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:14:00,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917266134] [2024-11-28 05:14:00,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917266134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:14:00,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:14:00,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 05:14:00,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860152382] [2024-11-28 05:14:00,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:14:00,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 05:14:00,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:14:00,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 05:14:00,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:14:00,183 INFO L87 Difference]: Start difference. First operand 735 states and 1071 transitions. Second operand has 9 states, 9 states have (on average 43.111111111111114) internal successors, (388), 9 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:14:00,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:14:00,706 INFO L93 Difference]: Finished difference Result 2012 states and 2974 transitions. [2024-11-28 05:14:00,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:14:00,707 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 43.111111111111114) internal successors, (388), 9 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 388 [2024-11-28 05:14:00,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:14:00,712 INFO L225 Difference]: With dead ends: 2012 [2024-11-28 05:14:00,713 INFO L226 Difference]: Without dead ends: 1675 [2024-11-28 05:14:00,714 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:14:00,715 INFO L435 NwaCegarLoop]: 919 mSDtfsCounter, 2032 mSDsluCounter, 4879 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2032 SdHoareTripleChecker+Valid, 5798 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:14:00,715 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2032 Valid, 5798 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 05:14:00,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2024-11-28 05:14:00,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 1089. [2024-11-28 05:14:00,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1089 states, 1088 states have (on average 1.4678308823529411) internal successors, (1597), 1088 states have internal predecessors, (1597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:14:00,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 1597 transitions. [2024-11-28 05:14:00,757 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 1597 transitions. Word has length 388 [2024-11-28 05:14:00,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:14:00,758 INFO L471 AbstractCegarLoop]: Abstraction has 1089 states and 1597 transitions. [2024-11-28 05:14:00,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 43.111111111111114) internal successors, (388), 9 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:14:00,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 1597 transitions. [2024-11-28 05:14:00,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-11-28 05:14:00,764 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:14:00,765 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:00,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 05:14:00,765 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:14:00,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:14:00,766 INFO L85 PathProgramCache]: Analyzing trace with hash 246447038, now seen corresponding path program 1 times [2024-11-28 05:14:00,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:14:00,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224327430] [2024-11-28 05:14:00,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:00,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:14:04,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:08,437 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 141 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:14:08,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:14:08,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224327430] [2024-11-28 05:14:08,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224327430] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:14:08,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240062737] [2024-11-28 05:14:08,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:08,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:14:08,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:14:08,440 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:14:08,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:14:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:10,105 INFO L256 TraceCheckSpWp]: Trace formula consists of 2475 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-11-28 05:14:10,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:14:11,912 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 141 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:14:11,912 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:14:14,545 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 140 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:14:14,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240062737] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:14:14,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:14:14,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 15] total 36 [2024-11-28 05:14:14,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742181265] [2024-11-28 05:14:14,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:14:14,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-28 05:14:14,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:14:14,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-28 05:14:14,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=1091, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 05:14:14,549 INFO L87 Difference]: Start difference. First operand 1089 states and 1597 transitions. Second operand has 36 states, 36 states have (on average 23.944444444444443) internal successors, (862), 36 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:14:18,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:14:18,449 INFO L93 Difference]: Finished difference Result 2553 states and 3777 transitions. [2024-11-28 05:14:18,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-28 05:14:18,450 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 23.944444444444443) internal successors, (862), 36 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2024-11-28 05:14:18,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:14:18,456 INFO L225 Difference]: With dead ends: 2553 [2024-11-28 05:14:18,456 INFO L226 Difference]: Without dead ends: 1885 [2024-11-28 05:14:18,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 838 GetRequests, 760 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1426 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1171, Invalid=5149, Unknown=0, NotChecked=0, Total=6320 [2024-11-28 05:14:18,460 INFO L435 NwaCegarLoop]: 840 mSDtfsCounter, 12228 mSDsluCounter, 14183 mSDsCounter, 0 mSdLazyCounter, 2364 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12228 SdHoareTripleChecker+Valid, 15023 SdHoareTripleChecker+Invalid, 2399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:14:18,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12228 Valid, 15023 Invalid, 2399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2364 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 05:14:18,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1885 states. [2024-11-28 05:14:18,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1885 to 1194. [2024-11-28 05:14:18,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1194 states, 1193 states have (on average 1.465213746856664) internal successors, (1748), 1193 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:14:18,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 1748 transitions. [2024-11-28 05:14:18,488 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 1748 transitions. Word has length 389 [2024-11-28 05:14:18,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:14:18,489 INFO L471 AbstractCegarLoop]: Abstraction has 1194 states and 1748 transitions. [2024-11-28 05:14:18,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 23.944444444444443) internal successors, (862), 36 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:14:18,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 1748 transitions. [2024-11-28 05:14:18,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-11-28 05:14:18,493 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:14:18,494 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:18,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 05:14:18,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-28 05:14:18,695 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:14:18,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:14:18,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1925666112, now seen corresponding path program 1 times [2024-11-28 05:14:18,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:14:18,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411937145] [2024-11-28 05:14:18,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:18,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:14:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:25,134 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 139 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:14:25,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:14:25,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411937145] [2024-11-28 05:14:25,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411937145] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:14:25,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107637452] [2024-11-28 05:14:25,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:25,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:14:25,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:14:25,141 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:14:25,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:14:26,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:26,349 INFO L256 TraceCheckSpWp]: Trace formula consists of 2478 conjuncts, 74 conjuncts are in the unsatisfiable core [2024-11-28 05:14:26,361 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:14:28,255 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 45 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:14:28,255 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:14:30,440 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 45 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:14:30,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107637452] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:14:30,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:14:30,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 34 [2024-11-28 05:14:30,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109080473] [2024-11-28 05:14:30,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:14:30,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-28 05:14:30,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:14:30,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-28 05:14:30,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=959, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 05:14:30,444 INFO L87 Difference]: Start difference. First operand 1194 states and 1748 transitions. Second operand has 34 states, 34 states have (on average 32.23529411764706) internal successors, (1096), 34 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:14:33,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:14:33,612 INFO L93 Difference]: Finished difference Result 3953 states and 5826 transitions. [2024-11-28 05:14:33,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-28 05:14:33,612 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 32.23529411764706) internal successors, (1096), 34 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 390 [2024-11-28 05:14:33,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:14:33,620 INFO L225 Difference]: With dead ends: 3953 [2024-11-28 05:14:33,621 INFO L226 Difference]: Without dead ends: 2898 [2024-11-28 05:14:33,623 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 830 GetRequests, 761 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1068 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=900, Invalid=4070, Unknown=0, NotChecked=0, Total=4970 [2024-11-28 05:14:33,624 INFO L435 NwaCegarLoop]: 857 mSDtfsCounter, 12498 mSDsluCounter, 13826 mSDsCounter, 0 mSdLazyCounter, 2658 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12498 SdHoareTripleChecker+Valid, 14683 SdHoareTripleChecker+Invalid, 2678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:14:33,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12498 Valid, 14683 Invalid, 2678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2658 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 05:14:33,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2898 states. [2024-11-28 05:14:33,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2898 to 2497. [2024-11-28 05:14:33,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2497 states, 2496 states have (on average 1.470753205128205) internal successors, (3671), 2496 states have internal predecessors, (3671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:14:33,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2497 states to 2497 states and 3671 transitions. [2024-11-28 05:14:33,667 INFO L78 Accepts]: Start accepts. Automaton has 2497 states and 3671 transitions. Word has length 390 [2024-11-28 05:14:33,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:14:33,668 INFO L471 AbstractCegarLoop]: Abstraction has 2497 states and 3671 transitions. [2024-11-28 05:14:33,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 32.23529411764706) internal successors, (1096), 34 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:14:33,669 INFO L276 IsEmpty]: Start isEmpty. Operand 2497 states and 3671 transitions. [2024-11-28 05:14:33,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-28 05:14:33,672 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:14:33,672 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:33,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 05:14:33,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-28 05:14:33,873 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:14:33,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:14:33,874 INFO L85 PathProgramCache]: Analyzing trace with hash -605102104, now seen corresponding path program 1 times [2024-11-28 05:14:33,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:14:33,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158797988] [2024-11-28 05:14:33,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:33,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:14:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:37,410 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 164 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:14:37,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:14:37,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158797988] [2024-11-28 05:14:37,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158797988] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:14:37,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43039333] [2024-11-28 05:14:37,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:37,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:14:37,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:14:37,412 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:14:37,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 05:14:38,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:38,845 INFO L256 TraceCheckSpWp]: Trace formula consists of 2485 conjuncts, 70 conjuncts are in the unsatisfiable core [2024-11-28 05:14:38,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:14:39,523 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 139 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:14:39,523 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:14:40,519 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 163 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:14:40,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43039333] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:14:40,519 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:14:40,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 16, 11] total 29 [2024-11-28 05:14:40,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311015839] [2024-11-28 05:14:40,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:14:40,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-28 05:14:40,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:14:40,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-28 05:14:40,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=709, Unknown=0, NotChecked=0, Total=812 [2024-11-28 05:14:40,522 INFO L87 Difference]: Start difference. First operand 2497 states and 3671 transitions. Second operand has 29 states, 29 states have (on average 24.17241379310345) internal successors, (701), 29 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:14:44,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:14:44,667 INFO L93 Difference]: Finished difference Result 18299 states and 27057 transitions. [2024-11-28 05:14:44,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2024-11-28 05:14:44,668 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 24.17241379310345) internal successors, (701), 29 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-11-28 05:14:44,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:14:44,700 INFO L225 Difference]: With dead ends: 18299 [2024-11-28 05:14:44,700 INFO L226 Difference]: Without dead ends: 15947 [2024-11-28 05:14:44,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 874 GetRequests, 768 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3837 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1543, Invalid=10013, Unknown=0, NotChecked=0, Total=11556 [2024-11-28 05:14:44,707 INFO L435 NwaCegarLoop]: 857 mSDtfsCounter, 18463 mSDsluCounter, 10132 mSDsCounter, 0 mSdLazyCounter, 2236 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18463 SdHoareTripleChecker+Valid, 10989 SdHoareTripleChecker+Invalid, 2267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:14:44,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18463 Valid, 10989 Invalid, 2267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2236 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 05:14:44,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15947 states. [2024-11-28 05:14:44,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15947 to 6663. [2024-11-28 05:14:44,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6663 states, 6662 states have (on average 1.4671269888922245) internal successors, (9774), 6662 states have internal predecessors, (9774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:14:44,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6663 states to 6663 states and 9774 transitions. [2024-11-28 05:14:44,855 INFO L78 Accepts]: Start accepts. Automaton has 6663 states and 9774 transitions. Word has length 393 [2024-11-28 05:14:44,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:14:44,855 INFO L471 AbstractCegarLoop]: Abstraction has 6663 states and 9774 transitions. [2024-11-28 05:14:44,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 24.17241379310345) internal successors, (701), 29 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:14:44,855 INFO L276 IsEmpty]: Start isEmpty. Operand 6663 states and 9774 transitions. [2024-11-28 05:14:44,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-28 05:14:44,861 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:14:44,861 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:44,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 05:14:45,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-28 05:14:45,062 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:14:45,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:14:45,062 INFO L85 PathProgramCache]: Analyzing trace with hash -598715772, now seen corresponding path program 1 times [2024-11-28 05:14:45,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:14:45,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252562372] [2024-11-28 05:14:45,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:45,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:14:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:52,347 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 127 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:14:52,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:14:52,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252562372] [2024-11-28 05:14:52,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252562372] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:14:52,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853719183] [2024-11-28 05:14:52,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:52,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:14:52,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:14:52,350 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:14:52,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 05:14:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:53,988 INFO L256 TraceCheckSpWp]: Trace formula consists of 2483 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-11-28 05:14:54,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:14:55,294 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 127 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:14:55,294 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:14:58,273 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 127 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:14:58,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853719183] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:14:58,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:14:58,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 12] total 32 [2024-11-28 05:14:58,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787642232] [2024-11-28 05:14:58,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:14:58,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-28 05:14:58,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:14:58,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-28 05:14:58,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=872, Unknown=0, NotChecked=0, Total=992 [2024-11-28 05:14:58,276 INFO L87 Difference]: Start difference. First operand 6663 states and 9774 transitions. Second operand has 32 states, 32 states have (on average 28.71875) internal successors, (919), 32 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:02,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:15:02,817 INFO L93 Difference]: Finished difference Result 18555 states and 27332 transitions. [2024-11-28 05:15:02,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-11-28 05:15:02,817 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 28.71875) internal successors, (919), 32 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-11-28 05:15:02,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:15:02,844 INFO L225 Difference]: With dead ends: 18555 [2024-11-28 05:15:02,845 INFO L226 Difference]: Without dead ends: 13637 [2024-11-28 05:15:02,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 868 GetRequests, 772 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2700 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1648, Invalid=7858, Unknown=0, NotChecked=0, Total=9506 [2024-11-28 05:15:02,857 INFO L435 NwaCegarLoop]: 842 mSDtfsCounter, 17540 mSDsluCounter, 16762 mSDsCounter, 0 mSdLazyCounter, 2411 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17540 SdHoareTripleChecker+Valid, 17604 SdHoareTripleChecker+Invalid, 2459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:15:02,858 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17540 Valid, 17604 Invalid, 2459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2411 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 05:15:02,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13637 states. [2024-11-28 05:15:02,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13637 to 9835. [2024-11-28 05:15:02,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9835 states, 9834 states have (on average 1.4669513931258897) internal successors, (14426), 9834 states have internal predecessors, (14426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:03,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9835 states to 9835 states and 14426 transitions. [2024-11-28 05:15:03,011 INFO L78 Accepts]: Start accepts. Automaton has 9835 states and 14426 transitions. Word has length 393 [2024-11-28 05:15:03,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:15:03,012 INFO L471 AbstractCegarLoop]: Abstraction has 9835 states and 14426 transitions. [2024-11-28 05:15:03,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 28.71875) internal successors, (919), 32 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:03,012 INFO L276 IsEmpty]: Start isEmpty. Operand 9835 states and 14426 transitions. [2024-11-28 05:15:03,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-11-28 05:15:03,017 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:15:03,020 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:03,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 05:15:03,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:15:03,220 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:15:03,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:15:03,221 INFO L85 PathProgramCache]: Analyzing trace with hash 37182663, now seen corresponding path program 1 times [2024-11-28 05:15:03,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:15:03,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004863882] [2024-11-28 05:15:03,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:15:03,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:15:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:15:10,132 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 111 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:15:10,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:15:10,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004863882] [2024-11-28 05:15:10,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004863882] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:15:10,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980211026] [2024-11-28 05:15:10,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:15:10,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:15:10,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:15:10,135 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:15:10,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 05:15:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:15:12,039 INFO L256 TraceCheckSpWp]: Trace formula consists of 2487 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-28 05:15:12,055 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:15:13,746 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 68 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:15:13,746 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:15:14,413 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 05:15:14,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980211026] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 05:15:14,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:15:14,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14, 10] total 27 [2024-11-28 05:15:14,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901059348] [2024-11-28 05:15:14,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:15:14,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:15:14,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:15:14,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:15:14,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=598, Unknown=0, NotChecked=0, Total=702 [2024-11-28 05:15:14,416 INFO L87 Difference]: Start difference. First operand 9835 states and 14426 transitions. Second operand has 7 states, 7 states have (on average 51.42857142857143) internal successors, (360), 7 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:14,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:15:14,712 INFO L93 Difference]: Finished difference Result 18983 states and 27929 transitions. [2024-11-28 05:15:14,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:15:14,713 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 51.42857142857143) internal successors, (360), 7 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 395 [2024-11-28 05:15:14,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:15:14,736 INFO L225 Difference]: With dead ends: 18983 [2024-11-28 05:15:14,736 INFO L226 Difference]: Without dead ends: 10781 [2024-11-28 05:15:14,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 808 GetRequests, 781 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=121, Invalid=691, Unknown=0, NotChecked=0, Total=812 [2024-11-28 05:15:14,745 INFO L435 NwaCegarLoop]: 911 mSDtfsCounter, 599 mSDsluCounter, 3144 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 4055 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:15:14,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 4055 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:15:14,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10781 states. [2024-11-28 05:15:14,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10781 to 10521. [2024-11-28 05:15:14,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10521 states, 10520 states have (on average 1.4673003802281368) internal successors, (15436), 10520 states have internal predecessors, (15436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:14,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10521 states to 10521 states and 15436 transitions. [2024-11-28 05:15:14,893 INFO L78 Accepts]: Start accepts. Automaton has 10521 states and 15436 transitions. Word has length 395 [2024-11-28 05:15:14,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:15:14,893 INFO L471 AbstractCegarLoop]: Abstraction has 10521 states and 15436 transitions. [2024-11-28 05:15:14,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.42857142857143) internal successors, (360), 7 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:14,894 INFO L276 IsEmpty]: Start isEmpty. Operand 10521 states and 15436 transitions. [2024-11-28 05:15:14,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2024-11-28 05:15:14,898 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:15:14,901 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:14,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 05:15:15,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-28 05:15:15,102 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:15:15,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:15:15,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1968821155, now seen corresponding path program 1 times [2024-11-28 05:15:15,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:15:15,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730156727] [2024-11-28 05:15:15,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:15:15,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:15:19,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:15:22,170 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 133 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:15:22,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:15:22,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730156727] [2024-11-28 05:15:22,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730156727] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:15:22,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051740129] [2024-11-28 05:15:22,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:15:22,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:15:22,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:15:22,172 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:15:22,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 05:15:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:15:23,968 INFO L256 TraceCheckSpWp]: Trace formula consists of 2490 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-28 05:15:23,978 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:15:25,561 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 68 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:15:25,561 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:15:26,150 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 05:15:26,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051740129] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 05:15:26,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:15:26,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13, 10] total 26 [2024-11-28 05:15:26,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605017747] [2024-11-28 05:15:26,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:15:26,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:15:26,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:15:26,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:15:26,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=547, Unknown=0, NotChecked=0, Total=650 [2024-11-28 05:15:26,152 INFO L87 Difference]: Start difference. First operand 10521 states and 15436 transitions. Second operand has 7 states, 7 states have (on average 51.57142857142857) internal successors, (361), 7 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:26,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:15:26,367 INFO L93 Difference]: Finished difference Result 20677 states and 30423 transitions. [2024-11-28 05:15:26,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:15:26,367 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 51.57142857142857) internal successors, (361), 7 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 396 [2024-11-28 05:15:26,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:15:26,378 INFO L225 Difference]: With dead ends: 20677 [2024-11-28 05:15:26,378 INFO L226 Difference]: Without dead ends: 11405 [2024-11-28 05:15:26,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 808 GetRequests, 782 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=636, Unknown=0, NotChecked=0, Total=756 [2024-11-28 05:15:26,387 INFO L435 NwaCegarLoop]: 912 mSDtfsCounter, 403 mSDsluCounter, 3690 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 4602 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:15:26,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 4602 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:15:26,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11405 states. [2024-11-28 05:15:26,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11405 to 10649. [2024-11-28 05:15:26,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10649 states, 10648 states have (on average 1.4665664913598797) internal successors, (15616), 10648 states have internal predecessors, (15616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:26,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10649 states to 10649 states and 15616 transitions. [2024-11-28 05:15:26,526 INFO L78 Accepts]: Start accepts. Automaton has 10649 states and 15616 transitions. Word has length 396 [2024-11-28 05:15:26,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:15:26,527 INFO L471 AbstractCegarLoop]: Abstraction has 10649 states and 15616 transitions. [2024-11-28 05:15:26,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.57142857142857) internal successors, (361), 7 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:26,527 INFO L276 IsEmpty]: Start isEmpty. Operand 10649 states and 15616 transitions. [2024-11-28 05:15:26,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2024-11-28 05:15:26,531 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:15:26,532 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:26,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 05:15:26,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:15:26,732 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:15:26,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:15:26,734 INFO L85 PathProgramCache]: Analyzing trace with hash 728273599, now seen corresponding path program 1 times [2024-11-28 05:15:26,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:15:26,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276978451] [2024-11-28 05:15:26,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:15:26,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:15:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:15:33,479 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 134 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:15:33,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:15:33,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276978451] [2024-11-28 05:15:33,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276978451] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:15:33,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657468749] [2024-11-28 05:15:33,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:15:33,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:15:33,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:15:33,481 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:15:33,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 05:15:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:15:35,173 INFO L256 TraceCheckSpWp]: Trace formula consists of 2493 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-28 05:15:35,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:15:36,608 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 68 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:15:36,608 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:15:37,134 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 05:15:37,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657468749] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 05:15:37,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:15:37,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13, 10] total 26 [2024-11-28 05:15:37,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469522232] [2024-11-28 05:15:37,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:15:37,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:15:37,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:15:37,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:15:37,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=545, Unknown=0, NotChecked=0, Total=650 [2024-11-28 05:15:37,137 INFO L87 Difference]: Start difference. First operand 10649 states and 15616 transitions. Second operand has 7 states, 7 states have (on average 51.714285714285715) internal successors, (362), 7 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:37,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:15:37,332 INFO L93 Difference]: Finished difference Result 21573 states and 31735 transitions. [2024-11-28 05:15:37,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:15:37,332 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 51.714285714285715) internal successors, (362), 7 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 397 [2024-11-28 05:15:37,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:15:37,340 INFO L225 Difference]: With dead ends: 21573 [2024-11-28 05:15:37,340 INFO L226 Difference]: Without dead ends: 11789 [2024-11-28 05:15:37,347 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 808 GetRequests, 782 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=634, Unknown=0, NotChecked=0, Total=756 [2024-11-28 05:15:37,347 INFO L435 NwaCegarLoop]: 914 mSDtfsCounter, 897 mSDsluCounter, 2613 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 3527 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:15:37,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 3527 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:15:37,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11789 states. [2024-11-28 05:15:37,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11789 to 10777. [2024-11-28 05:15:37,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10777 states, 10776 states have (on average 1.4658500371195249) internal successors, (15796), 10776 states have internal predecessors, (15796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:37,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10777 states to 10777 states and 15796 transitions. [2024-11-28 05:15:37,498 INFO L78 Accepts]: Start accepts. Automaton has 10777 states and 15796 transitions. Word has length 397 [2024-11-28 05:15:37,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:15:37,498 INFO L471 AbstractCegarLoop]: Abstraction has 10777 states and 15796 transitions. [2024-11-28 05:15:37,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.714285714285715) internal successors, (362), 7 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:37,499 INFO L276 IsEmpty]: Start isEmpty. Operand 10777 states and 15796 transitions. [2024-11-28 05:15:37,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2024-11-28 05:15:37,503 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:15:37,504 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:37,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 05:15:37,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-28 05:15:37,705 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:15:37,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:15:37,705 INFO L85 PathProgramCache]: Analyzing trace with hash -292320155, now seen corresponding path program 1 times [2024-11-28 05:15:37,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:15:37,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831519427] [2024-11-28 05:15:37,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:15:37,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:15:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:15:42,795 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-28 05:15:42,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:15:42,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831519427] [2024-11-28 05:15:42,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831519427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:15:42,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:15:42,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:15:42,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004061641] [2024-11-28 05:15:42,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:15:42,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:15:42,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:15:42,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:15:42,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:15:42,797 INFO L87 Difference]: Start difference. First operand 10777 states and 15796 transitions. Second operand has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:42,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:15:42,957 INFO L93 Difference]: Finished difference Result 25511 states and 37473 transitions. [2024-11-28 05:15:42,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:15:42,957 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 398 [2024-11-28 05:15:42,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:15:42,969 INFO L225 Difference]: With dead ends: 25511 [2024-11-28 05:15:42,969 INFO L226 Difference]: Without dead ends: 16623 [2024-11-28 05:15:42,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:15:42,976 INFO L435 NwaCegarLoop]: 549 mSDtfsCounter, 304 mSDsluCounter, 2523 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:15:42,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 3072 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:15:42,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16623 states. [2024-11-28 05:15:43,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16623 to 13487. [2024-11-28 05:15:43,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13487 states, 13486 states have (on average 1.4644816847100697) internal successors, (19750), 13486 states have internal predecessors, (19750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:43,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13487 states to 13487 states and 19750 transitions. [2024-11-28 05:15:43,119 INFO L78 Accepts]: Start accepts. Automaton has 13487 states and 19750 transitions. Word has length 398 [2024-11-28 05:15:43,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:15:43,119 INFO L471 AbstractCegarLoop]: Abstraction has 13487 states and 19750 transitions. [2024-11-28 05:15:43,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:43,120 INFO L276 IsEmpty]: Start isEmpty. Operand 13487 states and 19750 transitions. [2024-11-28 05:15:43,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2024-11-28 05:15:43,125 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:15:43,126 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:43,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-28 05:15:43,126 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:15:43,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:15:43,127 INFO L85 PathProgramCache]: Analyzing trace with hash -409336602, now seen corresponding path program 1 times [2024-11-28 05:15:43,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:15:43,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682234507] [2024-11-28 05:15:43,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:15:43,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:15:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:15:48,755 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 111 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:15:48,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:15:48,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682234507] [2024-11-28 05:15:48,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682234507] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:15:48,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228353092] [2024-11-28 05:15:48,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:15:48,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:15:48,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:15:48,757 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:15:48,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 05:15:50,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:15:50,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 2499 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-11-28 05:15:50,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:15:51,662 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 98 proven. 101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:15:51,662 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:15:52,108 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 05:15:52,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228353092] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 05:15:52,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:15:52,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12, 12] total 29 [2024-11-28 05:15:52,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504843007] [2024-11-28 05:15:52,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:15:52,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 05:15:52,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:15:52,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 05:15:52,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=698, Unknown=0, NotChecked=0, Total=812 [2024-11-28 05:15:52,110 INFO L87 Difference]: Start difference. First operand 13487 states and 19750 transitions. Second operand has 9 states, 9 states have (on average 35.333333333333336) internal successors, (318), 9 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:52,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:15:52,491 INFO L93 Difference]: Finished difference Result 27735 states and 40729 transitions. [2024-11-28 05:15:52,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 05:15:52,492 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 35.333333333333336) internal successors, (318), 9 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 399 [2024-11-28 05:15:52,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:15:52,504 INFO L225 Difference]: With dead ends: 27735 [2024-11-28 05:15:52,504 INFO L226 Difference]: Without dead ends: 16853 [2024-11-28 05:15:52,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 815 GetRequests, 784 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=154, Invalid=902, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 05:15:52,513 INFO L435 NwaCegarLoop]: 761 mSDtfsCounter, 1009 mSDsluCounter, 3888 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 4649 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:15:52,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1009 Valid, 4649 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:15:52,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16853 states. [2024-11-28 05:15:52,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16853 to 14823. [2024-11-28 05:15:52,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14823 states, 14822 states have (on average 1.4653892861961948) internal successors, (21720), 14822 states have internal predecessors, (21720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:52,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14823 states to 14823 states and 21720 transitions. [2024-11-28 05:15:52,678 INFO L78 Accepts]: Start accepts. Automaton has 14823 states and 21720 transitions. Word has length 399 [2024-11-28 05:15:52,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:15:52,679 INFO L471 AbstractCegarLoop]: Abstraction has 14823 states and 21720 transitions. [2024-11-28 05:15:52,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 35.333333333333336) internal successors, (318), 9 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:52,679 INFO L276 IsEmpty]: Start isEmpty. Operand 14823 states and 21720 transitions. [2024-11-28 05:15:52,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2024-11-28 05:15:52,684 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:15:52,685 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:52,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 05:15:52,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:15:52,886 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:15:52,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:15:52,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1688293246, now seen corresponding path program 1 times [2024-11-28 05:15:52,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:15:52,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888724966] [2024-11-28 05:15:52,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:15:52,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:15:57,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:15:58,854 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 112 proven. 84 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 05:15:58,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:15:58,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888724966] [2024-11-28 05:15:58,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888724966] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:15:58,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599517397] [2024-11-28 05:15:58,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:15:58,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:15:58,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:15:58,857 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:15:58,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 05:16:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:00,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 2497 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-28 05:16:00,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:02,501 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 68 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:02,501 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:16:03,206 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 05:16:03,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599517397] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 05:16:03,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:16:03,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10, 10] total 23 [2024-11-28 05:16:03,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761434379] [2024-11-28 05:16:03,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:03,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:16:03,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:16:03,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:16:03,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2024-11-28 05:16:03,208 INFO L87 Difference]: Start difference. First operand 14823 states and 21720 transitions. Second operand has 7 states, 7 states have (on average 52.0) internal successors, (364), 7 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:03,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:03,415 INFO L93 Difference]: Finished difference Result 27431 states and 40275 transitions. [2024-11-28 05:16:03,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:16:03,416 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 52.0) internal successors, (364), 7 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 399 [2024-11-28 05:16:03,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:16:03,426 INFO L225 Difference]: With dead ends: 27431 [2024-11-28 05:16:03,426 INFO L226 Difference]: Without dead ends: 15329 [2024-11-28 05:16:03,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 808 GetRequests, 785 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=511, Unknown=0, NotChecked=0, Total=600 [2024-11-28 05:16:03,433 INFO L435 NwaCegarLoop]: 914 mSDtfsCounter, 527 mSDsluCounter, 3153 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 4067 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:16:03,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 4067 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:16:03,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15329 states. [2024-11-28 05:16:03,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15329 to 14893. [2024-11-28 05:16:03,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14893 states, 14892 states have (on average 1.464679022293849) internal successors, (21812), 14892 states have internal predecessors, (21812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:03,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14893 states to 14893 states and 21812 transitions. [2024-11-28 05:16:03,592 INFO L78 Accepts]: Start accepts. Automaton has 14893 states and 21812 transitions. Word has length 399 [2024-11-28 05:16:03,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:16:03,593 INFO L471 AbstractCegarLoop]: Abstraction has 14893 states and 21812 transitions. [2024-11-28 05:16:03,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.0) internal successors, (364), 7 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:03,593 INFO L276 IsEmpty]: Start isEmpty. Operand 14893 states and 21812 transitions. [2024-11-28 05:16:03,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2024-11-28 05:16:03,596 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:16:03,597 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:16:03,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 05:16:03,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:03,797 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:16:03,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:03,798 INFO L85 PathProgramCache]: Analyzing trace with hash -52606406, now seen corresponding path program 1 times [2024-11-28 05:16:03,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:16:03,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151016382] [2024-11-28 05:16:03,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:03,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:06,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:09,105 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 97 proven. 104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:09,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:16:09,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151016382] [2024-11-28 05:16:09,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151016382] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:16:09,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005400869] [2024-11-28 05:16:09,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:09,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:09,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:09,108 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:09,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 05:16:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:11,209 INFO L256 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 187 conjuncts are in the unsatisfiable core [2024-11-28 05:16:11,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:14,460 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 97 proven. 104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:14,460 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:16:15,973 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 175 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-28 05:16:15,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005400869] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 05:16:15,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:16:15,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [11, 19] total 40 [2024-11-28 05:16:15,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387956136] [2024-11-28 05:16:15,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:15,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 05:16:15,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:16:15,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 05:16:15,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1379, Unknown=0, NotChecked=0, Total=1560 [2024-11-28 05:16:15,975 INFO L87 Difference]: Start difference. First operand 14893 states and 21812 transitions. Second operand has 14 states, 14 states have (on average 26.785714285714285) internal successors, (375), 14 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:16,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:16,834 INFO L93 Difference]: Finished difference Result 34721 states and 51017 transitions. [2024-11-28 05:16:16,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 05:16:16,835 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 26.785714285714285) internal successors, (375), 14 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 400 [2024-11-28 05:16:16,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:16:16,849 INFO L225 Difference]: With dead ends: 34721 [2024-11-28 05:16:16,849 INFO L226 Difference]: Without dead ends: 22213 [2024-11-28 05:16:16,857 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 820 GetRequests, 774 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=277, Invalid=1885, Unknown=0, NotChecked=0, Total=2162 [2024-11-28 05:16:16,858 INFO L435 NwaCegarLoop]: 669 mSDtfsCounter, 1635 mSDsluCounter, 6280 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1635 SdHoareTripleChecker+Valid, 6949 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:16:16,858 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1635 Valid, 6949 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:16:16,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22213 states. [2024-11-28 05:16:17,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22213 to 15505. [2024-11-28 05:16:17,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15505 states, 15504 states have (on average 1.4654282765737874) internal successors, (22720), 15504 states have internal predecessors, (22720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:17,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15505 states to 15505 states and 22720 transitions. [2024-11-28 05:16:17,097 INFO L78 Accepts]: Start accepts. Automaton has 15505 states and 22720 transitions. Word has length 400 [2024-11-28 05:16:17,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:16:17,097 INFO L471 AbstractCegarLoop]: Abstraction has 15505 states and 22720 transitions. [2024-11-28 05:16:17,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 26.785714285714285) internal successors, (375), 14 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:17,098 INFO L276 IsEmpty]: Start isEmpty. Operand 15505 states and 22720 transitions. [2024-11-28 05:16:17,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2024-11-28 05:16:17,101 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:16:17,101 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:16:17,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 05:16:17,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-28 05:16:17,302 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:16:17,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:17,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1340248603, now seen corresponding path program 1 times [2024-11-28 05:16:17,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:16:17,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884532504] [2024-11-28 05:16:17,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:17,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:22,819 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 130 proven. 66 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 05:16:22,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:16:22,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884532504] [2024-11-28 05:16:22,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884532504] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:16:22,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762041362] [2024-11-28 05:16:22,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:22,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:22,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:22,824 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:22,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 05:16:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:24,899 INFO L256 TraceCheckSpWp]: Trace formula consists of 2502 conjuncts, 124 conjuncts are in the unsatisfiable core [2024-11-28 05:16:24,909 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:27,586 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 8 proven. 192 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:27,586 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:16:30,092 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 160 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:30,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762041362] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:16:30,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:16:30,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 23, 18] total 47 [2024-11-28 05:16:30,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815823633] [2024-11-28 05:16:30,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:16:30,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-11-28 05:16:30,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:16:30,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-11-28 05:16:30,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=1890, Unknown=0, NotChecked=0, Total=2162 [2024-11-28 05:16:30,096 INFO L87 Difference]: Start difference. First operand 15505 states and 22720 transitions. Second operand has 47 states, 47 states have (on average 25.170212765957448) internal successors, (1183), 47 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:41,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:41,193 INFO L93 Difference]: Finished difference Result 189286 states and 278071 transitions. [2024-11-28 05:16:41,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2024-11-28 05:16:41,194 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 25.170212765957448) internal successors, (1183), 47 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 400 [2024-11-28 05:16:41,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:16:41,305 INFO L225 Difference]: With dead ends: 189286 [2024-11-28 05:16:41,305 INFO L226 Difference]: Without dead ends: 174718 [2024-11-28 05:16:41,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 960 GetRequests, 763 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13379 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=4098, Invalid=35304, Unknown=0, NotChecked=0, Total=39402 [2024-11-28 05:16:41,341 INFO L435 NwaCegarLoop]: 1261 mSDtfsCounter, 20026 mSDsluCounter, 31173 mSDsCounter, 0 mSdLazyCounter, 5783 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20026 SdHoareTripleChecker+Valid, 32434 SdHoareTripleChecker+Invalid, 5816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 5783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:16:41,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20026 Valid, 32434 Invalid, 5816 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [33 Valid, 5783 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-28 05:16:41,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174718 states. [2024-11-28 05:16:42,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174718 to 55303. [2024-11-28 05:16:42,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55303 states, 55302 states have (on average 1.4668185599074175) internal successors, (81118), 55302 states have internal predecessors, (81118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:42,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55303 states to 55303 states and 81118 transitions. [2024-11-28 05:16:42,143 INFO L78 Accepts]: Start accepts. Automaton has 55303 states and 81118 transitions. Word has length 400 [2024-11-28 05:16:42,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:16:42,143 INFO L471 AbstractCegarLoop]: Abstraction has 55303 states and 81118 transitions. [2024-11-28 05:16:42,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 25.170212765957448) internal successors, (1183), 47 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:42,144 INFO L276 IsEmpty]: Start isEmpty. Operand 55303 states and 81118 transitions. [2024-11-28 05:16:42,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-28 05:16:42,150 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:16:42,150 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:16:42,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 05:16:42,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-28 05:16:42,351 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:16:42,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:42,351 INFO L85 PathProgramCache]: Analyzing trace with hash -120553746, now seen corresponding path program 1 times [2024-11-28 05:16:42,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:16:42,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521515553] [2024-11-28 05:16:42,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:42,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:45,903 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 100 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:45,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:16:45,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521515553] [2024-11-28 05:16:45,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521515553] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:16:45,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516034431] [2024-11-28 05:16:45,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:45,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:45,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:45,906 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:45,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 05:16:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:47,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 2505 conjuncts, 108 conjuncts are in the unsatisfiable core [2024-11-28 05:16:47,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:50,377 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 61 proven. 138 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:50,377 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:16:50,948 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-28 05:16:50,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516034431] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 05:16:50,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:16:50,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8, 20] total 35 [2024-11-28 05:16:50,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942879796] [2024-11-28 05:16:50,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:50,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:16:50,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:16:50,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:16:50,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=1048, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 05:16:50,951 INFO L87 Difference]: Start difference. First operand 55303 states and 81118 transitions. Second operand has 11 states, 11 states have (on average 29.09090909090909) internal successors, (320), 11 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:51,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:51,564 INFO L93 Difference]: Finished difference Result 109941 states and 161435 transitions. [2024-11-28 05:16:51,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 05:16:51,565 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 29.09090909090909) internal successors, (320), 11 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 401 [2024-11-28 05:16:51,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:16:51,607 INFO L225 Difference]: With dead ends: 109941 [2024-11-28 05:16:51,607 INFO L226 Difference]: Without dead ends: 61423 [2024-11-28 05:16:51,638 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 816 GetRequests, 776 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=221, Invalid=1501, Unknown=0, NotChecked=0, Total=1722 [2024-11-28 05:16:51,638 INFO L435 NwaCegarLoop]: 539 mSDtfsCounter, 830 mSDsluCounter, 4468 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 5007 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:16:51,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 5007 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 05:16:51,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61423 states. [2024-11-28 05:16:52,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61423 to 58485. [2024-11-28 05:16:52,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58485 states, 58484 states have (on average 1.4662471787155462) internal successors, (85752), 58484 states have internal predecessors, (85752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:52,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58485 states to 58485 states and 85752 transitions. [2024-11-28 05:16:52,118 INFO L78 Accepts]: Start accepts. Automaton has 58485 states and 85752 transitions. Word has length 401 [2024-11-28 05:16:52,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:16:52,118 INFO L471 AbstractCegarLoop]: Abstraction has 58485 states and 85752 transitions. [2024-11-28 05:16:52,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 29.09090909090909) internal successors, (320), 11 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:52,118 INFO L276 IsEmpty]: Start isEmpty. Operand 58485 states and 85752 transitions. [2024-11-28 05:16:52,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-28 05:16:52,128 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:16:52,128 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:16:52,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 05:16:52,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-28 05:16:52,328 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:16:52,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:52,329 INFO L85 PathProgramCache]: Analyzing trace with hash -837241974, now seen corresponding path program 1 times [2024-11-28 05:16:52,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:16:52,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004415488] [2024-11-28 05:16:52,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:52,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:56,030 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 100 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:56,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:16:56,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004415488] [2024-11-28 05:16:56,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004415488] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:16:56,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123247485] [2024-11-28 05:16:56,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:56,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:56,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:56,032 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:56,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 05:16:57,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:57,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 2503 conjuncts, 200 conjuncts are in the unsatisfiable core [2024-11-28 05:16:57,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:17:03,946 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 61 proven. 139 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:17:03,946 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:17:04,570 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 05:17:04,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123247485] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 05:17:04,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:17:04,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8, 29] total 44 [2024-11-28 05:17:04,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185643834] [2024-11-28 05:17:04,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:04,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:17:04,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:04,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:17:04,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=1719, Unknown=0, NotChecked=0, Total=1892 [2024-11-28 05:17:04,572 INFO L87 Difference]: Start difference. First operand 58485 states and 85752 transitions. Second operand has 11 states, 11 states have (on average 26.181818181818183) internal successors, (288), 11 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:05,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:05,339 INFO L93 Difference]: Finished difference Result 116429 states and 170925 transitions. [2024-11-28 05:17:05,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 05:17:05,340 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 26.181818181818183) internal successors, (288), 11 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 401 [2024-11-28 05:17:05,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:05,398 INFO L225 Difference]: With dead ends: 116429 [2024-11-28 05:17:05,398 INFO L226 Difference]: Without dead ends: 65265 [2024-11-28 05:17:05,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 814 GetRequests, 768 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=217, Invalid=2039, Unknown=0, NotChecked=0, Total=2256 [2024-11-28 05:17:05,429 INFO L435 NwaCegarLoop]: 657 mSDtfsCounter, 1048 mSDsluCounter, 4700 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 5357 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:05,429 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 5357 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 05:17:05,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65265 states. [2024-11-28 05:17:06,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65265 to 58261. [2024-11-28 05:17:06,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58261 states, 58260 states have (on average 1.4666666666666666) internal successors, (85448), 58260 states have internal predecessors, (85448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:06,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58261 states to 58261 states and 85448 transitions. [2024-11-28 05:17:06,189 INFO L78 Accepts]: Start accepts. Automaton has 58261 states and 85448 transitions. Word has length 401 [2024-11-28 05:17:06,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:06,190 INFO L471 AbstractCegarLoop]: Abstraction has 58261 states and 85448 transitions. [2024-11-28 05:17:06,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 26.181818181818183) internal successors, (288), 11 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:06,190 INFO L276 IsEmpty]: Start isEmpty. Operand 58261 states and 85448 transitions. [2024-11-28 05:17:06,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-28 05:17:06,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:06,208 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:17:06,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-28 05:17:06,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6a6440f-c172-4197-b900-49eb973ee7db/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-28 05:17:06,408 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:17:06,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:06,409 INFO L85 PathProgramCache]: Analyzing trace with hash -882985874, now seen corresponding path program 1 times [2024-11-28 05:17:06,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:06,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433251295] [2024-11-28 05:17:06,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:06,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:10,072 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-28 05:17:10,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:10,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433251295] [2024-11-28 05:17:10,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433251295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:10,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:10,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:17:10,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963597854] [2024-11-28 05:17:10,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:10,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:17:10,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:10,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:17:10,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:17:10,074 INFO L87 Difference]: Start difference. First operand 58261 states and 85448 transitions. Second operand has 7 states, 7 states have (on average 55.285714285714285) internal successors, (387), 7 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:10,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:10,517 INFO L93 Difference]: Finished difference Result 115941 states and 170095 transitions. [2024-11-28 05:17:10,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:17:10,517 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 55.285714285714285) internal successors, (387), 7 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 401 [2024-11-28 05:17:10,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:10,560 INFO L225 Difference]: With dead ends: 115941 [2024-11-28 05:17:10,560 INFO L226 Difference]: Without dead ends: 58451 [2024-11-28 05:17:10,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:17:10,588 INFO L435 NwaCegarLoop]: 490 mSDtfsCounter, 371 mSDsluCounter, 1946 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 2436 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:10,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 2436 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:17:10,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58451 states. [2024-11-28 05:17:11,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58451 to 58451. [2024-11-28 05:17:11,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58451 states, 58450 states have (on average 1.4657998289136014) internal successors, (85676), 58450 states have internal predecessors, (85676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:11,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58451 states to 58451 states and 85676 transitions. [2024-11-28 05:17:11,710 INFO L78 Accepts]: Start accepts. Automaton has 58451 states and 85676 transitions. Word has length 401 [2024-11-28 05:17:11,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:11,710 INFO L471 AbstractCegarLoop]: Abstraction has 58451 states and 85676 transitions. [2024-11-28 05:17:11,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 55.285714285714285) internal successors, (387), 7 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:11,710 INFO L276 IsEmpty]: Start isEmpty. Operand 58451 states and 85676 transitions. [2024-11-28 05:17:11,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2024-11-28 05:17:11,715 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:11,716 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:17:11,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-28 05:17:11,716 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:17:11,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:11,717 INFO L85 PathProgramCache]: Analyzing trace with hash 803881609, now seen corresponding path program 1 times [2024-11-28 05:17:11,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:11,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573340053] [2024-11-28 05:17:11,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:11,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:14,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:14,527 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-28 05:17:14,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:14,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573340053] [2024-11-28 05:17:14,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573340053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:14,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:14,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:17:14,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815783293] [2024-11-28 05:17:14,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:14,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:17:14,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:14,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:17:14,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:17:14,529 INFO L87 Difference]: Start difference. First operand 58451 states and 85676 transitions. Second operand has 7 states, 7 states have (on average 55.285714285714285) internal successors, (387), 7 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:14,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:14,849 INFO L93 Difference]: Finished difference Result 117625 states and 172457 transitions. [2024-11-28 05:17:14,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:17:14,849 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 55.285714285714285) internal successors, (387), 7 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 402 [2024-11-28 05:17:14,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:14,881 INFO L225 Difference]: With dead ends: 117625 [2024-11-28 05:17:14,881 INFO L226 Difference]: Without dead ends: 59873 [2024-11-28 05:17:14,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:17:14,895 INFO L435 NwaCegarLoop]: 558 mSDtfsCounter, 27 mSDsluCounter, 2773 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 3331 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:14,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 3331 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:17:14,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59873 states. [2024-11-28 05:17:15,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59873 to 59873. [2024-11-28 05:17:15,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59873 states, 59872 states have (on average 1.4639564404062) internal successors, (87650), 59872 states have internal predecessors, (87650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:15,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59873 states to 59873 states and 87650 transitions. [2024-11-28 05:17:15,604 INFO L78 Accepts]: Start accepts. Automaton has 59873 states and 87650 transitions. Word has length 402 [2024-11-28 05:17:15,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:15,605 INFO L471 AbstractCegarLoop]: Abstraction has 59873 states and 87650 transitions. [2024-11-28 05:17:15,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 55.285714285714285) internal successors, (387), 7 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:15,605 INFO L276 IsEmpty]: Start isEmpty. Operand 59873 states and 87650 transitions. [2024-11-28 05:17:15,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2024-11-28 05:17:15,616 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:15,616 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:17:15,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-28 05:17:15,616 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:17:15,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:15,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1703879842, now seen corresponding path program 1 times [2024-11-28 05:17:15,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:15,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096181833] [2024-11-28 05:17:15,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:15,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:16,824 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-28 05:17:16,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:16,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096181833] [2024-11-28 05:17:16,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096181833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:16,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:16,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:17:16,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489087186] [2024-11-28 05:17:16,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:16,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:17:16,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:16,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:17:16,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:17:16,826 INFO L87 Difference]: Start difference. First operand 59873 states and 87650 transitions. Second operand has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:17,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:17,065 INFO L93 Difference]: Finished difference Result 118885 states and 174075 transitions. [2024-11-28 05:17:17,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:17:17,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 402 [2024-11-28 05:17:17,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:17,109 INFO L225 Difference]: With dead ends: 118885 [2024-11-28 05:17:17,109 INFO L226 Difference]: Without dead ends: 59853 [2024-11-28 05:17:17,139 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 05:17:17,139 INFO L435 NwaCegarLoop]: 552 mSDtfsCounter, 1243 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 1649 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:17,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1243 Valid, 1649 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:17:17,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59853 states. [2024-11-28 05:17:17,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59853 to 59853. [2024-11-28 05:17:17,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59853 states, 59852 states have (on average 1.4639109804183652) internal successors, (87618), 59852 states have internal predecessors, (87618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:17,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59853 states to 59853 states and 87618 transitions. [2024-11-28 05:17:17,830 INFO L78 Accepts]: Start accepts. Automaton has 59853 states and 87618 transitions. Word has length 402 [2024-11-28 05:17:17,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:17,830 INFO L471 AbstractCegarLoop]: Abstraction has 59853 states and 87618 transitions. [2024-11-28 05:17:17,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:17,831 INFO L276 IsEmpty]: Start isEmpty. Operand 59853 states and 87618 transitions. [2024-11-28 05:17:17,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2024-11-28 05:17:17,838 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:17,838 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:17:17,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-28 05:17:17,838 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:17:17,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:17,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1547706464, now seen corresponding path program 1 times [2024-11-28 05:17:17,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:17,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059857922] [2024-11-28 05:17:17,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:17,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:20,809 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-28 05:17:20,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:20,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059857922] [2024-11-28 05:17:20,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059857922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:20,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:20,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:17:20,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161062643] [2024-11-28 05:17:20,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:20,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:17:20,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:20,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:17:20,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:17:20,811 INFO L87 Difference]: Start difference. First operand 59853 states and 87618 transitions. Second operand has 7 states, 7 states have (on average 53.0) internal successors, (371), 7 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:21,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:21,173 INFO L93 Difference]: Finished difference Result 121625 states and 178119 transitions. [2024-11-28 05:17:21,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:17:21,174 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 53.0) internal successors, (371), 7 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 403 [2024-11-28 05:17:21,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:21,215 INFO L225 Difference]: With dead ends: 121625 [2024-11-28 05:17:21,215 INFO L226 Difference]: Without dead ends: 62399 [2024-11-28 05:17:21,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:17:21,236 INFO L435 NwaCegarLoop]: 558 mSDtfsCounter, 27 mSDsluCounter, 2773 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 3331 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:21,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 3331 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:17:21,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62399 states. [2024-11-28 05:17:21,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62399 to 62399. [2024-11-28 05:17:21,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62399 states, 62398 states have (on average 1.4609442610340075) internal successors, (91160), 62398 states have internal predecessors, (91160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:21,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62399 states to 62399 states and 91160 transitions. [2024-11-28 05:17:21,927 INFO L78 Accepts]: Start accepts. Automaton has 62399 states and 91160 transitions. Word has length 403 [2024-11-28 05:17:21,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:21,927 INFO L471 AbstractCegarLoop]: Abstraction has 62399 states and 91160 transitions. [2024-11-28 05:17:21,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.0) internal successors, (371), 7 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:21,928 INFO L276 IsEmpty]: Start isEmpty. Operand 62399 states and 91160 transitions. [2024-11-28 05:17:21,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2024-11-28 05:17:21,934 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:21,934 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:17:21,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-28 05:17:21,934 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:17:21,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:21,935 INFO L85 PathProgramCache]: Analyzing trace with hash -634786393, now seen corresponding path program 1 times [2024-11-28 05:17:21,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:21,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488723917] [2024-11-28 05:17:21,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:21,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:22,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:22,887 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 05:17:22,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:22,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488723917] [2024-11-28 05:17:22,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488723917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:22,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:22,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:17:22,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916518695] [2024-11-28 05:17:22,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:22,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:17:22,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:22,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:17:22,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:17:22,889 INFO L87 Difference]: Start difference. First operand 62399 states and 91160 transitions. Second operand has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:23,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:23,078 INFO L93 Difference]: Finished difference Result 124201 states and 181491 transitions. [2024-11-28 05:17:23,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:17:23,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 403 [2024-11-28 05:17:23,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:23,296 INFO L225 Difference]: With dead ends: 124201 [2024-11-28 05:17:23,297 INFO L226 Difference]: Without dead ends: 62631 [2024-11-28 05:17:23,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:17:23,312 INFO L435 NwaCegarLoop]: 563 mSDtfsCounter, 0 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:23,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1679 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:17:23,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62631 states. [2024-11-28 05:17:23,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62631 to 62631. [2024-11-28 05:17:23,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62631 states, 62630 states have (on average 1.4592367874820373) internal successors, (91392), 62630 states have internal predecessors, (91392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:24,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62631 states to 62631 states and 91392 transitions. [2024-11-28 05:17:24,090 INFO L78 Accepts]: Start accepts. Automaton has 62631 states and 91392 transitions. Word has length 403 [2024-11-28 05:17:24,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:24,090 INFO L471 AbstractCegarLoop]: Abstraction has 62631 states and 91392 transitions. [2024-11-28 05:17:24,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:24,090 INFO L276 IsEmpty]: Start isEmpty. Operand 62631 states and 91392 transitions. [2024-11-28 05:17:24,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2024-11-28 05:17:24,103 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:24,103 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:17:24,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-28 05:17:24,103 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:17:24,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:24,104 INFO L85 PathProgramCache]: Analyzing trace with hash 581369762, now seen corresponding path program 1 times [2024-11-28 05:17:24,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:24,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230439917] [2024-11-28 05:17:24,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:24,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:24,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:25,132 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-28 05:17:25,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:25,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230439917] [2024-11-28 05:17:25,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230439917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:25,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:25,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:17:25,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851567846] [2024-11-28 05:17:25,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:25,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:17:25,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:25,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:17:25,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:17:25,133 INFO L87 Difference]: Start difference. First operand 62631 states and 91392 transitions. Second operand has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:25,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:25,341 INFO L93 Difference]: Finished difference Result 124747 states and 182069 transitions. [2024-11-28 05:17:25,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:17:25,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 404 [2024-11-28 05:17:25,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:25,397 INFO L225 Difference]: With dead ends: 124747 [2024-11-28 05:17:25,397 INFO L226 Difference]: Without dead ends: 62863 [2024-11-28 05:17:25,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:17:25,429 INFO L435 NwaCegarLoop]: 563 mSDtfsCounter, 0 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:25,429 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1679 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:17:25,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62863 states. [2024-11-28 05:17:26,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62863 to 62863. [2024-11-28 05:17:26,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62863 states, 62862 states have (on average 1.457541917215488) internal successors, (91624), 62862 states have internal predecessors, (91624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:26,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62863 states to 62863 states and 91624 transitions. [2024-11-28 05:17:26,125 INFO L78 Accepts]: Start accepts. Automaton has 62863 states and 91624 transitions. Word has length 404 [2024-11-28 05:17:26,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:26,125 INFO L471 AbstractCegarLoop]: Abstraction has 62863 states and 91624 transitions. [2024-11-28 05:17:26,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:26,125 INFO L276 IsEmpty]: Start isEmpty. Operand 62863 states and 91624 transitions. [2024-11-28 05:17:26,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2024-11-28 05:17:26,131 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:26,132 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:17:26,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-28 05:17:26,132 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:17:26,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:26,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1647208553, now seen corresponding path program 1 times [2024-11-28 05:17:26,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:26,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535950168] [2024-11-28 05:17:26,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:26,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:28,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:29,399 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-28 05:17:29,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:29,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535950168] [2024-11-28 05:17:29,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535950168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:29,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:29,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:17:29,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848729867] [2024-11-28 05:17:29,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:29,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:17:29,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:29,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:17:29,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:17:29,400 INFO L87 Difference]: Start difference. First operand 62863 states and 91624 transitions. Second operand has 7 states, 7 states have (on average 51.0) internal successors, (357), 7 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:29,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:29,647 INFO L93 Difference]: Finished difference Result 129877 states and 189451 transitions. [2024-11-28 05:17:29,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:17:29,647 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 51.0) internal successors, (357), 7 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 404 [2024-11-28 05:17:29,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:29,693 INFO L225 Difference]: With dead ends: 129877 [2024-11-28 05:17:29,693 INFO L226 Difference]: Without dead ends: 67569 [2024-11-28 05:17:29,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:17:29,724 INFO L435 NwaCegarLoop]: 558 mSDtfsCounter, 27 mSDsluCounter, 2773 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 3331 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:29,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 3331 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:17:29,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67569 states. [2024-11-28 05:17:30,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67569 to 67569. [2024-11-28 05:17:30,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67569 states, 67568 states have (on average 1.4534098981766517) internal successors, (98204), 67568 states have internal predecessors, (98204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:30,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67569 states to 67569 states and 98204 transitions. [2024-11-28 05:17:30,495 INFO L78 Accepts]: Start accepts. Automaton has 67569 states and 98204 transitions. Word has length 404 [2024-11-28 05:17:30,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:30,495 INFO L471 AbstractCegarLoop]: Abstraction has 67569 states and 98204 transitions. [2024-11-28 05:17:30,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.0) internal successors, (357), 7 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:30,495 INFO L276 IsEmpty]: Start isEmpty. Operand 67569 states and 98204 transitions. [2024-11-28 05:17:30,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2024-11-28 05:17:30,501 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:30,502 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:17:30,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-28 05:17:30,502 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:17:30,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:30,502 INFO L85 PathProgramCache]: Analyzing trace with hash -204136720, now seen corresponding path program 1 times [2024-11-28 05:17:30,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:30,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058835442] [2024-11-28 05:17:30,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:30,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:31,558 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-28 05:17:31,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:31,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058835442] [2024-11-28 05:17:31,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058835442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:31,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:31,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:17:31,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891947762] [2024-11-28 05:17:31,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:31,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:17:31,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:31,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:17:31,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:17:31,560 INFO L87 Difference]: Start difference. First operand 67569 states and 98204 transitions. Second operand has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:31,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:31,780 INFO L93 Difference]: Finished difference Result 134869 states and 196069 transitions. [2024-11-28 05:17:31,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:17:31,781 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 404 [2024-11-28 05:17:31,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:31,832 INFO L225 Difference]: With dead ends: 134869 [2024-11-28 05:17:31,832 INFO L226 Difference]: Without dead ends: 68073 [2024-11-28 05:17:31,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:17:31,866 INFO L435 NwaCegarLoop]: 563 mSDtfsCounter, 0 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:31,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1679 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:17:31,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68073 states. [2024-11-28 05:17:32,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68073 to 68073. [2024-11-28 05:17:32,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68073 states, 68072 states have (on average 1.4500528851803973) internal successors, (98708), 68072 states have internal predecessors, (98708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:32,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68073 states to 68073 states and 98708 transitions. [2024-11-28 05:17:32,609 INFO L78 Accepts]: Start accepts. Automaton has 68073 states and 98708 transitions. Word has length 404 [2024-11-28 05:17:32,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:32,610 INFO L471 AbstractCegarLoop]: Abstraction has 68073 states and 98708 transitions. [2024-11-28 05:17:32,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:32,610 INFO L276 IsEmpty]: Start isEmpty. Operand 68073 states and 98708 transitions. [2024-11-28 05:17:32,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-11-28 05:17:32,619 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:32,619 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:17:32,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-28 05:17:32,619 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:17:32,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:32,620 INFO L85 PathProgramCache]: Analyzing trace with hash -746356633, now seen corresponding path program 1 times [2024-11-28 05:17:32,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:32,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109860211] [2024-11-28 05:17:32,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:32,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:33,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:33,774 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-28 05:17:33,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:33,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109860211] [2024-11-28 05:17:33,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109860211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:33,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:33,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:17:33,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234427358] [2024-11-28 05:17:33,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:33,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:17:33,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:33,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:17:33,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:17:33,776 INFO L87 Difference]: Start difference. First operand 68073 states and 98708 transitions. Second operand has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:34,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:34,292 INFO L93 Difference]: Finished difference Result 135975 states and 197211 transitions. [2024-11-28 05:17:34,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:17:34,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 405 [2024-11-28 05:17:34,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:34,330 INFO L225 Difference]: With dead ends: 135975 [2024-11-28 05:17:34,330 INFO L226 Difference]: Without dead ends: 68577 [2024-11-28 05:17:34,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:17:34,348 INFO L435 NwaCegarLoop]: 563 mSDtfsCounter, 0 mSDsluCounter, 1673 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2236 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:34,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2236 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:17:34,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68577 states. [2024-11-28 05:17:34,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68577 to 68577. [2024-11-28 05:17:34,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68577 states, 68576 states have (on average 1.4467452169855344) internal successors, (99212), 68576 states have internal predecessors, (99212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:34,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68577 states to 68577 states and 99212 transitions. [2024-11-28 05:17:34,880 INFO L78 Accepts]: Start accepts. Automaton has 68577 states and 99212 transitions. Word has length 405 [2024-11-28 05:17:34,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:34,881 INFO L471 AbstractCegarLoop]: Abstraction has 68577 states and 99212 transitions. [2024-11-28 05:17:34,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:34,881 INFO L276 IsEmpty]: Start isEmpty. Operand 68577 states and 99212 transitions. [2024-11-28 05:17:34,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-11-28 05:17:34,887 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:34,887 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:17:34,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-28 05:17:34,887 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:17:34,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:34,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1639798514, now seen corresponding path program 1 times [2024-11-28 05:17:34,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:34,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772645451] [2024-11-28 05:17:34,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:34,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:35,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:35,806 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-28 05:17:35,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:35,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772645451] [2024-11-28 05:17:35,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772645451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:35,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:35,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:17:35,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681002449] [2024-11-28 05:17:35,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:35,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:17:35,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:35,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:17:35,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:17:35,808 INFO L87 Difference]: Start difference. First operand 68577 states and 99212 transitions. Second operand has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:36,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:36,148 INFO L93 Difference]: Finished difference Result 136561 states and 197611 transitions. [2024-11-28 05:17:36,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:17:36,148 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 405 [2024-11-28 05:17:36,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:36,198 INFO L225 Difference]: With dead ends: 136561 [2024-11-28 05:17:36,198 INFO L226 Difference]: Without dead ends: 68809 [2024-11-28 05:17:36,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:17:36,231 INFO L435 NwaCegarLoop]: 563 mSDtfsCounter, 0 mSDsluCounter, 1673 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2236 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:36,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2236 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:17:36,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68809 states. [2024-11-28 05:17:36,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68809 to 68809. [2024-11-28 05:17:36,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68809 states, 68808 states have (on average 1.4452389257063132) internal successors, (99444), 68808 states have internal predecessors, (99444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)