./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label05.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22537e02f4cb8698af716d464e1d3c3736fc7fa276fb73e44b45e0b685f49af8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:06:01,857 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:06:01,912 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 12:06:01,917 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:06:01,917 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:06:01,939 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:06:01,940 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:06:01,940 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:06:01,940 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:06:01,941 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:06:01,941 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:06:01,941 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:06:01,941 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:06:01,941 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:06:01,941 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:06:01,941 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:06:01,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:06:01,942 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 12:06:01,942 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:06:01,942 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 12:06:01,942 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:06:01,942 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:06:01,942 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:06:01,942 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:06:01,942 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 12:06:01,942 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:06:01,942 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:06:01,943 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:06:01,943 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:06:01,943 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:06:01,943 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:06:01,943 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:06:01,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:06:01,943 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:06:01,943 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:06:01,943 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:06:01,943 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:06:01,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:06:01,944 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:06:01,944 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:06:01,944 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:06:01,944 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:06:01,944 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:06:01,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:06:01,944 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:06:01,944 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:06:01,944 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:06:01,944 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:06:01,945 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_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22537e02f4cb8698af716d464e1d3c3736fc7fa276fb73e44b45e0b685f49af8 [2024-12-02 12:06:02,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:06:02,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:06:02,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:06:02,180 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:06:02,181 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:06:02,182 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label05.c [2024-12-02 12:06:04,800 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/data/097bcc019/f770267e2a2b4baa9882ca61a292b798/FLAGf8786f5f4 [2024-12-02 12:06:05,285 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:06:05,285 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label05.c [2024-12-02 12:06:05,325 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/data/097bcc019/f770267e2a2b4baa9882ca61a292b798/FLAGf8786f5f4 [2024-12-02 12:06:05,340 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/data/097bcc019/f770267e2a2b4baa9882ca61a292b798 [2024-12-02 12:06:05,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:06:05,344 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:06:05,346 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:06:05,346 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:06:05,351 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:06:05,352 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:06:05" (1/1) ... [2024-12-02 12:06:05,352 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ab2198e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:05, skipping insertion in model container [2024-12-02 12:06:05,353 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:06:05" (1/1) ... [2024-12-02 12:06:05,449 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:06:05,744 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_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label05.c[11640,11653] [2024-12-02 12:06:05,802 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_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label05.c[18576,18589] [2024-12-02 12:06:06,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:06:06,369 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:06:06,399 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_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label05.c[11640,11653] [2024-12-02 12:06:06,409 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_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label05.c[18576,18589] [2024-12-02 12:06:06,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:06:06,841 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:06:06,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:06 WrapperNode [2024-12-02 12:06:06,842 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:06:06,843 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:06:06,843 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:06:06,843 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:06:06,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:06" (1/1) ... [2024-12-02 12:06:06,905 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:06" (1/1) ... [2024-12-02 12:06:07,172 INFO L138 Inliner]: procedures = 36, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5097 [2024-12-02 12:06:07,172 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:06:07,173 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:06:07,173 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:06:07,173 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:06:07,182 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:06" (1/1) ... [2024-12-02 12:06:07,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:06" (1/1) ... [2024-12-02 12:06:07,232 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:06" (1/1) ... [2024-12-02 12:06:07,370 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]. [2024-12-02 12:06:07,370 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:06" (1/1) ... [2024-12-02 12:06:07,371 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:06" (1/1) ... [2024-12-02 12:06:07,483 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:06" (1/1) ... [2024-12-02 12:06:07,497 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:06" (1/1) ... [2024-12-02 12:06:07,520 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:06" (1/1) ... [2024-12-02 12:06:07,549 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:06" (1/1) ... [2024-12-02 12:06:07,562 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:06" (1/1) ... [2024-12-02 12:06:07,629 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:06:07,629 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:06:07,630 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:06:07,630 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:06:07,631 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:06" (1/1) ... [2024-12-02 12:06:07,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:06:07,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:06:07,661 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:06:07,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:06:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:06:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 12:06:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:06:07,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:06:07,788 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:06:07,790 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:06:11,833 INFO L? ?]: Removed 744 outVars from TransFormulas that were not future-live. [2024-12-02 12:06:11,834 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:06:11,879 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:06:11,879 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-02 12:06:11,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:06:11 BoogieIcfgContainer [2024-12-02 12:06:11,880 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:06:11,882 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:06:11,882 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:06:11,886 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:06:11,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:06:05" (1/3) ... [2024-12-02 12:06:11,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f2a04fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:06:11, skipping insertion in model container [2024-12-02 12:06:11,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:06" (2/3) ... [2024-12-02 12:06:11,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f2a04fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:06:11, skipping insertion in model container [2024-12-02 12:06:11,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:06:11" (3/3) ... [2024-12-02 12:06:11,889 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label05.c [2024-12-02 12:06:11,903 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:06:11,906 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label05.c that has 1 procedures, 900 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-02 12:06:11,985 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:06:11,998 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;@35423313, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:06:11,998 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 12:06:12,006 INFO L276 IsEmpty]: Start isEmpty. Operand has 900 states, 897 states have (on average 1.9041248606465997) internal successors, (1708), 899 states have internal predecessors, (1708), 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) [2024-12-02 12:06:12,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 12:06:12,013 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:12,013 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] [2024-12-02 12:06:12,014 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:12,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:12,019 INFO L85 PathProgramCache]: Analyzing trace with hash 920833856, now seen corresponding path program 1 times [2024-12-02 12:06:12,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:12,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455510899] [2024-12-02 12:06:12,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:12,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:12,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:12,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:12,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455510899] [2024-12-02 12:06:12,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455510899] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:12,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:12,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 12:06:12,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613479636] [2024-12-02 12:06:12,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:12,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 12:06:12,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:12,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 12:06:12,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:06:12,253 INFO L87 Difference]: Start difference. First operand has 900 states, 897 states have (on average 1.9041248606465997) internal successors, (1708), 899 states have internal predecessors, (1708), 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 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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) [2024-12-02 12:06:12,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:12,328 INFO L93 Difference]: Finished difference Result 1763 states and 3346 transitions. [2024-12-02 12:06:12,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 12:06:12,329 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 25 [2024-12-02 12:06:12,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:12,343 INFO L225 Difference]: With dead ends: 1763 [2024-12-02 12:06:12,343 INFO L226 Difference]: Without dead ends: 834 [2024-12-02 12:06:12,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:06:12,351 INFO L435 NwaCegarLoop]: 1642 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1642 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:12,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1642 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:06:12,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-12-02 12:06:12,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 834. [2024-12-02 12:06:12,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 832 states have (on average 1.8930288461538463) internal successors, (1575), 833 states have internal predecessors, (1575), 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) [2024-12-02 12:06:12,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1575 transitions. [2024-12-02 12:06:12,422 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1575 transitions. Word has length 25 [2024-12-02 12:06:12,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:12,422 INFO L471 AbstractCegarLoop]: Abstraction has 834 states and 1575 transitions. [2024-12-02 12:06:12,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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) [2024-12-02 12:06:12,422 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1575 transitions. [2024-12-02 12:06:12,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 12:06:12,424 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:12,424 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] [2024-12-02 12:06:12,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 12:06:12,424 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:12,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:12,425 INFO L85 PathProgramCache]: Analyzing trace with hash -768109886, now seen corresponding path program 1 times [2024-12-02 12:06:12,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:12,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892318098] [2024-12-02 12:06:12,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:12,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:12,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:12,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:12,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:12,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892318098] [2024-12-02 12:06:12,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892318098] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:12,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:12,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:06:12,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140866360] [2024-12-02 12:06:12,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:12,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:06:12,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:12,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:06:12,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:06:12,646 INFO L87 Difference]: Start difference. First operand 834 states and 1575 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2024-12-02 12:06:12,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:12,770 INFO L93 Difference]: Finished difference Result 881 states and 1647 transitions. [2024-12-02 12:06:12,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:06:12,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 25 [2024-12-02 12:06:12,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:12,775 INFO L225 Difference]: With dead ends: 881 [2024-12-02 12:06:12,775 INFO L226 Difference]: Without dead ends: 834 [2024-12-02 12:06:12,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:06:12,777 INFO L435 NwaCegarLoop]: 1573 mSDtfsCounter, 0 mSDsluCounter, 4683 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6256 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:12,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6256 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:06:12,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-12-02 12:06:12,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 834. [2024-12-02 12:06:12,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 832 states have (on average 1.8557692307692308) internal successors, (1544), 833 states have internal predecessors, (1544), 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) [2024-12-02 12:06:12,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1544 transitions. [2024-12-02 12:06:12,806 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1544 transitions. Word has length 25 [2024-12-02 12:06:12,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:12,806 INFO L471 AbstractCegarLoop]: Abstraction has 834 states and 1544 transitions. [2024-12-02 12:06:12,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2024-12-02 12:06:12,807 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1544 transitions. [2024-12-02 12:06:12,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-12-02 12:06:12,808 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:12,808 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:12,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 12:06:12,808 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:12,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:12,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1032471947, now seen corresponding path program 1 times [2024-12-02 12:06:12,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:12,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146375223] [2024-12-02 12:06:12,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:12,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:12,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:13,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:13,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:13,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146375223] [2024-12-02 12:06:13,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146375223] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:13,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:13,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:06:13,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265419780] [2024-12-02 12:06:13,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:13,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:06:13,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:13,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:06:13,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:06:13,051 INFO L87 Difference]: Start difference. First operand 834 states and 1544 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2024-12-02 12:06:13,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:13,344 INFO L93 Difference]: Finished difference Result 1264 states and 2224 transitions. [2024-12-02 12:06:13,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 12:06:13,345 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 55 [2024-12-02 12:06:13,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:13,350 INFO L225 Difference]: With dead ends: 1264 [2024-12-02 12:06:13,350 INFO L226 Difference]: Without dead ends: 1221 [2024-12-02 12:06:13,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-12-02 12:06:13,351 INFO L435 NwaCegarLoop]: 1540 mSDtfsCounter, 7906 mSDsluCounter, 1485 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7906 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:13,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7906 Valid, 3025 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:06:13,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2024-12-02 12:06:13,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 875. [2024-12-02 12:06:13,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 873 states have (on average 1.843069873997709) internal successors, (1609), 874 states have internal predecessors, (1609), 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) [2024-12-02 12:06:13,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1609 transitions. [2024-12-02 12:06:13,378 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1609 transitions. Word has length 55 [2024-12-02 12:06:13,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:13,378 INFO L471 AbstractCegarLoop]: Abstraction has 875 states and 1609 transitions. [2024-12-02 12:06:13,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2024-12-02 12:06:13,378 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1609 transitions. [2024-12-02 12:06:13,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-12-02 12:06:13,380 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:13,380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:13,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 12:06:13,380 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:13,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:13,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1347601061, now seen corresponding path program 1 times [2024-12-02 12:06:13,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:13,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811158111] [2024-12-02 12:06:13,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:13,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:13,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:13,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:13,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811158111] [2024-12-02 12:06:13,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811158111] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:13,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:13,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:06:13,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385370076] [2024-12-02 12:06:13,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:13,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:06:13,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:13,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:06:13,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:06:13,471 INFO L87 Difference]: Start difference. First operand 875 states and 1609 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2024-12-02 12:06:13,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:13,505 INFO L93 Difference]: Finished difference Result 1032 states and 1856 transitions. [2024-12-02 12:06:13,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:06:13,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2024-12-02 12:06:13,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:13,509 INFO L225 Difference]: With dead ends: 1032 [2024-12-02 12:06:13,509 INFO L226 Difference]: Without dead ends: 948 [2024-12-02 12:06:13,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:06:13,510 INFO L435 NwaCegarLoop]: 1542 mSDtfsCounter, 1482 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:13,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1605 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:06:13,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-12-02 12:06:13,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 946. [2024-12-02 12:06:13,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 944 states have (on average 1.8209745762711864) internal successors, (1719), 945 states have internal predecessors, (1719), 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) [2024-12-02 12:06:13,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1719 transitions. [2024-12-02 12:06:13,533 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1719 transitions. Word has length 57 [2024-12-02 12:06:13,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:13,533 INFO L471 AbstractCegarLoop]: Abstraction has 946 states and 1719 transitions. [2024-12-02 12:06:13,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2024-12-02 12:06:13,533 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1719 transitions. [2024-12-02 12:06:13,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-12-02 12:06:13,534 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:13,534 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:13,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 12:06:13,535 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:13,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:13,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1281107549, now seen corresponding path program 1 times [2024-12-02 12:06:13,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:13,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109917602] [2024-12-02 12:06:13,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:13,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:13,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:13,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:13,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109917602] [2024-12-02 12:06:13,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109917602] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:13,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:13,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:06:13,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704114625] [2024-12-02 12:06:13,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:13,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:06:13,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:13,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:06:13,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:06:13,862 INFO L87 Difference]: Start difference. First operand 946 states and 1719 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2024-12-02 12:06:14,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:14,071 INFO L93 Difference]: Finished difference Result 1103 states and 1963 transitions. [2024-12-02 12:06:14,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:06:14,072 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 57 [2024-12-02 12:06:14,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:14,076 INFO L225 Difference]: With dead ends: 1103 [2024-12-02 12:06:14,076 INFO L226 Difference]: Without dead ends: 948 [2024-12-02 12:06:14,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:06:14,078 INFO L435 NwaCegarLoop]: 1537 mSDtfsCounter, 7449 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7449 SdHoareTripleChecker+Valid, 1794 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:14,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7449 Valid, 1794 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:06:14,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-12-02 12:06:14,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 946. [2024-12-02 12:06:14,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 944 states have (on average 1.81885593220339) internal successors, (1717), 945 states have internal predecessors, (1717), 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) [2024-12-02 12:06:14,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1717 transitions. [2024-12-02 12:06:14,110 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1717 transitions. Word has length 57 [2024-12-02 12:06:14,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:14,111 INFO L471 AbstractCegarLoop]: Abstraction has 946 states and 1717 transitions. [2024-12-02 12:06:14,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2024-12-02 12:06:14,111 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1717 transitions. [2024-12-02 12:06:14,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-12-02 12:06:14,112 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:14,112 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:14,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 12:06:14,112 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:14,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:14,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1474351433, now seen corresponding path program 1 times [2024-12-02 12:06:14,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:14,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001366883] [2024-12-02 12:06:14,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:14,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:14,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:14,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:14,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:14,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001366883] [2024-12-02 12:06:14,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001366883] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:14,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:14,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 12:06:14,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693006453] [2024-12-02 12:06:14,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:14,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:06:14,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:14,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:06:14,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:06:14,456 INFO L87 Difference]: Start difference. First operand 946 states and 1717 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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) [2024-12-02 12:06:14,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:14,544 INFO L93 Difference]: Finished difference Result 954 states and 1726 transitions. [2024-12-02 12:06:14,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:06:14,545 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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 58 [2024-12-02 12:06:14,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:14,549 INFO L225 Difference]: With dead ends: 954 [2024-12-02 12:06:14,550 INFO L226 Difference]: Without dead ends: 952 [2024-12-02 12:06:14,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:06:14,551 INFO L435 NwaCegarLoop]: 1538 mSDtfsCounter, 0 mSDsluCounter, 9215 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10753 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:14,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10753 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:06:14,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2024-12-02 12:06:14,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 952. [2024-12-02 12:06:14,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 950 states have (on average 1.8126315789473684) internal successors, (1722), 951 states have internal predecessors, (1722), 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) [2024-12-02 12:06:14,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1722 transitions. [2024-12-02 12:06:14,583 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1722 transitions. Word has length 58 [2024-12-02 12:06:14,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:14,583 INFO L471 AbstractCegarLoop]: Abstraction has 952 states and 1722 transitions. [2024-12-02 12:06:14,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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) [2024-12-02 12:06:14,584 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1722 transitions. [2024-12-02 12:06:14,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 12:06:14,585 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:14,585 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:14,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 12:06:14,585 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:14,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:14,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1913192451, now seen corresponding path program 1 times [2024-12-02 12:06:14,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:14,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891298235] [2024-12-02 12:06:14,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:14,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:14,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:14,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:14,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891298235] [2024-12-02 12:06:14,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891298235] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:14,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:14,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:06:14,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380726503] [2024-12-02 12:06:14,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:14,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:06:14,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:14,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:06:14,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:06:14,664 INFO L87 Difference]: Start difference. First operand 952 states and 1722 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-12-02 12:06:14,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:14,703 INFO L93 Difference]: Finished difference Result 1127 states and 1988 transitions. [2024-12-02 12:06:14,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:06:14,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2024-12-02 12:06:14,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:14,708 INFO L225 Difference]: With dead ends: 1127 [2024-12-02 12:06:14,708 INFO L226 Difference]: Without dead ends: 1037 [2024-12-02 12:06:14,709 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:06:14,710 INFO L435 NwaCegarLoop]: 1596 mSDtfsCounter, 1496 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:14,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1665 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:06:14,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2024-12-02 12:06:14,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 1035. [2024-12-02 12:06:14,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 1033 states have (on average 1.78702807357212) internal successors, (1846), 1034 states have internal predecessors, (1846), 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) [2024-12-02 12:06:14,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1846 transitions. [2024-12-02 12:06:14,746 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1846 transitions. Word has length 59 [2024-12-02 12:06:14,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:14,746 INFO L471 AbstractCegarLoop]: Abstraction has 1035 states and 1846 transitions. [2024-12-02 12:06:14,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-12-02 12:06:14,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1846 transitions. [2024-12-02 12:06:14,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 12:06:14,747 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:14,747 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:14,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 12:06:14,747 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:14,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:14,748 INFO L85 PathProgramCache]: Analyzing trace with hash -2117918461, now seen corresponding path program 1 times [2024-12-02 12:06:14,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:14,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123598951] [2024-12-02 12:06:14,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:14,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:14,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:14,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:14,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123598951] [2024-12-02 12:06:14,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123598951] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:14,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:14,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:06:14,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404684352] [2024-12-02 12:06:14,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:14,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:06:14,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:14,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:06:14,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:06:14,830 INFO L87 Difference]: Start difference. First operand 1035 states and 1846 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-12-02 12:06:14,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:14,874 INFO L93 Difference]: Finished difference Result 1493 states and 2538 transitions. [2024-12-02 12:06:14,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:06:14,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2024-12-02 12:06:14,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:14,879 INFO L225 Difference]: With dead ends: 1493 [2024-12-02 12:06:14,879 INFO L226 Difference]: Without dead ends: 1252 [2024-12-02 12:06:14,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:06:14,881 INFO L435 NwaCegarLoop]: 1598 mSDtfsCounter, 1494 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:14,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1671 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:06:14,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2024-12-02 12:06:14,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1250. [2024-12-02 12:06:14,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1248 states have (on average 1.733974358974359) internal successors, (2164), 1249 states have internal predecessors, (2164), 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) [2024-12-02 12:06:14,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 2164 transitions. [2024-12-02 12:06:14,925 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 2164 transitions. Word has length 59 [2024-12-02 12:06:14,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:14,926 INFO L471 AbstractCegarLoop]: Abstraction has 1250 states and 2164 transitions. [2024-12-02 12:06:14,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-12-02 12:06:14,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 2164 transitions. [2024-12-02 12:06:14,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 12:06:14,927 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:14,927 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:14,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 12:06:14,927 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:14,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:14,928 INFO L85 PathProgramCache]: Analyzing trace with hash -879656445, now seen corresponding path program 1 times [2024-12-02 12:06:14,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:14,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965558323] [2024-12-02 12:06:14,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:14,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:15,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:15,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:15,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965558323] [2024-12-02 12:06:15,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965558323] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:15,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:15,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:06:15,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498406902] [2024-12-02 12:06:15,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:15,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:06:15,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:15,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:06:15,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:06:15,018 INFO L87 Difference]: Start difference. First operand 1250 states and 2164 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-12-02 12:06:15,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:15,067 INFO L93 Difference]: Finished difference Result 2114 states and 3450 transitions. [2024-12-02 12:06:15,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:06:15,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2024-12-02 12:06:15,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:15,075 INFO L225 Difference]: With dead ends: 2114 [2024-12-02 12:06:15,075 INFO L226 Difference]: Without dead ends: 1658 [2024-12-02 12:06:15,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:06:15,077 INFO L435 NwaCegarLoop]: 1596 mSDtfsCounter, 1492 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:15,077 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1673 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:06:15,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2024-12-02 12:06:15,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 1656. [2024-12-02 12:06:15,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1656 states, 1654 states have (on average 1.663845223700121) internal successors, (2752), 1655 states have internal predecessors, (2752), 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) [2024-12-02 12:06:15,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1656 states to 1656 states and 2752 transitions. [2024-12-02 12:06:15,140 INFO L78 Accepts]: Start accepts. Automaton has 1656 states and 2752 transitions. Word has length 59 [2024-12-02 12:06:15,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:15,140 INFO L471 AbstractCegarLoop]: Abstraction has 1656 states and 2752 transitions. [2024-12-02 12:06:15,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-12-02 12:06:15,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1656 states and 2752 transitions. [2024-12-02 12:06:15,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 12:06:15,141 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:15,141 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:15,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 12:06:15,141 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:15,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:15,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1199842051, now seen corresponding path program 1 times [2024-12-02 12:06:15,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:15,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187210183] [2024-12-02 12:06:15,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:15,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:15,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:15,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:15,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187210183] [2024-12-02 12:06:15,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187210183] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:15,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:15,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:06:15,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056669973] [2024-12-02 12:06:15,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:15,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:06:15,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:15,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:06:15,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:06:15,217 INFO L87 Difference]: Start difference. First operand 1656 states and 2752 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-12-02 12:06:15,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:15,276 INFO L93 Difference]: Finished difference Result 3284 states and 5130 transitions. [2024-12-02 12:06:15,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:06:15,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2024-12-02 12:06:15,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:15,285 INFO L225 Difference]: With dead ends: 3284 [2024-12-02 12:06:15,286 INFO L226 Difference]: Without dead ends: 2422 [2024-12-02 12:06:15,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:06:15,288 INFO L435 NwaCegarLoop]: 1594 mSDtfsCounter, 1490 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:15,288 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1675 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:06:15,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2422 states. [2024-12-02 12:06:15,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2422 to 2420. [2024-12-02 12:06:15,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 2418 states have (on average 1.5847808105872623) internal successors, (3832), 2419 states have internal predecessors, (3832), 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) [2024-12-02 12:06:15,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 3832 transitions. [2024-12-02 12:06:15,383 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 3832 transitions. Word has length 59 [2024-12-02 12:06:15,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:15,384 INFO L471 AbstractCegarLoop]: Abstraction has 2420 states and 3832 transitions. [2024-12-02 12:06:15,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-12-02 12:06:15,384 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 3832 transitions. [2024-12-02 12:06:15,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 12:06:15,385 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:15,385 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:15,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 12:06:15,385 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:15,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:15,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1314192381, now seen corresponding path program 1 times [2024-12-02 12:06:15,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:15,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184166581] [2024-12-02 12:06:15,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:15,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:15,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:15,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:15,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184166581] [2024-12-02 12:06:15,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184166581] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:15,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:15,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:06:15,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186280347] [2024-12-02 12:06:15,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:15,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:06:15,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:15,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:06:15,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:06:15,461 INFO L87 Difference]: Start difference. First operand 2420 states and 3832 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-12-02 12:06:15,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:15,542 INFO L93 Difference]: Finished difference Result 5480 states and 8202 transitions. [2024-12-02 12:06:15,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:06:15,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2024-12-02 12:06:15,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:15,556 INFO L225 Difference]: With dead ends: 5480 [2024-12-02 12:06:15,556 INFO L226 Difference]: Without dead ends: 3854 [2024-12-02 12:06:15,559 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:06:15,559 INFO L435 NwaCegarLoop]: 1592 mSDtfsCounter, 1488 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:15,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1677 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:06:15,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3854 states. [2024-12-02 12:06:15,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3854 to 3852. [2024-12-02 12:06:15,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3852 states, 3850 states have (on average 1.5064935064935066) internal successors, (5800), 3851 states have internal predecessors, (5800), 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) [2024-12-02 12:06:15,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3852 states to 3852 states and 5800 transitions. [2024-12-02 12:06:15,693 INFO L78 Accepts]: Start accepts. Automaton has 3852 states and 5800 transitions. Word has length 59 [2024-12-02 12:06:15,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:15,693 INFO L471 AbstractCegarLoop]: Abstraction has 3852 states and 5800 transitions. [2024-12-02 12:06:15,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-12-02 12:06:15,694 INFO L276 IsEmpty]: Start isEmpty. Operand 3852 states and 5800 transitions. [2024-12-02 12:06:15,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-12-02 12:06:15,694 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:15,694 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:15,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 12:06:15,694 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:15,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:15,695 INFO L85 PathProgramCache]: Analyzing trace with hash 2044228901, now seen corresponding path program 1 times [2024-12-02 12:06:15,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:15,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829051823] [2024-12-02 12:06:15,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:15,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:15,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:15,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:15,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829051823] [2024-12-02 12:06:15,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829051823] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:15,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:15,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:06:15,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919363741] [2024-12-02 12:06:15,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:15,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:06:15,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:15,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:06:15,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:06:15,826 INFO L87 Difference]: Start difference. First operand 3852 states and 5800 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-12-02 12:06:21,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:21,259 INFO L93 Difference]: Finished difference Result 6107 states and 10109 transitions. [2024-12-02 12:06:21,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:06:21,259 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60 [2024-12-02 12:06:21,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:21,266 INFO L225 Difference]: With dead ends: 6107 [2024-12-02 12:06:21,267 INFO L226 Difference]: Without dead ends: 5354 [2024-12-02 12:06:21,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:06:21,268 INFO L435 NwaCegarLoop]: 798 mSDtfsCounter, 2409 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5154 mSolverCounterSat, 1245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2409 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 6399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1245 IncrementalHoareTripleChecker+Valid, 5154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:21,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2409 Valid, 816 Invalid, 6399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1245 Valid, 5154 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-12-02 12:06:21,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5354 states. [2024-12-02 12:06:21,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5354 to 5354. [2024-12-02 12:06:21,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5352 states have (on average 1.452914798206278) internal successors, (7776), 5353 states have internal predecessors, (7776), 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) [2024-12-02 12:06:21,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 7776 transitions. [2024-12-02 12:06:21,348 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 7776 transitions. Word has length 60 [2024-12-02 12:06:21,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:21,348 INFO L471 AbstractCegarLoop]: Abstraction has 5354 states and 7776 transitions. [2024-12-02 12:06:21,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-12-02 12:06:21,348 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 7776 transitions. [2024-12-02 12:06:21,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 12:06:21,350 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:21,350 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 12:06:21,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 12:06:21,351 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:21,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:21,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1793062525, now seen corresponding path program 1 times [2024-12-02 12:06:21,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:21,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773238221] [2024-12-02 12:06:21,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:21,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:21,470 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 12:06:21,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:21,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773238221] [2024-12-02 12:06:21,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773238221] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:21,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:21,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:06:21,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683361386] [2024-12-02 12:06:21,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:21,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:06:21,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:21,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:06:21,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:06:21,472 INFO L87 Difference]: Start difference. First operand 5354 states and 7776 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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) [2024-12-02 12:06:21,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:21,731 INFO L93 Difference]: Finished difference Result 20422 states and 29046 transitions. [2024-12-02 12:06:21,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:06:21,731 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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 79 [2024-12-02 12:06:21,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:21,767 INFO L225 Difference]: With dead ends: 20422 [2024-12-02 12:06:21,767 INFO L226 Difference]: Without dead ends: 18244 [2024-12-02 12:06:21,772 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:06:21,772 INFO L435 NwaCegarLoop]: 1609 mSDtfsCounter, 6314 mSDsluCounter, 2098 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6314 SdHoareTripleChecker+Valid, 3707 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:21,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6314 Valid, 3707 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:06:21,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18244 states. [2024-12-02 12:06:21,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18244 to 7978. [2024-12-02 12:06:21,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7978 states, 7976 states have (on average 1.4343029087261785) internal successors, (11440), 7977 states have internal predecessors, (11440), 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) [2024-12-02 12:06:21,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7978 states to 7978 states and 11440 transitions. [2024-12-02 12:06:21,952 INFO L78 Accepts]: Start accepts. Automaton has 7978 states and 11440 transitions. Word has length 79 [2024-12-02 12:06:21,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:21,952 INFO L471 AbstractCegarLoop]: Abstraction has 7978 states and 11440 transitions. [2024-12-02 12:06:21,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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) [2024-12-02 12:06:21,953 INFO L276 IsEmpty]: Start isEmpty. Operand 7978 states and 11440 transitions. [2024-12-02 12:06:21,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 12:06:21,955 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:21,955 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 12:06:21,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 12:06:21,956 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:21,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:21,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1529206141, now seen corresponding path program 1 times [2024-12-02 12:06:21,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:21,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433679741] [2024-12-02 12:06:21,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:21,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:22,068 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 12:06:22,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:22,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433679741] [2024-12-02 12:06:22,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433679741] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:22,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:22,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:06:22,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829857894] [2024-12-02 12:06:22,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:22,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:06:22,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:22,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:06:22,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:06:22,070 INFO L87 Difference]: Start difference. First operand 7978 states and 11440 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 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) [2024-12-02 12:06:22,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:22,458 INFO L93 Difference]: Finished difference Result 23478 states and 33334 transitions. [2024-12-02 12:06:22,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:06:22,459 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 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 79 [2024-12-02 12:06:22,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:22,489 INFO L225 Difference]: With dead ends: 23478 [2024-12-02 12:06:22,489 INFO L226 Difference]: Without dead ends: 20420 [2024-12-02 12:06:22,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:06:22,494 INFO L435 NwaCegarLoop]: 1608 mSDtfsCounter, 6314 mSDsluCounter, 2087 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6314 SdHoareTripleChecker+Valid, 3695 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:22,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6314 Valid, 3695 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:06:22,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20420 states. [2024-12-02 12:06:22,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20420 to 12122. [2024-12-02 12:06:22,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12122 states, 12120 states have (on average 1.4204620462046205) internal successors, (17216), 12121 states have internal predecessors, (17216), 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) [2024-12-02 12:06:22,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12122 states to 12122 states and 17216 transitions. [2024-12-02 12:06:22,734 INFO L78 Accepts]: Start accepts. Automaton has 12122 states and 17216 transitions. Word has length 79 [2024-12-02 12:06:22,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:22,734 INFO L471 AbstractCegarLoop]: Abstraction has 12122 states and 17216 transitions. [2024-12-02 12:06:22,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 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) [2024-12-02 12:06:22,735 INFO L276 IsEmpty]: Start isEmpty. Operand 12122 states and 17216 transitions. [2024-12-02 12:06:22,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 12:06:22,737 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:22,737 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 12:06:22,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 12:06:22,737 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:22,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:22,737 INFO L85 PathProgramCache]: Analyzing trace with hash -290944125, now seen corresponding path program 1 times [2024-12-02 12:06:22,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:22,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460693078] [2024-12-02 12:06:22,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:22,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:22,851 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 12:06:22,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:22,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460693078] [2024-12-02 12:06:22,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460693078] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:22,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:22,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:06:22,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547469831] [2024-12-02 12:06:22,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:22,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:06:22,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:22,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:06:22,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:06:22,852 INFO L87 Difference]: Start difference. First operand 12122 states and 17216 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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) [2024-12-02 12:06:23,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:23,265 INFO L93 Difference]: Finished difference Result 26534 states and 37606 transitions. [2024-12-02 12:06:23,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:06:23,265 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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 79 [2024-12-02 12:06:23,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:23,298 INFO L225 Difference]: With dead ends: 26534 [2024-12-02 12:06:23,298 INFO L226 Difference]: Without dead ends: 23476 [2024-12-02 12:06:23,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:06:23,304 INFO L435 NwaCegarLoop]: 1606 mSDtfsCounter, 6339 mSDsluCounter, 2036 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6339 SdHoareTripleChecker+Valid, 3642 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:23,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6339 Valid, 3642 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:06:23,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23476 states. [2024-12-02 12:06:23,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23476 to 15178. [2024-12-02 12:06:23,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15178 states, 15176 states have (on average 1.4159198734844491) internal successors, (21488), 15177 states have internal predecessors, (21488), 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) [2024-12-02 12:06:23,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15178 states to 15178 states and 21488 transitions. [2024-12-02 12:06:23,613 INFO L78 Accepts]: Start accepts. Automaton has 15178 states and 21488 transitions. Word has length 79 [2024-12-02 12:06:23,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:23,613 INFO L471 AbstractCegarLoop]: Abstraction has 15178 states and 21488 transitions. [2024-12-02 12:06:23,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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) [2024-12-02 12:06:23,613 INFO L276 IsEmpty]: Start isEmpty. Operand 15178 states and 21488 transitions. [2024-12-02 12:06:23,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 12:06:23,615 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:23,615 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 12:06:23,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 12:06:23,616 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:23,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:23,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1788554371, now seen corresponding path program 1 times [2024-12-02 12:06:23,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:23,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3873647] [2024-12-02 12:06:23,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:23,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:23,737 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 12:06:23,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:23,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3873647] [2024-12-02 12:06:23,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3873647] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:23,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:23,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:06:23,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823060560] [2024-12-02 12:06:23,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:23,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:06:23,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:23,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:06:23,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:06:23,739 INFO L87 Difference]: Start difference. First operand 15178 states and 21488 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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) [2024-12-02 12:06:24,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:24,311 INFO L93 Difference]: Finished difference Result 29590 states and 41878 transitions. [2024-12-02 12:06:24,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:06:24,312 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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 79 [2024-12-02 12:06:24,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:24,369 INFO L225 Difference]: With dead ends: 29590 [2024-12-02 12:06:24,369 INFO L226 Difference]: Without dead ends: 26532 [2024-12-02 12:06:24,376 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:06:24,377 INFO L435 NwaCegarLoop]: 1604 mSDtfsCounter, 6378 mSDsluCounter, 2032 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6378 SdHoareTripleChecker+Valid, 3636 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:24,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6378 Valid, 3636 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:06:24,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26532 states. [2024-12-02 12:06:24,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26532 to 18234. [2024-12-02 12:06:24,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18234 states, 18232 states have (on average 1.4129003949100483) internal successors, (25760), 18233 states have internal predecessors, (25760), 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) [2024-12-02 12:06:24,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18234 states to 18234 states and 25760 transitions. [2024-12-02 12:06:24,833 INFO L78 Accepts]: Start accepts. Automaton has 18234 states and 25760 transitions. Word has length 79 [2024-12-02 12:06:24,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:24,834 INFO L471 AbstractCegarLoop]: Abstraction has 18234 states and 25760 transitions. [2024-12-02 12:06:24,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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) [2024-12-02 12:06:24,834 INFO L276 IsEmpty]: Start isEmpty. Operand 18234 states and 25760 transitions. [2024-12-02 12:06:24,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 12:06:24,836 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:24,836 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 12:06:24,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 12:06:24,837 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:24,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:24,837 INFO L85 PathProgramCache]: Analyzing trace with hash -725480061, now seen corresponding path program 1 times [2024-12-02 12:06:24,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:24,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314579572] [2024-12-02 12:06:24,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:24,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:24,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:24,974 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 12:06:24,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:24,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314579572] [2024-12-02 12:06:24,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314579572] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:24,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:24,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:06:24,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353155710] [2024-12-02 12:06:24,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:24,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:06:24,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:24,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:06:24,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:06:24,975 INFO L87 Difference]: Start difference. First operand 18234 states and 25760 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 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) [2024-12-02 12:06:25,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:25,781 INFO L93 Difference]: Finished difference Result 32646 states and 46150 transitions. [2024-12-02 12:06:25,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:06:25,782 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 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 79 [2024-12-02 12:06:25,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:25,837 INFO L225 Difference]: With dead ends: 32646 [2024-12-02 12:06:25,837 INFO L226 Difference]: Without dead ends: 29588 [2024-12-02 12:06:25,849 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:06:25,850 INFO L435 NwaCegarLoop]: 1603 mSDtfsCounter, 6334 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6334 SdHoareTripleChecker+Valid, 3688 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:25,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6334 Valid, 3688 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:06:25,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29588 states. [2024-12-02 12:06:26,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29588 to 21290. [2024-12-02 12:06:26,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21290 states, 21288 states have (on average 1.4107478391582111) internal successors, (30032), 21289 states have internal predecessors, (30032), 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) [2024-12-02 12:06:26,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21290 states to 21290 states and 30032 transitions. [2024-12-02 12:06:26,413 INFO L78 Accepts]: Start accepts. Automaton has 21290 states and 30032 transitions. Word has length 79 [2024-12-02 12:06:26,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:26,414 INFO L471 AbstractCegarLoop]: Abstraction has 21290 states and 30032 transitions. [2024-12-02 12:06:26,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 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) [2024-12-02 12:06:26,414 INFO L276 IsEmpty]: Start isEmpty. Operand 21290 states and 30032 transitions. [2024-12-02 12:06:26,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 12:06:26,416 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:26,416 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 12:06:26,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 12:06:26,416 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:26,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:26,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1265022664, now seen corresponding path program 1 times [2024-12-02 12:06:26,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:26,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597034160] [2024-12-02 12:06:26,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:26,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:26,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:26,480 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:26,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:26,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597034160] [2024-12-02 12:06:26,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597034160] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:26,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:26,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:06:26,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642464675] [2024-12-02 12:06:26,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:26,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:06:26,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:26,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:06:26,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:06:26,481 INFO L87 Difference]: Start difference. First operand 21290 states and 30032 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2024-12-02 12:06:26,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:26,803 INFO L93 Difference]: Finished difference Result 40286 states and 56610 transitions. [2024-12-02 12:06:26,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:06:26,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 80 [2024-12-02 12:06:26,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:26,821 INFO L225 Difference]: With dead ends: 40286 [2024-12-02 12:06:26,821 INFO L226 Difference]: Without dead ends: 21292 [2024-12-02 12:06:26,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:06:26,833 INFO L435 NwaCegarLoop]: 1579 mSDtfsCounter, 45 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:26,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3111 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:06:26,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21292 states. [2024-12-02 12:06:27,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21292 to 21290. [2024-12-02 12:06:27,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21290 states, 21288 states have (on average 1.3968432919954905) internal successors, (29736), 21289 states have internal predecessors, (29736), 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) [2024-12-02 12:06:27,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21290 states to 21290 states and 29736 transitions. [2024-12-02 12:06:27,226 INFO L78 Accepts]: Start accepts. Automaton has 21290 states and 29736 transitions. Word has length 80 [2024-12-02 12:06:27,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:27,226 INFO L471 AbstractCegarLoop]: Abstraction has 21290 states and 29736 transitions. [2024-12-02 12:06:27,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2024-12-02 12:06:27,226 INFO L276 IsEmpty]: Start isEmpty. Operand 21290 states and 29736 transitions. [2024-12-02 12:06:27,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 12:06:27,228 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:27,228 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 12:06:27,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 12:06:27,228 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:27,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:27,229 INFO L85 PathProgramCache]: Analyzing trace with hash -2037489509, now seen corresponding path program 1 times [2024-12-02 12:06:27,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:27,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661821132] [2024-12-02 12:06:27,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:27,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:27,291 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:27,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:27,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661821132] [2024-12-02 12:06:27,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661821132] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:27,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:27,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:06:27,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902857610] [2024-12-02 12:06:27,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:27,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:06:27,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:27,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:06:27,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:06:27,292 INFO L87 Difference]: Start difference. First operand 21290 states and 29736 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2024-12-02 12:06:27,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:27,434 INFO L93 Difference]: Finished difference Result 28386 states and 39639 transitions. [2024-12-02 12:06:27,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:06:27,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 81 [2024-12-02 12:06:27,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:27,443 INFO L225 Difference]: With dead ends: 28386 [2024-12-02 12:06:27,443 INFO L226 Difference]: Without dead ends: 9392 [2024-12-02 12:06:27,453 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:06:27,454 INFO L435 NwaCegarLoop]: 1577 mSDtfsCounter, 39 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3108 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:27,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3108 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:06:27,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9392 states. [2024-12-02 12:06:27,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9392 to 9383. [2024-12-02 12:06:27,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9383 states, 9381 states have (on average 1.4118963863127598) internal successors, (13245), 9382 states have internal predecessors, (13245), 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) [2024-12-02 12:06:27,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9383 states to 9383 states and 13245 transitions. [2024-12-02 12:06:27,727 INFO L78 Accepts]: Start accepts. Automaton has 9383 states and 13245 transitions. Word has length 81 [2024-12-02 12:06:27,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:27,728 INFO L471 AbstractCegarLoop]: Abstraction has 9383 states and 13245 transitions. [2024-12-02 12:06:27,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2024-12-02 12:06:27,728 INFO L276 IsEmpty]: Start isEmpty. Operand 9383 states and 13245 transitions. [2024-12-02 12:06:27,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 12:06:27,729 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:27,729 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 12:06:27,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 12:06:27,730 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:27,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:27,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1483523354, now seen corresponding path program 1 times [2024-12-02 12:06:27,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:27,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241960506] [2024-12-02 12:06:27,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:27,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:27,819 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:27,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:27,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241960506] [2024-12-02 12:06:27,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241960506] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:27,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:27,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:06:27,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864211083] [2024-12-02 12:06:27,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:27,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:06:27,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:27,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:06:27,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:06:27,821 INFO L87 Difference]: Start difference. First operand 9383 states and 13245 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-12-02 12:06:27,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:27,916 INFO L93 Difference]: Finished difference Result 12923 states and 18135 transitions. [2024-12-02 12:06:27,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:06:27,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 82 [2024-12-02 12:06:27,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:27,921 INFO L225 Difference]: With dead ends: 12923 [2024-12-02 12:06:27,921 INFO L226 Difference]: Without dead ends: 5849 [2024-12-02 12:06:27,925 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:06:27,926 INFO L435 NwaCegarLoop]: 1571 mSDtfsCounter, 41 mSDsluCounter, 1516 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3087 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:27,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3087 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:06:27,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5849 states. [2024-12-02 12:06:28,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5849 to 5847. [2024-12-02 12:06:28,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5847 states, 5845 states have (on average 1.4208725406330196) internal successors, (8305), 5846 states have internal predecessors, (8305), 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) [2024-12-02 12:06:28,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5847 states to 5847 states and 8305 transitions. [2024-12-02 12:06:28,052 INFO L78 Accepts]: Start accepts. Automaton has 5847 states and 8305 transitions. Word has length 82 [2024-12-02 12:06:28,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:28,052 INFO L471 AbstractCegarLoop]: Abstraction has 5847 states and 8305 transitions. [2024-12-02 12:06:28,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-12-02 12:06:28,052 INFO L276 IsEmpty]: Start isEmpty. Operand 5847 states and 8305 transitions. [2024-12-02 12:06:28,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 12:06:28,052 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:28,053 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 12:06:28,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 12:06:28,053 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:28,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:28,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1068531220, now seen corresponding path program 1 times [2024-12-02 12:06:28,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:28,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471399383] [2024-12-02 12:06:28,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:28,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:28,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:28,138 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:28,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:28,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471399383] [2024-12-02 12:06:28,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471399383] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:28,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:28,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:06:28,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879592776] [2024-12-02 12:06:28,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:28,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:06:28,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:28,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:06:28,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:06:28,139 INFO L87 Difference]: Start difference. First operand 5847 states and 8305 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2024-12-02 12:06:28,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:28,210 INFO L93 Difference]: Finished difference Result 7619 states and 10725 transitions. [2024-12-02 12:06:28,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:06:28,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 84 [2024-12-02 12:06:28,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:28,216 INFO L225 Difference]: With dead ends: 7619 [2024-12-02 12:06:28,216 INFO L226 Difference]: Without dead ends: 4081 [2024-12-02 12:06:28,219 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:06:28,219 INFO L435 NwaCegarLoop]: 1564 mSDtfsCounter, 38 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:28,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3072 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:06:28,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4081 states. [2024-12-02 12:06:28,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4081 to 4079. [2024-12-02 12:06:28,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4079 states, 4077 states have (on average 1.4375766494971793) internal successors, (5861), 4078 states have internal predecessors, (5861), 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) [2024-12-02 12:06:28,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4079 states to 4079 states and 5861 transitions. [2024-12-02 12:06:28,305 INFO L78 Accepts]: Start accepts. Automaton has 4079 states and 5861 transitions. Word has length 84 [2024-12-02 12:06:28,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:28,306 INFO L471 AbstractCegarLoop]: Abstraction has 4079 states and 5861 transitions. [2024-12-02 12:06:28,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2024-12-02 12:06:28,306 INFO L276 IsEmpty]: Start isEmpty. Operand 4079 states and 5861 transitions. [2024-12-02 12:06:28,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 12:06:28,307 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:28,307 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1] [2024-12-02 12:06:28,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 12:06:28,307 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:28,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:28,308 INFO L85 PathProgramCache]: Analyzing trace with hash -2111828674, now seen corresponding path program 1 times [2024-12-02 12:06:28,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:28,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228389303] [2024-12-02 12:06:28,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:28,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:28,389 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:28,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:28,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228389303] [2024-12-02 12:06:28,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228389303] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:28,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:28,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:06:28,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050005682] [2024-12-02 12:06:28,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:28,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:06:28,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:28,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:06:28,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:06:28,390 INFO L87 Difference]: Start difference. First operand 4079 states and 5861 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-12-02 12:06:28,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:28,434 INFO L93 Difference]: Finished difference Result 4967 states and 7059 transitions. [2024-12-02 12:06:28,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:06:28,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 86 [2024-12-02 12:06:28,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:28,439 INFO L225 Difference]: With dead ends: 4967 [2024-12-02 12:06:28,439 INFO L226 Difference]: Without dead ends: 3197 [2024-12-02 12:06:28,441 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:06:28,442 INFO L435 NwaCegarLoop]: 1557 mSDtfsCounter, 35 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3057 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:28,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3057 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:06:28,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2024-12-02 12:06:28,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 3195. [2024-12-02 12:06:28,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3195 states, 3193 states have (on average 1.4569370497964298) internal successors, (4652), 3194 states have internal predecessors, (4652), 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) [2024-12-02 12:06:28,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3195 states to 3195 states and 4652 transitions. [2024-12-02 12:06:28,498 INFO L78 Accepts]: Start accepts. Automaton has 3195 states and 4652 transitions. Word has length 86 [2024-12-02 12:06:28,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:28,498 INFO L471 AbstractCegarLoop]: Abstraction has 3195 states and 4652 transitions. [2024-12-02 12:06:28,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-12-02 12:06:28,498 INFO L276 IsEmpty]: Start isEmpty. Operand 3195 states and 4652 transitions. [2024-12-02 12:06:28,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-12-02 12:06:28,499 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:28,499 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:28,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 12:06:28,499 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:28,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:28,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1630042352, now seen corresponding path program 1 times [2024-12-02 12:06:28,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:28,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269248591] [2024-12-02 12:06:28,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:28,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:28,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:28,937 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:28,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:28,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269248591] [2024-12-02 12:06:28,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269248591] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:06:28,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450142618] [2024-12-02 12:06:28,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:28,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:06:28,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:06:28,940 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:06:28,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 12:06:29,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:29,069 INFO L256 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 12:06:29,073 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:06:29,608 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:29,608 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:06:30,630 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:30,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450142618] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:06:30,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:06:30,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-12-02 12:06:30,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145975532] [2024-12-02 12:06:30,631 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:06:30,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 12:06:30,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:30,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 12:06:30,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2024-12-02 12:06:30,632 INFO L87 Difference]: Start difference. First operand 3195 states and 4652 transitions. Second operand has 25 states, 25 states have (on average 8.72) internal successors, (218), 24 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) [2024-12-02 12:06:32,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:32,324 INFO L93 Difference]: Finished difference Result 6901 states and 9625 transitions. [2024-12-02 12:06:32,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-12-02 12:06:32,325 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 8.72) internal successors, (218), 24 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 88 [2024-12-02 12:06:32,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:32,331 INFO L225 Difference]: With dead ends: 6901 [2024-12-02 12:06:32,331 INFO L226 Difference]: Without dead ends: 6015 [2024-12-02 12:06:32,334 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=576, Invalid=2180, Unknown=0, NotChecked=0, Total=2756 [2024-12-02 12:06:32,335 INFO L435 NwaCegarLoop]: 1524 mSDtfsCounter, 20559 mSDsluCounter, 5335 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20559 SdHoareTripleChecker+Valid, 6859 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:32,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20559 Valid, 6859 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 12:06:32,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6015 states. [2024-12-02 12:06:32,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6015 to 5951. [2024-12-02 12:06:32,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5951 states, 5949 states have (on average 1.3872919818456884) internal successors, (8253), 5950 states have internal predecessors, (8253), 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) [2024-12-02 12:06:32,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5951 states to 5951 states and 8253 transitions. [2024-12-02 12:06:32,493 INFO L78 Accepts]: Start accepts. Automaton has 5951 states and 8253 transitions. Word has length 88 [2024-12-02 12:06:32,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:32,493 INFO L471 AbstractCegarLoop]: Abstraction has 5951 states and 8253 transitions. [2024-12-02 12:06:32,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.72) internal successors, (218), 24 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) [2024-12-02 12:06:32,494 INFO L276 IsEmpty]: Start isEmpty. Operand 5951 states and 8253 transitions. [2024-12-02 12:06:32,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-12-02 12:06:32,495 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:32,495 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] [2024-12-02 12:06:32,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 12:06:32,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-12-02 12:06:32,696 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:32,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:32,696 INFO L85 PathProgramCache]: Analyzing trace with hash 861674437, now seen corresponding path program 1 times [2024-12-02 12:06:32,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:32,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456316008] [2024-12-02 12:06:32,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:32,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:33,251 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:33,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:33,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456316008] [2024-12-02 12:06:33,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456316008] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:06:33,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143350444] [2024-12-02 12:06:33,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:33,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:06:33,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:06:33,261 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:06:33,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 12:06:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:33,387 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 12:06:33,390 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:06:33,867 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:33,867 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:06:34,701 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:34,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143350444] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:06:34,701 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:06:34,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-12-02 12:06:34,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073370257] [2024-12-02 12:06:34,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:06:34,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 12:06:34,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:34,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 12:06:34,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2024-12-02 12:06:34,703 INFO L87 Difference]: Start difference. First operand 5951 states and 8253 transitions. Second operand has 21 states, 21 states have (on average 9.857142857142858) internal successors, (207), 20 states have internal predecessors, (207), 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) [2024-12-02 12:06:35,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:35,174 INFO L93 Difference]: Finished difference Result 13549 states and 18292 transitions. [2024-12-02 12:06:35,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 12:06:35,174 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 9.857142857142858) internal successors, (207), 20 states have internal predecessors, (207), 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 89 [2024-12-02 12:06:35,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:35,182 INFO L225 Difference]: With dead ends: 13549 [2024-12-02 12:06:35,182 INFO L226 Difference]: Without dead ends: 9907 [2024-12-02 12:06:35,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=215, Invalid=597, Unknown=0, NotChecked=0, Total=812 [2024-12-02 12:06:35,185 INFO L435 NwaCegarLoop]: 1513 mSDtfsCounter, 12216 mSDsluCounter, 3296 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12216 SdHoareTripleChecker+Valid, 4809 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:35,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12216 Valid, 4809 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:06:35,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9907 states. [2024-12-02 12:06:35,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9907 to 9799. [2024-12-02 12:06:35,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9799 states, 9797 states have (on average 1.346636725528223) internal successors, (13193), 9798 states have internal predecessors, (13193), 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) [2024-12-02 12:06:35,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9799 states to 9799 states and 13193 transitions. [2024-12-02 12:06:35,439 INFO L78 Accepts]: Start accepts. Automaton has 9799 states and 13193 transitions. Word has length 89 [2024-12-02 12:06:35,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:35,440 INFO L471 AbstractCegarLoop]: Abstraction has 9799 states and 13193 transitions. [2024-12-02 12:06:35,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 9.857142857142858) internal successors, (207), 20 states have internal predecessors, (207), 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) [2024-12-02 12:06:35,440 INFO L276 IsEmpty]: Start isEmpty. Operand 9799 states and 13193 transitions. [2024-12-02 12:06:35,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 12:06:35,441 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:35,441 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] [2024-12-02 12:06:35,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 12:06:35,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-12-02 12:06:35,641 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:35,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:35,642 INFO L85 PathProgramCache]: Analyzing trace with hash 713310802, now seen corresponding path program 1 times [2024-12-02 12:06:35,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:35,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59886358] [2024-12-02 12:06:35,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:35,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:35,997 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:35,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:35,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59886358] [2024-12-02 12:06:35,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59886358] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:06:35,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022335887] [2024-12-02 12:06:35,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:35,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:06:35,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:06:35,999 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:06:36,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 12:06:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:36,116 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 12:06:36,118 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:06:36,805 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:36,806 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:06:38,210 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:38,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022335887] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:06:38,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:06:38,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 28 [2024-12-02 12:06:38,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984497174] [2024-12-02 12:06:38,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:06:38,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 12:06:38,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:38,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 12:06:38,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=669, Unknown=0, NotChecked=0, Total=756 [2024-12-02 12:06:38,212 INFO L87 Difference]: Start difference. First operand 9799 states and 13193 transitions. Second operand has 28 states, 28 states have (on average 9.071428571428571) internal successors, (254), 28 states have internal predecessors, (254), 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) [2024-12-02 12:06:40,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:40,697 INFO L93 Difference]: Finished difference Result 24165 states and 31960 transitions. [2024-12-02 12:06:40,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-12-02 12:06:40,698 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 9.071428571428571) internal successors, (254), 28 states have internal predecessors, (254), 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 90 [2024-12-02 12:06:40,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:40,709 INFO L225 Difference]: With dead ends: 24165 [2024-12-02 12:06:40,709 INFO L226 Difference]: Without dead ends: 16675 [2024-12-02 12:06:40,714 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 789 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=758, Invalid=3024, Unknown=0, NotChecked=0, Total=3782 [2024-12-02 12:06:40,714 INFO L435 NwaCegarLoop]: 1505 mSDtfsCounter, 17778 mSDsluCounter, 15129 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17778 SdHoareTripleChecker+Valid, 16634 SdHoareTripleChecker+Invalid, 995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:40,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17778 Valid, 16634 Invalid, 995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 12:06:40,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16675 states. [2024-12-02 12:06:41,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16675 to 16663. [2024-12-02 12:06:41,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16663 states, 16661 states have (on average 1.312106116079467) internal successors, (21861), 16662 states have internal predecessors, (21861), 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) [2024-12-02 12:06:41,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16663 states to 16663 states and 21861 transitions. [2024-12-02 12:06:41,069 INFO L78 Accepts]: Start accepts. Automaton has 16663 states and 21861 transitions. Word has length 90 [2024-12-02 12:06:41,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:41,069 INFO L471 AbstractCegarLoop]: Abstraction has 16663 states and 21861 transitions. [2024-12-02 12:06:41,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.071428571428571) internal successors, (254), 28 states have internal predecessors, (254), 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) [2024-12-02 12:06:41,069 INFO L276 IsEmpty]: Start isEmpty. Operand 16663 states and 21861 transitions. [2024-12-02 12:06:41,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 12:06:41,071 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:41,071 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] [2024-12-02 12:06:41,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 12:06:41,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-12-02 12:06:41,271 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:41,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:41,272 INFO L85 PathProgramCache]: Analyzing trace with hash 157562109, now seen corresponding path program 1 times [2024-12-02 12:06:41,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:41,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916801934] [2024-12-02 12:06:41,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:41,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:41,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:41,609 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:41,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:41,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916801934] [2024-12-02 12:06:41,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916801934] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:06:41,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724009141] [2024-12-02 12:06:41,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:41,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:06:41,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:06:41,611 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:06:41,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 12:06:41,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:41,738 INFO L256 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 12:06:41,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:06:42,415 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:42,415 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:06:43,376 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:43,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724009141] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:06:43,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:06:43,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 32 [2024-12-02 12:06:43,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833089337] [2024-12-02 12:06:43,376 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:06:43,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-12-02 12:06:43,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:43,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-12-02 12:06:43,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=887, Unknown=0, NotChecked=0, Total=992 [2024-12-02 12:06:43,378 INFO L87 Difference]: Start difference. First operand 16663 states and 21861 transitions. Second operand has 32 states, 32 states have (on average 7.40625) internal successors, (237), 32 states have internal predecessors, (237), 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) [2024-12-02 12:06:47,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:47,817 INFO L93 Difference]: Finished difference Result 66037 states and 85476 transitions. [2024-12-02 12:06:47,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-12-02 12:06:47,818 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 7.40625) internal successors, (237), 32 states have internal predecessors, (237), 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 91 [2024-12-02 12:06:47,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:47,872 INFO L225 Difference]: With dead ends: 66037 [2024-12-02 12:06:47,872 INFO L226 Difference]: Without dead ends: 51683 [2024-12-02 12:06:47,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2150 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1452, Invalid=6738, Unknown=0, NotChecked=0, Total=8190 [2024-12-02 12:06:47,887 INFO L435 NwaCegarLoop]: 1555 mSDtfsCounter, 15295 mSDsluCounter, 17514 mSDsCounter, 0 mSdLazyCounter, 1752 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15295 SdHoareTripleChecker+Valid, 19069 SdHoareTripleChecker+Invalid, 1797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:47,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15295 Valid, 19069 Invalid, 1797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1752 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 12:06:47,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51683 states. [2024-12-02 12:06:48,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51683 to 29575. [2024-12-02 12:06:48,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29575 states, 29573 states have (on average 1.2843133939742333) internal successors, (37981), 29574 states have internal predecessors, (37981), 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) [2024-12-02 12:06:48,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29575 states to 29575 states and 37981 transitions. [2024-12-02 12:06:48,987 INFO L78 Accepts]: Start accepts. Automaton has 29575 states and 37981 transitions. Word has length 91 [2024-12-02 12:06:48,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:48,988 INFO L471 AbstractCegarLoop]: Abstraction has 29575 states and 37981 transitions. [2024-12-02 12:06:48,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 7.40625) internal successors, (237), 32 states have internal predecessors, (237), 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) [2024-12-02 12:06:48,988 INFO L276 IsEmpty]: Start isEmpty. Operand 29575 states and 37981 transitions. [2024-12-02 12:06:48,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 12:06:48,989 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:48,990 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] [2024-12-02 12:06:48,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 12:06:49,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-12-02 12:06:49,191 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:49,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:49,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1785072166, now seen corresponding path program 1 times [2024-12-02 12:06:49,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:49,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450697211] [2024-12-02 12:06:49,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:49,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:50,181 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:50,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:50,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450697211] [2024-12-02 12:06:50,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450697211] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:06:50,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690926817] [2024-12-02 12:06:50,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:50,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:06:50,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:06:50,184 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:06:50,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 12:06:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:50,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 12:06:50,322 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:06:51,030 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:51,031 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:06:51,736 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:51,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690926817] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:06:51,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:06:51,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 28 [2024-12-02 12:06:51,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441587413] [2024-12-02 12:06:51,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:06:51,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 12:06:51,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:51,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 12:06:51,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=653, Unknown=0, NotChecked=0, Total=756 [2024-12-02 12:06:51,737 INFO L87 Difference]: Start difference. First operand 29575 states and 37981 transitions. Second operand has 28 states, 28 states have (on average 8.285714285714286) internal successors, (232), 28 states have internal predecessors, (232), 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) [2024-12-02 12:06:53,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:53,648 INFO L93 Difference]: Finished difference Result 37293 states and 48032 transitions. [2024-12-02 12:06:53,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 12:06:53,649 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 8.285714285714286) internal successors, (232), 28 states have internal predecessors, (232), 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 92 [2024-12-02 12:06:53,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:53,674 INFO L225 Difference]: With dead ends: 37293 [2024-12-02 12:06:53,674 INFO L226 Difference]: Without dead ends: 27307 [2024-12-02 12:06:53,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=343, Invalid=1297, Unknown=0, NotChecked=0, Total=1640 [2024-12-02 12:06:53,683 INFO L435 NwaCegarLoop]: 1519 mSDtfsCounter, 8297 mSDsluCounter, 14910 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8297 SdHoareTripleChecker+Valid, 16429 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:53,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8297 Valid, 16429 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:06:53,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27307 states. [2024-12-02 12:06:54,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27307 to 27303. [2024-12-02 12:06:54,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27303 states, 27301 states have (on average 1.284531702135453) internal successors, (35069), 27302 states have internal predecessors, (35069), 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) [2024-12-02 12:06:54,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27303 states to 27303 states and 35069 transitions. [2024-12-02 12:06:54,513 INFO L78 Accepts]: Start accepts. Automaton has 27303 states and 35069 transitions. Word has length 92 [2024-12-02 12:06:54,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:54,513 INFO L471 AbstractCegarLoop]: Abstraction has 27303 states and 35069 transitions. [2024-12-02 12:06:54,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 8.285714285714286) internal successors, (232), 28 states have internal predecessors, (232), 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) [2024-12-02 12:06:54,514 INFO L276 IsEmpty]: Start isEmpty. Operand 27303 states and 35069 transitions. [2024-12-02 12:06:54,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 12:06:54,515 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:54,515 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] [2024-12-02 12:06:54,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 12:06:54,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-12-02 12:06:54,716 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:54,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:54,716 INFO L85 PathProgramCache]: Analyzing trace with hash -54854566, now seen corresponding path program 1 times [2024-12-02 12:06:54,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:54,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369893810] [2024-12-02 12:06:54,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:54,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:54,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:55,400 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:55,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:55,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369893810] [2024-12-02 12:06:55,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369893810] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:06:55,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363262261] [2024-12-02 12:06:55,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:55,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:06:55,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:06:55,402 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:06:55,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 12:06:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:55,574 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-12-02 12:06:55,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:06:58,812 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:06:58,812 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:07:02,973 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:07:02,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363262261] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:07:02,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:07:02,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 26, 20] total 54 [2024-12-02 12:07:02,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809684127] [2024-12-02 12:07:02,974 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:07:02,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-12-02 12:07:02,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:07:02,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-12-02 12:07:02,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=2495, Unknown=0, NotChecked=0, Total=2862 [2024-12-02 12:07:02,975 INFO L87 Difference]: Start difference. First operand 27303 states and 35069 transitions. Second operand has 54 states, 54 states have (on average 4.814814814814815) internal successors, (260), 54 states have internal predecessors, (260), 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) [2024-12-02 12:07:29,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:07:29,180 INFO L93 Difference]: Finished difference Result 49693 states and 63632 transitions. [2024-12-02 12:07:29,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2024-12-02 12:07:29,181 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 4.814814814814815) internal successors, (260), 54 states have internal predecessors, (260), 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 92 [2024-12-02 12:07:29,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:07:29,209 INFO L225 Difference]: With dead ends: 49693 [2024-12-02 12:07:29,209 INFO L226 Difference]: Without dead ends: 39579 [2024-12-02 12:07:29,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8516 ImplicationChecksByTransitivity, 23.7s TimeCoverageRelationStatistics Valid=5154, Invalid=22568, Unknown=0, NotChecked=0, Total=27722 [2024-12-02 12:07:29,220 INFO L435 NwaCegarLoop]: 1590 mSDtfsCounter, 21797 mSDsluCounter, 24300 mSDsCounter, 0 mSdLazyCounter, 3810 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21797 SdHoareTripleChecker+Valid, 25890 SdHoareTripleChecker+Invalid, 3911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 3810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:07:29,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21797 Valid, 25890 Invalid, 3911 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [101 Valid, 3810 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-12-02 12:07:29,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39579 states. [2024-12-02 12:07:30,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39579 to 24423. [2024-12-02 12:07:30,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24423 states, 24421 states have (on average 1.2836083698456247) internal successors, (31347), 24422 states have internal predecessors, (31347), 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) [2024-12-02 12:07:30,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24423 states to 24423 states and 31347 transitions. [2024-12-02 12:07:30,197 INFO L78 Accepts]: Start accepts. Automaton has 24423 states and 31347 transitions. Word has length 92 [2024-12-02 12:07:30,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:07:30,197 INFO L471 AbstractCegarLoop]: Abstraction has 24423 states and 31347 transitions. [2024-12-02 12:07:30,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 4.814814814814815) internal successors, (260), 54 states have internal predecessors, (260), 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) [2024-12-02 12:07:30,197 INFO L276 IsEmpty]: Start isEmpty. Operand 24423 states and 31347 transitions. [2024-12-02 12:07:30,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 12:07:30,198 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:07:30,199 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:07:30,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 12:07:30,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-12-02 12:07:30,399 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:07:30,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:07:30,400 INFO L85 PathProgramCache]: Analyzing trace with hash 222504259, now seen corresponding path program 1 times [2024-12-02 12:07:30,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:07:30,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268554406] [2024-12-02 12:07:30,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:30,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:07:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:07:30,495 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 12:07:30,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:07:30,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268554406] [2024-12-02 12:07:30,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268554406] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:07:30,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984562317] [2024-12-02 12:07:30,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:30,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:07:30,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:07:30,497 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:07:30,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 12:07:30,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:07:30,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 12:07:30,644 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:07:30,767 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 12:07:30,767 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:07:31,051 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 12:07:31,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984562317] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:07:31,052 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:07:31,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 4] total 9 [2024-12-02 12:07:31,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289417007] [2024-12-02 12:07:31,052 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:07:31,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:07:31,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:07:31,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:07:31,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:07:31,053 INFO L87 Difference]: Start difference. First operand 24423 states and 31347 transitions. Second operand has 9 states, 9 states have (on average 25.444444444444443) internal successors, (229), 9 states have internal predecessors, (229), 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) [2024-12-02 12:07:33,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:07:33,333 INFO L93 Difference]: Finished difference Result 61091 states and 76520 transitions. [2024-12-02 12:07:33,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:07:33,333 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 25.444444444444443) internal successors, (229), 9 states have internal predecessors, (229), 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 93 [2024-12-02 12:07:33,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:07:33,358 INFO L225 Difference]: With dead ends: 61091 [2024-12-02 12:07:33,358 INFO L226 Difference]: Without dead ends: 38977 [2024-12-02 12:07:33,366 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=48, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:07:33,366 INFO L435 NwaCegarLoop]: 1539 mSDtfsCounter, 4444 mSDsluCounter, 3306 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4444 SdHoareTripleChecker+Valid, 4845 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:07:33,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4444 Valid, 4845 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:07:33,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38977 states. [2024-12-02 12:07:34,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38977 to 37081. [2024-12-02 12:07:34,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37081 states, 37079 states have (on average 1.2304269262925105) internal successors, (45623), 37080 states have internal predecessors, (45623), 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) [2024-12-02 12:07:34,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37081 states to 37081 states and 45623 transitions. [2024-12-02 12:07:34,896 INFO L78 Accepts]: Start accepts. Automaton has 37081 states and 45623 transitions. Word has length 93 [2024-12-02 12:07:34,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:07:34,896 INFO L471 AbstractCegarLoop]: Abstraction has 37081 states and 45623 transitions. [2024-12-02 12:07:34,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 25.444444444444443) internal successors, (229), 9 states have internal predecessors, (229), 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) [2024-12-02 12:07:34,896 INFO L276 IsEmpty]: Start isEmpty. Operand 37081 states and 45623 transitions. [2024-12-02 12:07:34,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 12:07:34,898 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:07:34,898 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:07:34,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 12:07:35,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-12-02 12:07:35,099 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:07:35,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:07:35,099 INFO L85 PathProgramCache]: Analyzing trace with hash 309781839, now seen corresponding path program 1 times [2024-12-02 12:07:35,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:07:35,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721659158] [2024-12-02 12:07:35,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:35,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:07:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:07:37,954 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:07:37,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:07:37,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721659158] [2024-12-02 12:07:37,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721659158] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:07:37,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825941619] [2024-12-02 12:07:37,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:37,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:07:37,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:07:37,956 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:07:37,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 12:07:38,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:07:38,071 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-12-02 12:07:38,073 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:07:46,231 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:07:46,231 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:07:58,582 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:07:58,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825941619] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:07:58,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:07:58,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 35, 34] total 96 [2024-12-02 12:07:58,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292010783] [2024-12-02 12:07:58,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:07:58,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-12-02 12:07:58,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:07:58,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-12-02 12:07:58,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=841, Invalid=8279, Unknown=0, NotChecked=0, Total=9120 [2024-12-02 12:07:58,585 INFO L87 Difference]: Start difference. First operand 37081 states and 45623 transitions. Second operand has 96 states, 96 states have (on average 2.6979166666666665) internal successors, (259), 96 states have internal predecessors, (259), 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) [2024-12-02 12:13:47,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:13:47,650 INFO L93 Difference]: Finished difference Result 135035 states and 165759 transitions. [2024-12-02 12:13:47,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 594 states. [2024-12-02 12:13:47,650 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 2.6979166666666665) internal successors, (259), 96 states have internal predecessors, (259), 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 93 [2024-12-02 12:13:47,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:13:47,779 INFO L225 Difference]: With dead ends: 135035 [2024-12-02 12:13:47,779 INFO L226 Difference]: Without dead ends: 133195 [2024-12-02 12:13:47,825 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 800 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 679 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207612 ImplicationChecksByTransitivity, 326.4s TimeCoverageRelationStatistics Valid=46101, Invalid=416979, Unknown=0, NotChecked=0, Total=463080 [2024-12-02 12:13:47,825 INFO L435 NwaCegarLoop]: 1767 mSDtfsCounter, 39764 mSDsluCounter, 37840 mSDsCounter, 0 mSdLazyCounter, 19739 mSolverCounterSat, 549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39764 SdHoareTripleChecker+Valid, 39607 SdHoareTripleChecker+Invalid, 20288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 549 IncrementalHoareTripleChecker+Valid, 19739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:13:47,826 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39764 Valid, 39607 Invalid, 20288 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [549 Valid, 19739 Invalid, 0 Unknown, 0 Unchecked, 23.4s Time] [2024-12-02 12:13:47,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133195 states. [2024-12-02 12:13:50,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133195 to 41314. [2024-12-02 12:13:50,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41314 states, 41312 states have (on average 1.2324990317583269) internal successors, (50917), 41313 states have internal predecessors, (50917), 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) [2024-12-02 12:13:50,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41314 states to 41314 states and 50917 transitions. [2024-12-02 12:13:50,751 INFO L78 Accepts]: Start accepts. Automaton has 41314 states and 50917 transitions. Word has length 93 [2024-12-02 12:13:50,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:13:50,751 INFO L471 AbstractCegarLoop]: Abstraction has 41314 states and 50917 transitions. [2024-12-02 12:13:50,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 2.6979166666666665) internal successors, (259), 96 states have internal predecessors, (259), 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) [2024-12-02 12:13:50,751 INFO L276 IsEmpty]: Start isEmpty. Operand 41314 states and 50917 transitions. [2024-12-02 12:13:50,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 12:13:50,752 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:13:50,752 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:13:50,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-12-02 12:13:50,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:13:50,953 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:13:50,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:13:50,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1576882104, now seen corresponding path program 1 times [2024-12-02 12:13:50,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:13:50,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400612085] [2024-12-02 12:13:50,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:13:50,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:13:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:13:51,594 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:13:51,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:13:51,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400612085] [2024-12-02 12:13:51,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400612085] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:13:51,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398122614] [2024-12-02 12:13:51,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:13:51,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:13:51,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:13:51,596 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:13:51,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 12:13:51,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:13:51,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-12-02 12:13:51,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:13:57,421 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:13:57,421 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:14:03,603 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:14:03,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398122614] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:14:03,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:14:03,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 33, 28] total 67 [2024-12-02 12:14:03,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005878678] [2024-12-02 12:14:03,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:14:03,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-12-02 12:14:03,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:14:03,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-12-02 12:14:03,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=602, Invalid=3820, Unknown=0, NotChecked=0, Total=4422 [2024-12-02 12:14:03,605 INFO L87 Difference]: Start difference. First operand 41314 states and 50917 transitions. Second operand has 67 states, 67 states have (on average 3.6417910447761193) internal successors, (244), 67 states have internal predecessors, (244), 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) [2024-12-02 12:15:42,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:15:42,434 INFO L93 Difference]: Finished difference Result 130673 states and 160320 transitions. [2024-12-02 12:15:42,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 316 states. [2024-12-02 12:15:42,434 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 3.6417910447761193) internal successors, (244), 67 states have internal predecessors, (244), 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 94 [2024-12-02 12:15:42,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:15:42,538 INFO L225 Difference]: With dead ends: 130673 [2024-12-02 12:15:42,538 INFO L226 Difference]: Without dead ends: 113350 [2024-12-02 12:15:42,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 378 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65364 ImplicationChecksByTransitivity, 84.7s TimeCoverageRelationStatistics Valid=22208, Invalid=121812, Unknown=0, NotChecked=0, Total=144020 [2024-12-02 12:15:42,567 INFO L435 NwaCegarLoop]: 1610 mSDtfsCounter, 30920 mSDsluCounter, 30265 mSDsCounter, 0 mSdLazyCounter, 8905 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30920 SdHoareTripleChecker+Valid, 31875 SdHoareTripleChecker+Invalid, 9070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 8905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:15:42,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30920 Valid, 31875 Invalid, 9070 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [165 Valid, 8905 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2024-12-02 12:15:42,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113350 states. [2024-12-02 12:15:44,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113350 to 35684. [2024-12-02 12:15:44,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35684 states, 35682 states have (on average 1.2390000560506698) internal successors, (44210), 35683 states have internal predecessors, (44210), 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) [2024-12-02 12:15:44,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35684 states to 35684 states and 44210 transitions. [2024-12-02 12:15:44,979 INFO L78 Accepts]: Start accepts. Automaton has 35684 states and 44210 transitions. Word has length 94 [2024-12-02 12:15:44,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:15:44,979 INFO L471 AbstractCegarLoop]: Abstraction has 35684 states and 44210 transitions. [2024-12-02 12:15:44,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 3.6417910447761193) internal successors, (244), 67 states have internal predecessors, (244), 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) [2024-12-02 12:15:44,980 INFO L276 IsEmpty]: Start isEmpty. Operand 35684 states and 44210 transitions. [2024-12-02 12:15:44,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 12:15:44,982 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:15:44,982 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 12:15:44,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-12-02 12:15:45,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:15:45,183 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:15:45,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:15:45,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1996428116, now seen corresponding path program 1 times [2024-12-02 12:15:45,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:15:45,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040561962] [2024-12-02 12:15:45,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:15:45,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:15:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:15:45,314 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:15:45,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:15:45,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040561962] [2024-12-02 12:15:45,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040561962] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:15:45,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:15:45,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:15:45,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626997837] [2024-12-02 12:15:45,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:15:45,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:15:45,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:15:45,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:15:45,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:15:45,316 INFO L87 Difference]: Start difference. First operand 35684 states and 44210 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 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) [2024-12-02 12:15:50,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:15:50,766 INFO L93 Difference]: Finished difference Result 39478 states and 50315 transitions. [2024-12-02 12:15:50,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:15:50,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 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 131 [2024-12-02 12:15:50,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:15:50,789 INFO L225 Difference]: With dead ends: 39478 [2024-12-02 12:15:50,790 INFO L226 Difference]: Without dead ends: 37186 [2024-12-02 12:15:50,795 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:15:50,795 INFO L435 NwaCegarLoop]: 798 mSDtfsCounter, 807 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 3107 mSolverCounterSat, 729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 3836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 729 IncrementalHoareTripleChecker+Valid, 3107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:15:50,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 917 Invalid, 3836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [729 Valid, 3107 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-12-02 12:15:50,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37186 states. [2024-12-02 12:15:53,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37186 to 37186. [2024-12-02 12:15:53,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37186 states, 37184 states have (on average 1.2315780981067126) internal successors, (45795), 37185 states have internal predecessors, (45795), 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) [2024-12-02 12:15:53,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37186 states to 37186 states and 45795 transitions. [2024-12-02 12:15:53,289 INFO L78 Accepts]: Start accepts. Automaton has 37186 states and 45795 transitions. Word has length 131 [2024-12-02 12:15:53,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:15:53,289 INFO L471 AbstractCegarLoop]: Abstraction has 37186 states and 45795 transitions. [2024-12-02 12:15:53,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 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) [2024-12-02 12:15:53,289 INFO L276 IsEmpty]: Start isEmpty. Operand 37186 states and 45795 transitions. [2024-12-02 12:15:53,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 12:15:53,294 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:15:53,294 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-12-02 12:15:53,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 12:15:53,294 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:15:53,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:15:53,295 INFO L85 PathProgramCache]: Analyzing trace with hash 368039186, now seen corresponding path program 1 times [2024-12-02 12:15:53,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:15:53,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862424028] [2024-12-02 12:15:53,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:15:53,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:15:53,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:15:53,805 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 48 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:15:53,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:15:53,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862424028] [2024-12-02 12:15:53,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862424028] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:15:53,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695683108] [2024-12-02 12:15:53,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:15:53,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:15:53,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:15:53,807 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:15:53,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 12:15:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:15:53,945 INFO L256 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 12:15:53,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:15:54,634 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 43 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:15:54,634 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:15:56,600 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 40 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:15:56,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695683108] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:15:56,600 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:15:56,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 31 [2024-12-02 12:15:56,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298590423] [2024-12-02 12:15:56,600 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:15:56,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-12-02 12:15:56,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:15:56,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-12-02 12:15:56,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=890, Unknown=0, NotChecked=0, Total=992 [2024-12-02 12:15:56,601 INFO L87 Difference]: Start difference. First operand 37186 states and 45795 transitions. Second operand has 32 states, 32 states have (on average 12.375) internal successors, (396), 31 states have internal predecessors, (396), 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) [2024-12-02 12:16:01,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:16:01,890 INFO L93 Difference]: Finished difference Result 69906 states and 86351 transitions. [2024-12-02 12:16:01,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-12-02 12:16:01,891 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 12.375) internal successors, (396), 31 states have internal predecessors, (396), 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 146 [2024-12-02 12:16:01,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:16:01,923 INFO L225 Difference]: With dead ends: 69906 [2024-12-02 12:16:01,923 INFO L226 Difference]: Without dead ends: 44050 [2024-12-02 12:16:01,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1278 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1274, Invalid=5206, Unknown=0, NotChecked=0, Total=6480 [2024-12-02 12:16:01,939 INFO L435 NwaCegarLoop]: 1497 mSDtfsCounter, 21398 mSDsluCounter, 16915 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21398 SdHoareTripleChecker+Valid, 18412 SdHoareTripleChecker+Invalid, 1566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:16:01,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21398 Valid, 18412 Invalid, 1566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1527 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 12:16:01,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44050 states. [2024-12-02 12:16:04,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44050 to 37186. [2024-12-02 12:16:04,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37186 states, 37184 states have (on average 1.2173784423407918) internal successors, (45267), 37185 states have internal predecessors, (45267), 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) [2024-12-02 12:16:04,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37186 states to 37186 states and 45267 transitions. [2024-12-02 12:16:04,190 INFO L78 Accepts]: Start accepts. Automaton has 37186 states and 45267 transitions. Word has length 146 [2024-12-02 12:16:04,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:16:04,190 INFO L471 AbstractCegarLoop]: Abstraction has 37186 states and 45267 transitions. [2024-12-02 12:16:04,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 12.375) internal successors, (396), 31 states have internal predecessors, (396), 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) [2024-12-02 12:16:04,190 INFO L276 IsEmpty]: Start isEmpty. Operand 37186 states and 45267 transitions. [2024-12-02 12:16:04,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 12:16:04,195 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:16:04,195 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:16:04,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 12:16:04,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:16:04,395 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:16:04,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:16:04,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1623666308, now seen corresponding path program 1 times [2024-12-02 12:16:04,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:16:04,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906615753] [2024-12-02 12:16:04,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:16:04,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:16:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:16:05,165 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 41 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:16:05,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:16:05,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906615753] [2024-12-02 12:16:05,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906615753] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:16:05,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419861672] [2024-12-02 12:16:05,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:16:05,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:16:05,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:16:05,167 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:16:05,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 12:16:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:16:05,321 INFO L256 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 12:16:05,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:16:06,406 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 23 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:16:06,406 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:16:08,630 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 16 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:16:08,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419861672] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:16:08,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:16:08,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11, 11] total 39 [2024-12-02 12:16:08,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143142698] [2024-12-02 12:16:08,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:16:08,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-12-02 12:16:08,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:16:08,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-12-02 12:16:08,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1425, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 12:16:08,632 INFO L87 Difference]: Start difference. First operand 37186 states and 45267 transitions. Second operand has 40 states, 40 states have (on average 10.6) internal successors, (424), 39 states have internal predecessors, (424), 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) [2024-12-02 12:16:20,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:16:20,096 INFO L93 Difference]: Finished difference Result 71797 states and 87051 transitions. [2024-12-02 12:16:20,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2024-12-02 12:16:20,096 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 10.6) internal successors, (424), 39 states have internal predecessors, (424), 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 146 [2024-12-02 12:16:20,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:16:20,137 INFO L225 Difference]: With dead ends: 71797 [2024-12-02 12:16:20,137 INFO L226 Difference]: Without dead ends: 52673 [2024-12-02 12:16:20,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4219 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=2487, Invalid=13013, Unknown=0, NotChecked=0, Total=15500 [2024-12-02 12:16:20,151 INFO L435 NwaCegarLoop]: 1571 mSDtfsCounter, 20617 mSDsluCounter, 25299 mSDsCounter, 0 mSdLazyCounter, 3923 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20617 SdHoareTripleChecker+Valid, 26870 SdHoareTripleChecker+Invalid, 3988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:16:20,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20617 Valid, 26870 Invalid, 3988 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 3923 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 12:16:20,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52673 states. [2024-12-02 12:16:22,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52673 to 42737. [2024-12-02 12:16:22,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42737 states, 42735 states have (on average 1.2075816075816075) internal successors, (51606), 42736 states have internal predecessors, (51606), 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) [2024-12-02 12:16:23,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42737 states to 42737 states and 51606 transitions. [2024-12-02 12:16:23,025 INFO L78 Accepts]: Start accepts. Automaton has 42737 states and 51606 transitions. Word has length 146 [2024-12-02 12:16:23,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:16:23,025 INFO L471 AbstractCegarLoop]: Abstraction has 42737 states and 51606 transitions. [2024-12-02 12:16:23,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 10.6) internal successors, (424), 39 states have internal predecessors, (424), 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) [2024-12-02 12:16:23,025 INFO L276 IsEmpty]: Start isEmpty. Operand 42737 states and 51606 transitions. [2024-12-02 12:16:23,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 12:16:23,029 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:16:23,029 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:16:23,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 12:16:23,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:16:23,230 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:16:23,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:16:23,230 INFO L85 PathProgramCache]: Analyzing trace with hash -946023504, now seen corresponding path program 1 times [2024-12-02 12:16:23,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:16:23,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778397547] [2024-12-02 12:16:23,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:16:23,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:16:23,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:16:24,010 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 52 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:16:24,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:16:24,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778397547] [2024-12-02 12:16:24,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778397547] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:16:24,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189998626] [2024-12-02 12:16:24,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:16:24,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:16:24,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:16:24,012 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:16:24,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 12:16:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:16:24,174 INFO L256 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 12:16:24,175 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:16:24,968 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 30 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:16:24,968 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:16:27,205 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 25 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:16:27,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189998626] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:16:27,206 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:16:27,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 35 [2024-12-02 12:16:27,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573156964] [2024-12-02 12:16:27,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:16:27,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-12-02 12:16:27,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:16:27,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-12-02 12:16:27,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1140, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 12:16:27,207 INFO L87 Difference]: Start difference. First operand 42737 states and 51606 transitions. Second operand has 36 states, 36 states have (on average 11.38888888888889) internal successors, (410), 35 states have internal predecessors, (410), 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) [2024-12-02 12:16:43,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:16:43,102 INFO L93 Difference]: Finished difference Result 120910 states and 145490 transitions. [2024-12-02 12:16:43,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2024-12-02 12:16:43,103 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.38888888888889) internal successors, (410), 35 states have internal predecessors, (410), 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 146 [2024-12-02 12:16:43,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:16:43,184 INFO L225 Difference]: With dead ends: 120910 [2024-12-02 12:16:43,184 INFO L226 Difference]: Without dead ends: 90620 [2024-12-02 12:16:43,206 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8644 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=4089, Invalid=22971, Unknown=0, NotChecked=0, Total=27060 [2024-12-02 12:16:43,206 INFO L435 NwaCegarLoop]: 1527 mSDtfsCounter, 29484 mSDsluCounter, 18019 mSDsCounter, 0 mSdLazyCounter, 3035 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29484 SdHoareTripleChecker+Valid, 19546 SdHoareTripleChecker+Invalid, 3115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 3035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 12:16:43,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29484 Valid, 19546 Invalid, 3115 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [80 Valid, 3035 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 12:16:43,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90620 states. [2024-12-02 12:16:48,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90620 to 65470. [2024-12-02 12:16:48,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65470 states, 65468 states have (on average 1.1967220626871142) internal successors, (78347), 65469 states have internal predecessors, (78347), 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) [2024-12-02 12:16:48,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65470 states to 65470 states and 78347 transitions. [2024-12-02 12:16:48,242 INFO L78 Accepts]: Start accepts. Automaton has 65470 states and 78347 transitions. Word has length 146 [2024-12-02 12:16:48,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:16:48,243 INFO L471 AbstractCegarLoop]: Abstraction has 65470 states and 78347 transitions. [2024-12-02 12:16:48,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.38888888888889) internal successors, (410), 35 states have internal predecessors, (410), 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) [2024-12-02 12:16:48,243 INFO L276 IsEmpty]: Start isEmpty. Operand 65470 states and 78347 transitions. [2024-12-02 12:16:48,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 12:16:48,248 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:16:48,248 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:16:48,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 12:16:48,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:16:48,449 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:16:48,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:16:48,449 INFO L85 PathProgramCache]: Analyzing trace with hash -4583504, now seen corresponding path program 1 times [2024-12-02 12:16:48,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:16:48,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128933556] [2024-12-02 12:16:48,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:16:48,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:16:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:16:50,740 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 16 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:16:50,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:16:50,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128933556] [2024-12-02 12:16:50,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128933556] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:16:50,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225009124] [2024-12-02 12:16:50,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:16:50,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:16:50,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:16:50,742 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:16:50,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ed6ec6-c139-4ddf-ad76-e750c3a61656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 12:16:50,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:16:50,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 109 conjuncts are in the unsatisfiable core [2024-12-02 12:16:50,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:17:01,713 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 35 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:17:01,713 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:17:26,392 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 16 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:17:26,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225009124] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:17:26,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:17:26,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 47, 44] total 120 [2024-12-02 12:17:26,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254549899] [2024-12-02 12:17:26,393 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:17:26,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 120 states [2024-12-02 12:17:26,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:17:26,394 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2024-12-02 12:17:26,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1688, Invalid=12592, Unknown=0, NotChecked=0, Total=14280 [2024-12-02 12:17:26,394 INFO L87 Difference]: Start difference. First operand 65470 states and 78347 transitions. Second operand has 120 states, 120 states have (on average 3.575) internal successors, (429), 120 states have internal predecessors, (429), 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)