./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label09.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_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/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_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/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_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/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 4b8e4f57289bafd3f29582b11c1ea3d32af0aa4d03b738aef04f29eb11d15fcf --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:08:41,364 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:08:41,414 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 13:08:41,418 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:08:41,418 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:08:41,438 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:08:41,438 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:08:41,439 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:08:41,439 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:08:41,439 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:08:41,439 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:08:41,439 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:08:41,439 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:08:41,439 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:08:41,440 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:08:41,440 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:08:41,440 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:08:41,440 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:08:41,440 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:08:41,440 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:08:41,440 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:08:41,440 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:08:41,440 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:08:41,440 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:08:41,440 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:08:41,441 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:08:41,441 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:08:41,441 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:08:41,441 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:08:41,441 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:08:41,441 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:08:41,441 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:08:41,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:08:41,441 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:08:41,441 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:08:41,441 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:08:41,441 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:08:41,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:08:41,442 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:08:41,442 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:08:41,442 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:08:41,442 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:08:41,442 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:08:41,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:08:41,442 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:08:41,442 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:08:41,442 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:08:41,442 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:08:41,442 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_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/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 -> 4b8e4f57289bafd3f29582b11c1ea3d32af0aa4d03b738aef04f29eb11d15fcf [2024-12-02 13:08:41,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:08:41,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:08:41,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:08:41,665 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:08:41,665 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:08:41,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label09.c [2024-12-02 13:08:44,257 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/data/5233226e1/c2134fc9318d4beaa62ce81d5f130a97/FLAGbb4ed0f9b [2024-12-02 13:08:44,642 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:08:44,642 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label09.c [2024-12-02 13:08:44,663 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/data/5233226e1/c2134fc9318d4beaa62ce81d5f130a97/FLAGbb4ed0f9b [2024-12-02 13:08:44,841 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/data/5233226e1/c2134fc9318d4beaa62ce81d5f130a97 [2024-12-02 13:08:44,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:08:44,844 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:08:44,845 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:08:44,845 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:08:44,848 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:08:44,848 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:08:44" (1/1) ... [2024-12-02 13:08:44,849 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48358a4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:44, skipping insertion in model container [2024-12-02 13:08:44,849 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:08:44" (1/1) ... [2024-12-02 13:08:44,937 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:08:45,268 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_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label09.c[26888,26901] [2024-12-02 13:08:45,317 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_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label09.c[34636,34649] [2024-12-02 13:08:45,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:08:45,819 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:08:45,884 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_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label09.c[26888,26901] [2024-12-02 13:08:45,897 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_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label09.c[34636,34649] [2024-12-02 13:08:46,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:08:46,412 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:08:46,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:46 WrapperNode [2024-12-02 13:08:46,413 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:08:46,414 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:08:46,414 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:08:46,414 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:08:46,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:46" (1/1) ... [2024-12-02 13:08:46,459 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:46" (1/1) ... [2024-12-02 13:08:46,763 INFO L138 Inliner]: procedures = 40, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5289 [2024-12-02 13:08:46,764 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:08:46,764 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:08:46,764 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:08:46,764 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:08:46,774 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:46" (1/1) ... [2024-12-02 13:08:46,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:46" (1/1) ... [2024-12-02 13:08:46,814 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:46" (1/1) ... [2024-12-02 13:08:46,961 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 13:08:46,961 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:46" (1/1) ... [2024-12-02 13:08:46,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:46" (1/1) ... [2024-12-02 13:08:47,098 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:46" (1/1) ... [2024-12-02 13:08:47,115 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:46" (1/1) ... [2024-12-02 13:08:47,168 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:46" (1/1) ... [2024-12-02 13:08:47,192 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:46" (1/1) ... [2024-12-02 13:08:47,211 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:46" (1/1) ... [2024-12-02 13:08:47,299 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:08:47,300 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:08:47,300 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:08:47,300 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:08:47,301 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:46" (1/1) ... [2024-12-02 13:08:47,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:08:47,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:08:47,330 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:08:47,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:08:47,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:08:47,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:08:47,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:08:47,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:08:47,490 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:08:47,492 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:08:51,696 INFO L? ?]: Removed 759 outVars from TransFormulas that were not future-live. [2024-12-02 13:08:51,697 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:08:51,725 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:08:51,725 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 13:08:51,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:08:51 BoogieIcfgContainer [2024-12-02 13:08:51,726 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:08:51,728 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:08:51,728 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:08:51,732 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:08:51,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:08:44" (1/3) ... [2024-12-02 13:08:51,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@425335c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:08:51, skipping insertion in model container [2024-12-02 13:08:51,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:46" (2/3) ... [2024-12-02 13:08:51,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@425335c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:08:51, skipping insertion in model container [2024-12-02 13:08:51,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:08:51" (3/3) ... [2024-12-02 13:08:51,734 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label09.c [2024-12-02 13:08:51,748 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:08:51,751 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label09.c that has 1 procedures, 949 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-02 13:08:51,836 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:08:51,847 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;@414c0415, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:08:51,848 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 13:08:51,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 949 states, 946 states have (on average 1.9027484143763214) internal successors, (1800), 948 states have internal predecessors, (1800), 0 states have call successors, (0), 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 13:08:51,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-02 13:08:51,861 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:51,861 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] [2024-12-02 13:08:51,862 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:51,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:51,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1967767115, now seen corresponding path program 1 times [2024-12-02 13:08:51,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:51,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98180151] [2024-12-02 13:08:51,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:51,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:52,124 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 13:08:52,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:52,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98180151] [2024-12-02 13:08:52,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98180151] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:52,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:52,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:08:52,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48624680] [2024-12-02 13:08:52,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:52,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 13:08:52,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:52,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 13:08:52,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:08:52,146 INFO L87 Difference]: Start difference. First operand has 949 states, 946 states have (on average 1.9027484143763214) internal successors, (1800), 948 states have internal predecessors, (1800), 0 states have call successors, (0), 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 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 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 13:08:52,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:52,212 INFO L93 Difference]: Finished difference Result 1829 states and 3468 transitions. [2024-12-02 13:08:52,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 13:08:52,213 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2024-12-02 13:08:52,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:52,226 INFO L225 Difference]: With dead ends: 1829 [2024-12-02 13:08:52,226 INFO L226 Difference]: Without dead ends: 883 [2024-12-02 13:08:52,231 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 13:08:52,233 INFO L435 NwaCegarLoop]: 1731 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, 1731 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 13:08:52,234 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:08:52,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-12-02 13:08:52,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2024-12-02 13:08:52,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 881 states have (on average 1.8921679909194098) internal successors, (1667), 882 states have internal predecessors, (1667), 0 states have call successors, (0), 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 13:08:52,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1667 transitions. [2024-12-02 13:08:52,293 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1667 transitions. Word has length 30 [2024-12-02 13:08:52,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:52,293 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1667 transitions. [2024-12-02 13:08:52,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 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 13:08:52,293 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1667 transitions. [2024-12-02 13:08:52,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-02 13:08:52,295 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:52,295 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] [2024-12-02 13:08:52,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 13:08:52,295 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:52,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:52,296 INFO L85 PathProgramCache]: Analyzing trace with hash -2101780621, now seen corresponding path program 1 times [2024-12-02 13:08:52,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:52,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441184728] [2024-12-02 13:08:52,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:52,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:52,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:52,522 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 13:08:52,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:52,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441184728] [2024-12-02 13:08:52,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441184728] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:52,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:52,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:08:52,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182063113] [2024-12-02 13:08:52,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:52,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:08:52,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:52,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:08:52,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:08:52,525 INFO L87 Difference]: Start difference. First operand 883 states and 1667 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 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 13:08:52,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:52,662 INFO L93 Difference]: Finished difference Result 949 states and 1771 transitions. [2024-12-02 13:08:52,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:08:52,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2024-12-02 13:08:52,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:52,665 INFO L225 Difference]: With dead ends: 949 [2024-12-02 13:08:52,665 INFO L226 Difference]: Without dead ends: 883 [2024-12-02 13:08:52,666 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 13:08:52,666 INFO L435 NwaCegarLoop]: 1665 mSDtfsCounter, 0 mSDsluCounter, 4929 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6594 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:52,667 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6594 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:08:52,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-12-02 13:08:52,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2024-12-02 13:08:52,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 881 states have (on average 1.8229284903518728) internal successors, (1606), 882 states have internal predecessors, (1606), 0 states have call successors, (0), 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 13:08:52,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1606 transitions. [2024-12-02 13:08:52,684 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1606 transitions. Word has length 30 [2024-12-02 13:08:52,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:52,684 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1606 transitions. [2024-12-02 13:08:52,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 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 13:08:52,685 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1606 transitions. [2024-12-02 13:08:52,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 13:08:52,686 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:52,686 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:52,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:08:52,686 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:52,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:52,687 INFO L85 PathProgramCache]: Analyzing trace with hash -25756829, now seen corresponding path program 1 times [2024-12-02 13:08:52,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:52,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220848181] [2024-12-02 13:08:52,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:52,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:52,883 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 13:08:52,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:52,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220848181] [2024-12-02 13:08:52,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220848181] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:52,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:52,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:08:52,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238541724] [2024-12-02 13:08:52,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:52,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:08:52,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:52,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:08:52,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:08:52,884 INFO L87 Difference]: Start difference. First operand 883 states and 1606 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 13:08:58,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:58,672 INFO L93 Difference]: Finished difference Result 3138 states and 5915 transitions. [2024-12-02 13:08:58,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:08:58,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-12-02 13:08:58,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:58,679 INFO L225 Difference]: With dead ends: 3138 [2024-12-02 13:08:58,679 INFO L226 Difference]: Without dead ends: 2385 [2024-12-02 13:08:58,680 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 13:08:58,681 INFO L435 NwaCegarLoop]: 860 mSDtfsCounter, 2519 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5154 mSolverCounterSat, 1245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2519 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 6399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1245 IncrementalHoareTripleChecker+Valid, 5154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:58,681 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2519 Valid, 878 Invalid, 6399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1245 Valid, 5154 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-12-02 13:08:58,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2385 states. [2024-12-02 13:08:58,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2385 to 2385. [2024-12-02 13:08:58,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2385 states, 2383 states have (on average 1.503147293327738) internal successors, (3582), 2384 states have internal predecessors, (3582), 0 states have call successors, (0), 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 13:08:58,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 3582 transitions. [2024-12-02 13:08:58,720 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 3582 transitions. Word has length 67 [2024-12-02 13:08:58,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:58,720 INFO L471 AbstractCegarLoop]: Abstraction has 2385 states and 3582 transitions. [2024-12-02 13:08:58,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 13:08:58,720 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 3582 transitions. [2024-12-02 13:08:58,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 13:08:58,722 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:58,722 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, 1, 1, 1, 1, 1, 1, 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 13:08:58,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:08:58,723 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:58,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:58,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1651582301, now seen corresponding path program 1 times [2024-12-02 13:08:58,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:58,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706505453] [2024-12-02 13:08:58,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:58,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:58,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:58,985 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 13:08:58,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:58,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706505453] [2024-12-02 13:08:58,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706505453] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:58,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:58,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 13:08:58,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178441017] [2024-12-02 13:08:58,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:58,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:08:58,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:58,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:08:58,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:08:58,987 INFO L87 Difference]: Start difference. First operand 2385 states and 3582 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 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 13:08:59,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:59,435 INFO L93 Difference]: Finished difference Result 3377 states and 5182 transitions. [2024-12-02 13:08:59,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 13:08:59,435 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 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 13:08:59,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:59,447 INFO L225 Difference]: With dead ends: 3377 [2024-12-02 13:08:59,447 INFO L226 Difference]: Without dead ends: 3315 [2024-12-02 13:08:59,449 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-12-02 13:08:59,449 INFO L435 NwaCegarLoop]: 1600 mSDtfsCounter, 13578 mSDsluCounter, 3975 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13578 SdHoareTripleChecker+Valid, 5575 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:59,450 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13578 Valid, 5575 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:08:59,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3315 states. [2024-12-02 13:08:59,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3315 to 2445. [2024-12-02 13:08:59,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2445 states, 2443 states have (on average 1.5059353254195662) internal successors, (3679), 2444 states have internal predecessors, (3679), 0 states have call successors, (0), 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 13:08:59,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2445 states to 2445 states and 3679 transitions. [2024-12-02 13:08:59,512 INFO L78 Accepts]: Start accepts. Automaton has 2445 states and 3679 transitions. Word has length 90 [2024-12-02 13:08:59,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:59,512 INFO L471 AbstractCegarLoop]: Abstraction has 2445 states and 3679 transitions. [2024-12-02 13:08:59,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 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 13:08:59,513 INFO L276 IsEmpty]: Start isEmpty. Operand 2445 states and 3679 transitions. [2024-12-02 13:08:59,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 13:08:59,514 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:59,514 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:08:59,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 13:08:59,514 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:59,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:59,515 INFO L85 PathProgramCache]: Analyzing trace with hash 551619955, now seen corresponding path program 1 times [2024-12-02 13:08:59,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:59,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336253819] [2024-12-02 13:08:59,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:59,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:59,683 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 13:08:59,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:59,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336253819] [2024-12-02 13:08:59,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336253819] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:59,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:59,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:08:59,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336221670] [2024-12-02 13:08:59,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:59,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:08:59,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:59,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:08:59,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:08:59,684 INFO L87 Difference]: Start difference. First operand 2445 states and 3679 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 13:08:59,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:59,724 INFO L93 Difference]: Finished difference Result 2678 states and 4054 transitions. [2024-12-02 13:08:59,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:08:59,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 13:08:59,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:59,733 INFO L225 Difference]: With dead ends: 2678 [2024-12-02 13:08:59,733 INFO L226 Difference]: Without dead ends: 2556 [2024-12-02 13:08:59,734 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 13:08:59,735 INFO L435 NwaCegarLoop]: 1602 mSDtfsCounter, 1508 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:59,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1695 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:08:59,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2556 states. [2024-12-02 13:08:59,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2556 to 2552. [2024-12-02 13:08:59,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2552 states, 2550 states have (on average 1.5094117647058825) internal successors, (3849), 2551 states have internal predecessors, (3849), 0 states have call successors, (0), 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 13:08:59,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2552 states to 2552 states and 3849 transitions. [2024-12-02 13:08:59,791 INFO L78 Accepts]: Start accepts. Automaton has 2552 states and 3849 transitions. Word has length 92 [2024-12-02 13:08:59,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:59,791 INFO L471 AbstractCegarLoop]: Abstraction has 2552 states and 3849 transitions. [2024-12-02 13:08:59,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 13:08:59,792 INFO L276 IsEmpty]: Start isEmpty. Operand 2552 states and 3849 transitions. [2024-12-02 13:08:59,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 13:08:59,793 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:59,793 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:08:59,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 13:08:59,793 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:59,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:59,794 INFO L85 PathProgramCache]: Analyzing trace with hash 618113467, now seen corresponding path program 1 times [2024-12-02 13:08:59,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:59,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302060034] [2024-12-02 13:08:59,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:59,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:00,332 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 13:09:00,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:00,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302060034] [2024-12-02 13:09:00,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302060034] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:00,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:00,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 13:09:00,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883300213] [2024-12-02 13:09:00,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:00,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:09:00,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:00,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:09:00,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:09:00,334 INFO L87 Difference]: Start difference. First operand 2552 states and 3849 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 13:09:00,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:09:00,824 INFO L93 Difference]: Finished difference Result 2783 states and 4217 transitions. [2024-12-02 13:09:00,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:09:00,824 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 13:09:00,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:09:00,835 INFO L225 Difference]: With dead ends: 2783 [2024-12-02 13:09:00,835 INFO L226 Difference]: Without dead ends: 2554 [2024-12-02 13:09:00,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-12-02 13:09:00,838 INFO L435 NwaCegarLoop]: 1596 mSDtfsCounter, 4611 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4611 SdHoareTripleChecker+Valid, 2281 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:09:00,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4611 Valid, 2281 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:09:00,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2554 states. [2024-12-02 13:09:00,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2554 to 2552. [2024-12-02 13:09:00,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2552 states, 2550 states have (on average 1.508627450980392) internal successors, (3847), 2551 states have internal predecessors, (3847), 0 states have call successors, (0), 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 13:09:00,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2552 states to 2552 states and 3847 transitions. [2024-12-02 13:09:00,897 INFO L78 Accepts]: Start accepts. Automaton has 2552 states and 3847 transitions. Word has length 92 [2024-12-02 13:09:00,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:09:00,898 INFO L471 AbstractCegarLoop]: Abstraction has 2552 states and 3847 transitions. [2024-12-02 13:09:00,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 13:09:00,898 INFO L276 IsEmpty]: Start isEmpty. Operand 2552 states and 3847 transitions. [2024-12-02 13:09:00,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 13:09:00,900 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:00,900 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:09:00,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 13:09:00,900 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:09:00,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:00,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1566925479, now seen corresponding path program 1 times [2024-12-02 13:09:00,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:00,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145807517] [2024-12-02 13:09:00,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:00,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:01,247 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 13:09:01,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:01,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145807517] [2024-12-02 13:09:01,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145807517] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:01,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:01,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:09:01,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532516790] [2024-12-02 13:09:01,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:01,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:09:01,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:01,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:09:01,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:09:01,249 INFO L87 Difference]: Start difference. First operand 2552 states and 3847 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 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 13:09:01,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:09:01,293 INFO L93 Difference]: Finished difference Result 2560 states and 3856 transitions. [2024-12-02 13:09:01,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:09:01,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 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 13:09:01,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:09:01,300 INFO L225 Difference]: With dead ends: 2560 [2024-12-02 13:09:01,301 INFO L226 Difference]: Without dead ends: 2558 [2024-12-02 13:09:01,302 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 13:09:01,302 INFO L435 NwaCegarLoop]: 1603 mSDtfsCounter, 0 mSDsluCounter, 4800 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6403 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:09:01,302 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6403 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:09:01,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2558 states. [2024-12-02 13:09:01,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2558 to 2558. [2024-12-02 13:09:01,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2558 states, 2556 states have (on average 1.5070422535211268) internal successors, (3852), 2557 states have internal predecessors, (3852), 0 states have call successors, (0), 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 13:09:01,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2558 states to 2558 states and 3852 transitions. [2024-12-02 13:09:01,350 INFO L78 Accepts]: Start accepts. Automaton has 2558 states and 3852 transitions. Word has length 93 [2024-12-02 13:09:01,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:09:01,350 INFO L471 AbstractCegarLoop]: Abstraction has 2558 states and 3852 transitions. [2024-12-02 13:09:01,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 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 13:09:01,350 INFO L276 IsEmpty]: Start isEmpty. Operand 2558 states and 3852 transitions. [2024-12-02 13:09:01,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 13:09:01,351 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:01,351 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:09:01,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 13:09:01,351 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:09:01,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:01,352 INFO L85 PathProgramCache]: Analyzing trace with hash -401487589, now seen corresponding path program 1 times [2024-12-02 13:09:01,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:01,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539705345] [2024-12-02 13:09:01,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:01,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:01,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:01,446 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 13:09:01,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:01,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539705345] [2024-12-02 13:09:01,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539705345] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:01,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:01,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:09:01,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325219739] [2024-12-02 13:09:01,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:01,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:09:01,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:01,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:09:01,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:09:01,448 INFO L87 Difference]: Start difference. First operand 2558 states and 3852 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 13:09:01,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:09:01,485 INFO L93 Difference]: Finished difference Result 3012 states and 4564 transitions. [2024-12-02 13:09:01,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:09:01,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 13:09:01,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:09:01,494 INFO L225 Difference]: With dead ends: 3012 [2024-12-02 13:09:01,494 INFO L226 Difference]: Without dead ends: 2777 [2024-12-02 13:09:01,495 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 13:09:01,496 INFO L435 NwaCegarLoop]: 1683 mSDtfsCounter, 1527 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 1788 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 13:09:01,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1527 Valid, 1788 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:09:01,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2777 states. [2024-12-02 13:09:01,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2777 to 2775. [2024-12-02 13:09:01,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2775 states, 2773 states have (on average 1.5106382978723405) internal successors, (4189), 2774 states have internal predecessors, (4189), 0 states have call successors, (0), 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 13:09:01,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 4189 transitions. [2024-12-02 13:09:01,551 INFO L78 Accepts]: Start accepts. Automaton has 2775 states and 4189 transitions. Word has length 94 [2024-12-02 13:09:01,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:09:01,551 INFO L471 AbstractCegarLoop]: Abstraction has 2775 states and 4189 transitions. [2024-12-02 13:09:01,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 13:09:01,551 INFO L276 IsEmpty]: Start isEmpty. Operand 2775 states and 4189 transitions. [2024-12-02 13:09:01,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 13:09:01,552 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:01,552 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:09:01,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 13:09:01,552 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:09:01,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:01,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1540581915, now seen corresponding path program 1 times [2024-12-02 13:09:01,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:01,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680404863] [2024-12-02 13:09:01,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:01,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:01,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:01,664 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 13:09:01,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:01,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680404863] [2024-12-02 13:09:01,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680404863] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:01,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:01,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:09:01,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921183273] [2024-12-02 13:09:01,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:01,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:09:01,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:01,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:09:01,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:09:01,665 INFO L87 Difference]: Start difference. First operand 2775 states and 4189 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 13:09:01,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:09:01,712 INFO L93 Difference]: Finished difference Result 3647 states and 5547 transitions. [2024-12-02 13:09:01,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:09:01,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 13:09:01,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:09:01,722 INFO L225 Difference]: With dead ends: 3647 [2024-12-02 13:09:01,722 INFO L226 Difference]: Without dead ends: 3195 [2024-12-02 13:09:01,723 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 13:09:01,724 INFO L435 NwaCegarLoop]: 1681 mSDtfsCounter, 1525 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 1790 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 13:09:01,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1525 Valid, 1790 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:09:01,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3195 states. [2024-12-02 13:09:01,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3195 to 3193. [2024-12-02 13:09:01,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3193 states, 3191 states have (on average 1.5139454716389846) internal successors, (4831), 3192 states have internal predecessors, (4831), 0 states have call successors, (0), 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 13:09:01,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3193 states to 3193 states and 4831 transitions. [2024-12-02 13:09:01,790 INFO L78 Accepts]: Start accepts. Automaton has 3193 states and 4831 transitions. Word has length 94 [2024-12-02 13:09:01,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:09:01,791 INFO L471 AbstractCegarLoop]: Abstraction has 3193 states and 4831 transitions. [2024-12-02 13:09:01,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 13:09:01,791 INFO L276 IsEmpty]: Start isEmpty. Operand 3193 states and 4831 transitions. [2024-12-02 13:09:01,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 13:09:01,792 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:01,792 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:09:01,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 13:09:01,792 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:09:01,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:01,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1967352859, now seen corresponding path program 1 times [2024-12-02 13:09:01,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:01,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044493746] [2024-12-02 13:09:01,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:01,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:01,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:01,883 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 13:09:01,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:01,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044493746] [2024-12-02 13:09:01,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044493746] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:01,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:01,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:09:01,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572789004] [2024-12-02 13:09:01,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:01,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:09:01,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:01,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:09:01,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:09:01,884 INFO L87 Difference]: Start difference. First operand 3193 states and 4831 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 13:09:01,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:09:01,938 INFO L93 Difference]: Finished difference Result 4869 states and 7417 transitions. [2024-12-02 13:09:01,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:09:01,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 13:09:01,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:09:01,949 INFO L225 Difference]: With dead ends: 4869 [2024-12-02 13:09:01,949 INFO L226 Difference]: Without dead ends: 3999 [2024-12-02 13:09:01,951 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 13:09:01,952 INFO L435 NwaCegarLoop]: 1669 mSDtfsCounter, 1521 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 1786 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 13:09:01,952 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 1786 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:09:01,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3999 states. [2024-12-02 13:09:02,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3999 to 3997. [2024-12-02 13:09:02,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3997 states, 3995 states have (on average 1.5146433041301628) internal successors, (6051), 3996 states have internal predecessors, (6051), 0 states have call successors, (0), 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 13:09:02,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3997 states to 3997 states and 6051 transitions. [2024-12-02 13:09:02,043 INFO L78 Accepts]: Start accepts. Automaton has 3997 states and 6051 transitions. Word has length 94 [2024-12-02 13:09:02,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:09:02,043 INFO L471 AbstractCegarLoop]: Abstraction has 3997 states and 6051 transitions. [2024-12-02 13:09:02,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 13:09:02,043 INFO L276 IsEmpty]: Start isEmpty. Operand 3997 states and 6051 transitions. [2024-12-02 13:09:02,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 13:09:02,044 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:02,044 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:09:02,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 13:09:02,045 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:09:02,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:02,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1089352421, now seen corresponding path program 1 times [2024-12-02 13:09:02,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:02,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86888591] [2024-12-02 13:09:02,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:02,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:02,129 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 13:09:02,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:02,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86888591] [2024-12-02 13:09:02,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86888591] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:02,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:02,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:09:02,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039873624] [2024-12-02 13:09:02,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:02,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:09:02,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:02,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:09:02,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:09:02,130 INFO L87 Difference]: Start difference. First operand 3997 states and 6051 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 13:09:02,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:09:02,245 INFO L93 Difference]: Finished difference Result 7217 states and 10965 transitions. [2024-12-02 13:09:02,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:09:02,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 13:09:02,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:09:02,257 INFO L225 Difference]: With dead ends: 7217 [2024-12-02 13:09:02,258 INFO L226 Difference]: Without dead ends: 5543 [2024-12-02 13:09:02,260 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 13:09:02,261 INFO L435 NwaCegarLoop]: 1667 mSDtfsCounter, 1519 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1788 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 13:09:02,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1788 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:09:02,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5543 states. [2024-12-02 13:09:02,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5543 to 5541. [2024-12-02 13:09:02,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5541 states, 5539 states have (on average 1.5098393211771077) internal successors, (8363), 5540 states have internal predecessors, (8363), 0 states have call successors, (0), 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 13:09:02,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5541 states to 5541 states and 8363 transitions. [2024-12-02 13:09:02,398 INFO L78 Accepts]: Start accepts. Automaton has 5541 states and 8363 transitions. Word has length 94 [2024-12-02 13:09:02,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:09:02,399 INFO L471 AbstractCegarLoop]: Abstraction has 5541 states and 8363 transitions. [2024-12-02 13:09:02,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 13:09:02,399 INFO L276 IsEmpty]: Start isEmpty. Operand 5541 states and 8363 transitions. [2024-12-02 13:09:02,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 13:09:02,400 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:02,400 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:09:02,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 13:09:02,400 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:09:02,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:02,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1523888357, now seen corresponding path program 1 times [2024-12-02 13:09:02,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:02,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895560535] [2024-12-02 13:09:02,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:02,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:02,486 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 13:09:02,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:02,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895560535] [2024-12-02 13:09:02,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895560535] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:02,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:02,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:09:02,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974011677] [2024-12-02 13:09:02,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:02,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:09:02,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:02,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:09:02,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:09:02,488 INFO L87 Difference]: Start difference. First operand 5541 states and 8363 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 13:09:02,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:09:02,618 INFO L93 Difference]: Finished difference Result 11721 states and 17677 transitions. [2024-12-02 13:09:02,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:09:02,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 13:09:02,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:09:02,636 INFO L225 Difference]: With dead ends: 11721 [2024-12-02 13:09:02,636 INFO L226 Difference]: Without dead ends: 8503 [2024-12-02 13:09:02,641 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 13:09:02,642 INFO L435 NwaCegarLoop]: 1655 mSDtfsCounter, 1515 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1784 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 13:09:02,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1784 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:09:02,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8503 states. [2024-12-02 13:09:02,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8503 to 8501. [2024-12-02 13:09:02,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8501 states, 8499 states have (on average 1.4979409342275563) internal successors, (12731), 8500 states have internal predecessors, (12731), 0 states have call successors, (0), 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 13:09:02,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8501 states to 8501 states and 12731 transitions. [2024-12-02 13:09:02,923 INFO L78 Accepts]: Start accepts. Automaton has 8501 states and 12731 transitions. Word has length 94 [2024-12-02 13:09:02,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:09:02,924 INFO L471 AbstractCegarLoop]: Abstraction has 8501 states and 12731 transitions. [2024-12-02 13:09:02,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 13:09:02,925 INFO L276 IsEmpty]: Start isEmpty. Operand 8501 states and 12731 transitions. [2024-12-02 13:09:02,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 13:09:02,926 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:02,926 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:09:02,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 13:09:02,926 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:09:02,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:02,927 INFO L85 PathProgramCache]: Analyzing trace with hash 990146075, now seen corresponding path program 1 times [2024-12-02 13:09:02,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:02,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232787197] [2024-12-02 13:09:02,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:02,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:03,028 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 13:09:03,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:03,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232787197] [2024-12-02 13:09:03,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232787197] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:03,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:03,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:09:03,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698214429] [2024-12-02 13:09:03,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:03,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:09:03,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:03,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:09:03,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:09:03,030 INFO L87 Difference]: Start difference. First operand 8501 states and 12731 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 13:09:03,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:09:03,330 INFO L93 Difference]: Finished difference Result 20345 states and 30333 transitions. [2024-12-02 13:09:03,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:09:03,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 13:09:03,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:09:03,359 INFO L225 Difference]: With dead ends: 20345 [2024-12-02 13:09:03,359 INFO L226 Difference]: Without dead ends: 14167 [2024-12-02 13:09:03,365 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 13:09:03,366 INFO L435 NwaCegarLoop]: 1665 mSDtfsCounter, 1517 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1790 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 13:09:03,366 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 1790 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:09:03,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14167 states. [2024-12-02 13:09:03,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14167 to 14165. [2024-12-02 13:09:03,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14165 states, 14163 states have (on average 1.4795594153780978) internal successors, (20955), 14164 states have internal predecessors, (20955), 0 states have call successors, (0), 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 13:09:03,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14165 states to 14165 states and 20955 transitions. [2024-12-02 13:09:03,794 INFO L78 Accepts]: Start accepts. Automaton has 14165 states and 20955 transitions. Word has length 94 [2024-12-02 13:09:03,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:09:03,795 INFO L471 AbstractCegarLoop]: Abstraction has 14165 states and 20955 transitions. [2024-12-02 13:09:03,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 13:09:03,795 INFO L276 IsEmpty]: Start isEmpty. Operand 14165 states and 20955 transitions. [2024-12-02 13:09:03,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 13:09:03,796 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:03,796 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:09:03,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 13:09:03,796 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:09:03,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:03,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1703496475, now seen corresponding path program 1 times [2024-12-02 13:09:03,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:03,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398550974] [2024-12-02 13:09:03,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:03,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:03,903 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 13:09:03,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:03,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398550974] [2024-12-02 13:09:03,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398550974] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:03,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:03,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:09:03,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457415708] [2024-12-02 13:09:03,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:03,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:09:03,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:03,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:09:03,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:09:03,905 INFO L87 Difference]: Start difference. First operand 14165 states and 20955 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 13:09:04,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:09:04,382 INFO L93 Difference]: Finished difference Result 36825 states and 54109 transitions. [2024-12-02 13:09:04,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:09:04,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 13:09:04,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:09:04,441 INFO L225 Difference]: With dead ends: 36825 [2024-12-02 13:09:04,441 INFO L226 Difference]: Without dead ends: 24983 [2024-12-02 13:09:04,459 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 13:09:04,460 INFO L435 NwaCegarLoop]: 1679 mSDtfsCounter, 1523 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1792 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 13:09:04,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1792 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:09:04,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24983 states. [2024-12-02 13:09:05,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24983 to 24981. [2024-12-02 13:09:05,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24981 states, 24979 states have (on average 1.4563833620241002) internal successors, (36379), 24980 states have internal predecessors, (36379), 0 states have call successors, (0), 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 13:09:05,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24981 states to 24981 states and 36379 transitions. [2024-12-02 13:09:05,076 INFO L78 Accepts]: Start accepts. Automaton has 24981 states and 36379 transitions. Word has length 94 [2024-12-02 13:09:05,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:09:05,076 INFO L471 AbstractCegarLoop]: Abstraction has 24981 states and 36379 transitions. [2024-12-02 13:09:05,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 13:09:05,076 INFO L276 IsEmpty]: Start isEmpty. Operand 24981 states and 36379 transitions. [2024-12-02 13:09:05,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 13:09:05,077 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:05,077 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:09:05,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 13:09:05,077 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:09:05,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:05,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1087415530, now seen corresponding path program 1 times [2024-12-02 13:09:05,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:05,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578770860] [2024-12-02 13:09:05,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:05,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:05,152 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 13:09:05,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:05,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578770860] [2024-12-02 13:09:05,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578770860] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:05,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:05,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:09:05,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806562079] [2024-12-02 13:09:05,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:05,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:09:05,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:05,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:09:05,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:09:05,154 INFO L87 Difference]: Start difference. First operand 24981 states and 36379 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 13:09:05,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:09:05,782 INFO L93 Difference]: Finished difference Result 48540 states and 70945 transitions. [2024-12-02 13:09:05,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:09:05,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2024-12-02 13:09:05,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:09:05,835 INFO L225 Difference]: With dead ends: 48540 [2024-12-02 13:09:05,835 INFO L226 Difference]: Without dead ends: 35993 [2024-12-02 13:09:05,849 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 13:09:05,850 INFO L435 NwaCegarLoop]: 1688 mSDtfsCounter, 1526 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1789 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 13:09:05,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1789 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:09:05,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35993 states. [2024-12-02 13:09:06,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35993 to 35991. [2024-12-02 13:09:06,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35991 states, 35989 states have (on average 1.4483592208730445) internal successors, (52125), 35990 states have internal predecessors, (52125), 0 states have call successors, (0), 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 13:09:06,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35991 states to 35991 states and 52125 transitions. [2024-12-02 13:09:06,647 INFO L78 Accepts]: Start accepts. Automaton has 35991 states and 52125 transitions. Word has length 96 [2024-12-02 13:09:06,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:09:06,647 INFO L471 AbstractCegarLoop]: Abstraction has 35991 states and 52125 transitions. [2024-12-02 13:09:06,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 13:09:06,647 INFO L276 IsEmpty]: Start isEmpty. Operand 35991 states and 52125 transitions. [2024-12-02 13:09:06,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 13:09:06,654 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:06,654 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:09:06,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 13:09:06,654 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:09:06,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:06,655 INFO L85 PathProgramCache]: Analyzing trace with hash 54573310, now seen corresponding path program 1 times [2024-12-02 13:09:06,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:06,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973082017] [2024-12-02 13:09:06,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:06,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:06,930 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 13:09:06,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:06,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973082017] [2024-12-02 13:09:06,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973082017] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:06,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:06,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 13:09:06,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501382524] [2024-12-02 13:09:06,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:06,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:09:06,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:06,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:09:06,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:09:06,931 INFO L87 Difference]: Start difference. First operand 35991 states and 52125 transitions. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 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 13:09:11,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:09:11,151 INFO L93 Difference]: Finished difference Result 312105 states and 450726 transitions. [2024-12-02 13:09:11,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:09:11,152 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 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 119 [2024-12-02 13:09:11,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:09:11,558 INFO L225 Difference]: With dead ends: 312105 [2024-12-02 13:09:11,558 INFO L226 Difference]: Without dead ends: 278439 [2024-12-02 13:09:11,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:09:11,611 INFO L435 NwaCegarLoop]: 1706 mSDtfsCounter, 11836 mSDsluCounter, 3303 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11836 SdHoareTripleChecker+Valid, 5009 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:09:11,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11836 Valid, 5009 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:09:11,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278439 states. [2024-12-02 13:09:14,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278439 to 69655. [2024-12-02 13:09:14,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69655 states, 69653 states have (on average 1.4411583133533372) internal successors, (100381), 69654 states have internal predecessors, (100381), 0 states have call successors, (0), 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 13:09:14,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69655 states to 69655 states and 100381 transitions. [2024-12-02 13:09:14,185 INFO L78 Accepts]: Start accepts. Automaton has 69655 states and 100381 transitions. Word has length 119 [2024-12-02 13:09:14,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:09:14,185 INFO L471 AbstractCegarLoop]: Abstraction has 69655 states and 100381 transitions. [2024-12-02 13:09:14,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 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 13:09:14,186 INFO L276 IsEmpty]: Start isEmpty. Operand 69655 states and 100381 transitions. [2024-12-02 13:09:14,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 13:09:14,194 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:14,195 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:09:14,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 13:09:14,195 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:09:14,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:14,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1996642814, now seen corresponding path program 1 times [2024-12-02 13:09:14,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:14,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152593270] [2024-12-02 13:09:14,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:14,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:14,574 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 13:09:14,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:14,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152593270] [2024-12-02 13:09:14,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152593270] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:14,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:14,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 13:09:14,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410720014] [2024-12-02 13:09:14,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:14,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:09:14,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:14,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:09:14,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:09:14,575 INFO L87 Difference]: Start difference. First operand 69655 states and 100381 transitions. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 13:09:20,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:09:20,673 INFO L93 Difference]: Finished difference Result 345769 states and 498982 transitions. [2024-12-02 13:09:20,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:09:20,674 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 119 [2024-12-02 13:09:20,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:09:21,015 INFO L225 Difference]: With dead ends: 345769 [2024-12-02 13:09:21,015 INFO L226 Difference]: Without dead ends: 312103 [2024-12-02 13:09:21,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:09:21,068 INFO L435 NwaCegarLoop]: 1703 mSDtfsCounter, 11886 mSDsluCounter, 3103 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11886 SdHoareTripleChecker+Valid, 4806 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:09:21,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11886 Valid, 4806 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:09:21,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312103 states. [2024-12-02 13:09:26,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312103 to 120215. [2024-12-02 13:09:26,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120215 states, 120213 states have (on average 1.4344954372655203) internal successors, (172445), 120214 states have internal predecessors, (172445), 0 states have call successors, (0), 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 13:09:26,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120215 states to 120215 states and 172445 transitions. [2024-12-02 13:09:26,273 INFO L78 Accepts]: Start accepts. Automaton has 120215 states and 172445 transitions. Word has length 119 [2024-12-02 13:09:26,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:09:26,273 INFO L471 AbstractCegarLoop]: Abstraction has 120215 states and 172445 transitions. [2024-12-02 13:09:26,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 13:09:26,273 INFO L276 IsEmpty]: Start isEmpty. Operand 120215 states and 172445 transitions. [2024-12-02 13:09:26,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 13:09:26,277 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:26,277 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:09:26,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 13:09:26,277 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:09:26,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:26,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1871553538, now seen corresponding path program 1 times [2024-12-02 13:09:26,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:26,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194180574] [2024-12-02 13:09:26,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:26,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:26,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:26,542 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 13:09:26,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:26,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194180574] [2024-12-02 13:09:26,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194180574] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:26,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:26,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 13:09:26,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220361978] [2024-12-02 13:09:26,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:26,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:09:26,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:26,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:09:26,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:09:26,544 INFO L87 Difference]: Start difference. First operand 120215 states and 172445 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 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 13:09:33,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:09:33,318 INFO L93 Difference]: Finished difference Result 379433 states and 547238 transitions. [2024-12-02 13:09:33,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:09:33,319 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 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 119 [2024-12-02 13:09:33,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:09:33,692 INFO L225 Difference]: With dead ends: 379433 [2024-12-02 13:09:33,692 INFO L226 Difference]: Without dead ends: 345767 [2024-12-02 13:09:33,747 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:09:33,748 INFO L435 NwaCegarLoop]: 1700 mSDtfsCounter, 11959 mSDsluCounter, 3100 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11959 SdHoareTripleChecker+Valid, 4800 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:09:33,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11959 Valid, 4800 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:09:33,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345767 states. [2024-12-02 13:09:38,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345767 to 153879. [2024-12-02 13:09:38,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153879 states, 153877 states have (on average 1.4342689290797195) internal successors, (220701), 153878 states have internal predecessors, (220701), 0 states have call successors, (0), 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 13:09:38,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153879 states to 153879 states and 220701 transitions. [2024-12-02 13:09:38,597 INFO L78 Accepts]: Start accepts. Automaton has 153879 states and 220701 transitions. Word has length 119 [2024-12-02 13:09:38,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:09:38,598 INFO L471 AbstractCegarLoop]: Abstraction has 153879 states and 220701 transitions. [2024-12-02 13:09:38,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 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 13:09:38,598 INFO L276 IsEmpty]: Start isEmpty. Operand 153879 states and 220701 transitions. [2024-12-02 13:09:38,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 13:09:38,603 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:38,603 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:09:38,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 13:09:38,603 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:09:38,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:38,604 INFO L85 PathProgramCache]: Analyzing trace with hash -633291522, now seen corresponding path program 1 times [2024-12-02 13:09:38,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:38,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726929901] [2024-12-02 13:09:38,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:38,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:38,849 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 13:09:38,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:38,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726929901] [2024-12-02 13:09:38,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726929901] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:38,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:38,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 13:09:38,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762942368] [2024-12-02 13:09:38,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:38,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:09:38,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:38,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:09:38,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:09:38,850 INFO L87 Difference]: Start difference. First operand 153879 states and 220701 transitions. Second operand has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 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 13:09:48,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:09:48,330 INFO L93 Difference]: Finished difference Result 413097 states and 595494 transitions. [2024-12-02 13:09:48,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:09:48,330 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 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 119 [2024-12-02 13:09:48,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:09:48,756 INFO L225 Difference]: With dead ends: 413097 [2024-12-02 13:09:48,756 INFO L226 Difference]: Without dead ends: 379431 [2024-12-02 13:09:48,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:09:48,818 INFO L435 NwaCegarLoop]: 1697 mSDtfsCounter, 12181 mSDsluCounter, 3037 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12181 SdHoareTripleChecker+Valid, 4734 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:09:48,818 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12181 Valid, 4734 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:09:49,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379431 states. [2024-12-02 13:09:54,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379431 to 187543. [2024-12-02 13:09:55,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187543 states, 187541 states have (on average 1.434123738275897) internal successors, (268957), 187542 states have internal predecessors, (268957), 0 states have call successors, (0), 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 13:09:55,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187543 states to 187543 states and 268957 transitions. [2024-12-02 13:09:55,353 INFO L78 Accepts]: Start accepts. Automaton has 187543 states and 268957 transitions. Word has length 119 [2024-12-02 13:09:55,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:09:55,353 INFO L471 AbstractCegarLoop]: Abstraction has 187543 states and 268957 transitions. [2024-12-02 13:09:55,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 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 13:09:55,354 INFO L276 IsEmpty]: Start isEmpty. Operand 187543 states and 268957 transitions. [2024-12-02 13:09:55,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 13:09:55,359 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:55,359 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:09:55,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 13:09:55,360 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:09:55,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:55,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1067827458, now seen corresponding path program 1 times [2024-12-02 13:09:55,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:55,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281291446] [2024-12-02 13:09:55,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:55,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:55,530 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-02 13:09:55,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:55,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281291446] [2024-12-02 13:09:55,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281291446] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:55,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:55,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 13:09:55,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684556063] [2024-12-02 13:09:55,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:55,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:09:55,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:55,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:09:55,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:09:55,532 INFO L87 Difference]: Start difference. First operand 187543 states and 268957 transitions. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 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 13:10:04,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:10:04,859 INFO L93 Difference]: Finished difference Result 446761 states and 643750 transitions. [2024-12-02 13:10:04,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:10:04,860 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 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 119 [2024-12-02 13:10:04,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:10:05,451 INFO L225 Difference]: With dead ends: 446761 [2024-12-02 13:10:05,451 INFO L226 Difference]: Without dead ends: 413095 [2024-12-02 13:10:05,531 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:10:05,531 INFO L435 NwaCegarLoop]: 1696 mSDtfsCounter, 12022 mSDsluCounter, 3105 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12022 SdHoareTripleChecker+Valid, 4801 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:10:05,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12022 Valid, 4801 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:10:05,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413095 states. [2024-12-02 13:10:12,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413095 to 221207. [2024-12-02 13:10:13,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221207 states, 221205 states have (on average 1.4340227390881761) internal successors, (317213), 221206 states have internal predecessors, (317213), 0 states have call successors, (0), 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 13:10:13,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221207 states to 221207 states and 317213 transitions. [2024-12-02 13:10:13,564 INFO L78 Accepts]: Start accepts. Automaton has 221207 states and 317213 transitions. Word has length 119 [2024-12-02 13:10:13,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:10:13,564 INFO L471 AbstractCegarLoop]: Abstraction has 221207 states and 317213 transitions. [2024-12-02 13:10:13,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 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 13:10:13,565 INFO L276 IsEmpty]: Start isEmpty. Operand 221207 states and 317213 transitions. [2024-12-02 13:10:13,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 13:10:13,571 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:10:13,571 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:10:13,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 13:10:13,571 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:10:13,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:10:13,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1446206974, now seen corresponding path program 1 times [2024-12-02 13:10:13,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:10:13,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170802054] [2024-12-02 13:10:13,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:10:13,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:10:13,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:10:13,757 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-02 13:10:13,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:10:13,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170802054] [2024-12-02 13:10:13,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170802054] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:10:13,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:10:13,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 13:10:13,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831365030] [2024-12-02 13:10:13,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:10:13,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:10:13,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:10:13,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:10:13,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:10:13,758 INFO L87 Difference]: Start difference. First operand 221207 states and 317213 transitions. Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 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 13:10:26,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:10:26,170 INFO L93 Difference]: Finished difference Result 480425 states and 692006 transitions. [2024-12-02 13:10:26,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:10:26,170 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 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 119 [2024-12-02 13:10:26,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:10:26,687 INFO L225 Difference]: With dead ends: 480425 [2024-12-02 13:10:26,687 INFO L226 Difference]: Without dead ends: 446759 [2024-12-02 13:10:26,756 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:10:26,757 INFO L435 NwaCegarLoop]: 1702 mSDtfsCounter, 11787 mSDsluCounter, 3279 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11787 SdHoareTripleChecker+Valid, 4981 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:10:26,757 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11787 Valid, 4981 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:10:26,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446759 states. [2024-12-02 13:10:34,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446759 to 254871. [2024-12-02 13:10:34,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254871 states, 254869 states have (on average 1.433948420561151) internal successors, (365469), 254870 states have internal predecessors, (365469), 0 states have call successors, (0), 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 13:10:35,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254871 states to 254871 states and 365469 transitions. [2024-12-02 13:10:35,213 INFO L78 Accepts]: Start accepts. Automaton has 254871 states and 365469 transitions. Word has length 119 [2024-12-02 13:10:35,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:10:35,214 INFO L471 AbstractCegarLoop]: Abstraction has 254871 states and 365469 transitions. [2024-12-02 13:10:35,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 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 13:10:35,214 INFO L276 IsEmpty]: Start isEmpty. Operand 254871 states and 365469 transitions. [2024-12-02 13:10:35,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 13:10:35,219 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:10:35,220 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:10:35,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 13:10:35,220 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:10:35,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:10:35,220 INFO L85 PathProgramCache]: Analyzing trace with hash -2135409922, now seen corresponding path program 1 times [2024-12-02 13:10:35,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:10:35,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286632757] [2024-12-02 13:10:35,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:10:35,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:10:35,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:10:35,425 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 13:10:35,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:10:35,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286632757] [2024-12-02 13:10:35,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286632757] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:10:35,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:10:35,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 13:10:35,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418602272] [2024-12-02 13:10:35,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:10:35,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:10:35,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:10:35,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:10:35,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:10:35,427 INFO L87 Difference]: Start difference. First operand 254871 states and 365469 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 13:10:47,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:10:47,929 INFO L93 Difference]: Finished difference Result 514089 states and 740262 transitions. [2024-12-02 13:10:47,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:10:47,930 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 119 [2024-12-02 13:10:47,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:10:48,489 INFO L225 Difference]: With dead ends: 514089 [2024-12-02 13:10:48,489 INFO L226 Difference]: Without dead ends: 480423 [2024-12-02 13:10:48,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:10:48,571 INFO L435 NwaCegarLoop]: 1705 mSDtfsCounter, 11754 mSDsluCounter, 3517 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11754 SdHoareTripleChecker+Valid, 5222 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:10:48,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11754 Valid, 5222 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:10:48,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480423 states. [2024-12-02 13:10:57,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480423 to 288535. [2024-12-02 13:10:58,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288535 states, 288533 states have (on average 1.4338914439596164) internal successors, (413725), 288534 states have internal predecessors, (413725), 0 states have call successors, (0), 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 13:10:58,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288535 states to 288535 states and 413725 transitions. [2024-12-02 13:10:58,737 INFO L78 Accepts]: Start accepts. Automaton has 288535 states and 413725 transitions. Word has length 119 [2024-12-02 13:10:58,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:10:58,738 INFO L471 AbstractCegarLoop]: Abstraction has 288535 states and 413725 transitions. [2024-12-02 13:10:58,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 13:10:58,738 INFO L276 IsEmpty]: Start isEmpty. Operand 288535 states and 413725 transitions. [2024-12-02 13:10:58,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 13:10:58,749 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:10:58,750 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:10:58,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 13:10:58,750 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:10:58,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:10:58,750 INFO L85 PathProgramCache]: Analyzing trace with hash -443851434, now seen corresponding path program 1 times [2024-12-02 13:10:58,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:10:58,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078678693] [2024-12-02 13:10:58,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:10:58,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:10:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:10:58,871 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:10:58,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:10:58,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078678693] [2024-12-02 13:10:58,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078678693] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:10:58,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:10:58,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:10:58,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086648451] [2024-12-02 13:10:58,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:10:58,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:10:58,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:10:58,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:10:58,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:10:58,872 INFO L87 Difference]: Start difference. First operand 288535 states and 413725 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 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 13:11:04,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:11:04,855 INFO L93 Difference]: Finished difference Result 488757 states and 703162 transitions. [2024-12-02 13:11:04,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:11:04,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2024-12-02 13:11:04,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:11:05,243 INFO L225 Difference]: With dead ends: 488757 [2024-12-02 13:11:05,243 INFO L226 Difference]: Without dead ends: 202547 [2024-12-02 13:11:05,321 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 13:11:05,321 INFO L435 NwaCegarLoop]: 1670 mSDtfsCounter, 74 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 3261 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 13:11:05,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 3261 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:11:05,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202547 states. [2024-12-02 13:11:11,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202547 to 202545. [2024-12-02 13:11:11,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202545 states, 202543 states have (on average 1.4354630868506935) internal successors, (290743), 202544 states have internal predecessors, (290743), 0 states have call successors, (0), 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 13:11:11,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202545 states to 202545 states and 290743 transitions. [2024-12-02 13:11:11,635 INFO L78 Accepts]: Start accepts. Automaton has 202545 states and 290743 transitions. Word has length 121 [2024-12-02 13:11:11,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:11:11,636 INFO L471 AbstractCegarLoop]: Abstraction has 202545 states and 290743 transitions. [2024-12-02 13:11:11,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 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 13:11:11,636 INFO L276 IsEmpty]: Start isEmpty. Operand 202545 states and 290743 transitions. [2024-12-02 13:11:11,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 13:11:11,639 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:11:11,640 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:11:11,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 13:11:11,640 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:11:11,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:11:11,640 INFO L85 PathProgramCache]: Analyzing trace with hash -899555783, now seen corresponding path program 1 times [2024-12-02 13:11:11,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:11:11,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131138746] [2024-12-02 13:11:11,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:11:11,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:11:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:11:11,818 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 13:11:11,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:11:11,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131138746] [2024-12-02 13:11:11,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131138746] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:11:11,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:11:11,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 13:11:11,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147647358] [2024-12-02 13:11:11,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:11:11,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:11:11,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:11:11,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:11:11,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:11:11,819 INFO L87 Difference]: Start difference. First operand 202545 states and 290743 transitions. Second operand has 10 states, 10 states have (on average 12.0) internal successors, (120), 10 states have internal predecessors, (120), 0 states have call successors, (0), 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 13:11:21,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:11:21,906 INFO L93 Difference]: Finished difference Result 390979 states and 563136 transitions. [2024-12-02 13:11:21,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:11:21,906 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 10 states have internal predecessors, (120), 0 states have call successors, (0), 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 121 [2024-12-02 13:11:21,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:11:22,284 INFO L225 Difference]: With dead ends: 390979 [2024-12-02 13:11:22,284 INFO L226 Difference]: Without dead ends: 367425 [2024-12-02 13:11:22,335 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:11:22,335 INFO L435 NwaCegarLoop]: 1695 mSDtfsCounter, 11850 mSDsluCounter, 3642 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11850 SdHoareTripleChecker+Valid, 5337 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:11:22,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11850 Valid, 5337 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:11:22,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367425 states. [2024-12-02 13:11:29,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367425 to 226097. [2024-12-02 13:11:29,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226097 states, 226095 states have (on average 1.4353922023927994) internal successors, (324535), 226096 states have internal predecessors, (324535), 0 states have call successors, (0), 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 13:11:30,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226097 states to 226097 states and 324535 transitions. [2024-12-02 13:11:30,112 INFO L78 Accepts]: Start accepts. Automaton has 226097 states and 324535 transitions. Word has length 121 [2024-12-02 13:11:30,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:11:30,113 INFO L471 AbstractCegarLoop]: Abstraction has 226097 states and 324535 transitions. [2024-12-02 13:11:30,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 10 states have internal predecessors, (120), 0 states have call successors, (0), 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 13:11:30,113 INFO L276 IsEmpty]: Start isEmpty. Operand 226097 states and 324535 transitions. [2024-12-02 13:11:30,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 13:11:30,118 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:11:30,118 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:11:30,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 13:11:30,118 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:11:30,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:11:30,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1397045798, now seen corresponding path program 1 times [2024-12-02 13:11:30,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:11:30,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576827045] [2024-12-02 13:11:30,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:11:30,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:11:30,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:11:30,201 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:11:30,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:11:30,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576827045] [2024-12-02 13:11:30,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576827045] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:11:30,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:11:30,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:11:30,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389303653] [2024-12-02 13:11:30,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:11:30,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:11:30,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:11:30,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:11:30,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:11:30,203 INFO L87 Difference]: Start difference. First operand 226097 states and 324535 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 13:11:33,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:11:33,613 INFO L93 Difference]: Finished difference Result 337973 states and 485049 transitions. [2024-12-02 13:11:33,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:11:33,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2024-12-02 13:11:33,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:11:33,729 INFO L225 Difference]: With dead ends: 337973 [2024-12-02 13:11:33,729 INFO L226 Difference]: Without dead ends: 114227 [2024-12-02 13:11:33,809 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 13:11:33,810 INFO L435 NwaCegarLoop]: 1663 mSDtfsCounter, 69 mSDsluCounter, 1583 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 3246 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 13:11:33,810 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 3246 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:11:33,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114227 states. [2024-12-02 13:11:36,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114227 to 114225. [2024-12-02 13:11:37,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114225 states, 114223 states have (on average 1.425343407194698) internal successors, (162807), 114224 states have internal predecessors, (162807), 0 states have call successors, (0), 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 13:11:37,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114225 states to 114225 states and 162807 transitions. [2024-12-02 13:11:37,195 INFO L78 Accepts]: Start accepts. Automaton has 114225 states and 162807 transitions. Word has length 122 [2024-12-02 13:11:37,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:11:37,195 INFO L471 AbstractCegarLoop]: Abstraction has 114225 states and 162807 transitions. [2024-12-02 13:11:37,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 13:11:37,196 INFO L276 IsEmpty]: Start isEmpty. Operand 114225 states and 162807 transitions. [2024-12-02 13:11:37,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 13:11:37,199 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:11:37,199 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:11:37,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 13:11:37,199 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:11:37,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:11:37,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1061877844, now seen corresponding path program 1 times [2024-12-02 13:11:37,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:11:37,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192063511] [2024-12-02 13:11:37,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:11:37,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:11:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:11:37,284 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:11:37,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:11:37,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192063511] [2024-12-02 13:11:37,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192063511] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:11:37,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:11:37,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:11:37,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491436352] [2024-12-02 13:11:37,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:11:37,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:11:37,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:11:37,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:11:37,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:11:37,286 INFO L87 Difference]: Start difference. First operand 114225 states and 162807 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 13:11:39,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:11:39,664 INFO L93 Difference]: Finished difference Result 170165 states and 242457 transitions. [2024-12-02 13:11:39,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:11:39,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-12-02 13:11:39,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:11:39,719 INFO L225 Difference]: With dead ends: 170165 [2024-12-02 13:11:39,719 INFO L226 Difference]: Without dead ends: 58291 [2024-12-02 13:11:39,764 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 13:11:39,764 INFO L435 NwaCegarLoop]: 1656 mSDtfsCounter, 66 mSDsluCounter, 1575 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 3231 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 13:11:39,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 3231 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:11:39,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58291 states. [2024-12-02 13:11:41,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58291 to 58289. [2024-12-02 13:11:41,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58289 states, 58287 states have (on average 1.4162849348911422) internal successors, (82551), 58288 states have internal predecessors, (82551), 0 states have call successors, (0), 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 13:11:41,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58289 states to 58289 states and 82551 transitions. [2024-12-02 13:11:41,450 INFO L78 Accepts]: Start accepts. Automaton has 58289 states and 82551 transitions. Word has length 124 [2024-12-02 13:11:41,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:11:41,450 INFO L471 AbstractCegarLoop]: Abstraction has 58289 states and 82551 transitions. [2024-12-02 13:11:41,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 13:11:41,450 INFO L276 IsEmpty]: Start isEmpty. Operand 58289 states and 82551 transitions. [2024-12-02 13:11:41,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 13:11:41,452 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:11:41,452 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:11:41,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 13:11:41,453 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:11:41,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:11:41,453 INFO L85 PathProgramCache]: Analyzing trace with hash -890972162, now seen corresponding path program 1 times [2024-12-02 13:11:41,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:11:41,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63417447] [2024-12-02 13:11:41,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:11:41,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:11:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:11:41,532 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:11:41,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:11:41,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63417447] [2024-12-02 13:11:41,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63417447] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:11:41,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:11:41,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:11:41,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216076707] [2024-12-02 13:11:41,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:11:41,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:11:41,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:11:41,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:11:41,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:11:41,533 INFO L87 Difference]: Start difference. First operand 58289 states and 82551 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 13:11:42,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:11:42,296 INFO L93 Difference]: Finished difference Result 86261 states and 122073 transitions. [2024-12-02 13:11:42,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:11:42,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-12-02 13:11:42,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:11:42,327 INFO L225 Difference]: With dead ends: 86261 [2024-12-02 13:11:42,327 INFO L226 Difference]: Without dead ends: 30323 [2024-12-02 13:11:42,351 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 13:11:42,351 INFO L435 NwaCegarLoop]: 1649 mSDtfsCounter, 63 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 3216 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 13:11:42,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 3216 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:11:42,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30323 states. [2024-12-02 13:11:43,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30323 to 30321. [2024-12-02 13:11:43,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30321 states, 30319 states have (on average 1.4092483261321285) internal successors, (42727), 30320 states have internal predecessors, (42727), 0 states have call successors, (0), 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 13:11:43,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30321 states to 30321 states and 42727 transitions. [2024-12-02 13:11:43,397 INFO L78 Accepts]: Start accepts. Automaton has 30321 states and 42727 transitions. Word has length 126 [2024-12-02 13:11:43,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:11:43,398 INFO L471 AbstractCegarLoop]: Abstraction has 30321 states and 42727 transitions. [2024-12-02 13:11:43,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 13:11:43,398 INFO L276 IsEmpty]: Start isEmpty. Operand 30321 states and 42727 transitions. [2024-12-02 13:11:43,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 13:11:43,399 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:11:43,400 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:11:43,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 13:11:43,400 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:11:43,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:11:43,400 INFO L85 PathProgramCache]: Analyzing trace with hash -627878192, now seen corresponding path program 1 times [2024-12-02 13:11:43,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:11:43,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865531682] [2024-12-02 13:11:43,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:11:43,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:11:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:11:43,506 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:11:43,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:11:43,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865531682] [2024-12-02 13:11:43,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865531682] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:11:43,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:11:43,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:11:43,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074625381] [2024-12-02 13:11:43,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:11:43,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:11:43,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:11:43,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:11:43,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:11:43,507 INFO L87 Difference]: Start difference. First operand 30321 states and 42727 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 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 13:11:44,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:11:44,047 INFO L93 Difference]: Finished difference Result 44309 states and 62337 transitions. [2024-12-02 13:11:44,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:11:44,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2024-12-02 13:11:44,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:11:44,065 INFO L225 Difference]: With dead ends: 44309 [2024-12-02 13:11:44,065 INFO L226 Difference]: Without dead ends: 16339 [2024-12-02 13:11:44,077 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 13:11:44,077 INFO L435 NwaCegarLoop]: 1642 mSDtfsCounter, 60 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3201 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 13:11:44,077 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 3201 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:11:44,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16339 states. [2024-12-02 13:11:44,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16339 to 16337. [2024-12-02 13:11:44,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16337 states, 16335 states have (on average 1.4059993878175696) internal successors, (22967), 16336 states have internal predecessors, (22967), 0 states have call successors, (0), 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 13:11:44,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16337 states to 16337 states and 22967 transitions. [2024-12-02 13:11:44,509 INFO L78 Accepts]: Start accepts. Automaton has 16337 states and 22967 transitions. Word has length 128 [2024-12-02 13:11:44,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:11:44,509 INFO L471 AbstractCegarLoop]: Abstraction has 16337 states and 22967 transitions. [2024-12-02 13:11:44,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 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 13:11:44,510 INFO L276 IsEmpty]: Start isEmpty. Operand 16337 states and 22967 transitions. [2024-12-02 13:11:44,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 13:11:44,511 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:11:44,511 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:11:44,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 13:11:44,511 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:11:44,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:11:44,511 INFO L85 PathProgramCache]: Analyzing trace with hash -823024606, now seen corresponding path program 1 times [2024-12-02 13:11:44,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:11:44,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547548202] [2024-12-02 13:11:44,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:11:44,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:11:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:11:44,584 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:11:44,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:11:44,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547548202] [2024-12-02 13:11:44,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547548202] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:11:44,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:11:44,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:11:44,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716798721] [2024-12-02 13:11:44,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:11:44,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:11:44,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:11:44,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:11:44,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:11:44,585 INFO L87 Difference]: Start difference. First operand 16337 states and 22967 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 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 13:11:44,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:11:44,783 INFO L93 Difference]: Finished difference Result 23333 states and 32697 transitions. [2024-12-02 13:11:44,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:11:44,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2024-12-02 13:11:44,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:11:44,802 INFO L225 Difference]: With dead ends: 23333 [2024-12-02 13:11:44,802 INFO L226 Difference]: Without dead ends: 9347 [2024-12-02 13:11:44,809 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 13:11:44,810 INFO L435 NwaCegarLoop]: 1635 mSDtfsCounter, 57 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 3186 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 13:11:44,810 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 3186 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:11:44,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9347 states. [2024-12-02 13:11:45,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9347 to 9345. [2024-12-02 13:11:45,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9345 states, 9343 states have (on average 1.408862249812694) internal successors, (13163), 9344 states have internal predecessors, (13163), 0 states have call successors, (0), 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 13:11:45,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9345 states to 9345 states and 13163 transitions. [2024-12-02 13:11:45,052 INFO L78 Accepts]: Start accepts. Automaton has 9345 states and 13163 transitions. Word has length 130 [2024-12-02 13:11:45,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:11:45,053 INFO L471 AbstractCegarLoop]: Abstraction has 9345 states and 13163 transitions. [2024-12-02 13:11:45,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 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 13:11:45,053 INFO L276 IsEmpty]: Start isEmpty. Operand 9345 states and 13163 transitions. [2024-12-02 13:11:45,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 13:11:45,054 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:11:45,054 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:11:45,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 13:11:45,054 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:11:45,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:11:45,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1457987596, now seen corresponding path program 1 times [2024-12-02 13:11:45,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:11:45,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946339855] [2024-12-02 13:11:45,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:11:45,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:11:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:11:45,130 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:11:45,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:11:45,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946339855] [2024-12-02 13:11:45,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946339855] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:11:45,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:11:45,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:11:45,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419515767] [2024-12-02 13:11:45,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:11:45,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:11:45,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:11:45,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:11:45,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:11:45,131 INFO L87 Difference]: Start difference. First operand 9345 states and 13163 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 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 13:11:45,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:11:45,256 INFO L93 Difference]: Finished difference Result 12845 states and 17991 transitions. [2024-12-02 13:11:45,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:11:45,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2024-12-02 13:11:45,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:11:45,266 INFO L225 Difference]: With dead ends: 12845 [2024-12-02 13:11:45,266 INFO L226 Difference]: Without dead ends: 5851 [2024-12-02 13:11:45,269 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 13:11:45,269 INFO L435 NwaCegarLoop]: 1628 mSDtfsCounter, 54 mSDsluCounter, 1543 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 3171 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 13:11:45,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 3171 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:11:45,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5851 states. [2024-12-02 13:11:45,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5851 to 5849. [2024-12-02 13:11:45,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5849 states, 5847 states have (on average 1.4193603557379852) internal successors, (8299), 5848 states have internal predecessors, (8299), 0 states have call successors, (0), 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 13:11:45,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5849 states to 5849 states and 8299 transitions. [2024-12-02 13:11:45,397 INFO L78 Accepts]: Start accepts. Automaton has 5849 states and 8299 transitions. Word has length 132 [2024-12-02 13:11:45,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:11:45,397 INFO L471 AbstractCegarLoop]: Abstraction has 5849 states and 8299 transitions. [2024-12-02 13:11:45,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 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 13:11:45,397 INFO L276 IsEmpty]: Start isEmpty. Operand 5849 states and 8299 transitions. [2024-12-02 13:11:45,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 13:11:45,398 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:11:45,398 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:11:45,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 13:11:45,398 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:11:45,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:11:45,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1577724486, now seen corresponding path program 1 times [2024-12-02 13:11:45,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:11:45,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186065062] [2024-12-02 13:11:45,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:11:45,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:11:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:11:45,471 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:11:45,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:11:45,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186065062] [2024-12-02 13:11:45,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186065062] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:11:45,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:11:45,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:11:45,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859988262] [2024-12-02 13:11:45,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:11:45,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:11:45,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:11:45,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:11:45,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:11:45,472 INFO L87 Difference]: Start difference. First operand 5849 states and 8299 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 13:11:45,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:11:45,552 INFO L93 Difference]: Finished difference Result 7601 states and 10695 transitions. [2024-12-02 13:11:45,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:11:45,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2024-12-02 13:11:45,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:11:45,562 INFO L225 Difference]: With dead ends: 7601 [2024-12-02 13:11:45,562 INFO L226 Difference]: Without dead ends: 4103 [2024-12-02 13:11:45,564 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 13:11:45,564 INFO L435 NwaCegarLoop]: 1621 mSDtfsCounter, 51 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 3156 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 13:11:45,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 3156 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:11:45,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4103 states. [2024-12-02 13:11:45,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4103 to 4101. [2024-12-02 13:11:45,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4101 states, 4099 states have (on average 1.4359599902415223) internal successors, (5886), 4100 states have internal predecessors, (5886), 0 states have call successors, (0), 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 13:11:45,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4101 states to 4101 states and 5886 transitions. [2024-12-02 13:11:45,641 INFO L78 Accepts]: Start accepts. Automaton has 4101 states and 5886 transitions. Word has length 134 [2024-12-02 13:11:45,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:11:45,641 INFO L471 AbstractCegarLoop]: Abstraction has 4101 states and 5886 transitions. [2024-12-02 13:11:45,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 13:11:45,641 INFO L276 IsEmpty]: Start isEmpty. Operand 4101 states and 5886 transitions. [2024-12-02 13:11:45,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 13:11:45,642 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:11:45,642 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:11:45,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 13:11:45,642 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:11:45,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:11:45,643 INFO L85 PathProgramCache]: Analyzing trace with hash 682533656, now seen corresponding path program 1 times [2024-12-02 13:11:45,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:11:45,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130912594] [2024-12-02 13:11:45,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:11:45,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:11:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:11:46,678 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:11:46,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:11:46,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130912594] [2024-12-02 13:11:46,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130912594] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:11:46,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679608764] [2024-12-02 13:11:46,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:11:46,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:11:46,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:11:46,681 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:11:46,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:11:46,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:11:46,897 INFO L256 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 13:11:46,903 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:11:47,217 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 13:11:47,217 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:11:47,582 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 13:11:47,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679608764] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:11:47,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:11:47,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 4] total 19 [2024-12-02 13:11:47,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020944454] [2024-12-02 13:11:47,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:11:47,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 13:11:47,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:11:47,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 13:11:47,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-12-02 13:11:47,584 INFO L87 Difference]: Start difference. First operand 4101 states and 5886 transitions. Second operand has 19 states, 19 states have (on average 20.57894736842105) internal successors, (391), 19 states have internal predecessors, (391), 0 states have call successors, (0), 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 13:11:51,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:11:51,531 INFO L93 Difference]: Finished difference Result 15936 states and 21689 transitions. [2024-12-02 13:11:51,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-12-02 13:11:51,531 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 20.57894736842105) internal successors, (391), 19 states have internal predecessors, (391), 0 states have call successors, (0), 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 136 [2024-12-02 13:11:51,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:11:51,547 INFO L225 Difference]: With dead ends: 15936 [2024-12-02 13:11:51,547 INFO L226 Difference]: Without dead ends: 14186 [2024-12-02 13:11:51,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1643 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=972, Invalid=4140, Unknown=0, NotChecked=0, Total=5112 [2024-12-02 13:11:51,552 INFO L435 NwaCegarLoop]: 1568 mSDtfsCounter, 22128 mSDsluCounter, 6963 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22128 SdHoareTripleChecker+Valid, 8531 SdHoareTripleChecker+Invalid, 1374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:11:51,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22128 Valid, 8531 Invalid, 1374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 13:11:51,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14186 states. [2024-12-02 13:11:51,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14186 to 13994. [2024-12-02 13:11:51,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13994 states, 13992 states have (on average 1.3319754145225844) internal successors, (18637), 13993 states have internal predecessors, (18637), 0 states have call successors, (0), 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 13:11:52,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13994 states to 13994 states and 18637 transitions. [2024-12-02 13:11:52,010 INFO L78 Accepts]: Start accepts. Automaton has 13994 states and 18637 transitions. Word has length 136 [2024-12-02 13:11:52,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:11:52,010 INFO L471 AbstractCegarLoop]: Abstraction has 13994 states and 18637 transitions. [2024-12-02 13:11:52,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 20.57894736842105) internal successors, (391), 19 states have internal predecessors, (391), 0 states have call successors, (0), 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 13:11:52,010 INFO L276 IsEmpty]: Start isEmpty. Operand 13994 states and 18637 transitions. [2024-12-02 13:11:52,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 13:11:52,011 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:11:52,011 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:11:52,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:11:52,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:11:52,211 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:11:52,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:11:52,212 INFO L85 PathProgramCache]: Analyzing trace with hash 2044250309, now seen corresponding path program 1 times [2024-12-02 13:11:52,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:11:52,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381120377] [2024-12-02 13:11:52,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:11:52,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:11:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:11:53,231 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:11:53,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:11:53,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381120377] [2024-12-02 13:11:53,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381120377] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:11:53,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086734333] [2024-12-02 13:11:53,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:11:53,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:11:53,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:11:53,234 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:11:53,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 13:11:53,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:11:53,433 INFO L256 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 13:11:53,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:11:54,005 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:11:54,006 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:11:55,204 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:11:55,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086734333] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:11:55,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:11:55,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-12-02 13:11:55,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039893966] [2024-12-02 13:11:55,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:11:55,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 13:11:55,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:11:55,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 13:11:55,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=665, Unknown=0, NotChecked=0, Total=756 [2024-12-02 13:11:55,206 INFO L87 Difference]: Start difference. First operand 13994 states and 18637 transitions. Second operand has 28 states, 28 states have (on average 13.392857142857142) internal successors, (375), 27 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:11:59,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:11:59,711 INFO L93 Difference]: Finished difference Result 59125 states and 78323 transitions. [2024-12-02 13:11:59,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-12-02 13:11:59,712 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 13.392857142857142) internal successors, (375), 27 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2024-12-02 13:11:59,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:11:59,749 INFO L225 Difference]: With dead ends: 59125 [2024-12-02 13:11:59,749 INFO L226 Difference]: Without dead ends: 47765 [2024-12-02 13:11:59,761 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1017 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=836, Invalid=3720, Unknown=0, NotChecked=0, Total=4556 [2024-12-02 13:11:59,761 INFO L435 NwaCegarLoop]: 1554 mSDtfsCounter, 21822 mSDsluCounter, 8713 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21822 SdHoareTripleChecker+Valid, 10267 SdHoareTripleChecker+Invalid, 1492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:11:59,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21822 Valid, 10267 Invalid, 1492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 13:11:59,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47765 states. [2024-12-02 13:12:01,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47765 to 41437. [2024-12-02 13:12:01,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41437 states, 41435 states have (on average 1.3173404126945818) internal successors, (54584), 41436 states have internal predecessors, (54584), 0 states have call successors, (0), 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 13:12:01,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41437 states to 41437 states and 54584 transitions. [2024-12-02 13:12:01,138 INFO L78 Accepts]: Start accepts. Automaton has 41437 states and 54584 transitions. Word has length 137 [2024-12-02 13:12:01,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:12:01,138 INFO L471 AbstractCegarLoop]: Abstraction has 41437 states and 54584 transitions. [2024-12-02 13:12:01,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 13.392857142857142) internal successors, (375), 27 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:12:01,138 INFO L276 IsEmpty]: Start isEmpty. Operand 41437 states and 54584 transitions. [2024-12-02 13:12:01,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 13:12:01,140 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:12:01,140 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:12:01,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 13:12:01,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:12:01,340 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:12:01,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:12:01,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1328150331, now seen corresponding path program 1 times [2024-12-02 13:12:01,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:12:01,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78083066] [2024-12-02 13:12:01,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:12:01,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:12:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:12:02,123 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:12:02,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:12:02,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78083066] [2024-12-02 13:12:02,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78083066] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:12:02,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504529513] [2024-12-02 13:12:02,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:12:02,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:12:02,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:12:02,125 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:12:02,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 13:12:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:12:02,313 INFO L256 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 13:12:02,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:12:02,811 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:12:02,811 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:12:03,712 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:12:03,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504529513] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:12:03,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:12:03,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-12-02 13:12:03,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752748414] [2024-12-02 13:12:03,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:12:03,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 13:12:03,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:12:03,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 13:12:03,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2024-12-02 13:12:03,714 INFO L87 Difference]: Start difference. First operand 41437 states and 54584 transitions. Second operand has 28 states, 28 states have (on average 13.321428571428571) internal successors, (373), 27 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:12:11,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:12:11,491 INFO L93 Difference]: Finished difference Result 230733 states and 306114 transitions. [2024-12-02 13:12:11,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-12-02 13:12:11,492 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 13.321428571428571) internal successors, (373), 27 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2024-12-02 13:12:11,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:12:11,638 INFO L225 Difference]: With dead ends: 230733 [2024-12-02 13:12:11,638 INFO L226 Difference]: Without dead ends: 191881 [2024-12-02 13:12:11,668 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 257 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 906 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=846, Invalid=3444, Unknown=0, NotChecked=0, Total=4290 [2024-12-02 13:12:11,669 INFO L435 NwaCegarLoop]: 1588 mSDtfsCounter, 24575 mSDsluCounter, 7803 mSDsCounter, 0 mSdLazyCounter, 1816 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24575 SdHoareTripleChecker+Valid, 9391 SdHoareTripleChecker+Invalid, 1856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:12:11,669 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24575 Valid, 9391 Invalid, 1856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1816 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 13:12:11,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191881 states. [2024-12-02 13:12:17,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191881 to 189853. [2024-12-02 13:12:17,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189853 states, 189851 states have (on average 1.3035591068785521) internal successors, (247482), 189852 states have internal predecessors, (247482), 0 states have call successors, (0), 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 13:12:17,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189853 states to 189853 states and 247482 transitions. [2024-12-02 13:12:17,914 INFO L78 Accepts]: Start accepts. Automaton has 189853 states and 247482 transitions. Word has length 137 [2024-12-02 13:12:17,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:12:17,915 INFO L471 AbstractCegarLoop]: Abstraction has 189853 states and 247482 transitions. [2024-12-02 13:12:17,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 13.321428571428571) internal successors, (373), 27 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:12:17,915 INFO L276 IsEmpty]: Start isEmpty. Operand 189853 states and 247482 transitions. [2024-12-02 13:12:17,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 13:12:17,919 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:12:17,919 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:12:17,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 13:12:18,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:12:18,120 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:12:18,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:12:18,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1504891853, now seen corresponding path program 1 times [2024-12-02 13:12:18,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:12:18,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147998804] [2024-12-02 13:12:18,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:12:18,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:12:18,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:12:18,298 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:12:18,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:12:18,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147998804] [2024-12-02 13:12:18,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147998804] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:12:18,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:12:18,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:12:18,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155922390] [2024-12-02 13:12:18,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:12:18,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:12:18,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:12:18,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:12:18,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:12:18,300 INFO L87 Difference]: Start difference. First operand 189853 states and 247482 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 13:12:27,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:12:27,084 INFO L93 Difference]: Finished difference Result 193647 states and 253587 transitions. [2024-12-02 13:12:27,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:12:27,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2024-12-02 13:12:27,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:12:27,244 INFO L225 Difference]: With dead ends: 193647 [2024-12-02 13:12:27,244 INFO L226 Difference]: Without dead ends: 191355 [2024-12-02 13:12:27,274 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 13:12:27,275 INFO L435 NwaCegarLoop]: 860 mSDtfsCounter, 869 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 3107 mSolverCounterSat, 729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 1041 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 13:12:27,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 1041 Invalid, 3836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [729 Valid, 3107 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-12-02 13:12:27,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191355 states. [2024-12-02 13:12:32,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191355 to 191355. [2024-12-02 13:12:33,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191355 states, 191353 states have (on average 1.3016101132461995) internal successors, (249067), 191354 states have internal predecessors, (249067), 0 states have call successors, (0), 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 13:12:33,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191355 states to 191355 states and 249067 transitions. [2024-12-02 13:12:33,260 INFO L78 Accepts]: Start accepts. Automaton has 191355 states and 249067 transitions. Word has length 138 [2024-12-02 13:12:33,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:12:33,260 INFO L471 AbstractCegarLoop]: Abstraction has 191355 states and 249067 transitions. [2024-12-02 13:12:33,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 13:12:33,260 INFO L276 IsEmpty]: Start isEmpty. Operand 191355 states and 249067 transitions. [2024-12-02 13:12:33,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 13:12:33,263 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:12:33,263 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:12:33,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 13:12:33,263 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:12:33,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:12:33,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1123606741, now seen corresponding path program 1 times [2024-12-02 13:12:33,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:12:33,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876378057] [2024-12-02 13:12:33,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:12:33,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:12:33,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:12:34,132 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:12:34,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:12:34,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876378057] [2024-12-02 13:12:34,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876378057] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:12:34,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926429472] [2024-12-02 13:12:34,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:12:34,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:12:34,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:12:34,134 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:12:34,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee512db2-6c1b-4a2c-982a-a5c2eeaf8080/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 13:12:34,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:12:34,315 INFO L256 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 13:12:34,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:12:34,790 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:12:34,790 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:12:36,309 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:12:36,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926429472] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:12:36,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:12:36,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 28 [2024-12-02 13:12:36,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885580171] [2024-12-02 13:12:36,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:12:36,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-12-02 13:12:36,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:12:36,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-12-02 13:12:36,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2024-12-02 13:12:36,311 INFO L87 Difference]: Start difference. First operand 191355 states and 249067 transitions. Second operand has 29 states, 29 states have (on average 12.03448275862069) internal successors, (349), 28 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)