./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.1.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8924ec-30a0-4dda-af93-0f4bccb84c45/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8924ec-30a0-4dda-af93-0f4bccb84c45/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8924ec-30a0-4dda-af93-0f4bccb84c45/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8924ec-30a0-4dda-af93-0f4bccb84c45/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.1.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8924ec-30a0-4dda-af93-0f4bccb84c45/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8924ec-30a0-4dda-af93-0f4bccb84c45/bin/uautomizer-verify-4GaUIPS5ZU --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 75ad91d1ba346b49105baf3c8411bd3b92e43cc8020f63db454a4318afdf99c1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:18:29,241 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:18:29,341 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8924ec-30a0-4dda-af93-0f4bccb84c45/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:18:29,347 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:18:29,347 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:18:29,387 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:18:29,387 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:18:29,388 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:18:29,388 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:18:29,391 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:18:29,391 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:18:29,391 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:18:29,392 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:18:29,394 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:18:29,395 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:18:29,395 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:18:29,395 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:18:29,399 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:18:29,400 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:18:29,400 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:18:29,400 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:18:29,401 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:18:29,401 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:18:29,401 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:18:29,402 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:18:29,402 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:18:29,402 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:18:29,402 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:18:29,403 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:18:29,403 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:18:29,403 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:18:29,403 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:18:29,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:18:29,404 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:18:29,404 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:18:29,404 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:18:29,407 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:18:29,408 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:18:29,408 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:18:29,408 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:18:29,408 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:18:29,409 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:18:29,409 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8924ec-30a0-4dda-af93-0f4bccb84c45/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8924ec-30a0-4dda-af93-0f4bccb84c45/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75ad91d1ba346b49105baf3c8411bd3b92e43cc8020f63db454a4318afdf99c1 [2024-10-31 22:18:29,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:18:29,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:18:29,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:18:29,811 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:18:29,813 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:18:29,814 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8924ec-30a0-4dda-af93-0f4bccb84c45/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.1.ufo.UNBOUNDED.pals.c Unable to find full path for "g++" [2024-10-31 22:18:31,967 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:18:32,277 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:18:32,280 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8924ec-30a0-4dda-af93-0f4bccb84c45/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.1.ufo.UNBOUNDED.pals.c [2024-10-31 22:18:32,300 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8924ec-30a0-4dda-af93-0f4bccb84c45/bin/uautomizer-verify-4GaUIPS5ZU/data/2ab024cc4/83060cd267cc451eabe74be7eaed39a8/FLAGd6922c36c [2024-10-31 22:18:32,542 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8924ec-30a0-4dda-af93-0f4bccb84c45/bin/uautomizer-verify-4GaUIPS5ZU/data/2ab024cc4/83060cd267cc451eabe74be7eaed39a8 [2024-10-31 22:18:32,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:18:32,546 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:18:32,547 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:18:32,547 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:18:32,554 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:18:32,555 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:18:32" (1/1) ... [2024-10-31 22:18:32,556 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b12e53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:32, skipping insertion in model container [2024-10-31 22:18:32,556 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:18:32" (1/1) ... [2024-10-31 22:18:32,621 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:18:33,054 WARN L251 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_8d8924ec-30a0-4dda-af93-0f4bccb84c45/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.1.ufo.UNBOUNDED.pals.c[24372,24385] [2024-10-31 22:18:33,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:18:33,084 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:18:33,209 WARN L251 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_8d8924ec-30a0-4dda-af93-0f4bccb84c45/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.1.ufo.UNBOUNDED.pals.c[24372,24385] [2024-10-31 22:18:33,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:18:33,232 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:18:33,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:33 WrapperNode [2024-10-31 22:18:33,233 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:18:33,234 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:18:33,235 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:18:33,235 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:18:33,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:33" (1/1) ... [2024-10-31 22:18:33,266 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:33" (1/1) ... [2024-10-31 22:18:33,336 INFO L138 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 935 [2024-10-31 22:18:33,337 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:18:33,338 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:18:33,339 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:18:33,339 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:18:33,356 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:33" (1/1) ... [2024-10-31 22:18:33,357 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:33" (1/1) ... [2024-10-31 22:18:33,361 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:33" (1/1) ... [2024-10-31 22:18:33,404 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]. [2024-10-31 22:18:33,405 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:33" (1/1) ... [2024-10-31 22:18:33,405 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:33" (1/1) ... [2024-10-31 22:18:33,428 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:33" (1/1) ... [2024-10-31 22:18:33,439 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:33" (1/1) ... [2024-10-31 22:18:33,443 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:33" (1/1) ... [2024-10-31 22:18:33,446 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:33" (1/1) ... [2024-10-31 22:18:33,453 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:18:33,454 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:18:33,454 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:18:33,454 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:18:33,455 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:33" (1/1) ... [2024-10-31 22:18:33,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:18:33,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8924ec-30a0-4dda-af93-0f4bccb84c45/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:33,496 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8924ec-30a0-4dda-af93-0f4bccb84c45/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:33,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8924ec-30a0-4dda-af93-0f4bccb84c45/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:18:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:18:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:18:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:18:33,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:18:33,737 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:18:33,739 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:18:35,212 INFO L? ?]: Removed 99 outVars from TransFormulas that were not future-live. [2024-10-31 22:18:35,213 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:18:35,240 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:18:35,241 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:18:35,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:18:35 BoogieIcfgContainer [2024-10-31 22:18:35,241 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:18:35,244 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:18:35,244 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:18:35,248 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:18:35,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:18:32" (1/3) ... [2024-10-31 22:18:35,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c64d04b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:18:35, skipping insertion in model container [2024-10-31 22:18:35,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:33" (2/3) ... [2024-10-31 22:18:35,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c64d04b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:18:35, skipping insertion in model container [2024-10-31 22:18:35,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:18:35" (3/3) ... [2024-10-31 22:18:35,252 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.1.ufo.UNBOUNDED.pals.c [2024-10-31 22:18:35,272 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:18:35,272 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:18:35,390 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:18:35,398 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;@6c82a173, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:18:35,398 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:18:35,405 INFO L276 IsEmpty]: Start isEmpty. Operand has 276 states, 274 states have (on average 1.8175182481751824) internal successors, (498), 275 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:35,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-31 22:18:35,426 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:18:35,426 INFO L215 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] [2024-10-31 22:18:35,430 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:18:35,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:35,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1010952652, now seen corresponding path program 1 times [2024-10-31 22:18:35,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:35,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070284602] [2024-10-31 22:18:35,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:35,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:36,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:36,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:36,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070284602] [2024-10-31 22:18:36,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070284602] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:36,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:36,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:18:36,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610483795] [2024-10-31 22:18:36,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:36,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:18:36,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:36,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:18:36,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:18:36,174 INFO L87 Difference]: Start difference. First operand has 276 states, 274 states have (on average 1.8175182481751824) internal successors, (498), 275 states have internal predecessors, (498), 0 states have call successors, (0), 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 38.5) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:36,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:18:36,227 INFO L93 Difference]: Finished difference Result 369 states and 663 transitions. [2024-10-31 22:18:36,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:18:36,233 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-10-31 22:18:36,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:18:36,251 INFO L225 Difference]: With dead ends: 369 [2024-10-31 22:18:36,251 INFO L226 Difference]: Without dead ends: 272 [2024-10-31 22:18:36,254 INFO L431 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 [2024-10-31 22:18:36,259 INFO L432 NwaCegarLoop]: 491 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, 491 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 [2024-10-31 22:18:36,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:18:36,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-10-31 22:18:36,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2024-10-31 22:18:36,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 271 states have (on average 1.811808118081181) internal successors, (491), 271 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:36,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 491 transitions. [2024-10-31 22:18:36,323 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 491 transitions. Word has length 77 [2024-10-31 22:18:36,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:18:36,328 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 491 transitions. [2024-10-31 22:18:36,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:36,328 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 491 transitions. [2024-10-31 22:18:36,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-31 22:18:36,336 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:18:36,336 INFO L215 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] [2024-10-31 22:18:36,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:18:36,337 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:18:36,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:36,338 INFO L85 PathProgramCache]: Analyzing trace with hash 876939146, now seen corresponding path program 1 times [2024-10-31 22:18:36,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:36,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486257739] [2024-10-31 22:18:36,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:36,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:36,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:36,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:36,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486257739] [2024-10-31 22:18:36,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486257739] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:36,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:36,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:18:36,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375200419] [2024-10-31 22:18:36,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:36,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:18:36,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:36,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:18:36,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:18:36,857 INFO L87 Difference]: Start difference. First operand 272 states and 491 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:36,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:18:36,989 INFO L93 Difference]: Finished difference Result 368 states and 656 transitions. [2024-10-31 22:18:36,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:18:36,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-10-31 22:18:36,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:18:36,992 INFO L225 Difference]: With dead ends: 368 [2024-10-31 22:18:36,993 INFO L226 Difference]: Without dead ends: 272 [2024-10-31 22:18:36,993 INFO L431 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 [2024-10-31 22:18:36,995 INFO L432 NwaCegarLoop]: 489 mSDtfsCounter, 0 mSDsluCounter, 1432 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1921 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:18:36,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1921 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:18:36,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-10-31 22:18:37,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2024-10-31 22:18:37,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 271 states have (on average 1.7011070110701108) internal successors, (461), 271 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:37,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 461 transitions. [2024-10-31 22:18:37,012 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 461 transitions. Word has length 77 [2024-10-31 22:18:37,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:18:37,013 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 461 transitions. [2024-10-31 22:18:37,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:37,014 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 461 transitions. [2024-10-31 22:18:37,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-31 22:18:37,017 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:18:37,017 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:37,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:18:37,018 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:18:37,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:37,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1743510008, now seen corresponding path program 1 times [2024-10-31 22:18:37,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:37,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842229720] [2024-10-31 22:18:37,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:37,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:37,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:37,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:37,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:37,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842229720] [2024-10-31 22:18:37,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842229720] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:37,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:37,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:18:37,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715480660] [2024-10-31 22:18:37,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:37,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:37,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:37,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:37,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:37,390 INFO L87 Difference]: Start difference. First operand 272 states and 461 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 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) [2024-10-31 22:18:37,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:18:37,472 INFO L93 Difference]: Finished difference Result 445 states and 762 transitions. [2024-10-31 22:18:37,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:37,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 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 106 [2024-10-31 22:18:37,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:18:37,477 INFO L225 Difference]: With dead ends: 445 [2024-10-31 22:18:37,477 INFO L226 Difference]: Without dead ends: 353 [2024-10-31 22:18:37,480 INFO L431 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 [2024-10-31 22:18:37,481 INFO L432 NwaCegarLoop]: 454 mSDtfsCounter, 131 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:18:37,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 874 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:18:37,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-10-31 22:18:37,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 350. [2024-10-31 22:18:37,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 349 states have (on average 1.6991404011461317) internal successors, (593), 349 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:37,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 593 transitions. [2024-10-31 22:18:37,501 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 593 transitions. Word has length 106 [2024-10-31 22:18:37,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:18:37,502 INFO L471 AbstractCegarLoop]: Abstraction has 350 states and 593 transitions. [2024-10-31 22:18:37,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 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) [2024-10-31 22:18:37,502 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 593 transitions. [2024-10-31 22:18:37,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-31 22:18:37,509 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:18:37,509 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:37,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:18:37,510 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:18:37,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:37,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1465677818, now seen corresponding path program 1 times [2024-10-31 22:18:37,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:37,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670817545] [2024-10-31 22:18:37,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:37,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:37,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:37,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:37,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:37,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670817545] [2024-10-31 22:18:37,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670817545] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:37,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:37,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:18:37,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4683070] [2024-10-31 22:18:37,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:37,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:37,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:37,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:37,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:37,867 INFO L87 Difference]: Start difference. First operand 350 states and 593 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:37,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:18:37,917 INFO L93 Difference]: Finished difference Result 672 states and 1145 transitions. [2024-10-31 22:18:37,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:37,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-10-31 22:18:37,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:18:37,921 INFO L225 Difference]: With dead ends: 672 [2024-10-31 22:18:37,921 INFO L226 Difference]: Without dead ends: 502 [2024-10-31 22:18:37,925 INFO L431 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 [2024-10-31 22:18:37,926 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 132 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:18:37,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 887 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:18:37,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-10-31 22:18:37,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 498. [2024-10-31 22:18:37,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 497 states have (on average 1.7002012072434607) internal successors, (845), 497 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:37,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 845 transitions. [2024-10-31 22:18:37,964 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 845 transitions. Word has length 109 [2024-10-31 22:18:37,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:18:37,965 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 845 transitions. [2024-10-31 22:18:37,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:37,966 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 845 transitions. [2024-10-31 22:18:37,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-31 22:18:37,968 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:18:37,968 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:37,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:18:37,969 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:18:37,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:37,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1921647005, now seen corresponding path program 1 times [2024-10-31 22:18:37,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:37,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525068974] [2024-10-31 22:18:37,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:37,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:38,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:38,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:38,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525068974] [2024-10-31 22:18:38,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525068974] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:38,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:38,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:18:38,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541749161] [2024-10-31 22:18:38,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:38,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:38,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:38,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:38,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:38,261 INFO L87 Difference]: Start difference. First operand 498 states and 845 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 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) [2024-10-31 22:18:38,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:18:38,344 INFO L93 Difference]: Finished difference Result 1098 states and 1867 transitions. [2024-10-31 22:18:38,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:38,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 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 112 [2024-10-31 22:18:38,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:18:38,349 INFO L225 Difference]: With dead ends: 1098 [2024-10-31 22:18:38,350 INFO L226 Difference]: Without dead ends: 780 [2024-10-31 22:18:38,351 INFO L431 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 [2024-10-31 22:18:38,352 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 125 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:18:38,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 888 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:18:38,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2024-10-31 22:18:38,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 774. [2024-10-31 22:18:38,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 773 states have (on average 1.6934023285899094) internal successors, (1309), 773 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:38,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1309 transitions. [2024-10-31 22:18:38,402 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1309 transitions. Word has length 112 [2024-10-31 22:18:38,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:18:38,403 INFO L471 AbstractCegarLoop]: Abstraction has 774 states and 1309 transitions. [2024-10-31 22:18:38,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 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) [2024-10-31 22:18:38,404 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1309 transitions. [2024-10-31 22:18:38,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-31 22:18:38,405 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:18:38,406 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:38,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:18:38,406 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:18:38,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:38,407 INFO L85 PathProgramCache]: Analyzing trace with hash -521371213, now seen corresponding path program 1 times [2024-10-31 22:18:38,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:38,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662717413] [2024-10-31 22:18:38,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:38,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:38,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:38,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:38,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662717413] [2024-10-31 22:18:38,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662717413] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:38,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:38,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:18:38,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536518374] [2024-10-31 22:18:38,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:38,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:38,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:38,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:38,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:38,694 INFO L87 Difference]: Start difference. First operand 774 states and 1309 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:38,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:18:38,762 INFO L93 Difference]: Finished difference Result 1890 states and 3191 transitions. [2024-10-31 22:18:38,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:38,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2024-10-31 22:18:38,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:18:38,774 INFO L225 Difference]: With dead ends: 1890 [2024-10-31 22:18:38,775 INFO L226 Difference]: Without dead ends: 1296 [2024-10-31 22:18:38,776 INFO L431 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 [2024-10-31 22:18:38,781 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 118 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:18:38,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 889 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:18:38,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2024-10-31 22:18:38,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1286. [2024-10-31 22:18:38,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1285 states have (on average 1.6785992217898833) internal successors, (2157), 1285 states have internal predecessors, (2157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:38,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 2157 transitions. [2024-10-31 22:18:38,860 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 2157 transitions. Word has length 115 [2024-10-31 22:18:38,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:18:38,861 INFO L471 AbstractCegarLoop]: Abstraction has 1286 states and 2157 transitions. [2024-10-31 22:18:38,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:38,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 2157 transitions. [2024-10-31 22:18:38,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-31 22:18:38,863 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:18:38,863 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:38,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:18:38,868 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:18:38,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:38,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1872636352, now seen corresponding path program 1 times [2024-10-31 22:18:38,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:38,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913900122] [2024-10-31 22:18:38,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:38,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:39,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:39,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:39,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913900122] [2024-10-31 22:18:39,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913900122] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:39,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:39,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:18:39,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791357444] [2024-10-31 22:18:39,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:39,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:18:39,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:39,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:18:39,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:18:39,275 INFO L87 Difference]: Start difference. First operand 1286 states and 2157 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:39,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:18:39,730 INFO L93 Difference]: Finished difference Result 6518 states and 11081 transitions. [2024-10-31 22:18:39,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:18:39,730 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2024-10-31 22:18:39,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:18:39,750 INFO L225 Difference]: With dead ends: 6518 [2024-10-31 22:18:39,750 INFO L226 Difference]: Without dead ends: 5412 [2024-10-31 22:18:39,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:18:39,755 INFO L432 NwaCegarLoop]: 456 mSDtfsCounter, 1435 mSDsluCounter, 2871 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 3327 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:18:39,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1435 Valid, 3327 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:18:39,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5412 states. [2024-10-31 22:18:39,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5412 to 2314. [2024-10-31 22:18:39,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 2313 states have (on average 1.6783398184176395) internal successors, (3882), 2313 states have internal predecessors, (3882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:39,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 3882 transitions. [2024-10-31 22:18:39,862 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 3882 transitions. Word has length 118 [2024-10-31 22:18:39,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:18:39,863 INFO L471 AbstractCegarLoop]: Abstraction has 2314 states and 3882 transitions. [2024-10-31 22:18:39,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:39,864 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 3882 transitions. [2024-10-31 22:18:39,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-31 22:18:39,866 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:18:39,866 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:39,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:18:39,866 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:18:39,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:39,867 INFO L85 PathProgramCache]: Analyzing trace with hash 122545271, now seen corresponding path program 1 times [2024-10-31 22:18:39,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:39,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687892145] [2024-10-31 22:18:39,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:39,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:40,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:40,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:40,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687892145] [2024-10-31 22:18:40,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687892145] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:40,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:40,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:18:40,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90538488] [2024-10-31 22:18:40,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:40,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:18:40,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:40,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:18:40,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:18:40,166 INFO L87 Difference]: Start difference. First operand 2314 states and 3882 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:40,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:18:40,344 INFO L93 Difference]: Finished difference Result 6732 states and 11394 transitions. [2024-10-31 22:18:40,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:18:40,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 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 [2024-10-31 22:18:40,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:18:40,360 INFO L225 Difference]: With dead ends: 6732 [2024-10-31 22:18:40,360 INFO L226 Difference]: Without dead ends: 4598 [2024-10-31 22:18:40,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:18:40,364 INFO L432 NwaCegarLoop]: 453 mSDtfsCounter, 459 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:18:40,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 1466 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:18:40,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4598 states. [2024-10-31 22:18:40,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4598 to 3439. [2024-10-31 22:18:40,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3439 states, 3438 states have (on average 1.6829552065154159) internal successors, (5786), 3438 states have internal predecessors, (5786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:40,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3439 states to 3439 states and 5786 transitions. [2024-10-31 22:18:40,522 INFO L78 Accepts]: Start accepts. Automaton has 3439 states and 5786 transitions. Word has length 119 [2024-10-31 22:18:40,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:18:40,522 INFO L471 AbstractCegarLoop]: Abstraction has 3439 states and 5786 transitions. [2024-10-31 22:18:40,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:40,523 INFO L276 IsEmpty]: Start isEmpty. Operand 3439 states and 5786 transitions. [2024-10-31 22:18:40,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-31 22:18:40,528 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:18:40,529 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:40,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:18:40,529 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:18:40,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:40,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1873300951, now seen corresponding path program 1 times [2024-10-31 22:18:40,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:40,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313602258] [2024-10-31 22:18:40,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:40,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:40,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:40,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:40,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313602258] [2024-10-31 22:18:40,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313602258] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:40,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:40,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:18:40,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318254481] [2024-10-31 22:18:40,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:40,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:18:40,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:40,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:18:40,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:18:40,831 INFO L87 Difference]: Start difference. First operand 3439 states and 5786 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 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) [2024-10-31 22:18:41,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:18:41,075 INFO L93 Difference]: Finished difference Result 10056 states and 16996 transitions. [2024-10-31 22:18:41,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:18:41,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 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 120 [2024-10-31 22:18:41,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:18:41,099 INFO L225 Difference]: With dead ends: 10056 [2024-10-31 22:18:41,099 INFO L226 Difference]: Without dead ends: 6797 [2024-10-31 22:18:41,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:18:41,105 INFO L432 NwaCegarLoop]: 463 mSDtfsCounter, 457 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 1478 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:18:41,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 1478 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:18:41,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6797 states. [2024-10-31 22:18:41,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6797 to 5094. [2024-10-31 22:18:41,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5094 states, 5093 states have (on average 1.680541920282741) internal successors, (8559), 5093 states have internal predecessors, (8559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:41,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5094 states to 5094 states and 8559 transitions. [2024-10-31 22:18:41,328 INFO L78 Accepts]: Start accepts. Automaton has 5094 states and 8559 transitions. Word has length 120 [2024-10-31 22:18:41,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:18:41,329 INFO L471 AbstractCegarLoop]: Abstraction has 5094 states and 8559 transitions. [2024-10-31 22:18:41,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 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) [2024-10-31 22:18:41,330 INFO L276 IsEmpty]: Start isEmpty. Operand 5094 states and 8559 transitions. [2024-10-31 22:18:41,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-31 22:18:41,333 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:18:41,333 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:41,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:18:41,334 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:18:41,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:41,335 INFO L85 PathProgramCache]: Analyzing trace with hash -301416588, now seen corresponding path program 1 times [2024-10-31 22:18:41,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:41,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631375291] [2024-10-31 22:18:41,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:41,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:41,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:41,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:41,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:41,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631375291] [2024-10-31 22:18:41,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631375291] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:41,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:41,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:18:41,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592501220] [2024-10-31 22:18:41,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:41,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:41,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:41,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:41,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:41,492 INFO L87 Difference]: Start difference. First operand 5094 states and 8559 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) [2024-10-31 22:18:41,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:18:41,637 INFO L93 Difference]: Finished difference Result 11326 states and 19037 transitions. [2024-10-31 22:18:41,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:41,638 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 [2024-10-31 22:18:41,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:18:41,664 INFO L225 Difference]: With dead ends: 11326 [2024-10-31 22:18:41,664 INFO L226 Difference]: Without dead ends: 7865 [2024-10-31 22:18:41,669 INFO L431 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 [2024-10-31 22:18:41,670 INFO L432 NwaCegarLoop]: 558 mSDtfsCounter, 131 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:18:41,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 998 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:18:41,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7865 states. [2024-10-31 22:18:41,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7865 to 7863. [2024-10-31 22:18:41,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7863 states, 7862 states have (on average 1.6690409564996185) internal successors, (13122), 7862 states have internal predecessors, (13122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:41,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7863 states to 7863 states and 13122 transitions. [2024-10-31 22:18:41,930 INFO L78 Accepts]: Start accepts. Automaton has 7863 states and 13122 transitions. Word has length 121 [2024-10-31 22:18:41,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:18:41,930 INFO L471 AbstractCegarLoop]: Abstraction has 7863 states and 13122 transitions. [2024-10-31 22:18:41,931 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) [2024-10-31 22:18:41,931 INFO L276 IsEmpty]: Start isEmpty. Operand 7863 states and 13122 transitions. [2024-10-31 22:18:41,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-31 22:18:41,933 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:18:41,933 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:41,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:18:41,934 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:18:41,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:41,934 INFO L85 PathProgramCache]: Analyzing trace with hash 481156526, now seen corresponding path program 1 times [2024-10-31 22:18:41,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:41,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933589488] [2024-10-31 22:18:41,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:41,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:42,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:42,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:42,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933589488] [2024-10-31 22:18:42,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933589488] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:42,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:42,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:18:42,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326138499] [2024-10-31 22:18:42,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:42,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:18:42,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:42,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:18:42,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:18:42,187 INFO L87 Difference]: Start difference. First operand 7863 states and 13122 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 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) [2024-10-31 22:18:42,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:18:42,490 INFO L93 Difference]: Finished difference Result 23340 states and 39148 transitions. [2024-10-31 22:18:42,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:18:42,491 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 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 [2024-10-31 22:18:42,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:18:42,529 INFO L225 Difference]: With dead ends: 23340 [2024-10-31 22:18:42,529 INFO L226 Difference]: Without dead ends: 15685 [2024-10-31 22:18:42,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:18:42,541 INFO L432 NwaCegarLoop]: 451 mSDtfsCounter, 455 mSDsluCounter, 972 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:18:42,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 1423 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:18:42,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15685 states. [2024-10-31 22:18:42,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15685 to 11718. [2024-10-31 22:18:43,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11718 states, 11717 states have (on average 1.6665528718955365) internal successors, (19527), 11717 states have internal predecessors, (19527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:43,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11718 states to 11718 states and 19527 transitions. [2024-10-31 22:18:43,059 INFO L78 Accepts]: Start accepts. Automaton has 11718 states and 19527 transitions. Word has length 121 [2024-10-31 22:18:43,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:18:43,059 INFO L471 AbstractCegarLoop]: Abstraction has 11718 states and 19527 transitions. [2024-10-31 22:18:43,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 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) [2024-10-31 22:18:43,064 INFO L276 IsEmpty]: Start isEmpty. Operand 11718 states and 19527 transitions. [2024-10-31 22:18:43,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-31 22:18:43,070 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:18:43,071 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:43,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:18:43,071 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:18:43,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:43,072 INFO L85 PathProgramCache]: Analyzing trace with hash -415699120, now seen corresponding path program 1 times [2024-10-31 22:18:43,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:43,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728168946] [2024-10-31 22:18:43,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:43,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:43,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:43,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:43,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:43,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728168946] [2024-10-31 22:18:43,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728168946] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:43,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:43,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:18:43,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23209546] [2024-10-31 22:18:43,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:43,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:43,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:43,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:43,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:43,311 INFO L87 Difference]: Start difference. First operand 11718 states and 19527 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) [2024-10-31 22:18:43,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:18:43,627 INFO L93 Difference]: Finished difference Result 23514 states and 39213 transitions. [2024-10-31 22:18:43,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:43,628 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 [2024-10-31 22:18:43,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:18:43,670 INFO L225 Difference]: With dead ends: 23514 [2024-10-31 22:18:43,671 INFO L226 Difference]: Without dead ends: 16952 [2024-10-31 22:18:43,682 INFO L431 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 [2024-10-31 22:18:43,683 INFO L432 NwaCegarLoop]: 519 mSDtfsCounter, 117 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:18:43,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 961 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:18:43,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16952 states. [2024-10-31 22:18:44,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16952 to 16950. [2024-10-31 22:18:44,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16950 states, 16949 states have (on average 1.6551418962770665) internal successors, (28053), 16949 states have internal predecessors, (28053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:44,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16950 states to 16950 states and 28053 transitions. [2024-10-31 22:18:44,247 INFO L78 Accepts]: Start accepts. Automaton has 16950 states and 28053 transitions. Word has length 121 [2024-10-31 22:18:44,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:18:44,248 INFO L471 AbstractCegarLoop]: Abstraction has 16950 states and 28053 transitions. [2024-10-31 22:18:44,248 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) [2024-10-31 22:18:44,248 INFO L276 IsEmpty]: Start isEmpty. Operand 16950 states and 28053 transitions. [2024-10-31 22:18:44,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-31 22:18:44,250 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:18:44,250 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:44,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:18:44,251 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:18:44,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:44,252 INFO L85 PathProgramCache]: Analyzing trace with hash -851729165, now seen corresponding path program 1 times [2024-10-31 22:18:44,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:44,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819451159] [2024-10-31 22:18:44,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:44,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:44,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:44,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:44,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819451159] [2024-10-31 22:18:44,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819451159] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:44,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:44,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:18:44,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937082256] [2024-10-31 22:18:44,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:44,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:44,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:44,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:44,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:44,503 INFO L87 Difference]: Start difference. First operand 16950 states and 28053 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) [2024-10-31 22:18:44,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:18:44,903 INFO L93 Difference]: Finished difference Result 37720 states and 62475 transitions. [2024-10-31 22:18:44,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:44,904 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 [2024-10-31 22:18:44,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:18:44,968 INFO L225 Difference]: With dead ends: 37720 [2024-10-31 22:18:44,969 INFO L226 Difference]: Without dead ends: 25915 [2024-10-31 22:18:44,987 INFO L431 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 [2024-10-31 22:18:44,988 INFO L432 NwaCegarLoop]: 548 mSDtfsCounter, 124 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:18:44,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 989 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:18:45,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25915 states. [2024-10-31 22:18:45,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25915 to 25913. [2024-10-31 22:18:45,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25913 states, 25912 states have (on average 1.6418647730781106) internal successors, (42544), 25912 states have internal predecessors, (42544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:45,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25913 states to 25913 states and 42544 transitions. [2024-10-31 22:18:45,877 INFO L78 Accepts]: Start accepts. Automaton has 25913 states and 42544 transitions. Word has length 121 [2024-10-31 22:18:45,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:18:45,877 INFO L471 AbstractCegarLoop]: Abstraction has 25913 states and 42544 transitions. [2024-10-31 22:18:45,878 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) [2024-10-31 22:18:45,878 INFO L276 IsEmpty]: Start isEmpty. Operand 25913 states and 42544 transitions. [2024-10-31 22:18:45,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-31 22:18:45,880 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:18:45,880 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:45,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:18:45,881 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:18:45,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:45,882 INFO L85 PathProgramCache]: Analyzing trace with hash -73473003, now seen corresponding path program 1 times [2024-10-31 22:18:45,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:45,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817982537] [2024-10-31 22:18:45,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:45,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:46,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:46,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:46,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817982537] [2024-10-31 22:18:46,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817982537] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:46,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:46,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:18:46,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296092257] [2024-10-31 22:18:46,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:46,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:46,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:46,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:46,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:46,103 INFO L87 Difference]: Start difference. First operand 25913 states and 42544 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) [2024-10-31 22:18:47,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:18:47,022 INFO L93 Difference]: Finished difference Result 58484 states and 96683 transitions. [2024-10-31 22:18:47,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:47,023 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 [2024-10-31 22:18:47,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:18:47,126 INFO L225 Difference]: With dead ends: 58484 [2024-10-31 22:18:47,126 INFO L226 Difference]: Without dead ends: 39880 [2024-10-31 22:18:47,150 INFO L431 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 [2024-10-31 22:18:47,151 INFO L432 NwaCegarLoop]: 580 mSDtfsCounter, 138 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:18:47,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1019 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:18:47,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39880 states. [2024-10-31 22:18:48,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39880 to 39878. [2024-10-31 22:18:48,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39878 states, 39877 states have (on average 1.6338992401635029) internal successors, (65155), 39877 states have internal predecessors, (65155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:48,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39878 states to 39878 states and 65155 transitions. [2024-10-31 22:18:48,281 INFO L78 Accepts]: Start accepts. Automaton has 39878 states and 65155 transitions. Word has length 121 [2024-10-31 22:18:48,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:18:48,281 INFO L471 AbstractCegarLoop]: Abstraction has 39878 states and 65155 transitions. [2024-10-31 22:18:48,282 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) [2024-10-31 22:18:48,282 INFO L276 IsEmpty]: Start isEmpty. Operand 39878 states and 65155 transitions. [2024-10-31 22:18:48,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-31 22:18:48,283 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:18:48,284 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:48,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:18:48,284 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:18:48,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:48,285 INFO L85 PathProgramCache]: Analyzing trace with hash 443356654, now seen corresponding path program 1 times [2024-10-31 22:18:48,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:48,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424585117] [2024-10-31 22:18:48,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:48,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:48,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:48,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:48,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:48,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424585117] [2024-10-31 22:18:48,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424585117] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:48,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:48,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:18:48,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028050910] [2024-10-31 22:18:48,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:48,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:18:48,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:48,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:18:48,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:18:48,524 INFO L87 Difference]: Start difference. First operand 39878 states and 65155 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 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) [2024-10-31 22:18:50,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:18:50,212 INFO L93 Difference]: Finished difference Result 129233 states and 211728 transitions. [2024-10-31 22:18:50,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:18:50,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 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 [2024-10-31 22:18:50,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:18:50,665 INFO L225 Difference]: With dead ends: 129233 [2024-10-31 22:18:50,665 INFO L226 Difference]: Without dead ends: 89558 [2024-10-31 22:18:50,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:18:50,723 INFO L432 NwaCegarLoop]: 450 mSDtfsCounter, 453 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 1469 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:18:50,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 1469 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:18:50,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89558 states. [2024-10-31 22:18:52,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89558 to 64493. [2024-10-31 22:18:53,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64493 states, 64492 states have (on average 1.6267754140048378) internal successors, (104914), 64492 states have internal predecessors, (104914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:53,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64493 states to 64493 states and 104914 transitions. [2024-10-31 22:18:53,441 INFO L78 Accepts]: Start accepts. Automaton has 64493 states and 104914 transitions. Word has length 122 [2024-10-31 22:18:53,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:18:53,442 INFO L471 AbstractCegarLoop]: Abstraction has 64493 states and 104914 transitions. [2024-10-31 22:18:53,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 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) [2024-10-31 22:18:53,442 INFO L276 IsEmpty]: Start isEmpty. Operand 64493 states and 104914 transitions. [2024-10-31 22:18:53,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-31 22:18:53,444 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:18:53,444 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:53,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 22:18:53,444 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:18:53,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:53,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1352173114, now seen corresponding path program 1 times [2024-10-31 22:18:53,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:53,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163507606] [2024-10-31 22:18:53,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:53,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:53,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:53,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:53,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163507606] [2024-10-31 22:18:53,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163507606] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:53,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:53,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:18:53,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148575581] [2024-10-31 22:18:53,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:53,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:18:53,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:53,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:18:53,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:18:53,987 INFO L87 Difference]: Start difference. First operand 64493 states and 104914 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 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) [2024-10-31 22:18:55,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:18:55,486 INFO L93 Difference]: Finished difference Result 128785 states and 209497 transitions. [2024-10-31 22:18:55,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:18:55,487 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 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 [2024-10-31 22:18:55,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:18:55,644 INFO L225 Difference]: With dead ends: 128785 [2024-10-31 22:18:55,644 INFO L226 Difference]: Without dead ends: 64495 [2024-10-31 22:18:55,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:18:55,690 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 122 mSDsluCounter, 1700 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 2158 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:18:55,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 2158 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:18:55,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64495 states. [2024-10-31 22:18:57,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64495 to 64493. [2024-10-31 22:18:57,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64493 states, 64492 states have (on average 1.617084289524282) internal successors, (104289), 64492 states have internal predecessors, (104289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:57,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64493 states to 64493 states and 104289 transitions. [2024-10-31 22:18:57,787 INFO L78 Accepts]: Start accepts. Automaton has 64493 states and 104289 transitions. Word has length 124 [2024-10-31 22:18:57,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:18:57,787 INFO L471 AbstractCegarLoop]: Abstraction has 64493 states and 104289 transitions. [2024-10-31 22:18:57,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 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) [2024-10-31 22:18:57,788 INFO L276 IsEmpty]: Start isEmpty. Operand 64493 states and 104289 transitions. [2024-10-31 22:18:57,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-31 22:18:57,789 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:18:57,790 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:57,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-31 22:18:57,791 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:18:57,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:57,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1138444623, now seen corresponding path program 1 times [2024-10-31 22:18:57,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:57,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586880671] [2024-10-31 22:18:57,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:57,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat