./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme --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 ae696ef581cbe995636ab4900ea04e2b993d78100fba8db2a87ca7d99c3a6d1e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:00:13,930 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:00:14,004 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 12:00:14,010 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:00:14,011 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:00:14,037 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:00:14,038 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:00:14,038 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:00:14,039 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:00:14,040 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:00:14,040 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:00:14,041 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:00:14,042 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:00:14,043 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:00:14,043 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:00:14,044 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:00:14,045 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:00:14,045 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:00:14,046 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:00:14,046 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:00:14,047 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:00:14,048 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:00:14,048 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:00:14,049 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:00:14,049 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:00:14,050 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:00:14,051 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:00:14,051 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:00:14,052 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:00:14,052 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:00:14,053 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:00:14,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:14,069 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:00:14,069 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:00:14,069 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:00:14,069 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:00:14,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:00:14,070 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:00:14,070 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:00:14,071 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:00:14,071 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:00:14,072 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:00:14,072 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_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae696ef581cbe995636ab4900ea04e2b993d78100fba8db2a87ca7d99c3a6d1e [2023-11-26 12:00:14,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:00:14,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:00:14,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:00:14,430 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:00:14,431 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:00:14,433 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2023-11-26 12:00:17,521 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:00:17,808 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:00:17,812 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2023-11-26 12:00:17,833 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/data/f9d0f4e51/e8ac130a1e4c42ccb758ab9e74a3c45f/FLAGde9c23e3b [2023-11-26 12:00:17,851 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/data/f9d0f4e51/e8ac130a1e4c42ccb758ab9e74a3c45f [2023-11-26 12:00:17,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:00:17,860 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:00:17,862 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:17,863 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:00:17,868 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:00:17,871 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:17" (1/1) ... [2023-11-26 12:00:17,872 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37a6eeb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:17, skipping insertion in model container [2023-11-26 12:00:17,873 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:17" (1/1) ... [2023-11-26 12:00:17,936 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:00:18,275 WARN L240 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_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c[37883,37896] [2023-11-26 12:00:18,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:18,314 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:00:18,401 WARN L240 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_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c[37883,37896] [2023-11-26 12:00:18,404 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:18,419 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:00:18,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:18 WrapperNode [2023-11-26 12:00:18,420 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:18,421 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:18,421 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:00:18,422 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:00:18,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:18" (1/1) ... [2023-11-26 12:00:18,441 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:18" (1/1) ... [2023-11-26 12:00:18,488 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 543 [2023-11-26 12:00:18,489 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:18,490 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:00:18,490 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:00:18,490 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:00:18,512 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:18" (1/1) ... [2023-11-26 12:00:18,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:18" (1/1) ... [2023-11-26 12:00:18,527 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:18" (1/1) ... [2023-11-26 12:00:18,550 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]. [2023-11-26 12:00:18,565 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:18" (1/1) ... [2023-11-26 12:00:18,566 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:18" (1/1) ... [2023-11-26 12:00:18,584 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:18" (1/1) ... [2023-11-26 12:00:18,591 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:18" (1/1) ... [2023-11-26 12:00:18,601 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:18" (1/1) ... [2023-11-26 12:00:18,603 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:18" (1/1) ... [2023-11-26 12:00:18,607 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:00:18,608 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:00:18,608 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:00:18,609 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:00:18,610 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:18" (1/1) ... [2023-11-26 12:00:18,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:18,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:18,648 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:18,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:00:18,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:00:18,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:00:18,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:00:18,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:00:18,790 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:00:18,793 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:00:18,814 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-26 12:00:19,480 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2023-11-26 12:00:19,481 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2023-11-26 12:00:19,481 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:00:19,529 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:00:19,530 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 12:00:19,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:19 BoogieIcfgContainer [2023-11-26 12:00:19,530 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:00:19,538 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:00:19,538 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:00:19,541 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:00:19,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:00:17" (1/3) ... [2023-11-26 12:00:19,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@501c0afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:19, skipping insertion in model container [2023-11-26 12:00:19,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:18" (2/3) ... [2023-11-26 12:00:19,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@501c0afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:19, skipping insertion in model container [2023-11-26 12:00:19,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:19" (3/3) ... [2023-11-26 12:00:19,548 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-1a.c [2023-11-26 12:00:19,566 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:00:19,566 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 12:00:19,628 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:00:19,635 INFO L357 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, mHoare=true, 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;@334fcee4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:00:19,636 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 12:00:19,642 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 123 states have (on average 1.7723577235772359) internal successors, (218), 124 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:19,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-26 12:00:19,653 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:19,654 INFO L195 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] [2023-11-26 12:00:19,654 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:19,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:19,659 INFO L85 PathProgramCache]: Analyzing trace with hash 595678429, now seen corresponding path program 1 times [2023-11-26 12:00:19,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:19,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590335694] [2023-11-26 12:00:19,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:19,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:19,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:19,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:19,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590335694] [2023-11-26 12:00:19,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590335694] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:19,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:19,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:00:19,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061883851] [2023-11-26 12:00:19,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:19,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:19,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:19,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:19,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:19,980 INFO L87 Difference]: Start difference. First operand has 125 states, 123 states have (on average 1.7723577235772359) internal successors, (218), 124 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:20,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:20,152 INFO L93 Difference]: Finished difference Result 245 states and 429 transitions. [2023-11-26 12:00:20,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:20,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2023-11-26 12:00:20,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:20,168 INFO L225 Difference]: With dead ends: 245 [2023-11-26 12:00:20,168 INFO L226 Difference]: Without dead ends: 115 [2023-11-26 12:00:20,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:20,175 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 7 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:20,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 315 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:00:20,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-11-26 12:00:20,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2023-11-26 12:00:20,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.5526315789473684) internal successors, (177), 114 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:20,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 177 transitions. [2023-11-26 12:00:20,217 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 177 transitions. Word has length 23 [2023-11-26 12:00:20,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:20,217 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 177 transitions. [2023-11-26 12:00:20,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:20,218 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 177 transitions. [2023-11-26 12:00:20,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-26 12:00:20,220 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:20,220 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:20,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:00:20,221 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:20,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:20,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1175856154, now seen corresponding path program 1 times [2023-11-26 12:00:20,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:20,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077285366] [2023-11-26 12:00:20,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:20,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:20,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:20,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:20,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:20,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077285366] [2023-11-26 12:00:20,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077285366] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:20,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:20,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:20,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254645330] [2023-11-26 12:00:20,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:20,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:20,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:20,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:20,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:20,358 INFO L87 Difference]: Start difference. First operand 115 states and 177 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:20,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:20,536 INFO L93 Difference]: Finished difference Result 238 states and 369 transitions. [2023-11-26 12:00:20,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:20,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2023-11-26 12:00:20,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:20,543 INFO L225 Difference]: With dead ends: 238 [2023-11-26 12:00:20,544 INFO L226 Difference]: Without dead ends: 132 [2023-11-26 12:00:20,545 INFO L412 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 [2023-11-26 12:00:20,547 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 13 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:20,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 244 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:00:20,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-11-26 12:00:20,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 129. [2023-11-26 12:00:20,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.53125) internal successors, (196), 128 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:20,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 196 transitions. [2023-11-26 12:00:20,582 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 196 transitions. Word has length 33 [2023-11-26 12:00:20,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:20,583 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 196 transitions. [2023-11-26 12:00:20,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:20,583 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 196 transitions. [2023-11-26 12:00:20,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-26 12:00:20,586 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:20,587 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:20,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:00:20,587 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:20,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:20,588 INFO L85 PathProgramCache]: Analyzing trace with hash 372716667, now seen corresponding path program 1 times [2023-11-26 12:00:20,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:20,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291907065] [2023-11-26 12:00:20,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:20,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:20,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:20,762 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:00:20,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:20,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291907065] [2023-11-26 12:00:20,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291907065] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:20,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:20,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:00:20,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146265952] [2023-11-26 12:00:20,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:20,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:20,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:20,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:20,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:20,765 INFO L87 Difference]: Start difference. First operand 129 states and 196 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:20,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:20,806 INFO L93 Difference]: Finished difference Result 273 states and 410 transitions. [2023-11-26 12:00:20,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:20,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 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 46 [2023-11-26 12:00:20,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:20,808 INFO L225 Difference]: With dead ends: 273 [2023-11-26 12:00:20,808 INFO L226 Difference]: Without dead ends: 153 [2023-11-26 12:00:20,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:20,813 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 21 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:20,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 320 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:20,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-11-26 12:00:20,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2023-11-26 12:00:20,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 152 states have (on average 1.493421052631579) internal successors, (227), 152 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:20,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 227 transitions. [2023-11-26 12:00:20,831 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 227 transitions. Word has length 46 [2023-11-26 12:00:20,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:20,837 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 227 transitions. [2023-11-26 12:00:20,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:20,837 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 227 transitions. [2023-11-26 12:00:20,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-26 12:00:20,840 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:20,841 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:20,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:00:20,841 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:20,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:20,842 INFO L85 PathProgramCache]: Analyzing trace with hash -2116812295, now seen corresponding path program 1 times [2023-11-26 12:00:20,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:20,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745127380] [2023-11-26 12:00:20,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:20,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:20,943 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:00:20,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:20,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745127380] [2023-11-26 12:00:20,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745127380] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:20,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:20,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:20,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139024978] [2023-11-26 12:00:20,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:20,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:20,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:20,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:20,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:20,946 INFO L87 Difference]: Start difference. First operand 153 states and 227 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:21,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:21,100 INFO L93 Difference]: Finished difference Result 293 states and 444 transitions. [2023-11-26 12:00:21,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:21,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 46 [2023-11-26 12:00:21,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:21,103 INFO L225 Difference]: With dead ends: 293 [2023-11-26 12:00:21,103 INFO L226 Difference]: Without dead ends: 173 [2023-11-26 12:00:21,104 INFO L412 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 [2023-11-26 12:00:21,105 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 16 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:21,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 257 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:00:21,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-11-26 12:00:21,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 169. [2023-11-26 12:00:21,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 168 states have (on average 1.4761904761904763) internal successors, (248), 168 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:21,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 248 transitions. [2023-11-26 12:00:21,117 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 248 transitions. Word has length 46 [2023-11-26 12:00:21,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:21,117 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 248 transitions. [2023-11-26 12:00:21,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:21,118 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 248 transitions. [2023-11-26 12:00:21,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-26 12:00:21,120 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:21,120 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:21,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 12:00:21,121 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:21,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:21,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1887020993, now seen corresponding path program 1 times [2023-11-26 12:00:21,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:21,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897251170] [2023-11-26 12:00:21,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:21,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:21,281 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-26 12:00:21,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:21,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897251170] [2023-11-26 12:00:21,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897251170] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:21,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:21,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:21,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448423405] [2023-11-26 12:00:21,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:21,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:21,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:21,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:21,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:21,284 INFO L87 Difference]: Start difference. First operand 169 states and 248 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:21,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:21,326 INFO L93 Difference]: Finished difference Result 438 states and 652 transitions. [2023-11-26 12:00:21,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:21,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-11-26 12:00:21,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:21,330 INFO L225 Difference]: With dead ends: 438 [2023-11-26 12:00:21,330 INFO L226 Difference]: Without dead ends: 302 [2023-11-26 12:00:21,331 INFO L412 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 [2023-11-26 12:00:21,332 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 131 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:21,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 364 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:21,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2023-11-26 12:00:21,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2023-11-26 12:00:21,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 301 states have (on average 1.4717607973421927) internal successors, (443), 301 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:21,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 443 transitions. [2023-11-26 12:00:21,349 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 443 transitions. Word has length 64 [2023-11-26 12:00:21,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:21,349 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 443 transitions. [2023-11-26 12:00:21,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:21,350 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 443 transitions. [2023-11-26 12:00:21,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-26 12:00:21,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:21,353 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:21,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 12:00:21,353 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:21,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:21,354 INFO L85 PathProgramCache]: Analyzing trace with hash 78879833, now seen corresponding path program 1 times [2023-11-26 12:00:21,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:21,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841327719] [2023-11-26 12:00:21,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:21,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:21,412 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:00:21,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:21,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841327719] [2023-11-26 12:00:21,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841327719] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:21,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:21,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:21,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028652159] [2023-11-26 12:00:21,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:21,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:21,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:21,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:21,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:21,416 INFO L87 Difference]: Start difference. First operand 302 states and 443 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:21,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:21,447 INFO L93 Difference]: Finished difference Result 591 states and 868 transitions. [2023-11-26 12:00:21,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:21,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 65 [2023-11-26 12:00:21,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:21,451 INFO L225 Difference]: With dead ends: 591 [2023-11-26 12:00:21,451 INFO L226 Difference]: Without dead ends: 322 [2023-11-26 12:00:21,452 INFO L412 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 [2023-11-26 12:00:21,453 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 11 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:21,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 348 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:21,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-11-26 12:00:21,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2023-11-26 12:00:21,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 321 states have (on average 1.4610591900311527) internal successors, (469), 321 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:21,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 469 transitions. [2023-11-26 12:00:21,467 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 469 transitions. Word has length 65 [2023-11-26 12:00:21,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:21,468 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 469 transitions. [2023-11-26 12:00:21,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:21,468 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 469 transitions. [2023-11-26 12:00:21,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-26 12:00:21,470 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:21,470 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:21,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 12:00:21,470 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:21,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:21,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1563080131, now seen corresponding path program 1 times [2023-11-26 12:00:21,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:21,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035225074] [2023-11-26 12:00:21,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:21,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:21,539 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-26 12:00:21,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:21,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035225074] [2023-11-26 12:00:21,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035225074] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:21,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:21,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:21,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964489700] [2023-11-26 12:00:21,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:21,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:21,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:21,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:21,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:21,543 INFO L87 Difference]: Start difference. First operand 322 states and 469 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:21,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:21,688 INFO L93 Difference]: Finished difference Result 657 states and 974 transitions. [2023-11-26 12:00:21,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:21,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-11-26 12:00:21,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:21,691 INFO L225 Difference]: With dead ends: 657 [2023-11-26 12:00:21,691 INFO L226 Difference]: Without dead ends: 368 [2023-11-26 12:00:21,692 INFO L412 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 [2023-11-26 12:00:21,693 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 12 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:21,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 262 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:00:21,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-11-26 12:00:21,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 362. [2023-11-26 12:00:21,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 361 states have (on average 1.4376731301939059) internal successors, (519), 361 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:21,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 519 transitions. [2023-11-26 12:00:21,706 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 519 transitions. Word has length 81 [2023-11-26 12:00:21,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:21,707 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 519 transitions. [2023-11-26 12:00:21,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:21,708 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 519 transitions. [2023-11-26 12:00:21,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-26 12:00:21,709 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:21,710 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:21,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 12:00:21,710 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:21,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:21,711 INFO L85 PathProgramCache]: Analyzing trace with hash 2060730279, now seen corresponding path program 1 times [2023-11-26 12:00:21,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:21,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020173218] [2023-11-26 12:00:21,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:21,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:21,798 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-26 12:00:21,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:21,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020173218] [2023-11-26 12:00:21,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020173218] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:21,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:21,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:21,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016778001] [2023-11-26 12:00:21,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:21,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:21,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:21,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:21,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:21,801 INFO L87 Difference]: Start difference. First operand 362 states and 519 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:21,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:21,859 INFO L93 Difference]: Finished difference Result 518 states and 747 transitions. [2023-11-26 12:00:21,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:21,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-11-26 12:00:21,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:21,864 INFO L225 Difference]: With dead ends: 518 [2023-11-26 12:00:21,864 INFO L226 Difference]: Without dead ends: 516 [2023-11-26 12:00:21,864 INFO L412 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 [2023-11-26 12:00:21,865 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 147 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:21,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 310 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:21,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2023-11-26 12:00:21,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2023-11-26 12:00:21,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 515 states have (on average 1.4466019417475728) internal successors, (745), 515 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:21,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 745 transitions. [2023-11-26 12:00:21,884 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 745 transitions. Word has length 100 [2023-11-26 12:00:21,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:21,884 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 745 transitions. [2023-11-26 12:00:21,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:21,885 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 745 transitions. [2023-11-26 12:00:21,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-26 12:00:21,887 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:21,887 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:21,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 12:00:21,888 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:21,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:21,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1808266219, now seen corresponding path program 1 times [2023-11-26 12:00:21,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:21,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519546599] [2023-11-26 12:00:21,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:21,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:22,011 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-26 12:00:22,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:22,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519546599] [2023-11-26 12:00:22,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519546599] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:22,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:22,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:22,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954336737] [2023-11-26 12:00:22,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:22,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:22,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:22,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:22,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:22,014 INFO L87 Difference]: Start difference. First operand 516 states and 745 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:22,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:22,236 INFO L93 Difference]: Finished difference Result 1146 states and 1706 transitions. [2023-11-26 12:00:22,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:22,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 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 [2023-11-26 12:00:22,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:22,242 INFO L225 Difference]: With dead ends: 1146 [2023-11-26 12:00:22,242 INFO L226 Difference]: Without dead ends: 660 [2023-11-26 12:00:22,244 INFO L412 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 [2023-11-26 12:00:22,247 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 74 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:22,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 240 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:00:22,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2023-11-26 12:00:22,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 636. [2023-11-26 12:00:22,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 635 states have (on average 1.4803149606299213) internal successors, (940), 635 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:22,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 940 transitions. [2023-11-26 12:00:22,271 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 940 transitions. Word has length 119 [2023-11-26 12:00:22,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:22,272 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 940 transitions. [2023-11-26 12:00:22,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:22,272 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 940 transitions. [2023-11-26 12:00:22,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-26 12:00:22,276 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:22,276 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 7, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:22,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 12:00:22,276 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:22,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:22,277 INFO L85 PathProgramCache]: Analyzing trace with hash -651307807, now seen corresponding path program 1 times [2023-11-26 12:00:22,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:22,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130718311] [2023-11-26 12:00:22,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:22,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:22,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:22,389 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-26 12:00:22,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:22,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130718311] [2023-11-26 12:00:22,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130718311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:22,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:22,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:22,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222961838] [2023-11-26 12:00:22,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:22,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:22,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:22,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:22,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:22,392 INFO L87 Difference]: Start difference. First operand 636 states and 940 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:22,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:22,580 INFO L93 Difference]: Finished difference Result 1511 states and 2296 transitions. [2023-11-26 12:00:22,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:22,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2023-11-26 12:00:22,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:22,586 INFO L225 Difference]: With dead ends: 1511 [2023-11-26 12:00:22,586 INFO L226 Difference]: Without dead ends: 857 [2023-11-26 12:00:22,587 INFO L412 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 [2023-11-26 12:00:22,588 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 81 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:22,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 216 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:00:22,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2023-11-26 12:00:22,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 819. [2023-11-26 12:00:22,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 818 states have (on average 1.449877750611247) internal successors, (1186), 818 states have internal predecessors, (1186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:22,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1186 transitions. [2023-11-26 12:00:22,614 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1186 transitions. Word has length 142 [2023-11-26 12:00:22,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:22,615 INFO L495 AbstractCegarLoop]: Abstraction has 819 states and 1186 transitions. [2023-11-26 12:00:22,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:22,615 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1186 transitions. [2023-11-26 12:00:22,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-26 12:00:22,618 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:22,618 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 8, 8, 8, 8, 8, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:22,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 12:00:22,618 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:22,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:22,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1208933037, now seen corresponding path program 1 times [2023-11-26 12:00:22,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:22,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557084549] [2023-11-26 12:00:22,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:22,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:22,726 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-26 12:00:22,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:22,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557084549] [2023-11-26 12:00:22,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557084549] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:22,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:22,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:22,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11331508] [2023-11-26 12:00:22,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:22,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:22,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:22,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:22,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:22,729 INFO L87 Difference]: Start difference. First operand 819 states and 1186 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:22,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:22,951 INFO L93 Difference]: Finished difference Result 1758 states and 2564 transitions. [2023-11-26 12:00:22,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:22,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 162 [2023-11-26 12:00:22,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:22,957 INFO L225 Difference]: With dead ends: 1758 [2023-11-26 12:00:22,957 INFO L226 Difference]: Without dead ends: 927 [2023-11-26 12:00:22,959 INFO L412 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 [2023-11-26 12:00:22,959 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 84 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:22,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 212 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:00:22,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2023-11-26 12:00:22,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 891. [2023-11-26 12:00:22,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 890 states have (on average 1.4370786516853933) internal successors, (1279), 890 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:22,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1279 transitions. [2023-11-26 12:00:22,990 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1279 transitions. Word has length 162 [2023-11-26 12:00:22,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:22,990 INFO L495 AbstractCegarLoop]: Abstraction has 891 states and 1279 transitions. [2023-11-26 12:00:22,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:22,991 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1279 transitions. [2023-11-26 12:00:22,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-11-26 12:00:22,994 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:22,994 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:22,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 12:00:22,995 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:22,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:22,995 INFO L85 PathProgramCache]: Analyzing trace with hash -316699344, now seen corresponding path program 1 times [2023-11-26 12:00:22,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:22,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327664455] [2023-11-26 12:00:22,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:22,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:23,111 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2023-11-26 12:00:23,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:23,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327664455] [2023-11-26 12:00:23,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327664455] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:23,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:23,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:23,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133451177] [2023-11-26 12:00:23,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:23,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:23,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:23,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:23,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:23,114 INFO L87 Difference]: Start difference. First operand 891 states and 1279 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) [2023-11-26 12:00:23,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:23,305 INFO L93 Difference]: Finished difference Result 1902 states and 2747 transitions. [2023-11-26 12:00:23,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:23,306 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 185 [2023-11-26 12:00:23,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:23,312 INFO L225 Difference]: With dead ends: 1902 [2023-11-26 12:00:23,312 INFO L226 Difference]: Without dead ends: 1005 [2023-11-26 12:00:23,314 INFO L412 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 [2023-11-26 12:00:23,314 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 85 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:23,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 210 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:00:23,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2023-11-26 12:00:23,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 972. [2023-11-26 12:00:23,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 971 states have (on average 1.4284243048403709) internal successors, (1387), 971 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:23,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1387 transitions. [2023-11-26 12:00:23,346 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1387 transitions. Word has length 185 [2023-11-26 12:00:23,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:23,346 INFO L495 AbstractCegarLoop]: Abstraction has 972 states and 1387 transitions. [2023-11-26 12:00:23,346 INFO L496 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) [2023-11-26 12:00:23,347 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1387 transitions. [2023-11-26 12:00:23,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-11-26 12:00:23,350 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:23,351 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:23,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 12:00:23,351 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:23,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:23,352 INFO L85 PathProgramCache]: Analyzing trace with hash -371092242, now seen corresponding path program 1 times [2023-11-26 12:00:23,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:23,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200466783] [2023-11-26 12:00:23,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:23,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:23,452 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2023-11-26 12:00:23,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:23,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200466783] [2023-11-26 12:00:23,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200466783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:23,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:23,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:23,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254325039] [2023-11-26 12:00:23,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:23,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:23,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:23,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:23,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:23,456 INFO L87 Difference]: Start difference. First operand 972 states and 1387 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) [2023-11-26 12:00:23,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:23,657 INFO L93 Difference]: Finished difference Result 2064 states and 2966 transitions. [2023-11-26 12:00:23,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:23,658 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 185 [2023-11-26 12:00:23,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:23,664 INFO L225 Difference]: With dead ends: 2064 [2023-11-26 12:00:23,665 INFO L226 Difference]: Without dead ends: 1098 [2023-11-26 12:00:23,668 INFO L412 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 [2023-11-26 12:00:23,670 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 87 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:23,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 208 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:00:23,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2023-11-26 12:00:23,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1062. [2023-11-26 12:00:23,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 1061 states have (on average 1.4288407163053722) internal successors, (1516), 1061 states have internal predecessors, (1516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:23,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1516 transitions. [2023-11-26 12:00:23,709 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1516 transitions. Word has length 185 [2023-11-26 12:00:23,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:23,710 INFO L495 AbstractCegarLoop]: Abstraction has 1062 states and 1516 transitions. [2023-11-26 12:00:23,710 INFO L496 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) [2023-11-26 12:00:23,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1516 transitions. [2023-11-26 12:00:23,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-11-26 12:00:23,714 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:23,715 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:23,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 12:00:23,715 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:23,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:23,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1420956380, now seen corresponding path program 1 times [2023-11-26 12:00:23,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:23,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138887611] [2023-11-26 12:00:23,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:23,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:23,868 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 378 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2023-11-26 12:00:23,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:23,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138887611] [2023-11-26 12:00:23,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138887611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:23,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:23,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:23,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580225748] [2023-11-26 12:00:23,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:23,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:23,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:23,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:23,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:23,871 INFO L87 Difference]: Start difference. First operand 1062 states and 1516 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:23,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:23,927 INFO L93 Difference]: Finished difference Result 3117 states and 4455 transitions. [2023-11-26 12:00:23,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:23,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 214 [2023-11-26 12:00:23,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:23,939 INFO L225 Difference]: With dead ends: 3117 [2023-11-26 12:00:23,939 INFO L226 Difference]: Without dead ends: 2088 [2023-11-26 12:00:23,941 INFO L412 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 [2023-11-26 12:00:23,942 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 133 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:23,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 493 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:23,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2088 states. [2023-11-26 12:00:23,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2088 to 2086. [2023-11-26 12:00:23,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2086 states, 2085 states have (on average 1.4292565947242206) internal successors, (2980), 2085 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:24,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2086 states to 2086 states and 2980 transitions. [2023-11-26 12:00:24,007 INFO L78 Accepts]: Start accepts. Automaton has 2086 states and 2980 transitions. Word has length 214 [2023-11-26 12:00:24,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:24,008 INFO L495 AbstractCegarLoop]: Abstraction has 2086 states and 2980 transitions. [2023-11-26 12:00:24,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:24,008 INFO L276 IsEmpty]: Start isEmpty. Operand 2086 states and 2980 transitions. [2023-11-26 12:00:24,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-11-26 12:00:24,013 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:24,015 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:24,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 12:00:24,015 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:24,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:24,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1475349278, now seen corresponding path program 1 times [2023-11-26 12:00:24,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:24,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735236192] [2023-11-26 12:00:24,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:24,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:24,137 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2023-11-26 12:00:24,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:24,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735236192] [2023-11-26 12:00:24,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735236192] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:24,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:24,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:24,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514994773] [2023-11-26 12:00:24,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:24,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:24,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:24,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:24,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:24,141 INFO L87 Difference]: Start difference. First operand 2086 states and 2980 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:24,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:24,365 INFO L93 Difference]: Finished difference Result 4439 states and 6377 transitions. [2023-11-26 12:00:24,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:24,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 214 [2023-11-26 12:00:24,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:24,380 INFO L225 Difference]: With dead ends: 4439 [2023-11-26 12:00:24,380 INFO L226 Difference]: Without dead ends: 2356 [2023-11-26 12:00:24,384 INFO L412 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 [2023-11-26 12:00:24,385 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 90 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:24,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 202 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:00:24,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2356 states. [2023-11-26 12:00:24,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2356 to 2290. [2023-11-26 12:00:24,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2290 states, 2289 states have (on average 1.435561380515509) internal successors, (3286), 2289 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:24,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2290 states to 2290 states and 3286 transitions. [2023-11-26 12:00:24,473 INFO L78 Accepts]: Start accepts. Automaton has 2290 states and 3286 transitions. Word has length 214 [2023-11-26 12:00:24,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:24,473 INFO L495 AbstractCegarLoop]: Abstraction has 2290 states and 3286 transitions. [2023-11-26 12:00:24,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:24,474 INFO L276 IsEmpty]: Start isEmpty. Operand 2290 states and 3286 transitions. [2023-11-26 12:00:24,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-11-26 12:00:24,480 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:24,481 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:24,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 12:00:24,482 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:24,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:24,483 INFO L85 PathProgramCache]: Analyzing trace with hash -336008721, now seen corresponding path program 1 times [2023-11-26 12:00:24,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:24,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877638877] [2023-11-26 12:00:24,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:24,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:24,662 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 345 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2023-11-26 12:00:24,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:24,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877638877] [2023-11-26 12:00:24,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877638877] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:24,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:24,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:24,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380248504] [2023-11-26 12:00:24,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:24,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:24,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:24,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:24,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:24,668 INFO L87 Difference]: Start difference. First operand 2290 states and 3286 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:24,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:24,905 INFO L93 Difference]: Finished difference Result 4613 states and 6605 transitions. [2023-11-26 12:00:24,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:24,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 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 248 [2023-11-26 12:00:24,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:24,918 INFO L225 Difference]: With dead ends: 4613 [2023-11-26 12:00:24,919 INFO L226 Difference]: Without dead ends: 2338 [2023-11-26 12:00:24,922 INFO L412 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 [2023-11-26 12:00:24,923 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 93 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:24,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 197 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:00:24,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2338 states. [2023-11-26 12:00:24,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2338 to 2272. [2023-11-26 12:00:24,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2272 states, 2271 states have (on average 1.4231616028181417) internal successors, (3232), 2271 states have internal predecessors, (3232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:25,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2272 states to 2272 states and 3232 transitions. [2023-11-26 12:00:25,007 INFO L78 Accepts]: Start accepts. Automaton has 2272 states and 3232 transitions. Word has length 248 [2023-11-26 12:00:25,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:25,007 INFO L495 AbstractCegarLoop]: Abstraction has 2272 states and 3232 transitions. [2023-11-26 12:00:25,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:25,008 INFO L276 IsEmpty]: Start isEmpty. Operand 2272 states and 3232 transitions. [2023-11-26 12:00:25,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-11-26 12:00:25,015 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:25,015 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:25,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 12:00:25,015 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:25,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:25,016 INFO L85 PathProgramCache]: Analyzing trace with hash 323085564, now seen corresponding path program 1 times [2023-11-26 12:00:25,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:25,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702564500] [2023-11-26 12:00:25,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:25,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:25,202 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2023-11-26 12:00:25,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:25,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702564500] [2023-11-26 12:00:25,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702564500] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:25,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:25,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:25,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117253282] [2023-11-26 12:00:25,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:25,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:25,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:25,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:25,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:25,205 INFO L87 Difference]: Start difference. First operand 2272 states and 3232 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 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) [2023-11-26 12:00:25,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:25,306 INFO L93 Difference]: Finished difference Result 6722 states and 9555 transitions. [2023-11-26 12:00:25,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:25,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 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 260 [2023-11-26 12:00:25,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:25,333 INFO L225 Difference]: With dead ends: 6722 [2023-11-26 12:00:25,333 INFO L226 Difference]: Without dead ends: 4483 [2023-11-26 12:00:25,337 INFO L412 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 [2023-11-26 12:00:25,337 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 72 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:25,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 329 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:25,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4483 states. [2023-11-26 12:00:25,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4483 to 4481. [2023-11-26 12:00:25,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4481 states, 4480 states have (on average 1.4171875) internal successors, (6349), 4480 states have internal predecessors, (6349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:25,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4481 states to 4481 states and 6349 transitions. [2023-11-26 12:00:25,539 INFO L78 Accepts]: Start accepts. Automaton has 4481 states and 6349 transitions. Word has length 260 [2023-11-26 12:00:25,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:25,540 INFO L495 AbstractCegarLoop]: Abstraction has 4481 states and 6349 transitions. [2023-11-26 12:00:25,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 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) [2023-11-26 12:00:25,540 INFO L276 IsEmpty]: Start isEmpty. Operand 4481 states and 6349 transitions. [2023-11-26 12:00:25,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-11-26 12:00:25,552 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:25,553 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:25,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 12:00:25,553 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:25,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:25,554 INFO L85 PathProgramCache]: Analyzing trace with hash -763409876, now seen corresponding path program 1 times [2023-11-26 12:00:25,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:25,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750287368] [2023-11-26 12:00:25,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:25,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:25,744 INFO L134 CoverageAnalysis]: Checked inductivity of 776 backedges. 283 proven. 22 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2023-11-26 12:00:25,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:25,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750287368] [2023-11-26 12:00:25,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750287368] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:00:25,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835170085] [2023-11-26 12:00:25,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:25,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:25,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:25,751 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:00:25,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 12:00:25,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:25,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:25,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:26,035 INFO L134 CoverageAnalysis]: Checked inductivity of 776 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2023-11-26 12:00:26,035 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:26,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835170085] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:26,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 12:00:26,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-26 12:00:26,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354870019] [2023-11-26 12:00:26,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:26,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:26,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:26,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:26,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:00:26,038 INFO L87 Difference]: Start difference. First operand 4481 states and 6349 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:26,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:26,355 INFO L93 Difference]: Finished difference Result 9011 states and 12752 transitions. [2023-11-26 12:00:26,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:26,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 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 260 [2023-11-26 12:00:26,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:26,382 INFO L225 Difference]: With dead ends: 9011 [2023-11-26 12:00:26,382 INFO L226 Difference]: Without dead ends: 4589 [2023-11-26 12:00:26,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:00:26,388 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 48 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:26,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 256 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:00:26,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4589 states. [2023-11-26 12:00:26,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4589 to 4481. [2023-11-26 12:00:26,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4481 states, 4480 states have (on average 1.3930803571428572) internal successors, (6241), 4480 states have internal predecessors, (6241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:26,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4481 states to 4481 states and 6241 transitions. [2023-11-26 12:00:26,547 INFO L78 Accepts]: Start accepts. Automaton has 4481 states and 6241 transitions. Word has length 260 [2023-11-26 12:00:26,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:26,548 INFO L495 AbstractCegarLoop]: Abstraction has 4481 states and 6241 transitions. [2023-11-26 12:00:26,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:26,548 INFO L276 IsEmpty]: Start isEmpty. Operand 4481 states and 6241 transitions. [2023-11-26 12:00:26,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-11-26 12:00:26,559 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:26,559 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:26,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-26 12:00:26,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-26 12:00:26,766 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:26,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:26,767 INFO L85 PathProgramCache]: Analyzing trace with hash 751087606, now seen corresponding path program 1 times [2023-11-26 12:00:26,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:26,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260532364] [2023-11-26 12:00:26,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:26,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:26,981 INFO L134 CoverageAnalysis]: Checked inductivity of 961 backedges. 342 proven. 22 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2023-11-26 12:00:26,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:26,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260532364] [2023-11-26 12:00:26,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260532364] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:00:26,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508685006] [2023-11-26 12:00:26,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:26,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:26,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:26,984 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:00:27,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 12:00:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:27,163 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:27,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:27,203 INFO L134 CoverageAnalysis]: Checked inductivity of 961 backedges. 408 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2023-11-26 12:00:27,203 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:27,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508685006] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:27,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 12:00:27,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-26 12:00:27,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788905327] [2023-11-26 12:00:27,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:27,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:27,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:27,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:27,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:00:27,206 INFO L87 Difference]: Start difference. First operand 4481 states and 6241 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:27,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:27,467 INFO L93 Difference]: Finished difference Result 9485 states and 13094 transitions. [2023-11-26 12:00:27,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:27,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 285 [2023-11-26 12:00:27,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:27,510 INFO L225 Difference]: With dead ends: 9485 [2023-11-26 12:00:27,510 INFO L226 Difference]: Without dead ends: 5063 [2023-11-26 12:00:27,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:00:27,517 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 105 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:27,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 195 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:00:27,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5063 states. [2023-11-26 12:00:27,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5063 to 4643. [2023-11-26 12:00:27,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4643 states, 4642 states have (on average 1.3922878069797502) internal successors, (6463), 4642 states have internal predecessors, (6463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:27,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4643 states to 4643 states and 6463 transitions. [2023-11-26 12:00:27,699 INFO L78 Accepts]: Start accepts. Automaton has 4643 states and 6463 transitions. Word has length 285 [2023-11-26 12:00:27,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:27,700 INFO L495 AbstractCegarLoop]: Abstraction has 4643 states and 6463 transitions. [2023-11-26 12:00:27,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:27,701 INFO L276 IsEmpty]: Start isEmpty. Operand 4643 states and 6463 transitions. [2023-11-26 12:00:27,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2023-11-26 12:00:27,712 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:27,713 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:27,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:27,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:27,920 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:27,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:27,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1521347494, now seen corresponding path program 1 times [2023-11-26 12:00:27,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:27,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497828652] [2023-11-26 12:00:27,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:27,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:28,161 INFO L134 CoverageAnalysis]: Checked inductivity of 963 backedges. 410 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2023-11-26 12:00:28,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:28,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497828652] [2023-11-26 12:00:28,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497828652] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:28,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:28,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:28,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119500768] [2023-11-26 12:00:28,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:28,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:28,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:28,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:28,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:28,165 INFO L87 Difference]: Start difference. First operand 4643 states and 6463 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:28,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:28,438 INFO L93 Difference]: Finished difference Result 9551 states and 13172 transitions. [2023-11-26 12:00:28,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:28,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 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 286 [2023-11-26 12:00:28,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:28,450 INFO L225 Difference]: With dead ends: 9551 [2023-11-26 12:00:28,450 INFO L226 Difference]: Without dead ends: 4475 [2023-11-26 12:00:28,457 INFO L412 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 [2023-11-26 12:00:28,458 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 39 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:28,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 264 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:00:28,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4475 states. [2023-11-26 12:00:28,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4475 to 4457. [2023-11-26 12:00:28,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4457 states, 4456 states have (on average 1.3871184919210053) internal successors, (6181), 4456 states have internal predecessors, (6181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:28,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4457 states to 4457 states and 6181 transitions. [2023-11-26 12:00:28,601 INFO L78 Accepts]: Start accepts. Automaton has 4457 states and 6181 transitions. Word has length 286 [2023-11-26 12:00:28,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:28,602 INFO L495 AbstractCegarLoop]: Abstraction has 4457 states and 6181 transitions. [2023-11-26 12:00:28,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:28,603 INFO L276 IsEmpty]: Start isEmpty. Operand 4457 states and 6181 transitions. [2023-11-26 12:00:28,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2023-11-26 12:00:28,614 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:28,614 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:28,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-26 12:00:28,615 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:28,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:28,615 INFO L85 PathProgramCache]: Analyzing trace with hash 117870568, now seen corresponding path program 1 times [2023-11-26 12:00:28,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:28,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623485155] [2023-11-26 12:00:28,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:28,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:28,831 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 318 proven. 22 refuted. 0 times theorem prover too weak. 635 trivial. 0 not checked. [2023-11-26 12:00:28,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:28,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623485155] [2023-11-26 12:00:28,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623485155] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:00:28,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666272807] [2023-11-26 12:00:28,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:28,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:28,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:28,835 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:00:28,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 12:00:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:29,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:00:29,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:29,465 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 809 trivial. 0 not checked. [2023-11-26 12:00:29,466 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:29,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666272807] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:29,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 12:00:29,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-26 12:00:29,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800052182] [2023-11-26 12:00:29,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:29,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:29,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:29,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:29,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:00:29,469 INFO L87 Difference]: Start difference. First operand 4457 states and 6181 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:29,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:29,576 INFO L93 Difference]: Finished difference Result 6692 states and 9261 transitions. [2023-11-26 12:00:29,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:29,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 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 297 [2023-11-26 12:00:29,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:29,587 INFO L225 Difference]: With dead ends: 6692 [2023-11-26 12:00:29,587 INFO L226 Difference]: Without dead ends: 4459 [2023-11-26 12:00:29,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:00:29,592 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 57 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:29,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 463 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:29,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4459 states. [2023-11-26 12:00:29,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4459 to 4445. [2023-11-26 12:00:29,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4445 states, 4444 states have (on average 1.3827632763276327) internal successors, (6145), 4444 states have internal predecessors, (6145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:29,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4445 states to 4445 states and 6145 transitions. [2023-11-26 12:00:29,736 INFO L78 Accepts]: Start accepts. Automaton has 4445 states and 6145 transitions. Word has length 297 [2023-11-26 12:00:29,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:29,737 INFO L495 AbstractCegarLoop]: Abstraction has 4445 states and 6145 transitions. [2023-11-26 12:00:29,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:29,738 INFO L276 IsEmpty]: Start isEmpty. Operand 4445 states and 6145 transitions. [2023-11-26 12:00:29,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2023-11-26 12:00:29,749 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:29,749 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:29,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:29,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:29,957 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:29,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:29,958 INFO L85 PathProgramCache]: Analyzing trace with hash 958592602, now seen corresponding path program 1 times [2023-11-26 12:00:29,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:29,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550770258] [2023-11-26 12:00:29,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:29,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:30,196 INFO L134 CoverageAnalysis]: Checked inductivity of 977 backedges. 320 proven. 22 refuted. 0 times theorem prover too weak. 635 trivial. 0 not checked. [2023-11-26 12:00:30,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:30,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550770258] [2023-11-26 12:00:30,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550770258] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:00:30,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993608037] [2023-11-26 12:00:30,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:30,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:30,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:30,199 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:00:30,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 12:00:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:30,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:00:30,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:30,492 INFO L134 CoverageAnalysis]: Checked inductivity of 977 backedges. 320 proven. 22 refuted. 0 times theorem prover too weak. 635 trivial. 0 not checked. [2023-11-26 12:00:30,492 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:00:30,609 INFO L134 CoverageAnalysis]: Checked inductivity of 977 backedges. 320 proven. 22 refuted. 0 times theorem prover too weak. 635 trivial. 0 not checked. [2023-11-26 12:00:30,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993608037] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:00:30,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:00:30,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-26 12:00:30,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331148584] [2023-11-26 12:00:30,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:00:30,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 12:00:30,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:30,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 12:00:30,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-26 12:00:30,616 INFO L87 Difference]: Start difference. First operand 4445 states and 6145 transitions. Second operand has 11 states, 11 states have (on average 19.818181818181817) internal successors, (218), 11 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:31,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:31,376 INFO L93 Difference]: Finished difference Result 6992 states and 9753 transitions. [2023-11-26 12:00:31,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:00:31,377 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 19.818181818181817) internal successors, (218), 11 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 297 [2023-11-26 12:00:31,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:31,386 INFO L225 Difference]: With dead ends: 6992 [2023-11-26 12:00:31,386 INFO L226 Difference]: Without dead ends: 4567 [2023-11-26 12:00:31,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 588 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-11-26 12:00:31,392 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 249 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:31,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 1690 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 816 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 12:00:31,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4567 states. [2023-11-26 12:00:31,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4567 to 4445. [2023-11-26 12:00:31,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4445 states, 4444 states have (on average 1.38006300630063) internal successors, (6133), 4444 states have internal predecessors, (6133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:31,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4445 states to 4445 states and 6133 transitions. [2023-11-26 12:00:31,569 INFO L78 Accepts]: Start accepts. Automaton has 4445 states and 6133 transitions. Word has length 297 [2023-11-26 12:00:31,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:31,569 INFO L495 AbstractCegarLoop]: Abstraction has 4445 states and 6133 transitions. [2023-11-26 12:00:31,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 19.818181818181817) internal successors, (218), 11 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:31,570 INFO L276 IsEmpty]: Start isEmpty. Operand 4445 states and 6133 transitions. [2023-11-26 12:00:31,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-11-26 12:00:31,581 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:31,581 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:31,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:31,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:31,788 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:31,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:31,789 INFO L85 PathProgramCache]: Analyzing trace with hash -33134890, now seen corresponding path program 1 times [2023-11-26 12:00:31,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:31,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483911464] [2023-11-26 12:00:31,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:31,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:31,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:31,990 INFO L134 CoverageAnalysis]: Checked inductivity of 977 backedges. 442 proven. 11 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2023-11-26 12:00:31,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:31,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483911464] [2023-11-26 12:00:31,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483911464] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:00:31,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498469417] [2023-11-26 12:00:31,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:31,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:31,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:31,993 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:00:32,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 12:00:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:32,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:00:32,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:32,268 INFO L134 CoverageAnalysis]: Checked inductivity of 977 backedges. 320 proven. 22 refuted. 0 times theorem prover too weak. 635 trivial. 0 not checked. [2023-11-26 12:00:32,268 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:00:32,386 INFO L134 CoverageAnalysis]: Checked inductivity of 977 backedges. 320 proven. 22 refuted. 0 times theorem prover too weak. 635 trivial. 0 not checked. [2023-11-26 12:00:32,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498469417] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:00:32,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:00:32,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 10 [2023-11-26 12:00:32,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62098551] [2023-11-26 12:00:32,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:00:32,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 12:00:32,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:32,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 12:00:32,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:00:32,391 INFO L87 Difference]: Start difference. First operand 4445 states and 6133 transitions. Second operand has 10 states, 10 states have (on average 31.0) internal successors, (310), 10 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:33,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:33,232 INFO L93 Difference]: Finished difference Result 5812 states and 8067 transitions. [2023-11-26 12:00:33,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 12:00:33,232 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 31.0) internal successors, (310), 10 states have internal predecessors, (310), 0 states have call successors, (0), 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 298 [2023-11-26 12:00:33,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:33,238 INFO L225 Difference]: With dead ends: 5812 [2023-11-26 12:00:33,238 INFO L226 Difference]: Without dead ends: 2272 [2023-11-26 12:00:33,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 607 GetRequests, 594 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2023-11-26 12:00:33,244 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 494 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:33,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 930 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 12:00:33,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2023-11-26 12:00:33,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 2206. [2023-11-26 12:00:33,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 2205 states have (on average 1.3782312925170068) internal successors, (3039), 2205 states have internal predecessors, (3039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:33,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 3039 transitions. [2023-11-26 12:00:33,343 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 3039 transitions. Word has length 298 [2023-11-26 12:00:33,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:33,344 INFO L495 AbstractCegarLoop]: Abstraction has 2206 states and 3039 transitions. [2023-11-26 12:00:33,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 31.0) internal successors, (310), 10 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:33,344 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 3039 transitions. [2023-11-26 12:00:33,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2023-11-26 12:00:33,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:33,353 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:33,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:33,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:33,567 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:33,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:33,569 INFO L85 PathProgramCache]: Analyzing trace with hash 344730930, now seen corresponding path program 1 times [2023-11-26 12:00:33,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:33,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155130201] [2023-11-26 12:00:33,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:33,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:33,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:33,803 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 443 proven. 11 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2023-11-26 12:00:33,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:33,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155130201] [2023-11-26 12:00:33,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155130201] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:00:33,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638225142] [2023-11-26 12:00:33,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:33,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:33,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:33,806 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:00:33,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 12:00:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:33,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:00:33,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:34,052 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 443 proven. 11 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2023-11-26 12:00:34,052 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:00:34,145 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 443 proven. 11 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2023-11-26 12:00:34,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638225142] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:00:34,146 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:00:34,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-11-26 12:00:34,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486574578] [2023-11-26 12:00:34,146 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:00:34,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:00:34,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:34,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:00:34,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:00:34,149 INFO L87 Difference]: Start difference. First operand 2206 states and 3039 transitions. Second operand has 6 states, 6 states have (on average 36.333333333333336) internal successors, (218), 6 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:34,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:34,740 INFO L93 Difference]: Finished difference Result 5608 states and 7835 transitions. [2023-11-26 12:00:34,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:00:34,741 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 36.333333333333336) internal successors, (218), 6 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 299 [2023-11-26 12:00:34,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:34,749 INFO L225 Difference]: With dead ends: 5608 [2023-11-26 12:00:34,749 INFO L226 Difference]: Without dead ends: 3267 [2023-11-26 12:00:34,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 604 GetRequests, 598 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:00:34,754 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 246 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:34,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 827 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 12:00:34,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3267 states. [2023-11-26 12:00:34,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3267 to 2392. [2023-11-26 12:00:34,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2392 states, 2391 states have (on average 1.3889585947302383) internal successors, (3321), 2391 states have internal predecessors, (3321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:34,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 3321 transitions. [2023-11-26 12:00:34,893 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 3321 transitions. Word has length 299 [2023-11-26 12:00:34,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:34,893 INFO L495 AbstractCegarLoop]: Abstraction has 2392 states and 3321 transitions. [2023-11-26 12:00:34,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.333333333333336) internal successors, (218), 6 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:34,894 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 3321 transitions. [2023-11-26 12:00:34,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2023-11-26 12:00:34,903 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:34,903 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 13, 13, 13, 13, 13, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:34,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:35,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:35,112 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:35,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:35,113 INFO L85 PathProgramCache]: Analyzing trace with hash -935099928, now seen corresponding path program 1 times [2023-11-26 12:00:35,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:35,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711542295] [2023-11-26 12:00:35,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:35,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:35,294 INFO L134 CoverageAnalysis]: Checked inductivity of 1152 backedges. 595 proven. 4 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2023-11-26 12:00:35,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:35,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711542295] [2023-11-26 12:00:35,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711542295] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:00:35,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793654222] [2023-11-26 12:00:35,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:35,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:35,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:35,296 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:00:35,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 12:00:35,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:35,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:00:35,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:35,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1152 backedges. 595 proven. 4 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2023-11-26 12:00:35,558 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:00:35,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1152 backedges. 595 proven. 4 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2023-11-26 12:00:35,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793654222] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:00:35,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:00:35,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-11-26 12:00:35,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800109955] [2023-11-26 12:00:35,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:00:35,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:00:35,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:35,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:00:35,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:00:35,643 INFO L87 Difference]: Start difference. First operand 2392 states and 3321 transitions. Second operand has 6 states, 6 states have (on average 36.0) internal successors, (216), 6 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:35,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:35,928 INFO L93 Difference]: Finished difference Result 3415 states and 4690 transitions. [2023-11-26 12:00:35,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:00:35,928 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 36.0) internal successors, (216), 6 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 322 [2023-11-26 12:00:35,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:35,929 INFO L225 Difference]: With dead ends: 3415 [2023-11-26 12:00:35,929 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 12:00:35,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 648 GetRequests, 643 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:00:35,934 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 115 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:35,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 348 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:00:35,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 12:00:35,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 12:00:35,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:35,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 12:00:35,940 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 322 [2023-11-26 12:00:35,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:35,940 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 12:00:35,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.0) internal successors, (216), 6 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:35,941 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 12:00:35,941 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 12:00:35,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 12:00:35,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:36,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:36,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 12:00:38,501 INFO L899 garLoopResultBuilder]: For program point L367(lines 367 371) no Hoare annotation was computed. [2023-11-26 12:00:38,502 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 252) no Hoare annotation was computed. [2023-11-26 12:00:38,503 INFO L899 garLoopResultBuilder]: For program point L202(lines 202 551) no Hoare annotation was computed. [2023-11-26 12:00:38,503 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 562) no Hoare annotation was computed. [2023-11-26 12:00:38,503 INFO L899 garLoopResultBuilder]: For program point L235-2(lines 213 545) no Hoare annotation was computed. [2023-11-26 12:00:38,503 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 573) no Hoare annotation was computed. [2023-11-26 12:00:38,503 INFO L899 garLoopResultBuilder]: For program point L501-1(lines 501 513) no Hoare annotation was computed. [2023-11-26 12:00:38,504 INFO L899 garLoopResultBuilder]: For program point L435(lines 435 439) no Hoare annotation was computed. [2023-11-26 12:00:38,504 INFO L899 garLoopResultBuilder]: For program point L237(lines 237 242) no Hoare annotation was computed. [2023-11-26 12:00:38,504 INFO L899 garLoopResultBuilder]: For program point L205(lines 205 550) no Hoare annotation was computed. [2023-11-26 12:00:38,504 INFO L899 garLoopResultBuilder]: For program point L172(lines 172 561) no Hoare annotation was computed. [2023-11-26 12:00:38,504 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 572) no Hoare annotation was computed. [2023-11-26 12:00:38,505 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 540) no Hoare annotation was computed. [2023-11-26 12:00:38,505 INFO L899 garLoopResultBuilder]: For program point L504(lines 504 509) no Hoare annotation was computed. [2023-11-26 12:00:38,505 INFO L899 garLoopResultBuilder]: For program point L471(lines 471 482) no Hoare annotation was computed. [2023-11-26 12:00:38,505 INFO L899 garLoopResultBuilder]: For program point L471-1(lines 471 482) no Hoare annotation was computed. [2023-11-26 12:00:38,506 INFO L899 garLoopResultBuilder]: For program point L273(lines 273 277) no Hoare annotation was computed. [2023-11-26 12:00:38,507 INFO L899 garLoopResultBuilder]: For program point L273-2(lines 213 545) no Hoare annotation was computed. [2023-11-26 12:00:38,507 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4433#1(lines 151 568) no Hoare annotation was computed. [2023-11-26 12:00:38,508 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 410) no Hoare annotation was computed. [2023-11-26 12:00:38,508 INFO L899 garLoopResultBuilder]: For program point L340(lines 340 344) no Hoare annotation was computed. [2023-11-26 12:00:38,508 INFO L899 garLoopResultBuilder]: For program point L340-2(lines 213 545) no Hoare annotation was computed. [2023-11-26 12:00:38,508 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 549) no Hoare annotation was computed. [2023-11-26 12:00:38,508 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 560) no Hoare annotation was computed. [2023-11-26 12:00:38,508 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 571) no Hoare annotation was computed. [2023-11-26 12:00:38,512 INFO L895 garLoopResultBuilder]: At program point L109-1(lines 109 612) the Hoare annotation is: (let ((.cse4 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0))) (let ((.cse2 (= 4416 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse11 (= 4384 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse12 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 1)) (.cse9 (= 12292 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse5 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse7 (= 4368 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse8 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (.cse10 (= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse13 (= 4560 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|)) (.cse14 (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse0 (<= |ULTIMATE.start_ssl3_connect_~ag_Y~0#1| 208)) (.cse1 (not .cse4)) (.cse15 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4528)) (.cse3 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) (.cse6 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6) (and .cse4 .cse6 .cse2 .cse3) (and .cse7 .cse0 .cse1 .cse8) (and .cse4 .cse6 .cse9 .cse8) (and .cse10 (= 3 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|) .cse0 .cse1 .cse3) (and .cse0 .cse11 .cse12 .cse1) (and .cse4 .cse11 .cse12 .cse6) (and .cse4 .cse6 .cse13 (= 4560 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) .cse3) (and .cse0 .cse1 .cse9 .cse8) (and .cse0 .cse5 .cse1) (and .cse4 .cse7 .cse6 .cse8) (and .cse14 .cse4 .cse6 .cse15 .cse3) (and .cse10 .cse4 .cse6 .cse13 .cse3) (= 3 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (and .cse14 .cse0 .cse1 .cse15 .cse3) (and .cse4 .cse6 (= 48 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))))) [2023-11-26 12:00:38,513 INFO L899 garLoopResultBuilder]: For program point L473(lines 473 479) no Hoare annotation was computed. [2023-11-26 12:00:38,513 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4417#1(lines 145 570) no Hoare annotation was computed. [2023-11-26 12:00:38,514 INFO L899 garLoopResultBuilder]: For program point L243(lines 243 248) no Hoare annotation was computed. [2023-11-26 12:00:38,514 INFO L899 garLoopResultBuilder]: For program point L310(lines 310 314) no Hoare annotation was computed. [2023-11-26 12:00:38,514 INFO L899 garLoopResultBuilder]: For program point L310-2(lines 310 314) no Hoare annotation was computed. [2023-11-26 12:00:38,515 INFO L899 garLoopResultBuilder]: For program point L178(lines 178 559) no Hoare annotation was computed. [2023-11-26 12:00:38,515 INFO L899 garLoopResultBuilder]: For program point L145(lines 145 570) no Hoare annotation was computed. [2023-11-26 12:00:38,515 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 581) no Hoare annotation was computed. [2023-11-26 12:00:38,515 INFO L899 garLoopResultBuilder]: For program point L443(lines 443 447) no Hoare annotation was computed. [2023-11-26 12:00:38,515 INFO L899 garLoopResultBuilder]: For program point L443-2(lines 213 545) no Hoare annotation was computed. [2023-11-26 12:00:38,515 INFO L899 garLoopResultBuilder]: For program point L311(line 311) no Hoare annotation was computed. [2023-11-26 12:00:38,516 INFO L899 garLoopResultBuilder]: For program point L311-2(line 311) no Hoare annotation was computed. [2023-11-26 12:00:38,516 INFO L899 garLoopResultBuilder]: For program point L311-4(line 311) no Hoare annotation was computed. [2023-11-26 12:00:38,516 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4481#1(lines 175 560) no Hoare annotation was computed. [2023-11-26 12:00:38,516 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 382) no Hoare annotation was computed. [2023-11-26 12:00:38,516 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4513#1(lines 187 556) no Hoare annotation was computed. [2023-11-26 12:00:38,516 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 417) no Hoare annotation was computed. [2023-11-26 12:00:38,517 INFO L899 garLoopResultBuilder]: For program point L412-2(lines 412 417) no Hoare annotation was computed. [2023-11-26 12:00:38,517 INFO L899 garLoopResultBuilder]: For program point L313(line 313) no Hoare annotation was computed. [2023-11-26 12:00:38,517 INFO L899 garLoopResultBuilder]: For program point L313-2(line 313) no Hoare annotation was computed. [2023-11-26 12:00:38,517 INFO L899 garLoopResultBuilder]: For program point L181(lines 181 558) no Hoare annotation was computed. [2023-11-26 12:00:38,517 INFO L899 garLoopResultBuilder]: For program point L313-4(line 313) no Hoare annotation was computed. [2023-11-26 12:00:38,517 INFO L899 garLoopResultBuilder]: For program point L148(lines 148 569) no Hoare annotation was computed. [2023-11-26 12:00:38,517 INFO L899 garLoopResultBuilder]: For program point L115(lines 115 580) no Hoare annotation was computed. [2023-11-26 12:00:38,518 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_ERROR#1(lines 76 630) no Hoare annotation was computed. [2023-11-26 12:00:38,518 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 92) no Hoare annotation was computed. [2023-11-26 12:00:38,518 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4449#1(lines 157 566) no Hoare annotation was computed. [2023-11-26 12:00:38,518 INFO L899 garLoopResultBuilder]: For program point L613(lines 76 630) no Hoare annotation was computed. [2023-11-26 12:00:38,518 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 557) no Hoare annotation was computed. [2023-11-26 12:00:38,518 INFO L899 garLoopResultBuilder]: For program point L151(lines 151 568) no Hoare annotation was computed. [2023-11-26 12:00:38,518 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 579) no Hoare annotation was computed. [2023-11-26 12:00:38,519 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4497#1(lines 181 558) no Hoare annotation was computed. [2023-11-26 12:00:38,519 INFO L899 garLoopResultBuilder]: For program point L383(lines 383 387) no Hoare annotation was computed. [2023-11-26 12:00:38,519 INFO L899 garLoopResultBuilder]: For program point L383-2(lines 383 387) no Hoare annotation was computed. [2023-11-26 12:00:38,519 INFO L899 garLoopResultBuilder]: For program point L218(lines 115 580) no Hoare annotation was computed. [2023-11-26 12:00:38,519 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4561#1(lines 199 552) no Hoare annotation was computed. [2023-11-26 12:00:38,519 INFO L899 garLoopResultBuilder]: For program point L582(lines 582 610) no Hoare annotation was computed. [2023-11-26 12:00:38,519 INFO L899 garLoopResultBuilder]: For program point L87(lines 87 91) no Hoare annotation was computed. [2023-11-26 12:00:38,520 INFO L899 garLoopResultBuilder]: For program point L87-2(lines 84 92) no Hoare annotation was computed. [2023-11-26 12:00:38,520 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 607) no Hoare annotation was computed. [2023-11-26 12:00:38,520 INFO L899 garLoopResultBuilder]: For program point L517-1(lines 213 545) no Hoare annotation was computed. [2023-11-26 12:00:38,520 INFO L899 garLoopResultBuilder]: For program point L352(lines 352 357) no Hoare annotation was computed. [2023-11-26 12:00:38,521 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 290) no Hoare annotation was computed. [2023-11-26 12:00:38,521 INFO L899 garLoopResultBuilder]: For program point L319-1(lines 319 333) no Hoare annotation was computed. [2023-11-26 12:00:38,521 INFO L899 garLoopResultBuilder]: For program point L187(lines 187 556) no Hoare annotation was computed. [2023-11-26 12:00:38,521 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 567) no Hoare annotation was computed. [2023-11-26 12:00:38,521 INFO L899 garLoopResultBuilder]: For program point L121(lines 121 578) no Hoare annotation was computed. [2023-11-26 12:00:38,521 INFO L899 garLoopResultBuilder]: For program point L617(lines 617 621) no Hoare annotation was computed. [2023-11-26 12:00:38,522 INFO L899 garLoopResultBuilder]: For program point L584(lines 584 593) no Hoare annotation was computed. [2023-11-26 12:00:38,522 INFO L899 garLoopResultBuilder]: For program point L617-2(lines 617 621) no Hoare annotation was computed. [2023-11-26 12:00:38,522 INFO L899 garLoopResultBuilder]: For program point L584-2(lines 583 605) no Hoare annotation was computed. [2023-11-26 12:00:38,522 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4529#1(lines 193 554) no Hoare annotation was computed. [2023-11-26 12:00:38,522 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 590) no Hoare annotation was computed. [2023-11-26 12:00:38,522 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 459) no Hoare annotation was computed. [2023-11-26 12:00:38,522 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 12:00:38,523 INFO L899 garLoopResultBuilder]: For program point L223(lines 223 227) no Hoare annotation was computed. [2023-11-26 12:00:38,523 INFO L899 garLoopResultBuilder]: For program point L190(lines 190 555) no Hoare annotation was computed. [2023-11-26 12:00:38,524 INFO L899 garLoopResultBuilder]: For program point L157(lines 157 566) no Hoare annotation was computed. [2023-11-26 12:00:38,524 INFO L899 garLoopResultBuilder]: For program point L223-2(lines 213 545) no Hoare annotation was computed. [2023-11-26 12:00:38,524 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 577) no Hoare annotation was computed. [2023-11-26 12:00:38,524 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4385#1(lines 133 574) no Hoare annotation was computed. [2023-11-26 12:00:38,524 INFO L899 garLoopResultBuilder]: For program point $Ultimate##192(lines 501 513) no Hoare annotation was computed. [2023-11-26 12:00:38,524 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 492) no Hoare annotation was computed. [2023-11-26 12:00:38,524 INFO L899 garLoopResultBuilder]: For program point $Ultimate##197(lines 517 521) no Hoare annotation was computed. [2023-11-26 12:00:38,525 INFO L899 garLoopResultBuilder]: For program point L323(lines 323 327) no Hoare annotation was computed. [2023-11-26 12:00:38,525 INFO L899 garLoopResultBuilder]: For program point L323-2(lines 321 333) no Hoare annotation was computed. [2023-11-26 12:00:38,525 INFO L899 garLoopResultBuilder]: For program point L522-1(lines 522 526) no Hoare annotation was computed. [2023-11-26 12:00:38,525 INFO L899 garLoopResultBuilder]: For program point L423(lines 423 427) no Hoare annotation was computed. [2023-11-26 12:00:38,525 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4369#1(lines 127 576) no Hoare annotation was computed. [2023-11-26 12:00:38,525 INFO L899 garLoopResultBuilder]: For program point $Ultimate##137(lines 319 333) no Hoare annotation was computed. [2023-11-26 12:00:38,526 INFO L899 garLoopResultBuilder]: For program point L259(lines 259 264) no Hoare annotation was computed. [2023-11-26 12:00:38,526 INFO L899 garLoopResultBuilder]: For program point L193(lines 193 554) no Hoare annotation was computed. [2023-11-26 12:00:38,526 INFO L899 garLoopResultBuilder]: For program point L160(lines 160 565) no Hoare annotation was computed. [2023-11-26 12:00:38,526 INFO L899 garLoopResultBuilder]: For program point L127(lines 127 576) no Hoare annotation was computed. [2023-11-26 12:00:38,526 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 102) no Hoare annotation was computed. [2023-11-26 12:00:38,526 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 76 630) no Hoare annotation was computed. [2023-11-26 12:00:38,527 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4467#1(lines 163 564) no Hoare annotation was computed. [2023-11-26 12:00:38,527 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 99) no Hoare annotation was computed. [2023-11-26 12:00:38,527 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 12:00:38,527 INFO L899 garLoopResultBuilder]: For program point L493(lines 493 497) no Hoare annotation was computed. [2023-11-26 12:00:38,527 INFO L899 garLoopResultBuilder]: For program point L493-2(lines 493 497) no Hoare annotation was computed. [2023-11-26 12:00:38,527 INFO L899 garLoopResultBuilder]: For program point L295(lines 295 303) no Hoare annotation was computed. [2023-11-26 12:00:38,527 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 553) no Hoare annotation was computed. [2023-11-26 12:00:38,528 INFO L899 garLoopResultBuilder]: For program point L163(lines 163 564) no Hoare annotation was computed. [2023-11-26 12:00:38,528 INFO L899 garLoopResultBuilder]: For program point L130(lines 130 575) no Hoare annotation was computed. [2023-11-26 12:00:38,528 INFO L899 garLoopResultBuilder]: For program point $Ultimate##209(lines 582 610) no Hoare annotation was computed. [2023-11-26 12:00:38,528 INFO L899 garLoopResultBuilder]: For program point L395(lines 395 399) no Hoare annotation was computed. [2023-11-26 12:00:38,528 INFO L899 garLoopResultBuilder]: For program point L362(lines 362 366) no Hoare annotation was computed. [2023-11-26 12:00:38,528 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 624) no Hoare annotation was computed. [2023-11-26 12:00:38,529 INFO L899 garLoopResultBuilder]: For program point L628(lines 76 630) no Hoare annotation was computed. [2023-11-26 12:00:38,529 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 601) no Hoare annotation was computed. [2023-11-26 12:00:38,529 INFO L899 garLoopResultBuilder]: For program point L529(lines 529 533) no Hoare annotation was computed. [2023-11-26 12:00:38,529 INFO L899 garLoopResultBuilder]: For program point L529-2(lines 529 533) no Hoare annotation was computed. [2023-11-26 12:00:38,529 INFO L899 garLoopResultBuilder]: For program point L298(lines 298 302) no Hoare annotation was computed. [2023-11-26 12:00:38,529 INFO L899 garLoopResultBuilder]: For program point L298-2(lines 213 545) no Hoare annotation was computed. [2023-11-26 12:00:38,529 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 552) no Hoare annotation was computed. [2023-11-26 12:00:38,530 INFO L899 garLoopResultBuilder]: For program point L166(lines 166 563) no Hoare annotation was computed. [2023-11-26 12:00:38,530 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 574) no Hoare annotation was computed. [2023-11-26 12:00:38,530 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 468) no Hoare annotation was computed. [2023-11-26 12:00:38,534 INFO L445 BasicCegarLoop]: Path program 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] [2023-11-26 12:00:38,537 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:00:38,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:00:38 BoogieIcfgContainer [2023-11-26 12:00:38,570 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:00:38,571 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:00:38,571 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:00:38,571 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:00:38,572 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:19" (3/4) ... [2023-11-26 12:00:38,574 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 12:00:38,600 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-26 12:00:38,602 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-26 12:00:38,603 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 12:00:38,604 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 12:00:38,790 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 12:00:38,791 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 12:00:38,791 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:00:38,793 INFO L158 Benchmark]: Toolchain (without parser) took 20933.03ms. Allocated memory was 144.7MB in the beginning and 379.6MB in the end (delta: 234.9MB). Free memory was 101.3MB in the beginning and 274.2MB in the end (delta: -172.9MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. [2023-11-26 12:00:38,793 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 144.7MB. Free memory is still 112.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:00:38,794 INFO L158 Benchmark]: CACSL2BoogieTranslator took 558.35ms. Allocated memory is still 144.7MB. Free memory was 101.3MB in the beginning and 85.5MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 12:00:38,795 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.79ms. Allocated memory is still 144.7MB. Free memory was 85.5MB in the beginning and 82.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:00:38,795 INFO L158 Benchmark]: Boogie Preprocessor took 117.86ms. Allocated memory is still 144.7MB. Free memory was 82.5MB in the beginning and 79.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:00:38,795 INFO L158 Benchmark]: RCFGBuilder took 922.29ms. Allocated memory was 144.7MB in the beginning and 205.5MB in the end (delta: 60.8MB). Free memory was 79.2MB in the beginning and 168.5MB in the end (delta: -89.3MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2023-11-26 12:00:38,798 INFO L158 Benchmark]: TraceAbstraction took 19032.30ms. Allocated memory was 205.5MB in the beginning and 379.6MB in the end (delta: 174.1MB). Free memory was 167.5MB in the beginning and 283.7MB in the end (delta: -116.2MB). Peak memory consumption was 233.3MB. Max. memory is 16.1GB. [2023-11-26 12:00:38,799 INFO L158 Benchmark]: Witness Printer took 220.87ms. Allocated memory is still 379.6MB. Free memory was 283.7MB in the beginning and 274.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 12:00:38,807 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 144.7MB. Free memory is still 112.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 558.35ms. Allocated memory is still 144.7MB. Free memory was 101.3MB in the beginning and 85.5MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.79ms. Allocated memory is still 144.7MB. Free memory was 85.5MB in the beginning and 82.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 117.86ms. Allocated memory is still 144.7MB. Free memory was 82.5MB in the beginning and 79.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 922.29ms. Allocated memory was 144.7MB in the beginning and 205.5MB in the end (delta: 60.8MB). Free memory was 79.2MB in the beginning and 168.5MB in the end (delta: -89.3MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. * TraceAbstraction took 19032.30ms. Allocated memory was 205.5MB in the beginning and 379.6MB in the end (delta: 174.1MB). Free memory was 167.5MB in the beginning and 283.7MB in the end (delta: -116.2MB). Peak memory consumption was 233.3MB. Max. memory is 16.1GB. * Witness Printer took 220.87ms. Allocated memory is still 379.6MB. Free memory was 283.7MB in the beginning and 274.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 624]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 125 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.9s, OverallIterations: 25, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2510 SdHoareTripleChecker+Valid, 4.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2510 mSDsluCounter, 9700 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4821 mSDsCounter, 634 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3989 IncrementalHoareTripleChecker+Invalid, 4623 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 634 mSolverCounterUnsat, 4879 mSDtfsCounter, 3989 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3365 GetRequests, 3299 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4643occurred in iteration=19, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 25 MinimizatonAttempts, 1939 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 96 NumberOfFragments, 225 HoareAnnotationTreeSize, 1 FomulaSimplifications, 2069 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 1 FomulaSimplificationsInter, 1666 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 6589 NumberOfCodeBlocks, 6589 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 7769 ConstructedInterpolants, 0 QuantifiedInterpolants, 10880 SizeOfPredicates, 4 NumberOfNonLiveVariables, 3740 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 36 InterpolantComputations, 21 PerfectInterpolantSequences, 23232/23464 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((((((((((((((((((((ag_Y <= 208) && !((s__hit == 0))) && (4416 == s__state)) && (blastFlag <= 4)) || (((s__hit == 0) && (2 == blastFlag)) && (48 == ag_Z))) || ((((s__hit == 0) && (48 == ag_Z)) && (4416 == s__state)) && (blastFlag <= 4))) || ((((4368 == s__state) && (ag_Y <= 208)) && !((s__hit == 0))) && (blastFlag == 0))) || ((((s__hit == 0) && (48 == ag_Z)) && (12292 == s__state)) && (blastFlag == 0))) || (((((4352 == s__state) && (3 == s__s3__tmp__next_state___0)) && (ag_Y <= 208)) && !((s__hit == 0))) && (blastFlag <= 4))) || ((((ag_Y <= 208) && (4384 == s__state)) && (blastFlag == 1)) && !((s__hit == 0)))) || ((((s__hit == 0) && (4384 == s__state)) && (blastFlag == 1)) && (48 == ag_Z))) || (((((s__hit == 0) && (48 == ag_Z)) && (4560 == s__s3__tmp__next_state___0)) && (4560 == s__state)) && (blastFlag <= 4))) || ((((ag_Y <= 208) && !((s__hit == 0))) && (12292 == s__state)) && (blastFlag == 0))) || (((ag_Y <= 208) && (2 == blastFlag)) && !((s__hit == 0)))) || ((((s__hit == 0) && (4368 == s__state)) && (48 == ag_Z)) && (blastFlag == 0))) || (((((4432 <= s__state) && (s__hit == 0)) && (48 == ag_Z)) && (s__state <= 4528)) && (blastFlag <= 4))) || (((((4352 == s__state) && (s__hit == 0)) && (48 == ag_Z)) && (4560 == s__s3__tmp__next_state___0)) && (blastFlag <= 4))) || (3 == s__state)) || (((((4432 <= s__state) && (ag_Y <= 208)) && !((s__hit == 0))) && (s__state <= 4528)) && (blastFlag <= 4))) || (((s__hit == 0) && (48 == ag_Z)) && (48 == s__state))) RESULT: Ultimate proved your program to be correct! [2023-11-26 12:00:38,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee2b939-abc8-453c-9fb1-c6b7f44dcae3/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE