./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/s3_srvr_2a.BV.c.cil.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_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/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_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/s3_srvr_2a.BV.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/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_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/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 b8cfead7c1f307a9ba2676fad86c005fa434c5b4bc168c34fe90a644ea9973b2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:06:16,878 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:06:16,943 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 12:06:16,953 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:06:16,956 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:06:16,991 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:06:16,992 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:06:16,992 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:06:16,994 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:06:16,999 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:06:17,000 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:06:17,000 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:06:17,001 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:06:17,003 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:06:17,003 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:06:17,004 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:06:17,004 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:06:17,005 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:06:17,005 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:06:17,006 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:06:17,006 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:06:17,007 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:06:17,007 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:06:17,008 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:06:17,008 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:06:17,009 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:06:17,009 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:06:17,010 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:06:17,011 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:06:17,011 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:06:17,013 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:06:17,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:06:17,013 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:06:17,014 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:06:17,014 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:06:17,014 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:06:17,014 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:06:17,015 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:06:17,015 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:06:17,015 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:06:17,016 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:06:17,016 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:06:17,017 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_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8cfead7c1f307a9ba2676fad86c005fa434c5b4bc168c34fe90a644ea9973b2 [2023-11-26 12:06:17,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:06:17,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:06:17,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:06:17,363 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:06:17,363 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:06:17,365 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/bitvector/s3_srvr_2a.BV.c.cil.c [2023-11-26 12:06:20,467 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:06:20,772 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:06:20,773 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/sv-benchmarks/c/bitvector/s3_srvr_2a.BV.c.cil.c [2023-11-26 12:06:20,787 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/data/1c9c1c98c/88fb7d2e049e4c9fb5335dfe31eeb275/FLAGe39ee594a [2023-11-26 12:06:20,805 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/data/1c9c1c98c/88fb7d2e049e4c9fb5335dfe31eeb275 [2023-11-26 12:06:20,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:06:20,816 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:06:20,820 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:06:20,820 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:06:20,826 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:06:20,827 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:06:20" (1/1) ... [2023-11-26 12:06:20,828 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@541b681d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:20, skipping insertion in model container [2023-11-26 12:06:20,828 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:06:20" (1/1) ... [2023-11-26 12:06:20,899 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:06:21,137 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_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/sv-benchmarks/c/bitvector/s3_srvr_2a.BV.c.cil.c[44872,44885] [2023-11-26 12:06:21,159 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:06:21,170 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:06:21,239 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_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/sv-benchmarks/c/bitvector/s3_srvr_2a.BV.c.cil.c[44872,44885] [2023-11-26 12:06:21,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:06:21,257 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:06:21,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:21 WrapperNode [2023-11-26 12:06:21,258 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:06:21,259 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:06:21,259 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:06:21,259 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:06:21,271 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:21" (1/1) ... [2023-11-26 12:06:21,283 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:21" (1/1) ... [2023-11-26 12:06:21,325 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 575 [2023-11-26 12:06:21,331 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:06:21,332 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:06:21,332 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:06:21,332 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:06:21,345 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:21" (1/1) ... [2023-11-26 12:06:21,345 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:21" (1/1) ... [2023-11-26 12:06:21,360 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:21" (1/1) ... [2023-11-26 12:06:21,387 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 12:06:21,387 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:21" (1/1) ... [2023-11-26 12:06:21,388 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:21" (1/1) ... [2023-11-26 12:06:21,411 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:21" (1/1) ... [2023-11-26 12:06:21,418 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:21" (1/1) ... [2023-11-26 12:06:21,425 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:21" (1/1) ... [2023-11-26 12:06:21,427 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:21" (1/1) ... [2023-11-26 12:06:21,431 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:06:21,432 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:06:21,433 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:06:21,433 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:06:21,434 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:21" (1/1) ... [2023-11-26 12:06:21,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:06:21,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:21,474 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:06:21,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:06:21,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:06:21,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:06:21,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:06:21,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:06:21,631 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:06:21,634 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:06:21,654 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-26 12:06:22,339 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2023-11-26 12:06:22,341 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2023-11-26 12:06:22,342 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:06:22,398 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:06:22,399 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 12:06:22,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:06:22 BoogieIcfgContainer [2023-11-26 12:06:22,399 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:06:22,402 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:06:22,402 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:06:22,406 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:06:22,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:06:20" (1/3) ... [2023-11-26 12:06:22,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e2812f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:06:22, skipping insertion in model container [2023-11-26 12:06:22,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:21" (2/3) ... [2023-11-26 12:06:22,408 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e2812f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:06:22, skipping insertion in model container [2023-11-26 12:06:22,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:06:22" (3/3) ... [2023-11-26 12:06:22,409 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_2a.BV.c.cil.c [2023-11-26 12:06:22,427 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:06:22,427 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 12:06:22,479 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:06:22,486 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;@4cbcd9e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:06:22,486 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 12:06:22,490 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 127 states have (on average 1.795275590551181) internal successors, (228), 128 states have internal predecessors, (228), 0 states have call successors, (0), 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 12:06:22,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-26 12:06:22,500 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:22,500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:22,501 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:22,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:22,505 INFO L85 PathProgramCache]: Analyzing trace with hash -885659394, now seen corresponding path program 1 times [2023-11-26 12:06:22,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:22,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946981700] [2023-11-26 12:06:22,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:22,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:22,944 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 12:06:22,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:22,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946981700] [2023-11-26 12:06:22,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946981700] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:22,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:22,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:22,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473456695] [2023-11-26 12:06:22,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:22,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:22,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:22,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:22,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:22,986 INFO L87 Difference]: Start difference. First operand has 129 states, 127 states have (on average 1.795275590551181) internal successors, (228), 128 states have internal predecessors, (228), 0 states have call successors, (0), 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 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 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 12:06:23,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:23,192 INFO L93 Difference]: Finished difference Result 262 states and 463 transitions. [2023-11-26 12:06:23,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:23,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2023-11-26 12:06:23,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:23,205 INFO L225 Difference]: With dead ends: 262 [2023-11-26 12:06:23,205 INFO L226 Difference]: Without dead ends: 124 [2023-11-26 12:06:23,209 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 12:06:23,212 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 16 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:23,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 302 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:06:23,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-11-26 12:06:23,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 121. [2023-11-26 12:06:23,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 120 states have (on average 1.5083333333333333) internal successors, (181), 120 states have internal predecessors, (181), 0 states have call successors, (0), 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 12:06:23,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 181 transitions. [2023-11-26 12:06:23,259 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 181 transitions. Word has length 42 [2023-11-26 12:06:23,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:23,260 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 181 transitions. [2023-11-26 12:06:23,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 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 12:06:23,260 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 181 transitions. [2023-11-26 12:06:23,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-26 12:06:23,263 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:23,263 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:23,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:06:23,264 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:23,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:23,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1758820122, now seen corresponding path program 1 times [2023-11-26 12:06:23,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:23,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739356419] [2023-11-26 12:06:23,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:23,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:23,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:23,458 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:23,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:23,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739356419] [2023-11-26 12:06:23,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739356419] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:23,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:23,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:06:23,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501618962] [2023-11-26 12:06:23,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:23,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:23,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:23,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:23,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:23,487 INFO L87 Difference]: Start difference. First operand 121 states and 181 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:23,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:23,553 INFO L93 Difference]: Finished difference Result 323 states and 494 transitions. [2023-11-26 12:06:23,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:23,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2023-11-26 12:06:23,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:23,557 INFO L225 Difference]: With dead ends: 323 [2023-11-26 12:06:23,557 INFO L226 Difference]: Without dead ends: 219 [2023-11-26 12:06:23,558 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 12:06:23,560 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 110 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:23,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 333 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:06:23,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-11-26 12:06:23,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2023-11-26 12:06:23,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.5137614678899083) internal successors, (330), 218 states have internal predecessors, (330), 0 states have call successors, (0), 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 12:06:23,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 330 transitions. [2023-11-26 12:06:23,584 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 330 transitions. Word has length 57 [2023-11-26 12:06:23,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:23,585 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 330 transitions. [2023-11-26 12:06:23,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:23,585 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 330 transitions. [2023-11-26 12:06:23,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-26 12:06:23,589 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:23,589 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:23,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:06:23,589 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:23,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:23,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1335173400, now seen corresponding path program 1 times [2023-11-26 12:06:23,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:23,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353305491] [2023-11-26 12:06:23,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:23,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:23,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:23,658 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:23,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:23,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353305491] [2023-11-26 12:06:23,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353305491] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:23,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:23,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:23,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042160991] [2023-11-26 12:06:23,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:23,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:23,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:23,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:23,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:23,661 INFO L87 Difference]: Start difference. First operand 219 states and 330 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:23,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:23,690 INFO L93 Difference]: Finished difference Result 423 states and 642 transitions. [2023-11-26 12:06:23,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:23,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2023-11-26 12:06:23,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:23,693 INFO L225 Difference]: With dead ends: 423 [2023-11-26 12:06:23,694 INFO L226 Difference]: Without dead ends: 221 [2023-11-26 12:06:23,695 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 12:06:23,697 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 6 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:23,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 315 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:06:23,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-11-26 12:06:23,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2023-11-26 12:06:23,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 220 states have (on average 1.509090909090909) internal successors, (332), 220 states have internal predecessors, (332), 0 states have call successors, (0), 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 12:06:23,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 332 transitions. [2023-11-26 12:06:23,715 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 332 transitions. Word has length 57 [2023-11-26 12:06:23,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:23,716 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 332 transitions. [2023-11-26 12:06:23,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:23,716 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 332 transitions. [2023-11-26 12:06:23,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-26 12:06:23,719 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:23,719 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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 12:06:23,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:06:23,720 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:23,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:23,721 INFO L85 PathProgramCache]: Analyzing trace with hash 808134731, now seen corresponding path program 1 times [2023-11-26 12:06:23,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:23,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958969074] [2023-11-26 12:06:23,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:23,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:23,841 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-26 12:06:23,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:23,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958969074] [2023-11-26 12:06:23,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958969074] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:23,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:23,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:06:23,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884649099] [2023-11-26 12:06:23,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:23,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:23,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:23,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:23,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:23,846 INFO L87 Difference]: Start difference. First operand 221 states and 332 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 12:06:24,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:24,048 INFO L93 Difference]: Finished difference Result 512 states and 793 transitions. [2023-11-26 12:06:24,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:24,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-11-26 12:06:24,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:24,051 INFO L225 Difference]: With dead ends: 512 [2023-11-26 12:06:24,052 INFO L226 Difference]: Without dead ends: 310 [2023-11-26 12:06:24,053 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 12:06:24,055 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 14 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:24,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 263 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:06:24,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-11-26 12:06:24,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 302. [2023-11-26 12:06:24,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 301 states have (on average 1.4053156146179402) internal successors, (423), 301 states have internal predecessors, (423), 0 states have call successors, (0), 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 12:06:24,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 423 transitions. [2023-11-26 12:06:24,073 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 423 transitions. Word has length 77 [2023-11-26 12:06:24,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:24,074 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 423 transitions. [2023-11-26 12:06:24,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 12:06:24,074 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 423 transitions. [2023-11-26 12:06:24,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-26 12:06:24,078 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:24,078 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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 12:06:24,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 12:06:24,079 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:24,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:24,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1231781453, now seen corresponding path program 1 times [2023-11-26 12:06:24,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:24,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867645121] [2023-11-26 12:06:24,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:24,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:24,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:24,149 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-26 12:06:24,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:24,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867645121] [2023-11-26 12:06:24,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867645121] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:24,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:24,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:06:24,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245174603] [2023-11-26 12:06:24,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:24,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:24,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:24,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:24,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:24,153 INFO L87 Difference]: Start difference. First operand 302 states and 423 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 12:06:24,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:24,301 INFO L93 Difference]: Finished difference Result 613 states and 867 transitions. [2023-11-26 12:06:24,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:24,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-11-26 12:06:24,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:24,305 INFO L225 Difference]: With dead ends: 613 [2023-11-26 12:06:24,305 INFO L226 Difference]: Without dead ends: 330 [2023-11-26 12:06:24,306 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 12:06:24,307 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 12 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:24,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 264 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:06:24,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2023-11-26 12:06:24,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 324. [2023-11-26 12:06:24,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 323 states have (on average 1.3931888544891642) internal successors, (450), 323 states have internal predecessors, (450), 0 states have call successors, (0), 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 12:06:24,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 450 transitions. [2023-11-26 12:06:24,336 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 450 transitions. Word has length 77 [2023-11-26 12:06:24,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:24,339 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 450 transitions. [2023-11-26 12:06:24,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 12:06:24,339 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 450 transitions. [2023-11-26 12:06:24,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-26 12:06:24,346 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:24,347 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1] [2023-11-26 12:06:24,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 12:06:24,347 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:24,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:24,367 INFO L85 PathProgramCache]: Analyzing trace with hash -382395928, now seen corresponding path program 1 times [2023-11-26 12:06:24,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:24,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140948313] [2023-11-26 12:06:24,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:24,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:24,482 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-26 12:06:24,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:24,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140948313] [2023-11-26 12:06:24,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140948313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:24,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:24,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:06:24,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87194342] [2023-11-26 12:06:24,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:24,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:24,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:24,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:24,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:24,486 INFO L87 Difference]: Start difference. First operand 324 states and 450 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:24,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:24,631 INFO L93 Difference]: Finished difference Result 701 states and 997 transitions. [2023-11-26 12:06:24,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:24,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-11-26 12:06:24,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:24,635 INFO L225 Difference]: With dead ends: 701 [2023-11-26 12:06:24,636 INFO L226 Difference]: Without dead ends: 396 [2023-11-26 12:06:24,636 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 12:06:24,638 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 28 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:24,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 263 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:06:24,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2023-11-26 12:06:24,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 372. [2023-11-26 12:06:24,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 371 states have (on average 1.3692722371967656) internal successors, (508), 371 states have internal predecessors, (508), 0 states have call successors, (0), 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 12:06:24,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 508 transitions. [2023-11-26 12:06:24,654 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 508 transitions. Word has length 96 [2023-11-26 12:06:24,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:24,655 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 508 transitions. [2023-11-26 12:06:24,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:24,656 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 508 transitions. [2023-11-26 12:06:24,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-26 12:06:24,659 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:24,659 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:24,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 12:06:24,660 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:24,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:24,660 INFO L85 PathProgramCache]: Analyzing trace with hash -376941569, now seen corresponding path program 1 times [2023-11-26 12:06:24,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:24,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491938478] [2023-11-26 12:06:24,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:24,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:24,848 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-26 12:06:24,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:24,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491938478] [2023-11-26 12:06:24,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491938478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:24,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:24,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:06:24,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45277361] [2023-11-26 12:06:24,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:24,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:24,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:24,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:24,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:24,853 INFO L87 Difference]: Start difference. First operand 372 states and 508 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 12:06:24,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:24,893 INFO L93 Difference]: Finished difference Result 888 states and 1222 transitions. [2023-11-26 12:06:24,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:24,894 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 116 [2023-11-26 12:06:24,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:24,897 INFO L225 Difference]: With dead ends: 888 [2023-11-26 12:06:24,898 INFO L226 Difference]: Without dead ends: 535 [2023-11-26 12:06:24,898 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 12:06:24,900 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 110 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:24,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 467 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:06:24,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2023-11-26 12:06:24,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2023-11-26 12:06:24,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 534 states have (on average 1.3707865168539326) internal successors, (732), 534 states have internal predecessors, (732), 0 states have call successors, (0), 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 12:06:24,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 732 transitions. [2023-11-26 12:06:24,918 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 732 transitions. Word has length 116 [2023-11-26 12:06:24,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:24,919 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 732 transitions. [2023-11-26 12:06:24,919 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 12:06:24,920 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 732 transitions. [2023-11-26 12:06:24,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-26 12:06:24,922 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:24,923 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:24,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 12:06:24,923 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:24,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:24,924 INFO L85 PathProgramCache]: Analyzing trace with hash -128795075, now seen corresponding path program 1 times [2023-11-26 12:06:24,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:24,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678699703] [2023-11-26 12:06:24,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:24,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:24,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:24,998 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-26 12:06:24,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:24,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678699703] [2023-11-26 12:06:24,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678699703] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:24,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:25,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:06:25,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674055944] [2023-11-26 12:06:25,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:25,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:25,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:25,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:25,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:25,003 INFO L87 Difference]: Start difference. First operand 535 states and 732 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 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 12:06:25,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:25,054 INFO L93 Difference]: Finished difference Result 1238 states and 1700 transitions. [2023-11-26 12:06:25,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:25,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 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 116 [2023-11-26 12:06:25,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:25,059 INFO L225 Difference]: With dead ends: 1238 [2023-11-26 12:06:25,059 INFO L226 Difference]: Without dead ends: 722 [2023-11-26 12:06:25,060 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 12:06:25,064 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 112 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:25,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 465 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:06:25,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2023-11-26 12:06:25,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 722. [2023-11-26 12:06:25,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 721 states have (on average 1.3675450762829404) internal successors, (986), 721 states have internal predecessors, (986), 0 states have call successors, (0), 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 12:06:25,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 986 transitions. [2023-11-26 12:06:25,095 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 986 transitions. Word has length 116 [2023-11-26 12:06:25,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:25,095 INFO L495 AbstractCegarLoop]: Abstraction has 722 states and 986 transitions. [2023-11-26 12:06:25,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 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 12:06:25,096 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 986 transitions. [2023-11-26 12:06:25,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-26 12:06:25,100 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:25,101 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-26 12:06:25,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 12:06:25,101 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:25,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:25,102 INFO L85 PathProgramCache]: Analyzing trace with hash 864017877, now seen corresponding path program 1 times [2023-11-26 12:06:25,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:25,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442890887] [2023-11-26 12:06:25,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:25,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:25,213 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-26 12:06:25,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:25,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442890887] [2023-11-26 12:06:25,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442890887] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:25,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:25,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:06:25,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916596141] [2023-11-26 12:06:25,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:25,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:25,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:25,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:25,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:25,219 INFO L87 Difference]: Start difference. First operand 722 states and 986 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:25,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:25,438 INFO L93 Difference]: Finished difference Result 1551 states and 2174 transitions. [2023-11-26 12:06:25,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:25,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2023-11-26 12:06:25,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:25,445 INFO L225 Difference]: With dead ends: 1551 [2023-11-26 12:06:25,445 INFO L226 Difference]: Without dead ends: 848 [2023-11-26 12:06:25,446 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 12:06:25,449 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 35 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:25,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 258 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:06:25,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2023-11-26 12:06:25,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 842. [2023-11-26 12:06:25,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 841 states have (on average 1.3329369797859691) internal successors, (1121), 841 states have internal predecessors, (1121), 0 states have call successors, (0), 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 12:06:25,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1121 transitions. [2023-11-26 12:06:25,475 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1121 transitions. Word has length 176 [2023-11-26 12:06:25,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:25,475 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1121 transitions. [2023-11-26 12:06:25,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:25,476 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1121 transitions. [2023-11-26 12:06:25,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-11-26 12:06:25,479 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:25,480 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-26 12:06:25,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 12:06:25,480 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:25,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:25,481 INFO L85 PathProgramCache]: Analyzing trace with hash -405478866, now seen corresponding path program 1 times [2023-11-26 12:06:25,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:25,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699706026] [2023-11-26 12:06:25,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:25,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:25,616 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-11-26 12:06:25,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:25,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699706026] [2023-11-26 12:06:25,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699706026] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:25,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:25,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:06:25,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640307906] [2023-11-26 12:06:25,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:25,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:25,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:25,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:25,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:25,619 INFO L87 Difference]: Start difference. First operand 842 states and 1121 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:25,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:25,788 INFO L93 Difference]: Finished difference Result 1833 states and 2519 transitions. [2023-11-26 12:06:25,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:25,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2023-11-26 12:06:25,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:25,794 INFO L225 Difference]: With dead ends: 1833 [2023-11-26 12:06:25,794 INFO L226 Difference]: Without dead ends: 962 [2023-11-26 12:06:25,796 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 12:06:25,797 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 36 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:25,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 258 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:06:25,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2023-11-26 12:06:25,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 962. [2023-11-26 12:06:25,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 961 states have (on average 1.3121748178980228) internal successors, (1261), 961 states have internal predecessors, (1261), 0 states have call successors, (0), 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 12:06:25,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1261 transitions. [2023-11-26 12:06:25,823 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1261 transitions. Word has length 217 [2023-11-26 12:06:25,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:25,824 INFO L495 AbstractCegarLoop]: Abstraction has 962 states and 1261 transitions. [2023-11-26 12:06:25,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:25,824 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1261 transitions. [2023-11-26 12:06:25,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-11-26 12:06:25,829 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:25,829 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-26 12:06:25,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 12:06:25,829 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:25,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:25,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1242759366, now seen corresponding path program 1 times [2023-11-26 12:06:25,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:25,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354484530] [2023-11-26 12:06:25,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:25,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:25,998 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 410 proven. 15 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-11-26 12:06:25,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:25,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354484530] [2023-11-26 12:06:25,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354484530] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:06:25,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14843159] [2023-11-26 12:06:25,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:26,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:26,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:26,003 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:06:26,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 12:06:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:26,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:06:26,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:06:26,317 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 410 proven. 15 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-11-26 12:06:26,318 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:06:26,473 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 410 proven. 15 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-11-26 12:06:26,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14843159] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:06:26,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:06:26,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-11-26 12:06:26,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294590122] [2023-11-26 12:06:26,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:06:26,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:06:26,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:26,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:06:26,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:06:26,476 INFO L87 Difference]: Start difference. First operand 962 states and 1261 transitions. Second operand has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 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 12:06:27,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:27,303 INFO L93 Difference]: Finished difference Result 4182 states and 5807 transitions. [2023-11-26 12:06:27,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 12:06:27,304 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 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 244 [2023-11-26 12:06:27,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:27,323 INFO L225 Difference]: With dead ends: 4182 [2023-11-26 12:06:27,323 INFO L226 Difference]: Without dead ends: 3239 [2023-11-26 12:06:27,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 489 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:06:27,328 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 337 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:27,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 1162 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-26 12:06:27,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3239 states. [2023-11-26 12:06:27,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3239 to 2375. [2023-11-26 12:06:27,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2375 states, 2374 states have (on average 1.3163437236731255) internal successors, (3125), 2374 states have internal predecessors, (3125), 0 states have call successors, (0), 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 12:06:27,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2375 states to 2375 states and 3125 transitions. [2023-11-26 12:06:27,409 INFO L78 Accepts]: Start accepts. Automaton has 2375 states and 3125 transitions. Word has length 244 [2023-11-26 12:06:27,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:27,410 INFO L495 AbstractCegarLoop]: Abstraction has 2375 states and 3125 transitions. [2023-11-26 12:06:27,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 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 12:06:27,410 INFO L276 IsEmpty]: Start isEmpty. Operand 2375 states and 3125 transitions. [2023-11-26 12:06:27,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-11-26 12:06:27,417 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:27,417 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-26 12:06:27,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-26 12:06:27,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:27,624 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:27,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:27,627 INFO L85 PathProgramCache]: Analyzing trace with hash 657987716, now seen corresponding path program 1 times [2023-11-26 12:06:27,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:27,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800474107] [2023-11-26 12:06:27,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:27,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:27,731 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 380 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2023-11-26 12:06:27,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:27,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800474107] [2023-11-26 12:06:27,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800474107] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:27,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:27,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:06:27,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035709856] [2023-11-26 12:06:27,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:27,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:27,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:27,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:27,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:27,735 INFO L87 Difference]: Start difference. First operand 2375 states and 3125 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:27,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:27,850 INFO L93 Difference]: Finished difference Result 6595 states and 8751 transitions. [2023-11-26 12:06:27,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:27,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 244 [2023-11-26 12:06:27,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:27,868 INFO L225 Difference]: With dead ends: 6595 [2023-11-26 12:06:27,868 INFO L226 Difference]: Without dead ends: 3044 [2023-11-26 12:06:27,872 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 12:06:27,873 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 108 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:27,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 477 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:06:27,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3044 states. [2023-11-26 12:06:27,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3044 to 2944. [2023-11-26 12:06:27,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2944 states, 2943 states have (on average 1.3377505946313286) internal successors, (3937), 2943 states have internal predecessors, (3937), 0 states have call successors, (0), 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 12:06:27,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2944 states to 2944 states and 3937 transitions. [2023-11-26 12:06:27,971 INFO L78 Accepts]: Start accepts. Automaton has 2944 states and 3937 transitions. Word has length 244 [2023-11-26 12:06:27,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:27,972 INFO L495 AbstractCegarLoop]: Abstraction has 2944 states and 3937 transitions. [2023-11-26 12:06:27,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:27,972 INFO L276 IsEmpty]: Start isEmpty. Operand 2944 states and 3937 transitions. [2023-11-26 12:06:27,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2023-11-26 12:06:27,979 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:27,980 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-26 12:06:27,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 12:06:27,980 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:27,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:27,981 INFO L85 PathProgramCache]: Analyzing trace with hash 557502408, now seen corresponding path program 1 times [2023-11-26 12:06:27,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:27,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930194222] [2023-11-26 12:06:27,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:27,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:28,085 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 464 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2023-11-26 12:06:28,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:28,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930194222] [2023-11-26 12:06:28,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930194222] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:28,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:28,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:06:28,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906566824] [2023-11-26 12:06:28,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:28,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:28,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:28,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:28,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:28,089 INFO L87 Difference]: Start difference. First operand 2944 states and 3937 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:28,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:28,287 INFO L93 Difference]: Finished difference Result 6253 states and 8427 transitions. [2023-11-26 12:06:28,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:28,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 288 [2023-11-26 12:06:28,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:28,308 INFO L225 Difference]: With dead ends: 6253 [2023-11-26 12:06:28,309 INFO L226 Difference]: Without dead ends: 3328 [2023-11-26 12:06:28,313 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 12:06:28,314 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 17 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:28,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 263 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:06:28,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3328 states. [2023-11-26 12:06:28,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3328 to 3256. [2023-11-26 12:06:28,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3256 states, 3255 states have (on average 1.3238095238095238) internal successors, (4309), 3255 states have internal predecessors, (4309), 0 states have call successors, (0), 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 12:06:28,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3256 states to 3256 states and 4309 transitions. [2023-11-26 12:06:28,426 INFO L78 Accepts]: Start accepts. Automaton has 3256 states and 4309 transitions. Word has length 288 [2023-11-26 12:06:28,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:28,427 INFO L495 AbstractCegarLoop]: Abstraction has 3256 states and 4309 transitions. [2023-11-26 12:06:28,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:28,427 INFO L276 IsEmpty]: Start isEmpty. Operand 3256 states and 4309 transitions. [2023-11-26 12:06:28,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2023-11-26 12:06:28,435 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:28,436 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-26 12:06:28,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 12:06:28,436 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:28,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:28,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1731457442, now seen corresponding path program 1 times [2023-11-26 12:06:28,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:28,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465745937] [2023-11-26 12:06:28,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:28,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:28,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 592 proven. 0 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2023-11-26 12:06:28,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:28,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465745937] [2023-11-26 12:06:28,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465745937] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:28,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:28,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:06:28,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919785705] [2023-11-26 12:06:28,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:28,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:28,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:28,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:28,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:28,604 INFO L87 Difference]: Start difference. First operand 3256 states and 4309 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:28,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:28,830 INFO L93 Difference]: Finished difference Result 6841 states and 9099 transitions. [2023-11-26 12:06:28,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:28,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 310 [2023-11-26 12:06:28,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:28,852 INFO L225 Difference]: With dead ends: 6841 [2023-11-26 12:06:28,852 INFO L226 Difference]: Without dead ends: 3604 [2023-11-26 12:06:28,857 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 12:06:28,857 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 10 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:28,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 263 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:06:28,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3604 states. [2023-11-26 12:06:28,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3604 to 2943. [2023-11-26 12:06:28,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2943 states, 2942 states have (on average 1.3150917743031951) internal successors, (3869), 2942 states have internal predecessors, (3869), 0 states have call successors, (0), 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 12:06:28,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2943 states to 2943 states and 3869 transitions. [2023-11-26 12:06:28,961 INFO L78 Accepts]: Start accepts. Automaton has 2943 states and 3869 transitions. Word has length 310 [2023-11-26 12:06:28,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:28,961 INFO L495 AbstractCegarLoop]: Abstraction has 2943 states and 3869 transitions. [2023-11-26 12:06:28,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:28,962 INFO L276 IsEmpty]: Start isEmpty. Operand 2943 states and 3869 transitions. [2023-11-26 12:06:28,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2023-11-26 12:06:28,972 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:28,972 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-26 12:06:28,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 12:06:28,973 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:28,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:28,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1462364412, now seen corresponding path program 1 times [2023-11-26 12:06:28,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:28,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619376762] [2023-11-26 12:06:28,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:28,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:29,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1235 backedges. 651 proven. 0 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2023-11-26 12:06:29,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:29,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619376762] [2023-11-26 12:06:29,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619376762] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:29,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:29,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:06:29,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374115844] [2023-11-26 12:06:29,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:29,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:29,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:29,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:29,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:29,156 INFO L87 Difference]: Start difference. First operand 2943 states and 3869 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 12:06:29,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:29,327 INFO L93 Difference]: Finished difference Result 8779 states and 11543 transitions. [2023-11-26 12:06:29,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:29,328 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 341 [2023-11-26 12:06:29,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:29,361 INFO L225 Difference]: With dead ends: 8779 [2023-11-26 12:06:29,361 INFO L226 Difference]: Without dead ends: 5855 [2023-11-26 12:06:29,367 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 12:06:29,368 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 124 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 469 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 12:06:29,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 469 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:06:29,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5855 states. [2023-11-26 12:06:29,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5855 to 5676. [2023-11-26 12:06:29,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5676 states, 5675 states have (on average 1.317885462555066) internal successors, (7479), 5675 states have internal predecessors, (7479), 0 states have call successors, (0), 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 12:06:29,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5676 states to 5676 states and 7479 transitions. [2023-11-26 12:06:29,632 INFO L78 Accepts]: Start accepts. Automaton has 5676 states and 7479 transitions. Word has length 341 [2023-11-26 12:06:29,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:29,633 INFO L495 AbstractCegarLoop]: Abstraction has 5676 states and 7479 transitions. [2023-11-26 12:06:29,633 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 12:06:29,633 INFO L276 IsEmpty]: Start isEmpty. Operand 5676 states and 7479 transitions. [2023-11-26 12:06:29,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2023-11-26 12:06:29,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:29,647 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-26 12:06:29,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 12:06:29,648 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:29,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:29,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1398457759, now seen corresponding path program 1 times [2023-11-26 12:06:29,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:29,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821082411] [2023-11-26 12:06:29,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:29,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:29,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:29,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1235 backedges. 826 proven. 25 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2023-11-26 12:06:29,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:29,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821082411] [2023-11-26 12:06:29,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821082411] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:06:29,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372146502] [2023-11-26 12:06:29,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:29,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:29,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:29,833 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:06:29,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 12:06:30,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:30,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:06:30,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:06:30,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1235 backedges. 644 proven. 0 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2023-11-26 12:06:30,453 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:06:30,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372146502] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:30,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 12:06:30,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-11-26 12:06:30,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332329096] [2023-11-26 12:06:30,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:30,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:30,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:30,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:30,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:06:30,456 INFO L87 Difference]: Start difference. First operand 5676 states and 7479 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 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 12:06:30,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:30,557 INFO L93 Difference]: Finished difference Result 6512 states and 8591 transitions. [2023-11-26 12:06:30,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:30,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 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 342 [2023-11-26 12:06:30,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:30,598 INFO L225 Difference]: With dead ends: 6512 [2023-11-26 12:06:30,598 INFO L226 Difference]: Without dead ends: 4705 [2023-11-26 12:06:30,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:06:30,602 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 82 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:30,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 461 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:06:30,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4705 states. [2023-11-26 12:06:30,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4705 to 3691. [2023-11-26 12:06:30,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3691 states, 3690 states have (on average 1.3181571815718158) internal successors, (4864), 3690 states have internal predecessors, (4864), 0 states have call successors, (0), 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 12:06:30,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3691 states to 3691 states and 4864 transitions. [2023-11-26 12:06:30,741 INFO L78 Accepts]: Start accepts. Automaton has 3691 states and 4864 transitions. Word has length 342 [2023-11-26 12:06:30,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:30,742 INFO L495 AbstractCegarLoop]: Abstraction has 3691 states and 4864 transitions. [2023-11-26 12:06:30,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 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 12:06:30,742 INFO L276 IsEmpty]: Start isEmpty. Operand 3691 states and 4864 transitions. [2023-11-26 12:06:30,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2023-11-26 12:06:30,755 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:30,756 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 12:06:30,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-26 12:06:30,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:30,962 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:30,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:30,962 INFO L85 PathProgramCache]: Analyzing trace with hash 924929642, now seen corresponding path program 1 times [2023-11-26 12:06:30,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:30,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117457586] [2023-11-26 12:06:30,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:30,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:31,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:31,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1899 backedges. 1185 proven. 25 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2023-11-26 12:06:31,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:31,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117457586] [2023-11-26 12:06:31,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117457586] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:06:31,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384128346] [2023-11-26 12:06:31,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:31,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:31,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:31,211 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:06:31,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 12:06:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:31,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:06:31,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:06:31,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1899 backedges. 1185 proven. 25 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2023-11-26 12:06:31,523 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:06:31,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1899 backedges. 1185 proven. 25 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2023-11-26 12:06:31,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384128346] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:06:31,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:06:31,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-11-26 12:06:31,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141623377] [2023-11-26 12:06:31,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:06:31,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:06:31,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:31,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:06:31,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:06:31,669 INFO L87 Difference]: Start difference. First operand 3691 states and 4864 transitions. Second operand has 6 states, 6 states have (on average 41.666666666666664) internal successors, (250), 6 states have internal predecessors, (250), 0 states have call successors, (0), 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 12:06:32,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:32,341 INFO L93 Difference]: Finished difference Result 9136 states and 12427 transitions. [2023-11-26 12:06:32,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:06:32,351 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 41.666666666666664) internal successors, (250), 6 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 401 [2023-11-26 12:06:32,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:32,364 INFO L225 Difference]: With dead ends: 9136 [2023-11-26 12:06:32,364 INFO L226 Difference]: Without dead ends: 5305 [2023-11-26 12:06:32,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 808 GetRequests, 802 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 12:06:32,371 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 443 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:32,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 513 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 12:06:32,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5305 states. [2023-11-26 12:06:32,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5305 to 4664. [2023-11-26 12:06:32,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4664 states, 4663 states have (on average 1.3858031310315249) internal successors, (6462), 4663 states have internal predecessors, (6462), 0 states have call successors, (0), 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 12:06:32,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4664 states to 4664 states and 6462 transitions. [2023-11-26 12:06:32,587 INFO L78 Accepts]: Start accepts. Automaton has 4664 states and 6462 transitions. Word has length 401 [2023-11-26 12:06:32,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:32,588 INFO L495 AbstractCegarLoop]: Abstraction has 4664 states and 6462 transitions. [2023-11-26 12:06:32,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.666666666666664) internal successors, (250), 6 states have internal predecessors, (250), 0 states have call successors, (0), 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 12:06:32,589 INFO L276 IsEmpty]: Start isEmpty. Operand 4664 states and 6462 transitions. [2023-11-26 12:06:32,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2023-11-26 12:06:32,613 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:32,613 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 16, 16, 16, 14, 14, 12, 12, 10, 10, 8, 8, 8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:32,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 12:06:32,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:32,820 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:32,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:32,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1391389276, now seen corresponding path program 1 times [2023-11-26 12:06:32,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:32,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11519296] [2023-11-26 12:06:32,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:32,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:33,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2967 backedges. 1576 proven. 0 refuted. 0 times theorem prover too weak. 1391 trivial. 0 not checked. [2023-11-26 12:06:33,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:33,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11519296] [2023-11-26 12:06:33,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11519296] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:33,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:33,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:06:33,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382680337] [2023-11-26 12:06:33,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:33,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:33,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:33,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:33,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:33,166 INFO L87 Difference]: Start difference. First operand 4664 states and 6462 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 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 12:06:33,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:33,415 INFO L93 Difference]: Finished difference Result 9412 states and 12997 transitions. [2023-11-26 12:06:33,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:33,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 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 489 [2023-11-26 12:06:33,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:33,428 INFO L225 Difference]: With dead ends: 9412 [2023-11-26 12:06:33,428 INFO L226 Difference]: Without dead ends: 4767 [2023-11-26 12:06:33,435 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 12:06:33,436 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 14 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:33,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 263 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:06:33,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4767 states. [2023-11-26 12:06:33,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4767 to 4716. [2023-11-26 12:06:33,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4716 states, 4715 states have (on average 1.3575821845174973) internal successors, (6401), 4715 states have internal predecessors, (6401), 0 states have call successors, (0), 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 12:06:33,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4716 states to 4716 states and 6401 transitions. [2023-11-26 12:06:33,649 INFO L78 Accepts]: Start accepts. Automaton has 4716 states and 6401 transitions. Word has length 489 [2023-11-26 12:06:33,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:33,650 INFO L495 AbstractCegarLoop]: Abstraction has 4716 states and 6401 transitions. [2023-11-26 12:06:33,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 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 12:06:33,651 INFO L276 IsEmpty]: Start isEmpty. Operand 4716 states and 6401 transitions. [2023-11-26 12:06:33,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2023-11-26 12:06:33,673 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:33,674 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 16, 14, 14, 12, 12, 10, 10, 8, 8, 8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 12:06:33,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-26 12:06:33,675 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:33,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:33,676 INFO L85 PathProgramCache]: Analyzing trace with hash -2120440082, now seen corresponding path program 1 times [2023-11-26 12:06:33,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:33,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421207069] [2023-11-26 12:06:33,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:33,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:34,295 INFO L134 CoverageAnalysis]: Checked inductivity of 3033 backedges. 1646 proven. 193 refuted. 0 times theorem prover too weak. 1194 trivial. 0 not checked. [2023-11-26 12:06:34,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:34,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421207069] [2023-11-26 12:06:34,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421207069] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:06:34,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147262701] [2023-11-26 12:06:34,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:34,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:34,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:34,300 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:06:34,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 12:06:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:34,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 763 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:06:34,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:06:36,031 INFO L134 CoverageAnalysis]: Checked inductivity of 3033 backedges. 1694 proven. 226 refuted. 0 times theorem prover too weak. 1113 trivial. 0 not checked. [2023-11-26 12:06:36,031 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:06:37,258 INFO L134 CoverageAnalysis]: Checked inductivity of 3033 backedges. 1783 proven. 137 refuted. 0 times theorem prover too weak. 1113 trivial. 0 not checked. [2023-11-26 12:06:37,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147262701] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:06:37,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:06:37,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-26 12:06:37,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798463703] [2023-11-26 12:06:37,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:06:37,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 12:06:37,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:37,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 12:06:37,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-26 12:06:37,267 INFO L87 Difference]: Start difference. First operand 4716 states and 6401 transitions. Second operand has 11 states, 11 states have (on average 36.90909090909091) internal successors, (406), 11 states have internal predecessors, (406), 0 states have call successors, (0), 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 12:06:40,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:40,463 INFO L93 Difference]: Finished difference Result 22216 states and 29998 transitions. [2023-11-26 12:06:40,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-26 12:06:40,464 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 36.90909090909091) internal successors, (406), 11 states have internal predecessors, (406), 0 states have call successors, (0), 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 493 [2023-11-26 12:06:40,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:40,501 INFO L225 Difference]: With dead ends: 22216 [2023-11-26 12:06:40,501 INFO L226 Difference]: Without dead ends: 17339 [2023-11-26 12:06:40,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1017 GetRequests, 993 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=196, Invalid=454, Unknown=0, NotChecked=0, Total=650 [2023-11-26 12:06:40,511 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 1178 mSDsluCounter, 1234 mSDsCounter, 0 mSdLazyCounter, 2008 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 1553 SdHoareTripleChecker+Invalid, 2245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 2008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:40,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1178 Valid, 1553 Invalid, 2245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 2008 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-26 12:06:40,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17339 states. [2023-11-26 12:06:41,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17339 to 16165. [2023-11-26 12:06:41,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16165 states, 16164 states have (on average 1.3097624350408315) internal successors, (21171), 16164 states have internal predecessors, (21171), 0 states have call successors, (0), 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 12:06:41,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16165 states to 16165 states and 21171 transitions. [2023-11-26 12:06:41,174 INFO L78 Accepts]: Start accepts. Automaton has 16165 states and 21171 transitions. Word has length 493 [2023-11-26 12:06:41,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:41,175 INFO L495 AbstractCegarLoop]: Abstraction has 16165 states and 21171 transitions. [2023-11-26 12:06:41,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 36.90909090909091) internal successors, (406), 11 states have internal predecessors, (406), 0 states have call successors, (0), 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 12:06:41,175 INFO L276 IsEmpty]: Start isEmpty. Operand 16165 states and 21171 transitions. [2023-11-26 12:06:41,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2023-11-26 12:06:41,213 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:41,213 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 18, 16, 16, 14, 14, 12, 12, 10, 10, 10, 10, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-26 12:06:41,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-26 12:06:41,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:41,421 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:41,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:41,422 INFO L85 PathProgramCache]: Analyzing trace with hash -2129564387, now seen corresponding path program 2 times [2023-11-26 12:06:41,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:41,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505019606] [2023-11-26 12:06:41,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:41,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:41,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:41,735 INFO L134 CoverageAnalysis]: Checked inductivity of 3868 backedges. 1249 proven. 15 refuted. 0 times theorem prover too weak. 2604 trivial. 0 not checked. [2023-11-26 12:06:41,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:41,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505019606] [2023-11-26 12:06:41,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505019606] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:06:41,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171563587] [2023-11-26 12:06:41,736 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 12:06:41,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:41,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:41,738 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:06:41,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 12:06:42,045 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 12:06:42,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 12:06:42,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 845 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:06:42,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:06:42,143 INFO L134 CoverageAnalysis]: Checked inductivity of 3868 backedges. 1249 proven. 15 refuted. 0 times theorem prover too weak. 2604 trivial. 0 not checked. [2023-11-26 12:06:42,144 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:06:42,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3868 backedges. 1249 proven. 15 refuted. 0 times theorem prover too weak. 2604 trivial. 0 not checked. [2023-11-26 12:06:42,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171563587] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:06:42,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:06:42,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2023-11-26 12:06:42,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656660371] [2023-11-26 12:06:42,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:06:42,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:06:42,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:42,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:06:42,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:06:42,252 INFO L87 Difference]: Start difference. First operand 16165 states and 21171 transitions. Second operand has 8 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 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 12:06:42,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:42,932 INFO L93 Difference]: Finished difference Result 22128 states and 28837 transitions. [2023-11-26 12:06:42,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 12:06:42,933 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 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 561 [2023-11-26 12:06:42,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:42,933 INFO L225 Difference]: With dead ends: 22128 [2023-11-26 12:06:42,933 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 12:06:42,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1132 GetRequests, 1122 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2023-11-26 12:06:42,954 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 218 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:42,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 728 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 12:06:42,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 12:06:42,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 12:06:42,960 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 12:06:42,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 12:06:42,960 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 561 [2023-11-26 12:06:42,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:42,961 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 12:06:42,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 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 12:06:42,961 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 12:06:42,962 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 12:06:42,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 12:06:42,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 12:06:43,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:43,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 12:06:50,652 WARN L293 SmtUtils]: Spent 7.46s on a formula simplification. DAG size of input: 464 DAG size of output: 469 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-26 12:06:55,641 INFO L899 garLoopResultBuilder]: For program point L267(lines 267 272) no Hoare annotation was computed. [2023-11-26 12:06:55,642 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 608) no Hoare annotation was computed. [2023-11-26 12:06:55,642 INFO L899 garLoopResultBuilder]: For program point L168(lines 168 619) no Hoare annotation was computed. [2023-11-26 12:06:55,642 INFO L899 garLoopResultBuilder]: For program point L135(lines 135 630) no Hoare annotation was computed. [2023-11-26 12:06:55,642 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8593#1(lines 186 613) no Hoare annotation was computed. [2023-11-26 12:06:55,642 INFO L899 garLoopResultBuilder]: For program point L367(lines 367 398) no Hoare annotation was computed. [2023-11-26 12:06:55,643 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 338) no Hoare annotation was computed. [2023-11-26 12:06:55,643 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8529#1(lines 159 622) no Hoare annotation was computed. [2023-11-26 12:06:55,643 INFO L899 garLoopResultBuilder]: For program point L334-2(lines 334 338) no Hoare annotation was computed. [2023-11-26 12:06:55,643 INFO L899 garLoopResultBuilder]: For program point L533(lines 533 538) no Hoare annotation was computed. [2023-11-26 12:06:55,643 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8497#1(lines 147 626) no Hoare annotation was computed. [2023-11-26 12:06:55,643 INFO L899 garLoopResultBuilder]: For program point L567(lines 567 571) no Hoare annotation was computed. [2023-11-26 12:06:55,644 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 307) no Hoare annotation was computed. [2023-11-26 12:06:55,644 INFO L899 garLoopResultBuilder]: For program point L303-2(lines 221 599) no Hoare annotation was computed. [2023-11-26 12:06:55,644 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 607) no Hoare annotation was computed. [2023-11-26 12:06:55,644 INFO L899 garLoopResultBuilder]: For program point L171(lines 171 618) no Hoare annotation was computed. [2023-11-26 12:06:55,644 INFO L899 garLoopResultBuilder]: For program point L138(lines 138 629) no Hoare annotation was computed. [2023-11-26 12:06:55,644 INFO L899 garLoopResultBuilder]: For program point L370(lines 370 397) no Hoare annotation was computed. [2023-11-26 12:06:55,645 INFO L899 garLoopResultBuilder]: For program point L370-1(lines 370 397) no Hoare annotation was computed. [2023-11-26 12:06:55,645 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 394) no Hoare annotation was computed. [2023-11-26 12:06:55,645 INFO L899 garLoopResultBuilder]: For program point L669(lines 76 686) no Hoare annotation was computed. [2023-11-26 12:06:55,645 INFO L899 garLoopResultBuilder]: For program point L207(lines 207 606) no Hoare annotation was computed. [2023-11-26 12:06:55,645 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 617) no Hoare annotation was computed. [2023-11-26 12:06:55,645 INFO L899 garLoopResultBuilder]: For program point L141(lines 141 628) no Hoare annotation was computed. [2023-11-26 12:06:55,646 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 437) no Hoare annotation was computed. [2023-11-26 12:06:55,646 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 258) no Hoare annotation was computed. [2023-11-26 12:06:55,646 INFO L899 garLoopResultBuilder]: For program point L241-2(lines 221 599) no Hoare annotation was computed. [2023-11-26 12:06:55,646 INFO L899 garLoopResultBuilder]: For program point L638(lines 638 666) no Hoare annotation was computed. [2023-11-26 12:06:55,646 INFO L899 garLoopResultBuilder]: For program point L407(lines 407 413) no Hoare annotation was computed. [2023-11-26 12:06:55,646 INFO L899 garLoopResultBuilder]: For program point L374(lines 374 393) no Hoare annotation was computed. [2023-11-26 12:06:55,646 INFO L899 garLoopResultBuilder]: For program point L639(lines 639 663) no Hoare annotation was computed. [2023-11-26 12:06:55,647 INFO L899 garLoopResultBuilder]: For program point L573(lines 573 577) no Hoare annotation was computed. [2023-11-26 12:06:55,647 INFO L899 garLoopResultBuilder]: For program point L540(lines 540 544) no Hoare annotation was computed. [2023-11-26 12:06:55,647 INFO L899 garLoopResultBuilder]: For program point L507(lines 507 511) no Hoare annotation was computed. [2023-11-26 12:06:55,647 INFO L899 garLoopResultBuilder]: For program point L573-2(lines 573 577) no Hoare annotation was computed. [2023-11-26 12:06:55,647 INFO L899 garLoopResultBuilder]: For program point L540-2(lines 221 599) no Hoare annotation was computed. [2023-11-26 12:06:55,647 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 379) no Hoare annotation was computed. [2023-11-26 12:06:55,648 INFO L899 garLoopResultBuilder]: For program point L375-2(lines 374 391) no Hoare annotation was computed. [2023-11-26 12:06:55,648 INFO L899 garLoopResultBuilder]: For program point L243(lines 243 248) no Hoare annotation was computed. [2023-11-26 12:06:55,648 INFO L899 garLoopResultBuilder]: For program point L210(lines 210 605) no Hoare annotation was computed. [2023-11-26 12:06:55,648 INFO L899 garLoopResultBuilder]: For program point L177(lines 177 616) no Hoare annotation was computed. [2023-11-26 12:06:55,648 INFO L899 garLoopResultBuilder]: For program point L144(lines 144 627) no Hoare annotation was computed. [2023-11-26 12:06:55,650 INFO L895 garLoopResultBuilder]: At program point L111-2(lines 111 668) the Hoare annotation is: (let ((.cse24 (+ |ULTIMATE.start_ssl3_accept_~ag_X~0#1| |ULTIMATE.start_ssl3_accept_~ag_Y~0#1|))) (let ((.cse23 (div .cse24 2147483648))) (let ((.cse25 (* .cse23 4294967296)) (.cse26 (+ (* 2 |ULTIMATE.start_ssl3_accept_~ag_X~0#1|) (* 2 |ULTIMATE.start_ssl3_accept_~ag_Y~0#1|))) (.cse19 (mod .cse24 2147483648))) (let ((.cse21 (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|)) (.cse22 (< 1073741823 .cse19)) (.cse20 (= (+ .cse25 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) .cse26))) (let ((.cse12 (<= 8640 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse1 (= 8466 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse7 (or .cse20 (and (<= (+ 1073741824 (* .cse23 2147483648)) .cse24) (= (+ .cse25 |ULTIMATE.start_ssl3_accept_~s__state~0#1| 4294967296) .cse26)))) (.cse18 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8495)) (.cse9 (or .cse22 (< .cse19 4249))) (.cse11 (<= 8640 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|)) (.cse14 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8656)) (.cse15 (<= 8672 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse5 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1)) (.cse13 (not .cse21)) (.cse2 (= 2 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|)) (.cse3 (<= 8497 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|)) (.cse16 (<= 8497 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse4 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576)) (.cse8 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8655)) (.cse0 (or (< .cse19 4328) .cse22)) (.cse10 (= 3 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|)) (.cse6 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8448)) (.cse17 (= 3 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse6 .cse3 .cse4) (and (= 8464 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 0)) (and .cse2 .cse3 .cse4 .cse7 .cse8) (and .cse5 .cse9) (and .cse10 .cse11 .cse12 .cse13) (and .cse2 .cse13) (and .cse0 .cse14 .cse2 .cse4) (and .cse0 .cse2 .cse12 .cse4 .cse8) (and .cse15 .cse5) (and .cse0 .cse2 .cse6 .cse3 .cse4) (and .cse0 .cse2 (= 8544 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (and .cse0 .cse5 .cse16 .cse8) (and .cse5 .cse6 .cse17) (and .cse0 .cse1 .cse5) (and .cse15 .cse10 .cse13) (and .cse18 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8496) .cse2 .cse7) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8528) .cse0 .cse2) (and .cse18 .cse2 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8495) .cse9) (and .cse10 .cse11 .cse6 .cse13) (and (< (* 2 .cse19) (+ |ULTIMATE.start_ssl3_accept_~s__state~0#1| 1)) .cse14 .cse5) (and .cse5 .cse20) (and .cse15 .cse0 .cse10 .cse4) (and .cse5 .cse13) (and .cse0 .cse2 (= 8560 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (and .cse0 .cse2 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8512)) (and .cse0 .cse2 .cse3 .cse16 .cse4 .cse8) (and .cse0 .cse10 .cse6 .cse17 .cse21))))))) [2023-11-26 12:06:55,650 INFO L899 garLoopResultBuilder]: For program point L673(lines 673 677) no Hoare annotation was computed. [2023-11-26 12:06:55,651 INFO L899 garLoopResultBuilder]: For program point L640(lines 640 649) no Hoare annotation was computed. [2023-11-26 12:06:55,651 INFO L899 garLoopResultBuilder]: For program point L673-2(lines 673 677) no Hoare annotation was computed. [2023-11-26 12:06:55,651 INFO L899 garLoopResultBuilder]: For program point L640-2(lines 639 661) no Hoare annotation was computed. [2023-11-26 12:06:55,651 INFO L899 garLoopResultBuilder]: For program point L475(lines 475 479) no Hoare annotation was computed. [2023-11-26 12:06:55,651 INFO L899 garLoopResultBuilder]: For program point L343-1(lines 343 352) no Hoare annotation was computed. [2023-11-26 12:06:55,651 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8481#1(lines 129 632) no Hoare annotation was computed. [2023-11-26 12:06:55,652 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 646) no Hoare annotation was computed. [2023-11-26 12:06:55,652 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 604) no Hoare annotation was computed. [2023-11-26 12:06:55,652 INFO L899 garLoopResultBuilder]: For program point L180(lines 180 615) no Hoare annotation was computed. [2023-11-26 12:06:55,652 INFO L899 garLoopResultBuilder]: For program point L147(lines 147 626) no Hoare annotation was computed. [2023-11-26 12:06:55,652 INFO L899 garLoopResultBuilder]: For program point L114(lines 114 637) no Hoare annotation was computed. [2023-11-26 12:06:55,652 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 351) no Hoare annotation was computed. [2023-11-26 12:06:55,652 INFO L899 garLoopResultBuilder]: For program point L480(lines 480 491) no Hoare annotation was computed. [2023-11-26 12:06:55,653 INFO L899 garLoopResultBuilder]: For program point L447(lines 447 451) no Hoare annotation was computed. [2023-11-26 12:06:55,653 INFO L899 garLoopResultBuilder]: For program point L381(lines 364 399) no Hoare annotation was computed. [2023-11-26 12:06:55,653 INFO L899 garLoopResultBuilder]: For program point L249(lines 249 254) no Hoare annotation was computed. [2023-11-26 12:06:55,653 INFO L899 garLoopResultBuilder]: For program point L216(lines 216 603) no Hoare annotation was computed. [2023-11-26 12:06:55,653 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 614) no Hoare annotation was computed. [2023-11-26 12:06:55,653 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8657#1(lines 204 607) no Hoare annotation was computed. [2023-11-26 12:06:55,653 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 625) no Hoare annotation was computed. [2023-11-26 12:06:55,654 INFO L899 garLoopResultBuilder]: For program point L117(lines 117 636) no Hoare annotation was computed. [2023-11-26 12:06:55,654 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 93) no Hoare annotation was computed. [2023-11-26 12:06:55,654 INFO L899 garLoopResultBuilder]: For program point L383(lines 383 387) no Hoare annotation was computed. [2023-11-26 12:06:55,654 INFO L899 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2023-11-26 12:06:55,654 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 613) no Hoare annotation was computed. [2023-11-26 12:06:55,654 INFO L899 garLoopResultBuilder]: For program point L153(lines 153 624) no Hoare annotation was computed. [2023-11-26 12:06:55,654 INFO L899 garLoopResultBuilder]: For program point L120(lines 120 635) no Hoare annotation was computed. [2023-11-26 12:06:55,655 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 593) no Hoare annotation was computed. [2023-11-26 12:06:55,655 INFO L899 garLoopResultBuilder]: For program point L583-1(lines 583 593) no Hoare annotation was computed. [2023-11-26 12:06:55,655 INFO L899 garLoopResultBuilder]: For program point L484(lines 484 488) no Hoare annotation was computed. [2023-11-26 12:06:55,655 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 290) no Hoare annotation was computed. [2023-11-26 12:06:55,655 INFO L899 garLoopResultBuilder]: For program point L88(lines 88 92) no Hoare annotation was computed. [2023-11-26 12:06:55,655 INFO L899 garLoopResultBuilder]: For program point L88-2(lines 85 93) no Hoare annotation was computed. [2023-11-26 12:06:55,655 INFO L899 garLoopResultBuilder]: For program point L518(lines 518 522) no Hoare annotation was computed. [2023-11-26 12:06:55,656 INFO L899 garLoopResultBuilder]: For program point L320(lines 320 328) no Hoare annotation was computed. [2023-11-26 12:06:55,656 INFO L899 garLoopResultBuilder]: For program point L684(lines 76 686) no Hoare annotation was computed. [2023-11-26 12:06:55,656 INFO L899 garLoopResultBuilder]: For program point L651(lines 651 657) no Hoare annotation was computed. [2023-11-26 12:06:55,656 INFO L899 garLoopResultBuilder]: For program point $Ultimate##176(lines 457 469) no Hoare annotation was computed. [2023-11-26 12:06:55,656 INFO L899 garLoopResultBuilder]: For program point L552(lines 552 557) no Hoare annotation was computed. [2023-11-26 12:06:55,656 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8577#1(lines 180 615) no Hoare annotation was computed. [2023-11-26 12:06:55,656 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 612) no Hoare annotation was computed. [2023-11-26 12:06:55,657 INFO L899 garLoopResultBuilder]: For program point L156(lines 156 623) no Hoare annotation was computed. [2023-11-26 12:06:55,657 INFO L899 garLoopResultBuilder]: For program point L123(lines 123 634) no Hoare annotation was computed. [2023-11-26 12:06:55,657 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 590) no Hoare annotation was computed. [2023-11-26 12:06:55,657 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 12:06:55,657 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8641#1(lines 198 609) no Hoare annotation was computed. [2023-11-26 12:06:55,657 INFO L899 garLoopResultBuilder]: For program point L323(lines 323 327) no Hoare annotation was computed. [2023-11-26 12:06:55,657 INFO L899 garLoopResultBuilder]: For program point L323-2(lines 221 599) no Hoare annotation was computed. [2023-11-26 12:06:55,658 INFO L899 garLoopResultBuilder]: For program point L224(lines 117 636) no Hoare annotation was computed. [2023-11-26 12:06:55,658 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_ERROR#1(lines 76 686) no Hoare annotation was computed. [2023-11-26 12:06:55,658 INFO L899 garLoopResultBuilder]: For program point L192(lines 192 611) no Hoare annotation was computed. [2023-11-26 12:06:55,658 INFO L899 garLoopResultBuilder]: For program point L159(lines 159 622) no Hoare annotation was computed. [2023-11-26 12:06:55,658 INFO L899 garLoopResultBuilder]: For program point L126(lines 126 633) no Hoare annotation was computed. [2023-11-26 12:06:55,658 INFO L899 garLoopResultBuilder]: For program point L523(lines 523 527) no Hoare annotation was computed. [2023-11-26 12:06:55,658 INFO L899 garLoopResultBuilder]: For program point L523-2(lines 523 527) no Hoare annotation was computed. [2023-11-26 12:06:55,659 INFO L899 garLoopResultBuilder]: For program point L457-1(lines 457 469) no Hoare annotation was computed. [2023-11-26 12:06:55,659 INFO L899 garLoopResultBuilder]: For program point $Ultimate##130(lines 343 352) no Hoare annotation was computed. [2023-11-26 12:06:55,659 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8673#1(lines 210 605) no Hoare annotation was computed. [2023-11-26 12:06:55,659 INFO L899 garLoopResultBuilder]: For program point L425(lines 416 436) no Hoare annotation was computed. [2023-11-26 12:06:55,659 INFO L899 garLoopResultBuilder]: For program point L359(lines 359 363) no Hoare annotation was computed. [2023-11-26 12:06:55,659 INFO L899 garLoopResultBuilder]: For program point L359-2(lines 221 599) no Hoare annotation was computed. [2023-11-26 12:06:55,659 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 103) no Hoare annotation was computed. [2023-11-26 12:06:55,660 INFO L899 garLoopResultBuilder]: For program point L95-1(lines 76 686) no Hoare annotation was computed. [2023-11-26 12:06:55,660 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8609#1(lines 192 611) no Hoare annotation was computed. [2023-11-26 12:06:55,660 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 12:06:55,660 INFO L899 garLoopResultBuilder]: For program point $Ultimate##158(lines 405 442) no Hoare annotation was computed. [2023-11-26 12:06:55,669 INFO L899 garLoopResultBuilder]: For program point L195(lines 195 610) no Hoare annotation was computed. [2023-11-26 12:06:55,669 INFO L899 garLoopResultBuilder]: For program point L162(lines 162 621) no Hoare annotation was computed. [2023-11-26 12:06:55,669 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 632) no Hoare annotation was computed. [2023-11-26 12:06:55,669 INFO L899 garLoopResultBuilder]: For program point L96(lines 96 100) no Hoare annotation was computed. [2023-11-26 12:06:55,669 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8466#1(lines 138 629) no Hoare annotation was computed. [2023-11-26 12:06:55,670 INFO L899 garLoopResultBuilder]: For program point L460(lines 460 465) no Hoare annotation was computed. [2023-11-26 12:06:55,670 INFO L899 garLoopResultBuilder]: For program point $Ultimate##166(lines 416 436) no Hoare annotation was computed. [2023-11-26 12:06:55,670 INFO L899 garLoopResultBuilder]: For program point L229(lines 229 233) no Hoare annotation was computed. [2023-11-26 12:06:55,670 INFO L899 garLoopResultBuilder]: For program point L229-2(lines 221 599) no Hoare annotation was computed. [2023-11-26 12:06:55,670 INFO L899 garLoopResultBuilder]: For program point L428(lines 428 432) no Hoare annotation was computed. [2023-11-26 12:06:55,670 INFO L899 garLoopResultBuilder]: For program point $Ultimate##219(lines 638 666) no Hoare annotation was computed. [2023-11-26 12:06:55,671 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 680) no Hoare annotation was computed. [2023-11-26 12:06:55,671 INFO L899 garLoopResultBuilder]: For program point L198(lines 198 609) no Hoare annotation was computed. [2023-11-26 12:06:55,671 INFO L899 garLoopResultBuilder]: For program point L165(lines 165 620) no Hoare annotation was computed. [2023-11-26 12:06:55,671 INFO L899 garLoopResultBuilder]: For program point L132(lines 132 631) no Hoare annotation was computed. [2023-11-26 12:06:55,671 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8561#1(lines 171 618) no Hoare annotation was computed. [2023-11-26 12:06:55,671 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 566) no Hoare annotation was computed. [2023-11-26 12:06:55,671 INFO L899 garLoopResultBuilder]: For program point L496(lines 496 500) no Hoare annotation was computed. [2023-11-26 12:06:55,672 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 280) no Hoare annotation was computed. [2023-11-26 12:06:55,675 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:55,678 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:06:55,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:06:55 BoogieIcfgContainer [2023-11-26 12:06:55,710 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:06:55,710 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:06:55,711 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:06:55,711 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:06:55,712 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:06:22" (3/4) ... [2023-11-26 12:06:55,714 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 12:06:55,740 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-26 12:06:55,741 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-26 12:06:55,742 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 12:06:55,743 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 12:06:55,944 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 12:06:55,945 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 12:06:55,945 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:06:55,946 INFO L158 Benchmark]: Toolchain (without parser) took 35129.62ms. Allocated memory was 172.0MB in the beginning and 576.7MB in the end (delta: 404.8MB). Free memory was 143.1MB in the beginning and 317.6MB in the end (delta: -174.6MB). Peak memory consumption was 231.2MB. Max. memory is 16.1GB. [2023-11-26 12:06:55,950 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 115.3MB. Free memory was 65.4MB in the beginning and 65.3MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:06:55,951 INFO L158 Benchmark]: CACSL2BoogieTranslator took 438.16ms. Allocated memory is still 172.0MB. Free memory was 142.6MB in the beginning and 126.8MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 12:06:55,951 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.47ms. Allocated memory is still 172.0MB. Free memory was 126.4MB in the beginning and 123.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:06:55,952 INFO L158 Benchmark]: Boogie Preprocessor took 99.52ms. Allocated memory is still 172.0MB. Free memory was 123.4MB in the beginning and 120.5MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:06:55,952 INFO L158 Benchmark]: RCFGBuilder took 967.34ms. Allocated memory is still 172.0MB. Free memory was 120.5MB in the beginning and 134.1MB in the end (delta: -13.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-26 12:06:55,953 INFO L158 Benchmark]: TraceAbstraction took 33307.65ms. Allocated memory was 172.0MB in the beginning and 576.7MB in the end (delta: 404.8MB). Free memory was 133.6MB in the beginning and 327.1MB in the end (delta: -193.5MB). Peak memory consumption was 395.8MB. Max. memory is 16.1GB. [2023-11-26 12:06:55,954 INFO L158 Benchmark]: Witness Printer took 234.65ms. Allocated memory is still 576.7MB. Free memory was 327.1MB in the beginning and 317.6MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 12:06:55,961 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 115.3MB. Free memory was 65.4MB in the beginning and 65.3MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 438.16ms. Allocated memory is still 172.0MB. Free memory was 142.6MB in the beginning and 126.8MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.47ms. Allocated memory is still 172.0MB. Free memory was 126.4MB in the beginning and 123.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.52ms. Allocated memory is still 172.0MB. Free memory was 123.4MB in the beginning and 120.5MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 967.34ms. Allocated memory is still 172.0MB. Free memory was 120.5MB in the beginning and 134.1MB in the end (delta: -13.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 33307.65ms. Allocated memory was 172.0MB in the beginning and 576.7MB in the end (delta: 404.8MB). Free memory was 133.6MB in the beginning and 327.1MB in the end (delta: -193.5MB). Peak memory consumption was 395.8MB. Max. memory is 16.1GB. * Witness Printer took 234.65ms. Allocated memory is still 576.7MB. Free memory was 327.1MB in the beginning and 317.6MB 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: 680]: 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, 129 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 33.2s, OverallIterations: 20, TraceHistogramMax: 21, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 12.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3010 SdHoareTripleChecker+Valid, 5.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3010 mSDsluCounter, 9340 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4602 mSDsCounter, 566 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4938 IncrementalHoareTripleChecker+Invalid, 5504 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 566 mSolverCounterUnsat, 4738 mSDtfsCounter, 4938 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3841 GetRequests, 3776 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16165occurred in iteration=19, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 20 MinimizatonAttempts, 4803 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 207 NumberOfFragments, 642 HoareAnnotationTreeSize, 1 FomulaSimplifications, 2363 FormulaSimplificationTreeSizeReduction, 7.5s HoareSimplificationTime, 1 FomulaSimplificationsInter, 11606 FormulaSimplificationTreeSizeReductionInter, 5.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 6785 NumberOfCodeBlocks, 6785 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 8455 ConstructedInterpolants, 0 QuantifiedInterpolants, 19097 SizeOfPredicates, 6 NumberOfNonLiveVariables, 3202 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 29 InterpolantComputations, 16 PerfectInterpolantSequences, 37414/38160 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: 111]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648))) && (8466 == s__state)) && (2 == blastFlag)) && (8497 <= s__s3__tmp__next_state___0)) && (s__s3__tmp__next_state___0 <= 8576)) || ((((((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648))) && (blastFlag == 1)) && (s__state <= 8448)) && (8497 <= s__s3__tmp__next_state___0)) && (s__s3__tmp__next_state___0 <= 8576))) || ((8464 == s__state) && (blastFlag == 0))) || (((((2 == blastFlag) && (8497 <= s__s3__tmp__next_state___0)) && (s__s3__tmp__next_state___0 <= 8576)) && ((((((ag_X + ag_Y) / 2147483648) * 4294967296) + s__state) == ((2 * ag_X) + (2 * ag_Y))) || (((1073741824 + (((ag_X + ag_Y) / 2147483648) * 2147483648)) <= (ag_X + ag_Y)) && ((((((ag_X + ag_Y) / 2147483648) * 4294967296) + s__state) + 4294967296) == ((2 * ag_X) + (2 * ag_Y)))))) && (s__state <= 8655))) || ((blastFlag == 1) && ((1073741823 < ((ag_X + ag_Y) % 2147483648)) || (((ag_X + ag_Y) % 2147483648) < 4249)))) || ((((3 == blastFlag) && (8640 <= s__s3__tmp__next_state___0)) && (8640 <= s__state)) && !((0 == s__hit)))) || ((2 == blastFlag) && !((0 == s__hit)))) || (((((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648))) && (s__state == 8656)) && (2 == blastFlag)) && (s__s3__tmp__next_state___0 <= 8576))) || ((((((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648))) && (2 == blastFlag)) && (8640 <= s__state)) && (s__s3__tmp__next_state___0 <= 8576)) && (s__state <= 8655))) || ((8672 <= s__state) && (blastFlag == 1))) || ((((((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648))) && (2 == blastFlag)) && (s__state <= 8448)) && (8497 <= s__s3__tmp__next_state___0)) && (s__s3__tmp__next_state___0 <= 8576))) || ((((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648))) && (2 == blastFlag)) && (8544 == s__state))) || (((((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648))) && (blastFlag == 1)) && (8497 <= s__state)) && (s__state <= 8655))) || (((blastFlag == 1) && (s__state <= 8448)) && (3 == s__s3__tmp__next_state___0))) || ((((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648))) && (8466 == s__state)) && (blastFlag == 1))) || (((8672 <= s__state) && (3 == blastFlag)) && !((0 == s__hit)))) || ((((s__s3__tmp__next_state___0 <= 8495) && (s__state <= 8496)) && (2 == blastFlag)) && ((((((ag_X + ag_Y) / 2147483648) * 4294967296) + s__state) == ((2 * ag_X) + (2 * ag_Y))) || (((1073741824 + (((ag_X + ag_Y) / 2147483648) * 2147483648)) <= (ag_X + ag_Y)) && ((((((ag_X + ag_Y) / 2147483648) * 4294967296) + s__state) + 4294967296) == ((2 * ag_X) + (2 * ag_Y))))))) || (((s__state == 8528) && ((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648)))) && (2 == blastFlag))) || ((((s__s3__tmp__next_state___0 <= 8495) && (2 == blastFlag)) && (s__state <= 8495)) && ((1073741823 < ((ag_X + ag_Y) % 2147483648)) || (((ag_X + ag_Y) % 2147483648) < 4249)))) || ((((3 == blastFlag) && (8640 <= s__s3__tmp__next_state___0)) && (s__state <= 8448)) && !((0 == s__hit)))) || ((((2 * ((ag_X + ag_Y) % 2147483648)) < (s__state + 1)) && (s__state == 8656)) && (blastFlag == 1))) || ((blastFlag == 1) && (((((ag_X + ag_Y) / 2147483648) * 4294967296) + s__state) == ((2 * ag_X) + (2 * ag_Y))))) || ((((8672 <= s__state) && ((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648)))) && (3 == blastFlag)) && (s__s3__tmp__next_state___0 <= 8576))) || ((blastFlag == 1) && !((0 == s__hit)))) || ((((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648))) && (2 == blastFlag)) && (8560 == s__state))) || ((((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648))) && (2 == blastFlag)) && (s__state == 8512))) || (((((((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648))) && (2 == blastFlag)) && (8497 <= s__s3__tmp__next_state___0)) && (8497 <= s__state)) && (s__s3__tmp__next_state___0 <= 8576)) && (s__state <= 8655))) || ((((((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648))) && (3 == blastFlag)) && (s__state <= 8448)) && (3 == s__s3__tmp__next_state___0)) && (0 == s__hit))) RESULT: Ultimate proved your program to be correct! [2023-11-26 12:06:55,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42cb7ae9-0af5-4ae5-8c01-a3ab87122d1e/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