./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.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_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya --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 a6fb157ae499b257dadbdfdc38e5d4454494023bad31f4939a5eb0b429ddb260 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:19:47,043 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:19:47,111 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 00:19:47,116 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:19:47,116 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:19:47,142 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:19:47,142 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:19:47,143 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:19:47,143 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:19:47,144 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:19:47,145 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:19:47,145 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:19:47,146 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:19:47,146 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:19:47,147 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:19:47,147 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:19:47,148 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:19:47,148 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:19:47,149 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:19:47,149 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:19:47,150 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:19:47,150 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:19:47,151 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:19:47,151 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:19:47,152 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:19:47,152 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:19:47,153 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:19:47,153 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:19:47,154 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:19:47,154 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:19:47,154 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:19:47,155 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:19:47,155 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:19:47,155 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:19:47,155 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:19:47,156 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:19:47,156 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:19:47,156 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:19:47,156 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:19:47,156 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:19:47,157 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:19:47,157 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:19:47,157 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_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6fb157ae499b257dadbdfdc38e5d4454494023bad31f4939a5eb0b429ddb260 [2023-11-29 00:19:47,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:19:47,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:19:47,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:19:47,450 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:19:47,450 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:19:47,452 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2023-11-29 00:19:50,381 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:19:50,715 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:19:50,715 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2023-11-29 00:19:50,739 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/data/80938315d/69e7825a7bbe4263b71e5926b293c8c1/FLAG5251fc044 [2023-11-29 00:19:50,752 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/data/80938315d/69e7825a7bbe4263b71e5926b293c8c1 [2023-11-29 00:19:50,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:19:50,757 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:19:50,758 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:19:50,758 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:19:50,762 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:19:50,763 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:19:50" (1/1) ... [2023-11-29 00:19:50,764 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@736d2408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:50, skipping insertion in model container [2023-11-29 00:19:50,765 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:19:50" (1/1) ... [2023-11-29 00:19:50,847 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:19:51,019 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_116fc675-0944-4018-8c9a-1f98de66fab8/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c[1871,1884] [2023-11-29 00:19:51,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:19:51,602 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:19:51,610 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/ctm.bug3.i","-S") [42] [2023-11-29 00:19:51,615 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_116fc675-0944-4018-8c9a-1f98de66fab8/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c[1871,1884] [2023-11-29 00:19:51,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:19:51,844 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:19:51,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:51 WrapperNode [2023-11-29 00:19:51,844 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:19:51,845 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:19:51,845 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:19:51,845 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:19:51,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:51" (1/1) ... [2023-11-29 00:19:51,937 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:51" (1/1) ... [2023-11-29 00:19:52,108 INFO L138 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8541 [2023-11-29 00:19:52,108 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:19:52,109 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:19:52,109 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:19:52,109 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:19:52,119 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:51" (1/1) ... [2023-11-29 00:19:52,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:51" (1/1) ... [2023-11-29 00:19:52,152 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:51" (1/1) ... [2023-11-29 00:19:52,236 INFO L175 MemorySlicer]: Split 2420 memory accesses to 49 slices as follows [2, 80, 86, 37, 37, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46]. 4 percent of accesses are in the largest equivalence class. The 338 initializations are split as follows [2, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7]. The 446 writes are split as follows [0, 7, 7, 7, 7, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6]. [2023-11-29 00:19:52,236 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:51" (1/1) ... [2023-11-29 00:19:52,236 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:51" (1/1) ... [2023-11-29 00:19:52,394 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:51" (1/1) ... [2023-11-29 00:19:52,421 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:51" (1/1) ... [2023-11-29 00:19:52,438 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:51" (1/1) ... [2023-11-29 00:19:52,457 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:51" (1/1) ... [2023-11-29 00:19:52,486 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:19:52,487 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:19:52,487 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:19:52,487 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:19:52,488 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:51" (1/1) ... [2023-11-29 00:19:52,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:19:52,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:19:52,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:19:52,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:19:52,552 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2023-11-29 00:19:52,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2023-11-29 00:19:52,553 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2023-11-29 00:19:52,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2023-11-29 00:19:52,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 00:19:52,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 00:19:52,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 00:19:52,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 00:19:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 00:19:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 00:19:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-29 00:19:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-29 00:19:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-29 00:19:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-29 00:19:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-29 00:19:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-29 00:19:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-29 00:19:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-29 00:19:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-29 00:19:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-29 00:19:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-29 00:19:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-11-29 00:19:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2023-11-29 00:19:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2023-11-29 00:19:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2023-11-29 00:19:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2023-11-29 00:19:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2023-11-29 00:19:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2023-11-29 00:19:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2023-11-29 00:19:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2023-11-29 00:19:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2023-11-29 00:19:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#27 [2023-11-29 00:19:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#28 [2023-11-29 00:19:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#29 [2023-11-29 00:19:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#30 [2023-11-29 00:19:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#31 [2023-11-29 00:19:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#32 [2023-11-29 00:19:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#33 [2023-11-29 00:19:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#34 [2023-11-29 00:19:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#35 [2023-11-29 00:19:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#36 [2023-11-29 00:19:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#37 [2023-11-29 00:19:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#38 [2023-11-29 00:19:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#39 [2023-11-29 00:19:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#40 [2023-11-29 00:19:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#41 [2023-11-29 00:19:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#42 [2023-11-29 00:19:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#43 [2023-11-29 00:19:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#44 [2023-11-29 00:19:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#45 [2023-11-29 00:19:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#46 [2023-11-29 00:19:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#47 [2023-11-29 00:19:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#48 [2023-11-29 00:19:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2023-11-29 00:19:52,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2023-11-29 00:19:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-11-29 00:19:52,560 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-11-29 00:19:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2023-11-29 00:19:52,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2023-11-29 00:19:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2023-11-29 00:19:52,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2023-11-29 00:19:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-11-29 00:19:52,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-11-29 00:19:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2023-11-29 00:19:52,561 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2023-11-29 00:19:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2023-11-29 00:19:52,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2023-11-29 00:19:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2023-11-29 00:19:52,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2023-11-29 00:19:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 00:19:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 00:19:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 00:19:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 00:19:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 00:19:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 00:19:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-29 00:19:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-29 00:19:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-29 00:19:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-29 00:19:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-29 00:19:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-29 00:19:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-29 00:19:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-29 00:19:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-29 00:19:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-29 00:19:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-29 00:19:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-11-29 00:19:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2023-11-29 00:19:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2023-11-29 00:19:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2023-11-29 00:19:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2023-11-29 00:19:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2023-11-29 00:19:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2023-11-29 00:19:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2023-11-29 00:19:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2023-11-29 00:19:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2023-11-29 00:19:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#27 [2023-11-29 00:19:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#28 [2023-11-29 00:19:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#29 [2023-11-29 00:19:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#30 [2023-11-29 00:19:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#31 [2023-11-29 00:19:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#32 [2023-11-29 00:19:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#33 [2023-11-29 00:19:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#34 [2023-11-29 00:19:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#35 [2023-11-29 00:19:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#36 [2023-11-29 00:19:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#37 [2023-11-29 00:19:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#38 [2023-11-29 00:19:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#39 [2023-11-29 00:19:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#40 [2023-11-29 00:19:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#41 [2023-11-29 00:19:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#42 [2023-11-29 00:19:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#43 [2023-11-29 00:19:52,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#44 [2023-11-29 00:19:52,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#45 [2023-11-29 00:19:52,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#46 [2023-11-29 00:19:52,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#47 [2023-11-29 00:19:52,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#48 [2023-11-29 00:19:52,567 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-11-29 00:19:52,567 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-11-29 00:19:52,567 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2023-11-29 00:19:52,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2023-11-29 00:19:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2023-11-29 00:19:52,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2023-11-29 00:19:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2023-11-29 00:19:52,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2023-11-29 00:19:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2023-11-29 00:19:52,568 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2023-11-29 00:19:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2023-11-29 00:19:52,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2023-11-29 00:19:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-11-29 00:19:52,569 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-11-29 00:19:52,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:19:52,569 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-11-29 00:19:52,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-11-29 00:19:52,569 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2023-11-29 00:19:52,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2023-11-29 00:19:52,569 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2023-11-29 00:19:52,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2023-11-29 00:19:52,570 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2023-11-29 00:19:52,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2023-11-29 00:19:52,570 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-11-29 00:19:52,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-11-29 00:19:52,570 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2023-11-29 00:19:52,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2023-11-29 00:19:52,570 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-11-29 00:19:52,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-11-29 00:19:52,571 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2023-11-29 00:19:52,571 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2023-11-29 00:19:52,571 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2023-11-29 00:19:52,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2023-11-29 00:19:52,571 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2023-11-29 00:19:52,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2023-11-29 00:19:52,571 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2023-11-29 00:19:52,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2023-11-29 00:19:52,571 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2023-11-29 00:19:52,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2023-11-29 00:19:52,572 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2023-11-29 00:19:52,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2023-11-29 00:19:52,572 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-29 00:19:52,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-29 00:19:52,572 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2023-11-29 00:19:52,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2023-11-29 00:19:52,572 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2023-11-29 00:19:52,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2023-11-29 00:19:52,573 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2023-11-29 00:19:52,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2023-11-29 00:19:52,573 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2023-11-29 00:19:52,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2023-11-29 00:19:52,573 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2023-11-29 00:19:52,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2023-11-29 00:19:52,573 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2023-11-29 00:19:52,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2023-11-29 00:19:52,573 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2023-11-29 00:19:52,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2023-11-29 00:19:52,574 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2023-11-29 00:19:52,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2023-11-29 00:19:52,574 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2023-11-29 00:19:52,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2023-11-29 00:19:52,574 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2023-11-29 00:19:52,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2023-11-29 00:19:52,574 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2023-11-29 00:19:52,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2023-11-29 00:19:52,574 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2023-11-29 00:19:52,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2023-11-29 00:19:52,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 00:19:52,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 00:19:52,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 00:19:52,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 00:19:52,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 00:19:52,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 00:19:52,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-29 00:19:52,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-29 00:19:52,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-29 00:19:52,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-29 00:19:52,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-29 00:19:52,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-29 00:19:52,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-29 00:19:52,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-29 00:19:52,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-29 00:19:52,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-29 00:19:52,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-29 00:19:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-11-29 00:19:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-11-29 00:19:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-11-29 00:19:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2023-11-29 00:19:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2023-11-29 00:19:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2023-11-29 00:19:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2023-11-29 00:19:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2023-11-29 00:19:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2023-11-29 00:19:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2023-11-29 00:19:52,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#27 [2023-11-29 00:19:52,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#28 [2023-11-29 00:19:52,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#29 [2023-11-29 00:19:52,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#30 [2023-11-29 00:19:52,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#31 [2023-11-29 00:19:52,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#32 [2023-11-29 00:19:52,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#33 [2023-11-29 00:19:52,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#34 [2023-11-29 00:19:52,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#35 [2023-11-29 00:19:52,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#36 [2023-11-29 00:19:52,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#37 [2023-11-29 00:19:52,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#38 [2023-11-29 00:19:52,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#39 [2023-11-29 00:19:52,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#40 [2023-11-29 00:19:52,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#41 [2023-11-29 00:19:52,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#42 [2023-11-29 00:19:52,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#43 [2023-11-29 00:19:52,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#44 [2023-11-29 00:19:52,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#45 [2023-11-29 00:19:52,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#46 [2023-11-29 00:19:52,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#47 [2023-11-29 00:19:52,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#48 [2023-11-29 00:19:52,580 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2023-11-29 00:19:52,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2023-11-29 00:19:52,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:19:52,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:19:53,185 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:19:53,190 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:20:02,736 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:20:03,107 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:20:03,108 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-29 00:20:03,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:20:03 BoogieIcfgContainer [2023-11-29 00:20:03,109 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:20:03,112 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:20:03,112 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:20:03,116 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:20:03,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:19:50" (1/3) ... [2023-11-29 00:20:03,117 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32d551c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:20:03, skipping insertion in model container [2023-11-29 00:20:03,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:51" (2/3) ... [2023-11-29 00:20:03,117 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32d551c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:20:03, skipping insertion in model container [2023-11-29 00:20:03,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:20:03" (3/3) ... [2023-11-29 00:20:03,119 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-2.c [2023-11-29 00:20:03,138 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:20:03,138 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 00:20:03,261 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:20:03,268 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;@4b22858c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:20:03,268 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 00:20:03,281 INFO L276 IsEmpty]: Start isEmpty. Operand has 2403 states, 2051 states have (on average 1.4948805460750854) internal successors, (3066), 2075 states have internal predecessors, (3066), 306 states have call successors, (306), 44 states have call predecessors, (306), 44 states have return successors, (306), 296 states have call predecessors, (306), 306 states have call successors, (306) [2023-11-29 00:20:03,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-29 00:20:03,302 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:20:03,303 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:20:03,304 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:20:03,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:20:03,309 INFO L85 PathProgramCache]: Analyzing trace with hash -949429943, now seen corresponding path program 1 times [2023-11-29 00:20:03,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:20:03,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943417476] [2023-11-29 00:20:03,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:20:03,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:20:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:20:04,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 00:20:04,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:20:04,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:20:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:20:04,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:20:04,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:20:04,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943417476] [2023-11-29 00:20:04,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943417476] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:20:04,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:20:04,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:20:04,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476638991] [2023-11-29 00:20:04,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:20:04,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:20:04,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:20:04,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:20:04,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:20:04,675 INFO L87 Difference]: Start difference. First operand has 2403 states, 2051 states have (on average 1.4948805460750854) internal successors, (3066), 2075 states have internal predecessors, (3066), 306 states have call successors, (306), 44 states have call predecessors, (306), 44 states have return successors, (306), 296 states have call predecessors, (306), 306 states have call successors, (306) Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 2 states have internal predecessors, (137), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:20:09,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:20:13,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:20:17,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:20:24,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:20:24,843 INFO L93 Difference]: Finished difference Result 5504 states and 9198 transitions. [2023-11-29 00:20:24,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:20:24,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 2 states have internal predecessors, (137), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 143 [2023-11-29 00:20:24,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:20:24,889 INFO L225 Difference]: With dead ends: 5504 [2023-11-29 00:20:24,890 INFO L226 Difference]: Without dead ends: 3093 [2023-11-29 00:20:24,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:20:24,989 INFO L413 NwaCegarLoop]: 2292 mSDtfsCounter, 1780 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 2259 mSolverCounterSat, 1206 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1831 SdHoareTripleChecker+Valid, 4073 SdHoareTripleChecker+Invalid, 3468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1206 IncrementalHoareTripleChecker+Valid, 2259 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:20:24,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1831 Valid, 4073 Invalid, 3468 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1206 Valid, 2259 Invalid, 3 Unknown, 0 Unchecked, 19.6s Time] [2023-11-29 00:20:25,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3093 states. [2023-11-29 00:20:25,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3093 to 2393. [2023-11-29 00:20:25,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2393 states, 2042 states have (on average 1.1581782566111656) internal successors, (2365), 2066 states have internal predecessors, (2365), 306 states have call successors, (306), 44 states have call predecessors, (306), 44 states have return successors, (305), 295 states have call predecessors, (305), 305 states have call successors, (305) [2023-11-29 00:20:25,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 2976 transitions. [2023-11-29 00:20:25,305 INFO L78 Accepts]: Start accepts. Automaton has 2393 states and 2976 transitions. Word has length 143 [2023-11-29 00:20:25,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:20:25,305 INFO L495 AbstractCegarLoop]: Abstraction has 2393 states and 2976 transitions. [2023-11-29 00:20:25,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 2 states have internal predecessors, (137), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:20:25,306 INFO L276 IsEmpty]: Start isEmpty. Operand 2393 states and 2976 transitions. [2023-11-29 00:20:25,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-29 00:20:25,317 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:20:25,318 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:20:25,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 00:20:25,318 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:20:25,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:20:25,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1284484218, now seen corresponding path program 1 times [2023-11-29 00:20:25,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:20:25,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591175782] [2023-11-29 00:20:25,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:20:25,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:20:26,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:20:26,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 00:20:26,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:20:26,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:20:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:20:26,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 00:20:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:20:26,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 00:20:26,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:20:26,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 00:20:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:20:26,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 00:20:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:20:26,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 00:20:26,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:20:26,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 00:20:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:20:26,971 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:20:26,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:20:26,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591175782] [2023-11-29 00:20:26,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591175782] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:20:26,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:20:26,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 00:20:26,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478675213] [2023-11-29 00:20:26,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:20:26,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:20:26,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:20:26,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:20:26,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:20:26,976 INFO L87 Difference]: Start difference. First operand 2393 states and 2976 transitions. Second operand has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 6 states have internal predecessors, (179), 4 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 00:20:32,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:20:36,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:20:40,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:20:45,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:20:49,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:20:53,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:21:14,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:21:18,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:21:22,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:21:26,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:21:30,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:21:34,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:21:34,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:21:34,738 INFO L93 Difference]: Finished difference Result 6292 states and 8534 transitions. [2023-11-29 00:21:34,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 00:21:34,738 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 6 states have internal predecessors, (179), 4 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 197 [2023-11-29 00:21:34,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:21:34,771 INFO L225 Difference]: With dead ends: 6292 [2023-11-29 00:21:34,771 INFO L226 Difference]: Without dead ends: 3901 [2023-11-29 00:21:34,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:21:34,797 INFO L413 NwaCegarLoop]: 2281 mSDtfsCounter, 9449 mSDsluCounter, 6323 mSDsCounter, 0 mSdLazyCounter, 7713 mSolverCounterSat, 3215 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9595 SdHoareTripleChecker+Valid, 8604 SdHoareTripleChecker+Invalid, 10940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3215 IncrementalHoareTripleChecker+Valid, 7713 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:21:34,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9595 Valid, 8604 Invalid, 10940 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3215 Valid, 7713 Invalid, 12 Unknown, 0 Unchecked, 66.5s Time] [2023-11-29 00:21:34,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3901 states. [2023-11-29 00:21:35,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3901 to 2888. [2023-11-29 00:21:35,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2888 states, 2389 states have (on average 1.193386354123064) internal successors, (2851), 2419 states have internal predecessors, (2851), 421 states have call successors, (421), 77 states have call predecessors, (421), 77 states have return successors, (420), 406 states have call predecessors, (420), 420 states have call successors, (420) [2023-11-29 00:21:35,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2888 states to 2888 states and 3692 transitions. [2023-11-29 00:21:35,115 INFO L78 Accepts]: Start accepts. Automaton has 2888 states and 3692 transitions. Word has length 197 [2023-11-29 00:21:35,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:21:35,116 INFO L495 AbstractCegarLoop]: Abstraction has 2888 states and 3692 transitions. [2023-11-29 00:21:35,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 6 states have internal predecessors, (179), 4 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 00:21:35,117 INFO L276 IsEmpty]: Start isEmpty. Operand 2888 states and 3692 transitions. [2023-11-29 00:21:35,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 00:21:35,123 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:21:35,124 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:21:35,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 00:21:35,124 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:21:35,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:21:35,124 INFO L85 PathProgramCache]: Analyzing trace with hash -426447878, now seen corresponding path program 1 times [2023-11-29 00:21:35,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:21:35,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500950512] [2023-11-29 00:21:35,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:21:35,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:21:35,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:21:36,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 00:21:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:21:36,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:21:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:21:36,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 00:21:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:21:36,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 00:21:36,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:21:36,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 00:21:36,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:21:36,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 00:21:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:21:36,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 00:21:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:21:36,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 00:21:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:21:36,645 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 00:21:36,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:21:36,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500950512] [2023-11-29 00:21:36,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500950512] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:21:36,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:21:36,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 00:21:36,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598798546] [2023-11-29 00:21:36,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:21:36,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:21:36,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:21:36,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:21:36,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:21:36,649 INFO L87 Difference]: Start difference. First operand 2888 states and 3692 transitions. Second operand has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 6 states have internal predecessors, (179), 4 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 00:21:42,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:21:46,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:21:50,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:21:54,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:21:58,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:22:02,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:22:22,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:22:26,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:22:30,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:22:34,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:22:38,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:22:42,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:22:42,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:22:42,639 INFO L93 Difference]: Finished difference Result 7381 states and 10190 transitions. [2023-11-29 00:22:42,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 00:22:42,640 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 6 states have internal predecessors, (179), 4 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 198 [2023-11-29 00:22:42,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:22:42,666 INFO L225 Difference]: With dead ends: 7381 [2023-11-29 00:22:42,666 INFO L226 Difference]: Without dead ends: 4495 [2023-11-29 00:22:42,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:22:42,686 INFO L413 NwaCegarLoop]: 2206 mSDtfsCounter, 7204 mSDsluCounter, 5575 mSDsCounter, 0 mSdLazyCounter, 7222 mSolverCounterSat, 2217 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7360 SdHoareTripleChecker+Valid, 7781 SdHoareTripleChecker+Invalid, 9451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2217 IncrementalHoareTripleChecker+Valid, 7222 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:22:42,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7360 Valid, 7781 Invalid, 9451 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2217 Valid, 7222 Invalid, 12 Unknown, 0 Unchecked, 64.8s Time] [2023-11-29 00:22:42,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4495 states. [2023-11-29 00:22:42,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4495 to 3243. [2023-11-29 00:22:42,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3243 states, 2646 states have (on average 1.2142857142857142) internal successors, (3213), 2685 states have internal predecessors, (3213), 498 states have call successors, (498), 98 states have call predecessors, (498), 98 states have return successors, (497), 479 states have call predecessors, (497), 497 states have call successors, (497) [2023-11-29 00:22:42,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 4208 transitions. [2023-11-29 00:22:42,992 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 4208 transitions. Word has length 198 [2023-11-29 00:22:42,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:22:42,993 INFO L495 AbstractCegarLoop]: Abstraction has 3243 states and 4208 transitions. [2023-11-29 00:22:42,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 6 states have internal predecessors, (179), 4 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 00:22:42,994 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 4208 transitions. [2023-11-29 00:22:42,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-11-29 00:22:42,998 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:22:42,999 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:22:42,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 00:22:42,999 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:22:42,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:42,999 INFO L85 PathProgramCache]: Analyzing trace with hash 324220153, now seen corresponding path program 1 times [2023-11-29 00:22:42,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:43,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926340613] [2023-11-29 00:22:43,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:43,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:45,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 00:22:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:45,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:22:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:45,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 00:22:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:45,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 00:22:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:45,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 00:22:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:45,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 00:22:45,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:45,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 00:22:45,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:45,718 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-29 00:22:45,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:45,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926340613] [2023-11-29 00:22:45,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926340613] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:22:45,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:22:45,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 00:22:45,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921498381] [2023-11-29 00:22:45,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:22:45,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:22:45,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:45,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:22:45,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:22:45,721 INFO L87 Difference]: Start difference. First operand 3243 states and 4208 transitions. Second operand has 12 states, 11 states have (on average 15.636363636363637) internal successors, (172), 9 states have internal predecessors, (172), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 00:22:51,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:22:55,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:22:59,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:23:03,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:23:07,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:23:11,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:23:15,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:23:35,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:35,867 INFO L93 Difference]: Finished difference Result 9438 states and 13322 transitions. [2023-11-29 00:23:35,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 00:23:35,868 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 15.636363636363637) internal successors, (172), 9 states have internal predecessors, (172), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 194 [2023-11-29 00:23:35,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:35,927 INFO L225 Difference]: With dead ends: 9438 [2023-11-29 00:23:35,927 INFO L226 Difference]: Without dead ends: 6197 [2023-11-29 00:23:35,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2023-11-29 00:23:35,938 INFO L413 NwaCegarLoop]: 2414 mSDtfsCounter, 12607 mSDsluCounter, 7845 mSDsCounter, 0 mSdLazyCounter, 8243 mSolverCounterSat, 5876 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12756 SdHoareTripleChecker+Valid, 10259 SdHoareTripleChecker+Invalid, 14126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5876 IncrementalHoareTripleChecker+Valid, 8243 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:35,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12756 Valid, 10259 Invalid, 14126 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5876 Valid, 8243 Invalid, 7 Unknown, 0 Unchecked, 48.1s Time] [2023-11-29 00:23:35,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6197 states. [2023-11-29 00:23:36,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6197 to 4158. [2023-11-29 00:23:36,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4158 states, 3292 states have (on average 1.2524301336573511) internal successors, (4123), 3348 states have internal predecessors, (4123), 718 states have call successors, (718), 146 states have call predecessors, (718), 147 states have return successors, (718), 693 states have call predecessors, (718), 717 states have call successors, (718) [2023-11-29 00:23:36,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4158 states to 4158 states and 5559 transitions. [2023-11-29 00:23:36,442 INFO L78 Accepts]: Start accepts. Automaton has 4158 states and 5559 transitions. Word has length 194 [2023-11-29 00:23:36,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:36,443 INFO L495 AbstractCegarLoop]: Abstraction has 4158 states and 5559 transitions. [2023-11-29 00:23:36,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 15.636363636363637) internal successors, (172), 9 states have internal predecessors, (172), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 00:23:36,443 INFO L276 IsEmpty]: Start isEmpty. Operand 4158 states and 5559 transitions. [2023-11-29 00:23:36,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-29 00:23:36,448 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:36,449 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:36,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 00:23:36,449 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:23:36,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:36,450 INFO L85 PathProgramCache]: Analyzing trace with hash -634013934, now seen corresponding path program 1 times [2023-11-29 00:23:36,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:36,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905722886] [2023-11-29 00:23:36,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:36,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:37,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:37,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 00:23:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:37,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:23:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:37,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 00:23:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:37,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:23:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:37,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-29 00:23:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:37,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 00:23:37,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:37,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:23:37,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:37,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-29 00:23:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:37,892 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:23:37,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:37,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905722886] [2023-11-29 00:23:37,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905722886] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:23:37,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094088291] [2023-11-29 00:23:37,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:37,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:37,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:37,896 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:37,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 00:23:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:39,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 2822 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:23:39,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:39,490 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 00:23:39,490 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:23:39,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094088291] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:23:39,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:23:39,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2023-11-29 00:23:39,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337299611] [2023-11-29 00:23:39,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:23:39,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:23:39,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:39,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:23:39,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:23:39,493 INFO L87 Difference]: Start difference. First operand 4158 states and 5559 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 00:23:44,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:23:48,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:23:52,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:23:56,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:24:03,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:24:07,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:24:11,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:24:15,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:24:15,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:24:15,627 INFO L93 Difference]: Finished difference Result 8547 states and 11404 transitions. [2023-11-29 00:24:15,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:24:15,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 197 [2023-11-29 00:24:15,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:24:15,670 INFO L225 Difference]: With dead ends: 8547 [2023-11-29 00:24:15,670 INFO L226 Difference]: Without dead ends: 4280 [2023-11-29 00:24:15,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 208 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:24:15,690 INFO L413 NwaCegarLoop]: 3429 mSDtfsCounter, 1424 mSDsluCounter, 8000 mSDsCounter, 0 mSdLazyCounter, 1867 mSolverCounterSat, 4 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1425 SdHoareTripleChecker+Valid, 11429 SdHoareTripleChecker+Invalid, 1879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1867 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:24:15,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1425 Valid, 11429 Invalid, 1879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1867 Invalid, 8 Unknown, 0 Unchecked, 35.5s Time] [2023-11-29 00:24:15,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4280 states. [2023-11-29 00:24:16,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4280 to 4145. [2023-11-29 00:24:16,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4145 states, 3284 states have (on average 1.2512180267965896) internal successors, (4109), 3340 states have internal predecessors, (4109), 713 states have call successors, (713), 146 states have call predecessors, (713), 147 states have return successors, (713), 688 states have call predecessors, (713), 712 states have call successors, (713) [2023-11-29 00:24:16,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4145 states to 4145 states and 5535 transitions. [2023-11-29 00:24:16,226 INFO L78 Accepts]: Start accepts. Automaton has 4145 states and 5535 transitions. Word has length 197 [2023-11-29 00:24:16,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:24:16,226 INFO L495 AbstractCegarLoop]: Abstraction has 4145 states and 5535 transitions. [2023-11-29 00:24:16,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 00:24:16,227 INFO L276 IsEmpty]: Start isEmpty. Operand 4145 states and 5535 transitions. [2023-11-29 00:24:16,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 00:24:16,232 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:24:16,232 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:24:16,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 00:24:16,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:16,433 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:24:16,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:24:16,433 INFO L85 PathProgramCache]: Analyzing trace with hash -657461809, now seen corresponding path program 1 times [2023-11-29 00:24:16,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:24:16,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604688184] [2023-11-29 00:24:16,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:16,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:24:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:17,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 00:24:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:17,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:24:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:17,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 00:24:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:17,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 00:24:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:17,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 00:24:17,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:17,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 00:24:17,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:17,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 00:24:17,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:17,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 00:24:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:17,605 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 00:24:17,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:24:17,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604688184] [2023-11-29 00:24:17,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604688184] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:24:17,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62003117] [2023-11-29 00:24:17,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:17,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:17,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:24:17,607 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:24:17,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 00:24:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:18,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 2824 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:24:18,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:24:19,076 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:24:19,077 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:24:19,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62003117] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:24:19,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:24:19,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2023-11-29 00:24:19,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082070395] [2023-11-29 00:24:19,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:24:19,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:24:19,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:24:19,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:24:19,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:24:19,080 INFO L87 Difference]: Start difference. First operand 4145 states and 5535 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 00:24:24,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:24:28,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:24:32,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:24:36,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:24:42,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:24:46,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:24:50,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:24:54,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:24:54,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:24:54,665 INFO L93 Difference]: Finished difference Result 8479 states and 11300 transitions. [2023-11-29 00:24:54,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:24:54,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 198 [2023-11-29 00:24:54,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:24:54,689 INFO L225 Difference]: With dead ends: 8479 [2023-11-29 00:24:54,689 INFO L226 Difference]: Without dead ends: 4272 [2023-11-29 00:24:54,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 211 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:24:54,702 INFO L413 NwaCegarLoop]: 3424 mSDtfsCounter, 1155 mSDsluCounter, 6149 mSDsCounter, 0 mSdLazyCounter, 1251 mSolverCounterSat, 4 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 9573 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1251 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:24:54,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1156 Valid, 9573 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1251 Invalid, 8 Unknown, 0 Unchecked, 35.1s Time] [2023-11-29 00:24:54,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4272 states. [2023-11-29 00:24:55,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4272 to 4135. [2023-11-29 00:24:55,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4135 states, 3278 states have (on average 1.2501525320317266) internal successors, (4098), 3334 states have internal predecessors, (4098), 709 states have call successors, (709), 146 states have call predecessors, (709), 147 states have return successors, (709), 684 states have call predecessors, (709), 708 states have call successors, (709) [2023-11-29 00:24:55,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4135 states to 4135 states and 5516 transitions. [2023-11-29 00:24:55,092 INFO L78 Accepts]: Start accepts. Automaton has 4135 states and 5516 transitions. Word has length 198 [2023-11-29 00:24:55,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:24:55,092 INFO L495 AbstractCegarLoop]: Abstraction has 4135 states and 5516 transitions. [2023-11-29 00:24:55,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 00:24:55,092 INFO L276 IsEmpty]: Start isEmpty. Operand 4135 states and 5516 transitions. [2023-11-29 00:24:55,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 00:24:55,096 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:24:55,096 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:24:55,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 00:24:55,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:55,297 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:24:55,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:24:55,298 INFO L85 PathProgramCache]: Analyzing trace with hash -802308759, now seen corresponding path program 1 times [2023-11-29 00:24:55,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:24:55,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753194562] [2023-11-29 00:24:55,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:55,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:24:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:56,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 00:24:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:56,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:24:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:56,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:24:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:56,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 00:24:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:56,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 00:24:56,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:56,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 00:24:56,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:56,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 00:24:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:56,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 00:24:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:56,590 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:24:56,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:24:56,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753194562] [2023-11-29 00:24:56,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753194562] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:24:56,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694964641] [2023-11-29 00:24:56,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:56,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:56,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:24:56,592 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:24:56,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 00:24:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:57,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 2823 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:24:57,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:24:58,121 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 00:24:58,121 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:24:58,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694964641] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:24:58,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:24:58,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2023-11-29 00:24:58,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589852822] [2023-11-29 00:24:58,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:24:58,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:24:58,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:24:58,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:24:58,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:24:58,124 INFO L87 Difference]: Start difference. First operand 4135 states and 5516 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 00:25:03,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:25:07,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:25:11,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:25:14,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:25:14,998 INFO L93 Difference]: Finished difference Result 9158 states and 12215 transitions. [2023-11-29 00:25:14,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:25:14,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 198 [2023-11-29 00:25:14,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:25:15,028 INFO L225 Difference]: With dead ends: 9158 [2023-11-29 00:25:15,028 INFO L226 Difference]: Without dead ends: 5025 [2023-11-29 00:25:15,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 211 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:25:15,057 INFO L413 NwaCegarLoop]: 3423 mSDtfsCounter, 1718 mSDsluCounter, 6407 mSDsCounter, 0 mSdLazyCounter, 1681 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 9830 SdHoareTripleChecker+Invalid, 1693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1681 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:25:15,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1720 Valid, 9830 Invalid, 1693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1681 Invalid, 3 Unknown, 0 Unchecked, 16.2s Time] [2023-11-29 00:25:15,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5025 states. [2023-11-29 00:25:15,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5025 to 4696. [2023-11-29 00:25:15,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4696 states, 3667 states have (on average 1.2664303245159532) internal successors, (4644), 3734 states have internal predecessors, (4644), 852 states have call successors, (852), 174 states have call predecessors, (852), 176 states have return successors, (853), 823 states have call predecessors, (853), 851 states have call successors, (853) [2023-11-29 00:25:15,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4696 states to 4696 states and 6349 transitions. [2023-11-29 00:25:15,634 INFO L78 Accepts]: Start accepts. Automaton has 4696 states and 6349 transitions. Word has length 198 [2023-11-29 00:25:15,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:25:15,635 INFO L495 AbstractCegarLoop]: Abstraction has 4696 states and 6349 transitions. [2023-11-29 00:25:15,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 00:25:15,635 INFO L276 IsEmpty]: Start isEmpty. Operand 4696 states and 6349 transitions. [2023-11-29 00:25:15,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-11-29 00:25:15,640 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:25:15,640 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:25:15,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 00:25:15,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_116fc675-0944-4018-8c9a-1f98de66fab8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:25:15,841 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:25:15,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:25:15,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1842805121, now seen corresponding path program 1 times [2023-11-29 00:25:15,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:25:15,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475907770] [2023-11-29 00:25:15,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:25:15,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:25:16,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:17,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 00:25:17,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:17,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:25:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:17,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:25:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:17,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 00:25:17,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:17,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:25:17,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:17,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 00:25:17,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:17,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-29 00:25:17,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:17,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-29 00:25:17,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:17,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 00:25:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:17,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 00:25:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:17,297 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:25:17,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:25:17,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475907770] [2023-11-29 00:25:17,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475907770] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:25:17,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:25:17,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 00:25:17,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597292123] [2023-11-29 00:25:17,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:25:17,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:25:17,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:25:17,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:25:17,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:25:17,300 INFO L87 Difference]: Start difference. First operand 4696 states and 6349 transitions. Second operand has 9 states, 9 states have (on average 20.0) internal successors, (180), 6 states have internal predecessors, (180), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 00:25:22,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:25:26,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:25:30,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:25:34,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:25:38,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:25:42,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:25:57,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:25:57,346 INFO L93 Difference]: Finished difference Result 10527 states and 15063 transitions. [2023-11-29 00:25:57,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 00:25:57,347 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.0) internal successors, (180), 6 states have internal predecessors, (180), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 207 [2023-11-29 00:25:57,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:25:57,366 INFO L225 Difference]: With dead ends: 10527 [2023-11-29 00:25:57,366 INFO L226 Difference]: Without dead ends: 5833 [2023-11-29 00:25:57,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:25:57,379 INFO L413 NwaCegarLoop]: 2195 mSDtfsCounter, 9935 mSDsluCounter, 5237 mSDsCounter, 0 mSdLazyCounter, 6303 mSolverCounterSat, 3883 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10099 SdHoareTripleChecker+Valid, 7432 SdHoareTripleChecker+Invalid, 10192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3883 IncrementalHoareTripleChecker+Valid, 6303 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:25:57,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10099 Valid, 7432 Invalid, 10192 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3883 Valid, 6303 Invalid, 6 Unknown, 0 Unchecked, 38.6s Time] [2023-11-29 00:25:57,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5833 states. [2023-11-29 00:25:57,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5833 to 4133. [2023-11-29 00:25:57,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4133 states, 3277 states have (on average 1.2493133963991456) internal successors, (4094), 3333 states have internal predecessors, (4094), 708 states have call successors, (708), 146 states have call predecessors, (708), 147 states have return successors, (708), 683 states have call predecessors, (708), 707 states have call successors, (708) [2023-11-29 00:25:57,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4133 states to 4133 states and 5510 transitions. [2023-11-29 00:25:57,762 INFO L78 Accepts]: Start accepts. Automaton has 4133 states and 5510 transitions. Word has length 207 [2023-11-29 00:25:57,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:25:57,763 INFO L495 AbstractCegarLoop]: Abstraction has 4133 states and 5510 transitions. [2023-11-29 00:25:57,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.0) internal successors, (180), 6 states have internal predecessors, (180), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 00:25:57,763 INFO L276 IsEmpty]: Start isEmpty. Operand 4133 states and 5510 transitions. [2023-11-29 00:25:57,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-11-29 00:25:57,766 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:25:57,767 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:25:57,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 00:25:57,767 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:25:57,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:25:57,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1178228792, now seen corresponding path program 1 times [2023-11-29 00:25:57,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:25:57,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319631674] [2023-11-29 00:25:57,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:25:57,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:25:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:58,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 00:25:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:58,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:25:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:58,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:25:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:58,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 00:25:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:58,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:25:58,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:58,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 00:25:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:58,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 00:25:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:58,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 00:25:58,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:58,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-29 00:25:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:58,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 00:25:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:58,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 00:25:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:58,829 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:25:58,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:25:58,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319631674] [2023-11-29 00:25:58,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319631674] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:25:58,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:25:58,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 00:25:58,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485619365] [2023-11-29 00:25:58,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:25:58,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:25:58,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:25:58,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:25:58,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:25:58,832 INFO L87 Difference]: Start difference. First operand 4133 states and 5510 transitions. Second operand has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 6 states have internal predecessors, (181), 4 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 00:26:04,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:26:08,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:26:12,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:26:16,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:26:20,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:26:25,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:26:45,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:26:49,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:26:53,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:26:57,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:27:01,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:27:05,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:27:05,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:27:05,912 INFO L93 Difference]: Finished difference Result 10094 states and 14364 transitions. [2023-11-29 00:27:05,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 00:27:05,912 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 6 states have internal predecessors, (181), 4 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 210 [2023-11-29 00:27:05,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:27:05,936 INFO L225 Difference]: With dead ends: 10094 [2023-11-29 00:27:05,937 INFO L226 Difference]: Without dead ends: 5963 [2023-11-29 00:27:05,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:27:05,957 INFO L413 NwaCegarLoop]: 2317 mSDtfsCounter, 5961 mSDsluCounter, 7062 mSDsCounter, 0 mSdLazyCounter, 8815 mSolverCounterSat, 1720 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6111 SdHoareTripleChecker+Valid, 9379 SdHoareTripleChecker+Invalid, 10547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1720 IncrementalHoareTripleChecker+Valid, 8815 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:27:05,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6111 Valid, 9379 Invalid, 10547 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1720 Valid, 8815 Invalid, 12 Unknown, 0 Unchecked, 65.8s Time] [2023-11-29 00:27:05,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5963 states. [2023-11-29 00:27:06,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5963 to 4131. [2023-11-29 00:27:06,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4131 states, 3276 states have (on average 1.249084249084249) internal successors, (4092), 3332 states have internal predecessors, (4092), 707 states have call successors, (707), 146 states have call predecessors, (707), 147 states have return successors, (707), 682 states have call predecessors, (707), 706 states have call successors, (707) [2023-11-29 00:27:06,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4131 states to 4131 states and 5506 transitions. [2023-11-29 00:27:06,455 INFO L78 Accepts]: Start accepts. Automaton has 4131 states and 5506 transitions. Word has length 210 [2023-11-29 00:27:06,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:27:06,455 INFO L495 AbstractCegarLoop]: Abstraction has 4131 states and 5506 transitions. [2023-11-29 00:27:06,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 6 states have internal predecessors, (181), 4 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 00:27:06,456 INFO L276 IsEmpty]: Start isEmpty. Operand 4131 states and 5506 transitions. [2023-11-29 00:27:06,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-11-29 00:27:06,458 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:27:06,458 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:27:06,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 00:27:06,458 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:27:06,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:27:06,459 INFO L85 PathProgramCache]: Analyzing trace with hash 615564307, now seen corresponding path program 1 times [2023-11-29 00:27:06,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:27:06,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567669123] [2023-11-29 00:27:06,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:27:06,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:27:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:07,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 00:27:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:07,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:27:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:07,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:27:07,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:07,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 00:27:07,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:07,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:27:07,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:07,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 00:27:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:07,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:27:07,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:07,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-29 00:27:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:07,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 00:27:07,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:07,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-29 00:27:07,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:07,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 00:27:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:07,572 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 00:27:07,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:27:07,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567669123] [2023-11-29 00:27:07,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567669123] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:27:07,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:27:07,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 00:27:07,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871652972] [2023-11-29 00:27:07,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:27:07,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:27:07,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:27:07,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:27:07,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:27:07,575 INFO L87 Difference]: Start difference. First operand 4131 states and 5506 transitions. Second operand has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 6 states have internal predecessors, (181), 3 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 00:27:12,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:27:16,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:27:20,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:27:25,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:27:29,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:27:33,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:27:50,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:27:50,501 INFO L93 Difference]: Finished difference Result 9959 states and 14209 transitions. [2023-11-29 00:27:50,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 00:27:50,501 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 6 states have internal predecessors, (181), 3 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 211 [2023-11-29 00:27:50,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:27:50,520 INFO L225 Difference]: With dead ends: 9959 [2023-11-29 00:27:50,521 INFO L226 Difference]: Without dead ends: 5830 [2023-11-29 00:27:50,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:27:50,533 INFO L413 NwaCegarLoop]: 2116 mSDtfsCounter, 9225 mSDsluCounter, 4872 mSDsCounter, 0 mSdLazyCounter, 6701 mSolverCounterSat, 3239 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9376 SdHoareTripleChecker+Valid, 6988 SdHoareTripleChecker+Invalid, 9946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3239 IncrementalHoareTripleChecker+Valid, 6701 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:27:50,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9376 Valid, 6988 Invalid, 9946 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3239 Valid, 6701 Invalid, 6 Unknown, 0 Unchecked, 41.4s Time] [2023-11-29 00:27:50,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5830 states. [2023-11-29 00:27:50,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5830 to 4131. [2023-11-29 00:27:50,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4131 states, 3276 states have (on average 1.2487789987789988) internal successors, (4091), 3332 states have internal predecessors, (4091), 707 states have call successors, (707), 146 states have call predecessors, (707), 147 states have return successors, (707), 682 states have call predecessors, (707), 706 states have call successors, (707) [2023-11-29 00:27:50,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4131 states to 4131 states and 5505 transitions. [2023-11-29 00:27:50,994 INFO L78 Accepts]: Start accepts. Automaton has 4131 states and 5505 transitions. Word has length 211 [2023-11-29 00:27:50,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:27:50,995 INFO L495 AbstractCegarLoop]: Abstraction has 4131 states and 5505 transitions. [2023-11-29 00:27:50,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 6 states have internal predecessors, (181), 3 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 00:27:50,995 INFO L276 IsEmpty]: Start isEmpty. Operand 4131 states and 5505 transitions. [2023-11-29 00:27:50,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-11-29 00:27:50,998 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:27:50,998 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:27:50,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 00:27:50,998 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:27:50,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:27:50,999 INFO L85 PathProgramCache]: Analyzing trace with hash 116581454, now seen corresponding path program 1 times [2023-11-29 00:27:50,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:27:50,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743672662] [2023-11-29 00:27:50,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:27:50,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:27:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:51,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 00:27:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:52,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:27:52,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:52,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:27:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:52,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 00:27:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:52,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:27:52,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:52,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 00:27:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:52,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:27:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:52,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-29 00:27:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:52,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 00:27:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:52,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-29 00:27:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:52,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 00:27:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:52,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 00:27:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:52,139 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 00:27:52,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:27:52,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743672662] [2023-11-29 00:27:52,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743672662] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:27:52,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:27:52,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 00:27:52,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332593884] [2023-11-29 00:27:52,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:27:52,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:27:52,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:27:52,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:27:52,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:27:52,142 INFO L87 Difference]: Start difference. First operand 4131 states and 5505 transitions. Second operand has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 6 states have internal predecessors, (182), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 00:27:57,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:28:01,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:28:05,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:28:09,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:28:13,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:28:17,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:28:37,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:28:41,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:28:45,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:28:49,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:28:53,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:28:57,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:28:58,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:28:58,125 INFO L93 Difference]: Finished difference Result 10089 states and 14352 transitions. [2023-11-29 00:28:58,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 00:28:58,126 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 6 states have internal predecessors, (182), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 214 [2023-11-29 00:28:58,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:28:58,144 INFO L225 Difference]: With dead ends: 10089 [2023-11-29 00:28:58,144 INFO L226 Difference]: Without dead ends: 5960 [2023-11-29 00:28:58,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:28:58,155 INFO L413 NwaCegarLoop]: 2251 mSDtfsCounter, 9583 mSDsluCounter, 4998 mSDsCounter, 0 mSdLazyCounter, 6629 mSolverCounterSat, 3274 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9731 SdHoareTripleChecker+Valid, 7249 SdHoareTripleChecker+Invalid, 9915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3274 IncrementalHoareTripleChecker+Valid, 6629 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:28:58,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9731 Valid, 7249 Invalid, 9915 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3274 Valid, 6629 Invalid, 12 Unknown, 0 Unchecked, 64.5s Time] [2023-11-29 00:28:58,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5960 states. [2023-11-29 00:28:58,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5960 to 4129. [2023-11-29 00:28:58,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4129 states, 3275 states have (on average 1.2485496183206106) internal successors, (4089), 3331 states have internal predecessors, (4089), 706 states have call successors, (706), 146 states have call predecessors, (706), 147 states have return successors, (706), 681 states have call predecessors, (706), 705 states have call successors, (706) [2023-11-29 00:28:58,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4129 states to 4129 states and 5501 transitions. [2023-11-29 00:28:58,596 INFO L78 Accepts]: Start accepts. Automaton has 4129 states and 5501 transitions. Word has length 214 [2023-11-29 00:28:58,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:28:58,597 INFO L495 AbstractCegarLoop]: Abstraction has 4129 states and 5501 transitions. [2023-11-29 00:28:58,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 6 states have internal predecessors, (182), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 00:28:58,597 INFO L276 IsEmpty]: Start isEmpty. Operand 4129 states and 5501 transitions. [2023-11-29 00:28:58,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-11-29 00:28:58,599 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:28:58,599 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:28:58,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 00:28:58,600 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:28:58,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:28:58,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1101800564, now seen corresponding path program 1 times [2023-11-29 00:28:58,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:28:58,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972199405] [2023-11-29 00:28:58,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:28:58,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:28:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:59,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 00:28:59,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:59,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:28:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:59,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:28:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:59,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 00:28:59,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:59,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:28:59,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:59,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 00:28:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:59,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:28:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:59,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-29 00:28:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:59,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 00:28:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:59,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 00:28:59,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:59,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 00:28:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:59,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 00:28:59,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:59,586 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 00:28:59,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:28:59,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972199405] [2023-11-29 00:28:59,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972199405] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:28:59,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:28:59,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 00:28:59,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166081836] [2023-11-29 00:28:59,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:28:59,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:28:59,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:28:59,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:28:59,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:28:59,589 INFO L87 Difference]: Start difference. First operand 4129 states and 5501 transitions. Second operand has 9 states, 9 states have (on average 20.333333333333332) internal successors, (183), 6 states have internal predecessors, (183), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 00:29:05,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:29:09,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:29:13,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:29:17,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:29:21,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:29:25,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:29:45,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:29:49,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:29:53,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:29:57,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:30:01,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:30:05,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:30:06,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:30:06,203 INFO L93 Difference]: Finished difference Result 10084 states and 14342 transitions. [2023-11-29 00:30:06,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 00:30:06,204 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.333333333333332) internal successors, (183), 6 states have internal predecessors, (183), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 215 [2023-11-29 00:30:06,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:30:06,220 INFO L225 Difference]: With dead ends: 10084 [2023-11-29 00:30:06,220 INFO L226 Difference]: Without dead ends: 5957 [2023-11-29 00:30:06,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:30:06,231 INFO L413 NwaCegarLoop]: 2245 mSDtfsCounter, 6086 mSDsluCounter, 6989 mSDsCounter, 0 mSdLazyCounter, 8241 mSolverCounterSat, 1765 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6242 SdHoareTripleChecker+Valid, 9234 SdHoareTripleChecker+Invalid, 10018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1765 IncrementalHoareTripleChecker+Valid, 8241 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:30:06,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6242 Valid, 9234 Invalid, 10018 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1765 Valid, 8241 Invalid, 12 Unknown, 0 Unchecked, 65.1s Time] [2023-11-29 00:30:06,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5957 states. [2023-11-29 00:30:06,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5957 to 4125. [2023-11-29 00:30:06,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4125 states, 3273 states have (on average 1.2480904369080354) internal successors, (4085), 3329 states have internal predecessors, (4085), 704 states have call successors, (704), 146 states have call predecessors, (704), 147 states have return successors, (704), 679 states have call predecessors, (704), 703 states have call successors, (704) [2023-11-29 00:30:06,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4125 states to 4125 states and 5493 transitions. [2023-11-29 00:30:06,745 INFO L78 Accepts]: Start accepts. Automaton has 4125 states and 5493 transitions. Word has length 215 [2023-11-29 00:30:06,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:30:06,746 INFO L495 AbstractCegarLoop]: Abstraction has 4125 states and 5493 transitions. [2023-11-29 00:30:06,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.333333333333332) internal successors, (183), 6 states have internal predecessors, (183), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 00:30:06,746 INFO L276 IsEmpty]: Start isEmpty. Operand 4125 states and 5493 transitions. [2023-11-29 00:30:06,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-11-29 00:30:06,748 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:30:06,748 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:30:06,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 00:30:06,748 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:30:06,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:30:06,749 INFO L85 PathProgramCache]: Analyzing trace with hash 802633582, now seen corresponding path program 1 times [2023-11-29 00:30:06,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:30:06,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295566869] [2023-11-29 00:30:06,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:30:06,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:30:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:07,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 00:30:07,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:07,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:30:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:07,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:30:07,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:07,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 00:30:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:07,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:30:07,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:07,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 00:30:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:07,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:30:07,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:07,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-29 00:30:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:07,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:30:07,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:07,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 00:30:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:07,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 00:30:07,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:07,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 00:30:07,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:07,704 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 00:30:07,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:30:07,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295566869] [2023-11-29 00:30:07,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295566869] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:30:07,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:30:07,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 00:30:07,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570920098] [2023-11-29 00:30:07,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:30:07,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:30:07,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:30:07,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:30:07,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:30:07,706 INFO L87 Difference]: Start difference. First operand 4125 states and 5493 transitions. Second operand has 8 states, 8 states have (on average 22.75) internal successors, (182), 5 states have internal predecessors, (182), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 00:30:13,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:30:17,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:30:21,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:30:25,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:30:29,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:30:41,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:30:41,593 INFO L93 Difference]: Finished difference Result 9944 states and 14175 transitions. [2023-11-29 00:30:41,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 00:30:41,593 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 5 states have internal predecessors, (182), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 215 [2023-11-29 00:30:41,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:30:41,609 INFO L225 Difference]: With dead ends: 9944 [2023-11-29 00:30:41,609 INFO L226 Difference]: Without dead ends: 5821 [2023-11-29 00:30:41,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:30:41,621 INFO L413 NwaCegarLoop]: 2048 mSDtfsCounter, 2927 mSDsluCounter, 8084 mSDsCounter, 0 mSdLazyCounter, 6836 mSolverCounterSat, 1286 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3006 SdHoareTripleChecker+Valid, 10132 SdHoareTripleChecker+Invalid, 8127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1286 IncrementalHoareTripleChecker+Valid, 6836 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:30:41,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3006 Valid, 10132 Invalid, 8127 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1286 Valid, 6836 Invalid, 5 Unknown, 0 Unchecked, 32.8s Time] [2023-11-29 00:30:41,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5821 states. [2023-11-29 00:30:42,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5821 to 4125. [2023-11-29 00:30:42,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4125 states, 3273 states have (on average 1.247784906813321) internal successors, (4084), 3329 states have internal predecessors, (4084), 704 states have call successors, (704), 146 states have call predecessors, (704), 147 states have return successors, (704), 679 states have call predecessors, (704), 703 states have call successors, (704) [2023-11-29 00:30:42,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4125 states to 4125 states and 5492 transitions. [2023-11-29 00:30:42,084 INFO L78 Accepts]: Start accepts. Automaton has 4125 states and 5492 transitions. Word has length 215 [2023-11-29 00:30:42,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:30:42,084 INFO L495 AbstractCegarLoop]: Abstraction has 4125 states and 5492 transitions. [2023-11-29 00:30:42,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 5 states have internal predecessors, (182), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 00:30:42,084 INFO L276 IsEmpty]: Start isEmpty. Operand 4125 states and 5492 transitions. [2023-11-29 00:30:42,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-11-29 00:30:42,086 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:30:42,086 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:30:42,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 00:30:42,087 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:30:42,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:30:42,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1981903949, now seen corresponding path program 1 times [2023-11-29 00:30:42,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:30:42,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996242908] [2023-11-29 00:30:42,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:30:42,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:30:42,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:42,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 00:30:42,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:42,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:30:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:42,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:30:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:42,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 00:30:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:42,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:30:42,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:42,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 00:30:42,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:42,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:30:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:42,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-29 00:30:42,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:42,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:30:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:42,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 00:30:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:42,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 00:30:42,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:42,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-29 00:30:42,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:42,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 00:30:42,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:42,960 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 00:30:42,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:30:42,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996242908] [2023-11-29 00:30:42,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996242908] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:30:42,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:30:42,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 00:30:42,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234260265] [2023-11-29 00:30:42,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:30:42,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:30:42,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:30:42,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:30:42,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:30:42,962 INFO L87 Difference]: Start difference. First operand 4125 states and 5492 transitions. Second operand has 8 states, 8 states have (on average 22.875) internal successors, (183), 5 states have internal predecessors, (183), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 00:30:49,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:30:53,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:30:57,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:31:01,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:31:05,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:31:22,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:31:26,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:31:30,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:31:34,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:31:38,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:31:38,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:31:38,921 INFO L93 Difference]: Finished difference Result 10073 states and 14314 transitions. [2023-11-29 00:31:38,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 00:31:38,922 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.875) internal successors, (183), 5 states have internal predecessors, (183), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 218 [2023-11-29 00:31:38,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:31:38,938 INFO L225 Difference]: With dead ends: 10073 [2023-11-29 00:31:38,938 INFO L226 Difference]: Without dead ends: 5950 [2023-11-29 00:31:38,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:31:38,949 INFO L413 NwaCegarLoop]: 2274 mSDtfsCounter, 4164 mSDsluCounter, 8045 mSDsCounter, 0 mSdLazyCounter, 6925 mSolverCounterSat, 1347 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4281 SdHoareTripleChecker+Valid, 10319 SdHoareTripleChecker+Invalid, 8282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1347 IncrementalHoareTripleChecker+Valid, 6925 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:31:38,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4281 Valid, 10319 Invalid, 8282 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1347 Valid, 6925 Invalid, 10 Unknown, 0 Unchecked, 54.8s Time] [2023-11-29 00:31:38,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5950 states. [2023-11-29 00:31:39,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5950 to 4123. [2023-11-29 00:31:39,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4123 states, 3272 states have (on average 1.2475550122249388) internal successors, (4082), 3328 states have internal predecessors, (4082), 703 states have call successors, (703), 146 states have call predecessors, (703), 147 states have return successors, (703), 678 states have call predecessors, (703), 702 states have call successors, (703) [2023-11-29 00:31:39,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4123 states to 4123 states and 5488 transitions. [2023-11-29 00:31:39,416 INFO L78 Accepts]: Start accepts. Automaton has 4123 states and 5488 transitions. Word has length 218 [2023-11-29 00:31:39,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:31:39,416 INFO L495 AbstractCegarLoop]: Abstraction has 4123 states and 5488 transitions. [2023-11-29 00:31:39,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.875) internal successors, (183), 5 states have internal predecessors, (183), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 00:31:39,416 INFO L276 IsEmpty]: Start isEmpty. Operand 4123 states and 5488 transitions. [2023-11-29 00:31:39,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-11-29 00:31:39,418 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:31:39,419 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:31:39,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 00:31:39,419 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:31:39,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:31:39,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1432338438, now seen corresponding path program 1 times [2023-11-29 00:31:39,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:31:39,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656464762] [2023-11-29 00:31:39,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:31:39,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:31:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:31:40,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 00:31:40,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:31:40,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:31:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:31:40,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:31:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:31:40,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 00:31:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:31:40,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:31:40,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:31:40,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 00:31:40,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:31:40,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:31:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:31:40,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-29 00:31:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:31:40,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:31:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:31:40,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 00:31:40,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:31:40,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 00:31:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:31:40,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-29 00:31:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:31:40,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 00:31:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:31:40,337 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 00:31:40,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:31:40,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656464762] [2023-11-29 00:31:40,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656464762] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:31:40,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:31:40,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 00:31:40,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124144980] [2023-11-29 00:31:40,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:31:40,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:31:40,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:31:40,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:31:40,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:31:40,340 INFO L87 Difference]: Start difference. First operand 4123 states and 5488 transitions. Second operand has 8 states, 8 states have (on average 23.0) internal successors, (184), 5 states have internal predecessors, (184), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 00:31:45,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:31:49,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:31:53,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:31:57,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:32:01,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:32:17,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:32:21,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:32:25,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:32:29,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:32:33,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:32:33,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:32:33,496 INFO L93 Difference]: Finished difference Result 10069 states and 14301 transitions. [2023-11-29 00:32:33,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 00:32:33,496 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.0) internal successors, (184), 5 states have internal predecessors, (184), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 219 [2023-11-29 00:32:33,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:32:33,512 INFO L225 Difference]: With dead ends: 10069 [2023-11-29 00:32:33,512 INFO L226 Difference]: Without dead ends: 5948 [2023-11-29 00:32:33,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:32:33,524 INFO L413 NwaCegarLoop]: 2146 mSDtfsCounter, 5637 mSDsluCounter, 5411 mSDsCounter, 0 mSdLazyCounter, 5167 mSolverCounterSat, 2096 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5773 SdHoareTripleChecker+Valid, 7557 SdHoareTripleChecker+Invalid, 7273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2096 IncrementalHoareTripleChecker+Valid, 5167 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.9s IncrementalHoareTripleChecker+Time [2023-11-29 00:32:33,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5773 Valid, 7557 Invalid, 7273 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2096 Valid, 5167 Invalid, 10 Unknown, 0 Unchecked, 51.9s Time] [2023-11-29 00:32:33,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5948 states. [2023-11-29 00:32:33,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5948 to 4121. [2023-11-29 00:32:33,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4121 states, 3271 states have (on average 1.247324977071232) internal successors, (4080), 3327 states have internal predecessors, (4080), 702 states have call successors, (702), 146 states have call predecessors, (702), 147 states have return successors, (702), 677 states have call predecessors, (702), 701 states have call successors, (702) [2023-11-29 00:32:33,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4121 states to 4121 states and 5484 transitions. [2023-11-29 00:32:33,953 INFO L78 Accepts]: Start accepts. Automaton has 4121 states and 5484 transitions. Word has length 219 [2023-11-29 00:32:33,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:32:33,954 INFO L495 AbstractCegarLoop]: Abstraction has 4121 states and 5484 transitions. [2023-11-29 00:32:33,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.0) internal successors, (184), 5 states have internal predecessors, (184), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 00:32:33,954 INFO L276 IsEmpty]: Start isEmpty. Operand 4121 states and 5484 transitions. [2023-11-29 00:32:33,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-11-29 00:32:33,956 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:32:33,956 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:32:33,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 00:32:33,956 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:32:33,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:32:33,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1125349908, now seen corresponding path program 1 times [2023-11-29 00:32:33,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:32:33,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983315553] [2023-11-29 00:32:33,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:32:33,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:32:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:32:34,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 00:32:34,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:32:34,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:32:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:32:34,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:32:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:32:34,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 00:32:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:32:34,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:32:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:32:34,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 00:32:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:32:34,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:32:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:32:34,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-29 00:32:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:32:34,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:32:34,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:32:34,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 00:32:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:32:34,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-29 00:32:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:32:34,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-29 00:32:34,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:32:34,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 00:32:34,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:32:34,866 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-29 00:32:34,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:32:34,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983315553] [2023-11-29 00:32:34,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983315553] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:32:34,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:32:34,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 00:32:34,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815431296] [2023-11-29 00:32:34,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:32:34,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:32:34,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:32:34,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:32:34,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:32:34,869 INFO L87 Difference]: Start difference. First operand 4121 states and 5484 transitions. Second operand has 8 states, 8 states have (on average 22.875) internal successors, (183), 5 states have internal predecessors, (183), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 00:32:40,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:32:44,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:32:48,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:32:52,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:32:56,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:33:08,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:08,537 INFO L93 Difference]: Finished difference Result 9932 states and 14144 transitions. [2023-11-29 00:33:08,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 00:33:08,537 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.875) internal successors, (183), 5 states have internal predecessors, (183), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 219 [2023-11-29 00:33:08,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:08,554 INFO L225 Difference]: With dead ends: 9932 [2023-11-29 00:33:08,554 INFO L226 Difference]: Without dead ends: 5813 [2023-11-29 00:33:08,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:33:08,565 INFO L413 NwaCegarLoop]: 2100 mSDtfsCounter, 4728 mSDsluCounter, 6902 mSDsCounter, 0 mSdLazyCounter, 5069 mSolverCounterSat, 2402 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4808 SdHoareTripleChecker+Valid, 9002 SdHoareTripleChecker+Invalid, 7476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2402 IncrementalHoareTripleChecker+Valid, 5069 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:33:08,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4808 Valid, 9002 Invalid, 7476 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2402 Valid, 5069 Invalid, 5 Unknown, 0 Unchecked, 32.4s Time] [2023-11-29 00:33:08,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5813 states. [2023-11-29 00:33:08,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5813 to 4121. [2023-11-29 00:33:08,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4121 states, 3271 states have (on average 1.2470192601650871) internal successors, (4079), 3327 states have internal predecessors, (4079), 702 states have call successors, (702), 146 states have call predecessors, (702), 147 states have return successors, (702), 677 states have call predecessors, (702), 701 states have call successors, (702) [2023-11-29 00:33:08,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4121 states to 4121 states and 5483 transitions. [2023-11-29 00:33:08,985 INFO L78 Accepts]: Start accepts. Automaton has 4121 states and 5483 transitions. Word has length 219 [2023-11-29 00:33:08,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:08,986 INFO L495 AbstractCegarLoop]: Abstraction has 4121 states and 5483 transitions. [2023-11-29 00:33:08,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.875) internal successors, (183), 5 states have internal predecessors, (183), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 00:33:08,986 INFO L276 IsEmpty]: Start isEmpty. Operand 4121 states and 5483 transitions. [2023-11-29 00:33:08,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-11-29 00:33:08,988 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:08,989 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:33:08,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 00:33:08,989 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:33:08,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:08,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1724010657, now seen corresponding path program 1 times [2023-11-29 00:33:08,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:08,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523092624] [2023-11-29 00:33:08,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:08,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:09,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 00:33:09,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:09,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:33:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:09,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:33:09,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:09,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 00:33:09,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:09,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:33:09,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:09,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 00:33:09,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:09,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:33:09,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:09,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-29 00:33:09,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:09,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:33:09,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:09,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 00:33:09,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:09,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-29 00:33:09,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:09,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 00:33:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:09,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-29 00:33:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:09,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 00:33:09,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:09,943 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-29 00:33:09,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:09,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523092624] [2023-11-29 00:33:09,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523092624] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:33:09,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:33:09,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 00:33:09,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875041930] [2023-11-29 00:33:09,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:09,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:33:09,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:09,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:33:09,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:33:09,945 INFO L87 Difference]: Start difference. First operand 4121 states and 5483 transitions. Second operand has 8 states, 8 states have (on average 23.0) internal successors, (184), 5 states have internal predecessors, (184), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 00:33:14,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:33:19,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:33:23,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:33:27,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:33:31,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:33:47,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []