./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d6f518-a0fb-4f54-b6e9-ce8e49818498/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d6f518-a0fb-4f54-b6e9-ce8e49818498/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d6f518-a0fb-4f54-b6e9-ce8e49818498/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d6f518-a0fb-4f54-b6e9-ce8e49818498/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d6f518-a0fb-4f54-b6e9-ce8e49818498/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d6f518-a0fb-4f54-b6e9-ce8e49818498/bin/uautomizer-verify-zZY32mL2XJ --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 f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:36:43,905 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:36:44,008 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d6f518-a0fb-4f54-b6e9-ce8e49818498/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-23 21:36:44,014 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:36:44,015 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:36:44,045 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:36:44,046 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:36:44,047 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:36:44,047 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:36:44,048 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:36:44,049 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:36:44,049 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:36:44,050 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:36:44,051 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:36:44,052 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:36:44,052 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:36:44,054 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:36:44,058 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:36:44,059 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:36:44,059 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:36:44,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:36:44,062 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:36:44,062 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:36:44,063 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:36:44,063 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:36:44,063 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:36:44,064 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:36:44,064 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:36:44,065 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:36:44,065 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:36:44,066 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:36:44,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:36:44,067 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:36:44,067 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:36:44,067 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:36:44,068 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:36:44,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:36:44,069 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:36:44,069 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:36:44,070 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:36:44,070 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:36:44,072 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:36:44,072 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d6f518-a0fb-4f54-b6e9-ce8e49818498/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d6f518-a0fb-4f54-b6e9-ce8e49818498/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d [2023-11-23 21:36:44,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:36:44,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:36:44,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:36:44,448 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:36:44,449 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:36:44,450 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d6f518-a0fb-4f54-b6e9-ce8e49818498/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2023-11-23 21:36:47,717 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:36:48,176 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:36:48,176 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d6f518-a0fb-4f54-b6e9-ce8e49818498/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2023-11-23 21:36:48,205 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d6f518-a0fb-4f54-b6e9-ce8e49818498/bin/uautomizer-verify-zZY32mL2XJ/data/3284517cb/043cef1a86bd4861a5f6b87bbb38ff53/FLAG7283b91db [2023-11-23 21:36:48,221 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d6f518-a0fb-4f54-b6e9-ce8e49818498/bin/uautomizer-verify-zZY32mL2XJ/data/3284517cb/043cef1a86bd4861a5f6b87bbb38ff53 [2023-11-23 21:36:48,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:36:48,225 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:36:48,227 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:36:48,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:36:48,233 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:36:48,234 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:36:48" (1/1) ... [2023-11-23 21:36:48,235 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e6ed2ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:48, skipping insertion in model container [2023-11-23 21:36:48,235 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:36:48" (1/1) ... [2023-11-23 21:36:48,322 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:36:48,598 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_b4d6f518-a0fb-4f54-b6e9-ce8e49818498/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2023-11-23 21:36:49,474 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:36:49,511 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:36:49,522 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/ctm.ok2.i","-S") [42] [2023-11-23 21:36:49,527 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_b4d6f518-a0fb-4f54-b6e9-ce8e49818498/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2023-11-23 21:36:49,739 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:36:49,795 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:36:49,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:49 WrapperNode [2023-11-23 21:36:49,796 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:36:49,798 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:36:49,798 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:36:49,798 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:36:49,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:49" (1/1) ... [2023-11-23 21:36:49,912 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:49" (1/1) ... [2023-11-23 21:36:50,228 INFO L138 Inliner]: procedures = 99, calls = 2725, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 8386 [2023-11-23 21:36:50,228 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:36:50,229 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:36:50,229 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:36:50,229 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:36:50,243 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:49" (1/1) ... [2023-11-23 21:36:50,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:49" (1/1) ... [2023-11-23 21:36:50,326 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:49" (1/1) ... [2023-11-23 21:36:50,501 INFO L189 HeapSplitter]: Split 2332 memory accesses to 49 slices as follows [2, 80, 86, 37, 37, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46] [2023-11-23 21:36:50,501 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:49" (1/1) ... [2023-11-23 21:36:50,501 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:49" (1/1) ... [2023-11-23 21:36:50,708 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:49" (1/1) ... [2023-11-23 21:36:50,753 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:49" (1/1) ... [2023-11-23 21:36:50,776 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:49" (1/1) ... [2023-11-23 21:36:50,798 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:49" (1/1) ... [2023-11-23 21:36:50,839 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:36:50,840 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:36:50,840 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:36:50,840 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:36:50,841 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:49" (1/1) ... [2023-11-23 21:36:50,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:36:50,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d6f518-a0fb-4f54-b6e9-ce8e49818498/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:36:50,878 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d6f518-a0fb-4f54-b6e9-ce8e49818498/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:36:50,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d6f518-a0fb-4f54-b6e9-ce8e49818498/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:36:50,933 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2023-11-23 21:36:50,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2023-11-23 21:36:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2023-11-23 21:36:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2023-11-23 21:36:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 21:36:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 21:36:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 21:36:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 21:36:50,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 21:36:50,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-23 21:36:50,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-23 21:36:50,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-23 21:36:50,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-23 21:36:50,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-23 21:36:50,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-23 21:36:50,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-23 21:36:50,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-23 21:36:50,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-23 21:36:50,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-23 21:36:50,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-23 21:36:50,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-23 21:36:50,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-11-23 21:36:50,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2023-11-23 21:36:50,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2023-11-23 21:36:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2023-11-23 21:36:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2023-11-23 21:36:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2023-11-23 21:36:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2023-11-23 21:36:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2023-11-23 21:36:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2023-11-23 21:36:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2023-11-23 21:36:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#27 [2023-11-23 21:36:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#28 [2023-11-23 21:36:50,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#29 [2023-11-23 21:36:50,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#30 [2023-11-23 21:36:50,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#31 [2023-11-23 21:36:50,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#32 [2023-11-23 21:36:50,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#33 [2023-11-23 21:36:50,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#34 [2023-11-23 21:36:50,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#35 [2023-11-23 21:36:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#36 [2023-11-23 21:36:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#37 [2023-11-23 21:36:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#38 [2023-11-23 21:36:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#39 [2023-11-23 21:36:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#40 [2023-11-23 21:36:50,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#41 [2023-11-23 21:36:50,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#42 [2023-11-23 21:36:50,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#43 [2023-11-23 21:36:50,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#44 [2023-11-23 21:36:50,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#45 [2023-11-23 21:36:50,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#46 [2023-11-23 21:36:50,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#47 [2023-11-23 21:36:50,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#48 [2023-11-23 21:36:50,950 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2023-11-23 21:36:50,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2023-11-23 21:36:50,951 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-11-23 21:36:50,951 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-11-23 21:36:50,951 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2023-11-23 21:36:50,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2023-11-23 21:36:50,952 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2023-11-23 21:36:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2023-11-23 21:36:50,953 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-11-23 21:36:50,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-11-23 21:36:50,954 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2023-11-23 21:36:50,954 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2023-11-23 21:36:50,955 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2023-11-23 21:36:50,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2023-11-23 21:36:50,955 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2023-11-23 21:36:50,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2023-11-23 21:36:50,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 21:36:50,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 21:36:50,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 21:36:50,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 21:36:50,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 21:36:50,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-23 21:36:50,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-23 21:36:50,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-23 21:36:50,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-23 21:36:50,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-23 21:36:50,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-23 21:36:50,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-23 21:36:50,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-23 21:36:50,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-23 21:36:50,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-23 21:36:50,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-23 21:36:50,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-23 21:36:50,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-11-23 21:36:50,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2023-11-23 21:36:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2023-11-23 21:36:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2023-11-23 21:36:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2023-11-23 21:36:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2023-11-23 21:36:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2023-11-23 21:36:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2023-11-23 21:36:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2023-11-23 21:36:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2023-11-23 21:36:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#27 [2023-11-23 21:36:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#28 [2023-11-23 21:36:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#29 [2023-11-23 21:36:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#30 [2023-11-23 21:36:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#31 [2023-11-23 21:36:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#32 [2023-11-23 21:36:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#33 [2023-11-23 21:36:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#34 [2023-11-23 21:36:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#35 [2023-11-23 21:36:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#36 [2023-11-23 21:36:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#37 [2023-11-23 21:36:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#38 [2023-11-23 21:36:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#39 [2023-11-23 21:36:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#40 [2023-11-23 21:36:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#41 [2023-11-23 21:36:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#42 [2023-11-23 21:36:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#43 [2023-11-23 21:36:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#44 [2023-11-23 21:36:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#45 [2023-11-23 21:36:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#46 [2023-11-23 21:36:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#47 [2023-11-23 21:36:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#48 [2023-11-23 21:36:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-11-23 21:36:50,969 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-11-23 21:36:50,970 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2023-11-23 21:36:50,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2023-11-23 21:36:50,970 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2023-11-23 21:36:50,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2023-11-23 21:36:50,970 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2023-11-23 21:36:50,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2023-11-23 21:36:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2023-11-23 21:36:50,971 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2023-11-23 21:36:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2023-11-23 21:36:50,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2023-11-23 21:36:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-11-23 21:36:50,972 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-11-23 21:36:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:36:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-11-23 21:36:50,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-11-23 21:36:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2023-11-23 21:36:50,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2023-11-23 21:36:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2023-11-23 21:36:50,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2023-11-23 21:36:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2023-11-23 21:36:50,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2023-11-23 21:36:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-11-23 21:36:50,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-11-23 21:36:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2023-11-23 21:36:50,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2023-11-23 21:36:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-11-23 21:36:50,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-11-23 21:36:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2023-11-23 21:36:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2023-11-23 21:36:50,975 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2023-11-23 21:36:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2023-11-23 21:36:50,975 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2023-11-23 21:36:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2023-11-23 21:36:50,975 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2023-11-23 21:36:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2023-11-23 21:36:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2023-11-23 21:36:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2023-11-23 21:36:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2023-11-23 21:36:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2023-11-23 21:36:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-23 21:36:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-23 21:36:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2023-11-23 21:36:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2023-11-23 21:36:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2023-11-23 21:36:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2023-11-23 21:36:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2023-11-23 21:36:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2023-11-23 21:36:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2023-11-23 21:36:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2023-11-23 21:36:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2023-11-23 21:36:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2023-11-23 21:36:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2023-11-23 21:36:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2023-11-23 21:36:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2023-11-23 21:36:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2023-11-23 21:36:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2023-11-23 21:36:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2023-11-23 21:36:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2023-11-23 21:36:50,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2023-11-23 21:36:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2023-11-23 21:36:50,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2023-11-23 21:36:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2023-11-23 21:36:50,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2023-11-23 21:36:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2023-11-23 21:36:50,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2023-11-23 21:36:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2023-11-23 21:36:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2023-11-23 21:36:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 21:36:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 21:36:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 21:36:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 21:36:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 21:36:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 21:36:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-23 21:36:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-23 21:36:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-23 21:36:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-23 21:36:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-23 21:36:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-23 21:36:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-23 21:36:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-23 21:36:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-23 21:36:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-23 21:36:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-23 21:36:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-11-23 21:36:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-11-23 21:36:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-11-23 21:36:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2023-11-23 21:36:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2023-11-23 21:36:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2023-11-23 21:36:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2023-11-23 21:36:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2023-11-23 21:36:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2023-11-23 21:36:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2023-11-23 21:36:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#27 [2023-11-23 21:36:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#28 [2023-11-23 21:36:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#29 [2023-11-23 21:36:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#30 [2023-11-23 21:36:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#31 [2023-11-23 21:36:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#32 [2023-11-23 21:36:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#33 [2023-11-23 21:36:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#34 [2023-11-23 21:36:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#35 [2023-11-23 21:36:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#36 [2023-11-23 21:36:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#37 [2023-11-23 21:36:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#38 [2023-11-23 21:36:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#39 [2023-11-23 21:36:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#40 [2023-11-23 21:36:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#41 [2023-11-23 21:36:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#42 [2023-11-23 21:36:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#43 [2023-11-23 21:36:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#44 [2023-11-23 21:36:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#45 [2023-11-23 21:36:50,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#46 [2023-11-23 21:36:50,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#47 [2023-11-23 21:36:50,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#48 [2023-11-23 21:36:50,986 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2023-11-23 21:36:50,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2023-11-23 21:36:50,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:36:50,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:36:51,698 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:36:51,702 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:37:01,329 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:37:01,656 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:37:01,656 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-23 21:37:01,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:37:01 BoogieIcfgContainer [2023-11-23 21:37:01,658 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:37:01,664 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:37:01,664 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:37:01,668 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:37:01,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:36:48" (1/3) ... [2023-11-23 21:37:01,669 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@601a0b60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:37:01, skipping insertion in model container [2023-11-23 21:37:01,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:49" (2/3) ... [2023-11-23 21:37:01,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@601a0b60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:37:01, skipping insertion in model container [2023-11-23 21:37:01,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:37:01" (3/3) ... [2023-11-23 21:37:01,673 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-2.c [2023-11-23 21:37:01,698 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:37:01,698 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:37:01,855 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:37:01,862 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;@21f617e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:37:01,863 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:37:01,877 INFO L276 IsEmpty]: Start isEmpty. Operand has 2398 states, 2047 states have (on average 1.4948705422569615) internal successors, (3060), 2071 states have internal predecessors, (3060), 304 states have call successors, (304), 45 states have call predecessors, (304), 45 states have return successors, (304), 294 states have call predecessors, (304), 304 states have call successors, (304) [2023-11-23 21:37:01,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-23 21:37:01,900 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:01,901 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] [2023-11-23 21:37:01,902 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:37:01,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:01,907 INFO L85 PathProgramCache]: Analyzing trace with hash -2114174958, now seen corresponding path program 1 times [2023-11-23 21:37:01,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:01,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904437846] [2023-11-23 21:37:01,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:01,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:03,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 21:37:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:03,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:37:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:03,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:37:03,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:03,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904437846] [2023-11-23 21:37:03,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904437846] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:03,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:03,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:37:03,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298600597] [2023-11-23 21:37:03,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:03,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:37:03,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:03,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:37:03,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:37:03,991 INFO L87 Difference]: Start difference. First operand has 2398 states, 2047 states have (on average 1.4948705422569615) internal successors, (3060), 2071 states have internal predecessors, (3060), 304 states have call successors, (304), 45 states have call predecessors, (304), 45 states have return successors, (304), 294 states have call predecessors, (304), 304 states have call successors, (304) 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) [2023-11-23 21:37:07,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:37:09,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:37:11,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:37:25,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:25,621 INFO L93 Difference]: Finished difference Result 5493 states and 9172 transitions. [2023-11-23 21:37:25,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:37:25,624 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 [2023-11-23 21:37:25,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:25,686 INFO L225 Difference]: With dead ends: 5493 [2023-11-23 21:37:25,686 INFO L226 Difference]: Without dead ends: 3087 [2023-11-23 21:37:25,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:37:25,738 INFO L413 NwaCegarLoop]: 2404 mSDtfsCounter, 1609 mSDsluCounter, 2042 mSDsCounter, 0 mSdLazyCounter, 2144 mSolverCounterSat, 1155 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1660 SdHoareTripleChecker+Valid, 4446 SdHoareTripleChecker+Invalid, 3302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1155 IncrementalHoareTripleChecker+Valid, 2144 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:25,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1660 Valid, 4446 Invalid, 3302 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1155 Valid, 2144 Invalid, 3 Unknown, 0 Unchecked, 20.9s Time] [2023-11-23 21:37:25,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3087 states. [2023-11-23 21:37:26,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3087 to 2388. [2023-11-23 21:37:26,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2388 states, 2038 states have (on average 1.1575073601570167) internal successors, (2359), 2062 states have internal predecessors, (2359), 304 states have call successors, (304), 45 states have call predecessors, (304), 45 states have return successors, (303), 293 states have call predecessors, (303), 303 states have call successors, (303) [2023-11-23 21:37:26,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 2966 transitions. [2023-11-23 21:37:26,163 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 2966 transitions. Word has length 143 [2023-11-23 21:37:26,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:26,164 INFO L495 AbstractCegarLoop]: Abstraction has 2388 states and 2966 transitions. [2023-11-23 21:37:26,164 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) [2023-11-23 21:37:26,164 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 2966 transitions. [2023-11-23 21:37:26,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-23 21:37:26,188 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:26,189 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] [2023-11-23 21:37:26,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:37:26,190 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:37:26,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:26,191 INFO L85 PathProgramCache]: Analyzing trace with hash 463913856, now seen corresponding path program 1 times [2023-11-23 21:37:26,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:26,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044383385] [2023-11-23 21:37:26,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:26,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:28,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 21:37:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:28,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:37:28,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:29,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 21:37:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:29,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-23 21:37:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:29,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-23 21:37:29,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:29,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-23 21:37:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:29,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 21:37:29,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:29,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:37:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:29,394 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 21:37:29,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:29,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044383385] [2023-11-23 21:37:29,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044383385] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:29,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:29,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 21:37:29,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287181983] [2023-11-23 21:37:29,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:29,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 21:37:29,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:29,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 21:37:29,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:37:29,406 INFO L87 Difference]: Start difference. First operand 2388 states and 2966 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) [2023-11-23 21:37:35,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []