./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_a6feaf40-0e31-46c3-9501-c6d92fece8b9/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6feaf40-0e31-46c3-9501-c6d92fece8b9/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_a6feaf40-0e31-46c3-9501-c6d92fece8b9/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6feaf40-0e31-46c3-9501-c6d92fece8b9/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6feaf40-0e31-46c3-9501-c6d92fece8b9/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_a6feaf40-0e31-46c3-9501-c6d92fece8b9/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 677126e8d6773c92cc337bfe0a3ec155f49f784424155f33a8c9c24ee0a42113 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:51:45,061 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:51:45,129 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6feaf40-0e31-46c3-9501-c6d92fece8b9/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 05:51:45,134 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:51:45,135 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:51:45,160 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:51:45,161 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:51:45,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:51:45,162 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:51:45,163 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:51:45,163 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:51:45,164 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:51:45,165 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:51:45,165 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:51:45,166 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:51:45,166 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:51:45,167 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:51:45,167 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:51:45,168 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:51:45,168 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:51:45,169 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:51:45,169 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:51:45,170 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:51:45,170 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:51:45,171 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:51:45,171 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:51:45,172 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:51:45,172 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:51:45,173 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:51:45,173 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:51:45,174 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:51:45,175 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:51:45,175 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:51:45,176 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:51:45,176 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:51:45,176 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:51:45,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:51:45,177 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:51:45,177 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:51:45,177 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:51:45,178 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:51:45,178 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:51:45,178 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_a6feaf40-0e31-46c3-9501-c6d92fece8b9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6feaf40-0e31-46c3-9501-c6d92fece8b9/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 677126e8d6773c92cc337bfe0a3ec155f49f784424155f33a8c9c24ee0a42113 [2023-11-29 05:51:45,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:51:45,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:51:45,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:51:45,426 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:51:45,426 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:51:45,428 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6feaf40-0e31-46c3-9501-c6d92fece8b9/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c [2023-11-29 05:51:48,202 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:51:48,400 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:51:48,400 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6feaf40-0e31-46c3-9501-c6d92fece8b9/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c [2023-11-29 05:51:48,411 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6feaf40-0e31-46c3-9501-c6d92fece8b9/bin/uautomizer-verify-BQ2R08f2Ya/data/394270e52/d5c6ee4eb0ca4e86b1c51baf949caf3d/FLAG56fcda2ba [2023-11-29 05:51:48,424 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6feaf40-0e31-46c3-9501-c6d92fece8b9/bin/uautomizer-verify-BQ2R08f2Ya/data/394270e52/d5c6ee4eb0ca4e86b1c51baf949caf3d [2023-11-29 05:51:48,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:51:48,427 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:51:48,428 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:51:48,428 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:51:48,434 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:51:48,435 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:51:48" (1/1) ... [2023-11-29 05:51:48,436 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54eaf8d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:48, skipping insertion in model container [2023-11-29 05:51:48,436 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:51:48" (1/1) ... [2023-11-29 05:51:48,474 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:51:48,622 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_a6feaf40-0e31-46c3-9501-c6d92fece8b9/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c[640,653] [2023-11-29 05:51:48,690 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:51:48,704 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:51:48,719 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_a6feaf40-0e31-46c3-9501-c6d92fece8b9/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c[640,653] [2023-11-29 05:51:48,752 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:51:48,772 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:51:48,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:48 WrapperNode [2023-11-29 05:51:48,773 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:51:48,774 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:51:48,774 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:51:48,775 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:51:48,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:48" (1/1) ... [2023-11-29 05:51:48,794 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:48" (1/1) ... [2023-11-29 05:51:48,824 INFO L138 Inliner]: procedures = 31, calls = 35, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 227 [2023-11-29 05:51:48,825 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:51:48,825 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:51:48,826 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:51:48,826 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:51:48,840 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:48" (1/1) ... [2023-11-29 05:51:48,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:48" (1/1) ... [2023-11-29 05:51:48,843 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:48" (1/1) ... [2023-11-29 05:51:48,860 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 05:51:48,860 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:48" (1/1) ... [2023-11-29 05:51:48,861 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:48" (1/1) ... [2023-11-29 05:51:48,868 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:48" (1/1) ... [2023-11-29 05:51:48,874 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:48" (1/1) ... [2023-11-29 05:51:48,876 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:48" (1/1) ... [2023-11-29 05:51:48,879 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:48" (1/1) ... [2023-11-29 05:51:48,882 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:51:48,883 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:51:48,883 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:51:48,883 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:51:48,884 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:48" (1/1) ... [2023-11-29 05:51:48,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:51:48,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6feaf40-0e31-46c3-9501-c6d92fece8b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:51:48,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6feaf40-0e31-46c3-9501-c6d92fece8b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:51:48,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6feaf40-0e31-46c3-9501-c6d92fece8b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:51:48,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:51:48,953 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-11-29 05:51:48,953 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-11-29 05:51:48,954 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-11-29 05:51:48,954 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-11-29 05:51:48,954 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-11-29 05:51:48,954 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-11-29 05:51:48,954 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-11-29 05:51:48,955 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-11-29 05:51:48,955 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-11-29 05:51:48,955 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-11-29 05:51:48,955 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-11-29 05:51:48,955 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-11-29 05:51:48,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:51:48,956 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-11-29 05:51:48,956 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-11-29 05:51:48,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:51:48,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:51:48,956 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-11-29 05:51:48,957 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-11-29 05:51:49,032 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:51:49,034 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:51:49,323 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##54: assume !(1 == ~q_free~0); [2023-11-29 05:51:49,324 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##53: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0#1; [2023-11-29 05:51:49,343 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:51:49,393 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:51:49,393 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-29 05:51:49,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:51:49 BoogieIcfgContainer [2023-11-29 05:51:49,394 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:51:49,397 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:51:49,397 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:51:49,400 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:51:49,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:51:48" (1/3) ... [2023-11-29 05:51:49,401 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313d200c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:51:49, skipping insertion in model container [2023-11-29 05:51:49,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:48" (2/3) ... [2023-11-29 05:51:49,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313d200c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:51:49, skipping insertion in model container [2023-11-29 05:51:49,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:51:49" (3/3) ... [2023-11-29 05:51:49,404 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil.c [2023-11-29 05:51:49,422 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:51:49,423 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 05:51:49,469 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:51:49,476 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;@1dc24423, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:51:49,476 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 05:51:49,481 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 78 states have (on average 1.6282051282051282) internal successors, (127), 82 states have internal predecessors, (127), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 05:51:49,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 05:51:49,494 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:49,494 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] [2023-11-29 05:51:49,495 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:51:49,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:49,501 INFO L85 PathProgramCache]: Analyzing trace with hash -999542766, now seen corresponding path program 1 times [2023-11-29 05:51:49,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:49,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203602402] [2023-11-29 05:51:49,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:49,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:49,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:51:49,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:49,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 05:51:49,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:49,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 05:51:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:49,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:51:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:49,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 05:51:49,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:49,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 05:51:49,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:49,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 05:51:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:49,982 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 05:51:49,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:49,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203602402] [2023-11-29 05:51:49,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203602402] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:51:49,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:51:49,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 05:51:49,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151029640] [2023-11-29 05:51:49,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:51:49,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:51:49,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:50,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:51:50,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:51:50,030 INFO L87 Difference]: Start difference. First operand has 104 states, 78 states have (on average 1.6282051282051282) internal successors, (127), 82 states have internal predecessors, (127), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 05:51:50,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:50,919 INFO L93 Difference]: Finished difference Result 340 states and 532 transitions. [2023-11-29 05:51:50,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 05:51:50,921 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 56 [2023-11-29 05:51:50,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:50,934 INFO L225 Difference]: With dead ends: 340 [2023-11-29 05:51:50,934 INFO L226 Difference]: Without dead ends: 239 [2023-11-29 05:51:50,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:51:50,943 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 451 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:50,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 370 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 05:51:50,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2023-11-29 05:51:51,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 202. [2023-11-29 05:51:51,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 156 states have (on average 1.4871794871794872) internal successors, (232), 160 states have internal predecessors, (232), 29 states have call successors, (29), 15 states have call predecessors, (29), 16 states have return successors, (32), 28 states have call predecessors, (32), 27 states have call successors, (32) [2023-11-29 05:51:51,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 293 transitions. [2023-11-29 05:51:51,026 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 293 transitions. Word has length 56 [2023-11-29 05:51:51,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:51,026 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 293 transitions. [2023-11-29 05:51:51,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 05:51:51,027 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 293 transitions. [2023-11-29 05:51:51,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 05:51:51,031 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:51,031 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] [2023-11-29 05:51:51,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:51:51,032 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:51:51,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:51,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1351431762, now seen corresponding path program 1 times [2023-11-29 05:51:51,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:51,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367846092] [2023-11-29 05:51:51,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:51,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:51,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:51:51,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:51,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 05:51:51,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:51,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 05:51:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:51,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:51:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:51,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 05:51:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:51,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 05:51:51,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:51,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 05:51:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:51,273 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 05:51:51,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:51,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367846092] [2023-11-29 05:51:51,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367846092] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:51:51,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:51:51,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 05:51:51,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880665000] [2023-11-29 05:51:51,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:51:51,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:51:51,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:51,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:51:51,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:51:51,278 INFO L87 Difference]: Start difference. First operand 202 states and 293 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 05:51:52,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:52,320 INFO L93 Difference]: Finished difference Result 563 states and 823 transitions. [2023-11-29 05:51:52,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 05:51:52,321 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 56 [2023-11-29 05:51:52,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:52,327 INFO L225 Difference]: With dead ends: 563 [2023-11-29 05:51:52,328 INFO L226 Difference]: Without dead ends: 375 [2023-11-29 05:51:52,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2023-11-29 05:51:52,332 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 429 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:52,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 615 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 05:51:52,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2023-11-29 05:51:52,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 303. [2023-11-29 05:51:52,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 235 states have (on average 1.476595744680851) internal successors, (347), 241 states have internal predecessors, (347), 42 states have call successors, (42), 22 states have call predecessors, (42), 25 states have return successors, (53), 42 states have call predecessors, (53), 40 states have call successors, (53) [2023-11-29 05:51:52,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 442 transitions. [2023-11-29 05:51:52,394 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 442 transitions. Word has length 56 [2023-11-29 05:51:52,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:52,395 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 442 transitions. [2023-11-29 05:51:52,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 05:51:52,395 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 442 transitions. [2023-11-29 05:51:52,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 05:51:52,399 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:52,400 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] [2023-11-29 05:51:52,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 05:51:52,400 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:51:52,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:52,401 INFO L85 PathProgramCache]: Analyzing trace with hash -2050049196, now seen corresponding path program 1 times [2023-11-29 05:51:52,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:52,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388006426] [2023-11-29 05:51:52,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:52,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:52,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:51:52,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:52,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 05:51:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:52,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 05:51:52,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:52,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:51:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:52,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 05:51:52,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:52,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 05:51:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:52,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 05:51:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:52,587 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 05:51:52,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:52,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388006426] [2023-11-29 05:51:52,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388006426] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:51:52,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:51:52,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 05:51:52,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903240234] [2023-11-29 05:51:52,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:51:52,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:51:52,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:52,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:51:52,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:51:52,591 INFO L87 Difference]: Start difference. First operand 303 states and 442 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-29 05:51:53,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:53,866 INFO L93 Difference]: Finished difference Result 1171 states and 1716 transitions. [2023-11-29 05:51:53,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 05:51:53,867 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) Word has length 56 [2023-11-29 05:51:53,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:53,876 INFO L225 Difference]: With dead ends: 1171 [2023-11-29 05:51:53,876 INFO L226 Difference]: Without dead ends: 870 [2023-11-29 05:51:53,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=503, Unknown=0, NotChecked=0, Total=650 [2023-11-29 05:51:53,881 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 890 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:53,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 735 Invalid, 1222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 997 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 05:51:53,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2023-11-29 05:51:53,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 774. [2023-11-29 05:51:53,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 610 states have (on average 1.4229508196721312) internal successors, (868), 624 states have internal predecessors, (868), 92 states have call successors, (92), 63 states have call predecessors, (92), 71 states have return successors, (117), 88 states have call predecessors, (117), 90 states have call successors, (117) [2023-11-29 05:51:53,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1077 transitions. [2023-11-29 05:51:53,961 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1077 transitions. Word has length 56 [2023-11-29 05:51:53,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:53,961 INFO L495 AbstractCegarLoop]: Abstraction has 774 states and 1077 transitions. [2023-11-29 05:51:53,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-29 05:51:53,962 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1077 transitions. [2023-11-29 05:51:53,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 05:51:53,964 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:53,964 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] [2023-11-29 05:51:53,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 05:51:53,965 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:51:53,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:53,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1834223676, now seen corresponding path program 1 times [2023-11-29 05:51:53,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:53,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951732487] [2023-11-29 05:51:53,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:53,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:53,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:54,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:51:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:54,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 05:51:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:54,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 05:51:54,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:54,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:51:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:54,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:51:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:54,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 05:51:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:54,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-29 05:51:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:54,146 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 05:51:54,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:54,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951732487] [2023-11-29 05:51:54,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951732487] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:51:54,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:51:54,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 05:51:54,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753163061] [2023-11-29 05:51:54,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:51:54,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:51:54,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:54,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:51:54,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:51:54,149 INFO L87 Difference]: Start difference. First operand 774 states and 1077 transitions. Second operand has 9 states, 8 states have (on average 5.25) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:51:54,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:54,754 INFO L93 Difference]: Finished difference Result 1622 states and 2270 transitions. [2023-11-29 05:51:54,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 05:51:54,755 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 57 [2023-11-29 05:51:54,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:54,762 INFO L225 Difference]: With dead ends: 1622 [2023-11-29 05:51:54,762 INFO L226 Difference]: Without dead ends: 856 [2023-11-29 05:51:54,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:51:54,767 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 126 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:54,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 515 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:51:54,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2023-11-29 05:51:54,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 790. [2023-11-29 05:51:54,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 622 states have (on average 1.4083601286173633) internal successors, (876), 636 states have internal predecessors, (876), 92 states have call successors, (92), 63 states have call predecessors, (92), 75 states have return successors, (121), 92 states have call predecessors, (121), 90 states have call successors, (121) [2023-11-29 05:51:54,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1089 transitions. [2023-11-29 05:51:54,852 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1089 transitions. Word has length 57 [2023-11-29 05:51:54,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:54,853 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 1089 transitions. [2023-11-29 05:51:54,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:51:54,853 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1089 transitions. [2023-11-29 05:51:54,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 05:51:54,854 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:54,855 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] [2023-11-29 05:51:54,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 05:51:54,855 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:51:54,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:54,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1906610234, now seen corresponding path program 1 times [2023-11-29 05:51:54,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:54,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567852519] [2023-11-29 05:51:54,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:54,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:54,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:51:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:54,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 05:51:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:54,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 05:51:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:54,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:51:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:54,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:51:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:55,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 05:51:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:55,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-29 05:51:55,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:55,011 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 05:51:55,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:55,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567852519] [2023-11-29 05:51:55,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567852519] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:51:55,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:51:55,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 05:51:55,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180923895] [2023-11-29 05:51:55,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:51:55,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:51:55,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:55,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:51:55,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:51:55,015 INFO L87 Difference]: Start difference. First operand 790 states and 1089 transitions. Second operand has 9 states, 8 states have (on average 5.25) internal successors, (42), 6 states have internal predecessors, (42), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 05:51:56,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:56,316 INFO L93 Difference]: Finished difference Result 2983 states and 4212 transitions. [2023-11-29 05:51:56,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 05:51:56,317 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 6 states have internal predecessors, (42), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 57 [2023-11-29 05:51:56,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:56,323 INFO L225 Difference]: With dead ends: 2983 [2023-11-29 05:51:56,323 INFO L226 Difference]: Without dead ends: 1158 [2023-11-29 05:51:56,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=503, Unknown=0, NotChecked=0, Total=650 [2023-11-29 05:51:56,329 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 767 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:56,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 903 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 05:51:56,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2023-11-29 05:51:56,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1040. [2023-11-29 05:51:56,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1040 states, 800 states have (on average 1.35375) internal successors, (1083), 816 states have internal predecessors, (1083), 132 states have call successors, (132), 91 states have call predecessors, (132), 107 states have return successors, (167), 134 states have call predecessors, (167), 130 states have call successors, (167) [2023-11-29 05:51:56,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1382 transitions. [2023-11-29 05:51:56,407 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1382 transitions. Word has length 57 [2023-11-29 05:51:56,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:56,407 INFO L495 AbstractCegarLoop]: Abstraction has 1040 states and 1382 transitions. [2023-11-29 05:51:56,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 6 states have internal predecessors, (42), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 05:51:56,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1382 transitions. [2023-11-29 05:51:56,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-29 05:51:56,409 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:56,409 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] [2023-11-29 05:51:56,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 05:51:56,409 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:51:56,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:56,410 INFO L85 PathProgramCache]: Analyzing trace with hash 2045842353, now seen corresponding path program 1 times [2023-11-29 05:51:56,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:56,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505769926] [2023-11-29 05:51:56,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:56,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:56,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:51:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:56,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 05:51:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:56,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 05:51:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:56,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:51:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:56,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:51:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:56,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 05:51:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:56,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 05:51:56,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:56,569 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 05:51:56,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:56,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505769926] [2023-11-29 05:51:56,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505769926] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:51:56,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:51:56,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 05:51:56,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092052647] [2023-11-29 05:51:56,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:51:56,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:51:56,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:56,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:51:56,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:51:56,572 INFO L87 Difference]: Start difference. First operand 1040 states and 1382 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:51:57,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:57,184 INFO L93 Difference]: Finished difference Result 2220 states and 2984 transitions. [2023-11-29 05:51:57,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 05:51:57,185 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2023-11-29 05:51:57,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:57,195 INFO L225 Difference]: With dead ends: 2220 [2023-11-29 05:51:57,195 INFO L226 Difference]: Without dead ends: 1188 [2023-11-29 05:51:57,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:51:57,200 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 121 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:57,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 481 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:51:57,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2023-11-29 05:51:57,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 1088. [2023-11-29 05:51:57,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 836 states have (on average 1.3385167464114833) internal successors, (1119), 852 states have internal predecessors, (1119), 132 states have call successors, (132), 91 states have call predecessors, (132), 119 states have return successors, (179), 146 states have call predecessors, (179), 130 states have call successors, (179) [2023-11-29 05:51:57,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1430 transitions. [2023-11-29 05:51:57,348 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1430 transitions. Word has length 58 [2023-11-29 05:51:57,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:57,348 INFO L495 AbstractCegarLoop]: Abstraction has 1088 states and 1430 transitions. [2023-11-29 05:51:57,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:51:57,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1430 transitions. [2023-11-29 05:51:57,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-29 05:51:57,350 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:57,350 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] [2023-11-29 05:51:57,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 05:51:57,350 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:51:57,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:57,351 INFO L85 PathProgramCache]: Analyzing trace with hash -2108576333, now seen corresponding path program 1 times [2023-11-29 05:51:57,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:57,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123443118] [2023-11-29 05:51:57,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:57,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:57,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:57,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:51:57,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:57,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 05:51:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:57,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 05:51:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:57,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:51:57,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:57,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:51:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:57,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 05:51:57,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:57,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 05:51:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:57,540 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 05:51:57,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:57,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123443118] [2023-11-29 05:51:57,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123443118] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:51:57,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:51:57,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 05:51:57,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173558800] [2023-11-29 05:51:57,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:51:57,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:51:57,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:57,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:51:57,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:51:57,544 INFO L87 Difference]: Start difference. First operand 1088 states and 1430 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 05:51:58,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:58,438 INFO L93 Difference]: Finished difference Result 2133 states and 2816 transitions. [2023-11-29 05:51:58,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 05:51:58,440 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2023-11-29 05:51:58,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:58,448 INFO L225 Difference]: With dead ends: 2133 [2023-11-29 05:51:58,449 INFO L226 Difference]: Without dead ends: 1053 [2023-11-29 05:51:58,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2023-11-29 05:51:58,453 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 440 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:58,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 410 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 05:51:58,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2023-11-29 05:51:58,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 882. [2023-11-29 05:51:58,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 681 states have (on average 1.327459618208517) internal successors, (904), 695 states have internal predecessors, (904), 105 states have call successors, (105), 73 states have call predecessors, (105), 95 states have return successors, (143), 114 states have call predecessors, (143), 103 states have call successors, (143) [2023-11-29 05:51:58,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1152 transitions. [2023-11-29 05:51:58,555 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1152 transitions. Word has length 58 [2023-11-29 05:51:58,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:58,556 INFO L495 AbstractCegarLoop]: Abstraction has 882 states and 1152 transitions. [2023-11-29 05:51:58,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 05:51:58,556 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1152 transitions. [2023-11-29 05:51:58,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-29 05:51:58,557 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:58,557 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] [2023-11-29 05:51:58,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 05:51:58,558 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:51:58,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:58,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1368742513, now seen corresponding path program 1 times [2023-11-29 05:51:58,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:58,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050191580] [2023-11-29 05:51:58,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:58,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:58,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:51:58,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:58,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 05:51:58,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:58,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 05:51:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:58,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:51:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:58,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:51:58,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:58,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 05:51:58,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:58,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 05:51:58,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:58,681 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 05:51:58,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:58,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050191580] [2023-11-29 05:51:58,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050191580] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:51:58,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:51:58,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 05:51:58,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013033226] [2023-11-29 05:51:58,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:51:58,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:51:58,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:58,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:51:58,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:51:58,685 INFO L87 Difference]: Start difference. First operand 882 states and 1152 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 05:51:59,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:59,346 INFO L93 Difference]: Finished difference Result 2696 states and 3572 transitions. [2023-11-29 05:51:59,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 05:51:59,347 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2023-11-29 05:51:59,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:59,361 INFO L225 Difference]: With dead ends: 2696 [2023-11-29 05:51:59,361 INFO L226 Difference]: Without dead ends: 1823 [2023-11-29 05:51:59,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:51:59,366 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 405 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:59,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 271 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:51:59,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1823 states. [2023-11-29 05:51:59,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1823 to 1715. [2023-11-29 05:51:59,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1307 states have (on average 1.297628156082632) internal successors, (1696), 1334 states have internal predecessors, (1696), 212 states have call successors, (212), 145 states have call predecessors, (212), 195 states have return successors, (335), 237 states have call predecessors, (335), 210 states have call successors, (335) [2023-11-29 05:51:59,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2243 transitions. [2023-11-29 05:51:59,550 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2243 transitions. Word has length 58 [2023-11-29 05:51:59,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:59,551 INFO L495 AbstractCegarLoop]: Abstraction has 1715 states and 2243 transitions. [2023-11-29 05:51:59,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 05:51:59,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2243 transitions. [2023-11-29 05:51:59,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 05:51:59,552 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:59,552 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] [2023-11-29 05:51:59,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 05:51:59,553 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:51:59,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:59,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1945360166, now seen corresponding path program 1 times [2023-11-29 05:51:59,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:59,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953722586] [2023-11-29 05:51:59,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:59,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:59,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:51:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:59,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 05:51:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:59,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 05:51:59,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:59,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:51:59,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:59,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:51:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:59,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 05:51:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:59,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 05:51:59,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:59,643 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 05:51:59,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:59,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953722586] [2023-11-29 05:51:59,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953722586] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:51:59,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:51:59,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 05:51:59,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186529884] [2023-11-29 05:51:59,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:51:59,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:51:59,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:59,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:51:59,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:51:59,646 INFO L87 Difference]: Start difference. First operand 1715 states and 2243 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:52:00,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:52:00,113 INFO L93 Difference]: Finished difference Result 3394 states and 4520 transitions. [2023-11-29 05:52:00,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:52:00,114 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 59 [2023-11-29 05:52:00,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:52:00,115 INFO L225 Difference]: With dead ends: 3394 [2023-11-29 05:52:00,115 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 05:52:00,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:52:00,126 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 244 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:52:00,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 155 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:52:00,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 05:52:00,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 05:52:00,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:52:00,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 05:52:00,128 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2023-11-29 05:52:00,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:52:00,128 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 05:52:00,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:52:00,128 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 05:52:00,128 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 05:52:00,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 05:52:00,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 05:52:00,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 05:52:07,746 INFO L895 garLoopResultBuilder]: At program point L385(line 385) the Hoare annotation is: (let ((.cse0 (and (= |old(~p_dw_st~0)| ~p_dw_st~0) (= ~c_dr_st~0 |old(~c_dr_st~0)|)))) (and (or (not (= ~c_dr_pc~0 0)) .cse0) (or .cse0 (not (= ~c_dr_pc~0 1))))) [2023-11-29 05:52:07,746 INFO L895 garLoopResultBuilder]: At program point L387-2(lines 387 391) the Hoare annotation is: (let ((.cse0 (not (= ~c_dr_pc~0 0))) (.cse1 (= |old(~p_dw_st~0)| ~p_dw_st~0)) (.cse2 (= ~c_dr_st~0 |old(~c_dr_st~0)|)) (.cse4 (= activate_threads_~tmp~1 0)) (.cse3 (= ~p_dw_pc~0 1)) (.cse5 (not (= ~q_read_ev~0 2)))) (and (or .cse0 (and .cse1 .cse2) (= ~p_dw_st~0 0)) (or .cse0 .cse2 (not (= |old(~p_dw_st~0)| 0))) (or .cse0 .cse3 (and .cse1 .cse4) .cse5) (or (and .cse1 .cse2 .cse4) .cse3 (not (= ~c_dr_pc~0 1)) .cse5))) [2023-11-29 05:52:07,747 INFO L899 garLoopResultBuilder]: For program point L385-1(line 385) no Hoare annotation was computed. [2023-11-29 05:52:07,747 INFO L899 garLoopResultBuilder]: For program point L395(lines 395 399) no Hoare annotation was computed. [2023-11-29 05:52:07,747 INFO L899 garLoopResultBuilder]: For program point activate_threadsEXIT(lines 379 403) no Hoare annotation was computed. [2023-11-29 05:52:07,747 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 379 403) the Hoare annotation is: (let ((.cse0 (and (= |old(~p_dw_st~0)| ~p_dw_st~0) (= ~c_dr_st~0 |old(~c_dr_st~0)|)))) (and (or (not (= ~c_dr_pc~0 0)) .cse0) (or .cse0 (not (= ~c_dr_pc~0 1))))) [2023-11-29 05:52:07,747 INFO L899 garLoopResultBuilder]: For program point L393(line 393) no Hoare annotation was computed. [2023-11-29 05:52:07,747 INFO L899 garLoopResultBuilder]: For program point L395-2(lines 379 403) no Hoare annotation was computed. [2023-11-29 05:52:07,747 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 391) no Hoare annotation was computed. [2023-11-29 05:52:07,747 INFO L899 garLoopResultBuilder]: For program point exists_runnable_threadEXIT(lines 287 306) no Hoare annotation was computed. [2023-11-29 05:52:07,748 INFO L899 garLoopResultBuilder]: For program point L303(lines 290 305) no Hoare annotation was computed. [2023-11-29 05:52:07,748 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 287 306) the Hoare annotation is: true [2023-11-29 05:52:07,748 INFO L899 garLoopResultBuilder]: For program point L295(lines 295 300) no Hoare annotation was computed. [2023-11-29 05:52:07,748 INFO L899 garLoopResultBuilder]: For program point L291(lines 291 301) no Hoare annotation was computed. [2023-11-29 05:52:07,748 INFO L899 garLoopResultBuilder]: For program point L96(lines 96 101) no Hoare annotation was computed. [2023-11-29 05:52:07,748 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 104) no Hoare annotation was computed. [2023-11-29 05:52:07,748 INFO L899 garLoopResultBuilder]: For program point L95-2(lines 94 118) no Hoare annotation was computed. [2023-11-29 05:52:07,748 INFO L899 garLoopResultBuilder]: For program point L116(lines 94 118) no Hoare annotation was computed. [2023-11-29 05:52:07,749 INFO L899 garLoopResultBuilder]: For program point L106(lines 106 111) no Hoare annotation was computed. [2023-11-29 05:52:07,749 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 91 119) the Hoare annotation is: true [2023-11-29 05:52:07,749 INFO L899 garLoopResultBuilder]: For program point L105-1(lines 105 114) no Hoare annotation was computed. [2023-11-29 05:52:07,749 INFO L899 garLoopResultBuilder]: For program point is_do_read_c_triggeredEXIT(lines 91 119) no Hoare annotation was computed. [2023-11-29 05:52:07,749 INFO L899 garLoopResultBuilder]: For program point L316-1(lines 307 324) no Hoare annotation was computed. [2023-11-29 05:52:07,749 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 307 324) the Hoare annotation is: (let ((.cse0 (and (= ~q_write_ev~0 |old(~q_write_ev~0)|) (= |old(~q_read_ev~0)| ~q_read_ev~0)))) (and (or .cse0 (not (= ~c_dr_pc~0 1))) (or (not (= ~c_dr_pc~0 0)) .cse0))) [2023-11-29 05:52:07,749 INFO L899 garLoopResultBuilder]: For program point L311-1(lines 310 323) no Hoare annotation was computed. [2023-11-29 05:52:07,749 INFO L899 garLoopResultBuilder]: For program point fire_delta_eventsEXIT(lines 307 324) no Hoare annotation was computed. [2023-11-29 05:52:07,750 INFO L899 garLoopResultBuilder]: For program point L258-1(lines 254 268) no Hoare annotation was computed. [2023-11-29 05:52:07,750 INFO L899 garLoopResultBuilder]: For program point update_channelsEXIT(lines 254 268) no Hoare annotation was computed. [2023-11-29 05:52:07,750 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 254 268) the Hoare annotation is: (let ((.cse0 (and (= ~q_ev~0 |old(~q_ev~0)|) (= ~q_write_ev~0 |old(~q_write_ev~0)|) (= |old(~q_read_ev~0)| ~q_read_ev~0) (= ~q_req_up~0 |old(~q_req_up~0)|)))) (and (or .cse0 (not (= ~c_dr_pc~0 1))) (or .cse0 (not (= ~c_dr_pc~0 0))))) [2023-11-29 05:52:07,750 INFO L899 garLoopResultBuilder]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2023-11-29 05:52:07,750 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 40) no Hoare annotation was computed. [2023-11-29 05:52:07,751 INFO L899 garLoopResultBuilder]: For program point L36-2(lines 35 50) no Hoare annotation was computed. [2023-11-29 05:52:07,751 INFO L899 garLoopResultBuilder]: For program point reset_delta_eventsEXIT(lines 325 342) no Hoare annotation was computed. [2023-11-29 05:52:07,751 INFO L899 garLoopResultBuilder]: For program point L334-1(lines 325 342) no Hoare annotation was computed. [2023-11-29 05:52:07,751 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 325 342) the Hoare annotation is: (let ((.cse0 (and (= ~q_write_ev~0 |old(~q_write_ev~0)|) (= |old(~q_read_ev~0)| ~q_read_ev~0)))) (and (or .cse0 (not (= ~c_dr_pc~0 1))) (or (not (= ~c_dr_pc~0 0)) .cse0))) [2023-11-29 05:52:07,751 INFO L899 garLoopResultBuilder]: For program point L329-1(lines 328 341) no Hoare annotation was computed. [2023-11-29 05:52:07,752 INFO L899 garLoopResultBuilder]: For program point L514-1(line 514) no Hoare annotation was computed. [2023-11-29 05:52:07,752 INFO L899 garLoopResultBuilder]: For program point L415(lines 415 419) no Hoare annotation was computed. [2023-11-29 05:52:07,752 INFO L899 garLoopResultBuilder]: For program point L415-1(lines 410 450) no Hoare annotation was computed. [2023-11-29 05:52:07,752 INFO L899 garLoopResultBuilder]: For program point L349(lines 349 356) no Hoare annotation was computed. [2023-11-29 05:52:07,752 INFO L899 garLoopResultBuilder]: For program point L349-2(lines 345 360) no Hoare annotation was computed. [2023-11-29 05:52:07,752 INFO L899 garLoopResultBuilder]: For program point L465(lines 465 470) no Hoare annotation was computed. [2023-11-29 05:52:07,753 INFO L899 garLoopResultBuilder]: For program point L234(lines 234 246) no Hoare annotation was computed. [2023-11-29 05:52:07,753 INFO L899 garLoopResultBuilder]: For program point L152(lines 152 160) no Hoare annotation was computed. [2023-11-29 05:52:07,753 INFO L899 garLoopResultBuilder]: For program point do_write_p_returnLabel#1(lines 145 193) no Hoare annotation was computed. [2023-11-29 05:52:07,753 INFO L899 garLoopResultBuilder]: For program point start_simulation_returnLabel#1(lines 476 534) no Hoare annotation was computed. [2023-11-29 05:52:07,753 INFO L895 garLoopResultBuilder]: At program point L499(line 499) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-29 05:52:07,754 INFO L899 garLoopResultBuilder]: For program point L499-1(line 499) no Hoare annotation was computed. [2023-11-29 05:52:07,754 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 241) no Hoare annotation was computed. [2023-11-29 05:52:07,754 INFO L899 garLoopResultBuilder]: For program point L202(lines 202 206) no Hoare annotation was computed. [2023-11-29 05:52:07,754 INFO L895 garLoopResultBuilder]: At program point L484(line 484) the Hoare annotation is: (and (= ~p_dw_pc~0 0) (= ~q_req_up~0 0) (= ~q_write_ev~0 2) (= ~p_dw_st~0 0) (= ~q_read_ev~0 2) (= ~c_dr_pc~0 0)) [2023-11-29 05:52:07,754 INFO L899 garLoopResultBuilder]: For program point L484-1(line 484) no Hoare annotation was computed. [2023-11-29 05:52:07,755 INFO L895 garLoopResultBuilder]: At program point L435(lines 410 450) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-29 05:52:07,755 INFO L899 garLoopResultBuilder]: For program point L171(lines 171 179) no Hoare annotation was computed. [2023-11-29 05:52:07,755 INFO L899 garLoopResultBuilder]: For program point L155(lines 155 159) no Hoare annotation was computed. [2023-11-29 05:52:07,755 INFO L899 garLoopResultBuilder]: For program point L370-1(lines 361 378) no Hoare annotation was computed. [2023-11-29 05:52:07,755 INFO L895 garLoopResultBuilder]: At program point L486(line 486) the Hoare annotation is: (and (= ~p_dw_pc~0 0) (= ~q_req_up~0 0) (= ~q_write_ev~0 2) (= ~q_read_ev~0 2) (= ~c_dr_pc~0 0)) [2023-11-29 05:52:07,755 INFO L895 garLoopResultBuilder]: At program point L486-1(line 486) the Hoare annotation is: (and (= ~p_dw_pc~0 0) (= ~q_req_up~0 0) (= ~q_write_ev~0 2) (= ~q_read_ev~0 2) (= ~c_dr_pc~0 0)) [2023-11-29 05:52:07,756 INFO L899 garLoopResultBuilder]: For program point L420(lines 410 450) no Hoare annotation was computed. [2023-11-29 05:52:07,756 INFO L895 garLoopResultBuilder]: At program point L503(line 503) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-29 05:52:07,756 INFO L895 garLoopResultBuilder]: At program point L503-1(line 503) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-29 05:52:07,756 INFO L895 garLoopResultBuilder]: At program point L239(line 239) the Hoare annotation is: false [2023-11-29 05:52:07,756 INFO L895 garLoopResultBuilder]: At program point L487(line 487) the Hoare annotation is: (and (= ~p_dw_pc~0 0) (= ~q_req_up~0 0) (= ~q_write_ev~0 2) (= ~q_read_ev~0 2) (= ~c_dr_pc~0 0)) [2023-11-29 05:52:07,756 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 05:52:07,757 INFO L895 garLoopResultBuilder]: At program point L504(line 504) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-29 05:52:07,757 INFO L899 garLoopResultBuilder]: For program point L273(lines 273 277) no Hoare annotation was computed. [2023-11-29 05:52:07,757 INFO L899 garLoopResultBuilder]: For program point L273-2(lines 272 285) no Hoare annotation was computed. [2023-11-29 05:52:07,757 INFO L895 garLoopResultBuilder]: At program point L505(line 505) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-29 05:52:07,757 INFO L899 garLoopResultBuilder]: For program point L472(lines 461 474) no Hoare annotation was computed. [2023-11-29 05:52:07,757 INFO L899 garLoopResultBuilder]: For program point L439(lines 439 446) no Hoare annotation was computed. [2023-11-29 05:52:07,758 INFO L899 garLoopResultBuilder]: For program point L523(lines 523 527) no Hoare annotation was computed. [2023-11-29 05:52:07,758 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 431) no Hoare annotation was computed. [2023-11-29 05:52:07,758 INFO L899 garLoopResultBuilder]: For program point $Ultimate##36(lines 171 179) no Hoare annotation was computed. [2023-11-29 05:52:07,758 INFO L895 garLoopResultBuilder]: At program point L491-1(lines 491 528) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-29 05:52:07,758 INFO L899 garLoopResultBuilder]: For program point do_read_c_returnLabel#1(lines 195 253) no Hoare annotation was computed. [2023-11-29 05:52:07,758 INFO L899 garLoopResultBuilder]: For program point L508(line 508) no Hoare annotation was computed. [2023-11-29 05:52:07,758 INFO L895 garLoopResultBuilder]: At program point L244(line 244) the Hoare annotation is: false [2023-11-29 05:52:07,758 INFO L902 garLoopResultBuilder]: At program point L244-1(lines 210 247) the Hoare annotation is: true [2023-11-29 05:52:07,758 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 05:52:07,759 INFO L899 garLoopResultBuilder]: For program point L278-1(lines 269 286) no Hoare annotation was computed. [2023-11-29 05:52:07,759 INFO L899 garLoopResultBuilder]: For program point eval_returnLabel#1(lines 404 456) no Hoare annotation was computed. [2023-11-29 05:52:07,759 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 519) no Hoare annotation was computed. [2023-11-29 05:52:07,759 INFO L899 garLoopResultBuilder]: For program point L510-2(lines 510 519) no Hoare annotation was computed. [2023-11-29 05:52:07,759 INFO L895 garLoopResultBuilder]: At program point L411(line 411) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-29 05:52:07,759 INFO L895 garLoopResultBuilder]: At program point L164-1(lines 164 187) the Hoare annotation is: (let ((.cse0 (= ~c_dr_pc~0 1)) (.cse2 (= ~q_req_up~0 1)) (.cse1 (not (= ~p_dw_pc~0 1))) (.cse3 (= ~c_dr_pc~0 0))) (or (and .cse0 .cse1) (and .cse2 .cse0) (and .cse2 .cse3) (and .cse1 .cse3))) [2023-11-29 05:52:07,759 INFO L899 garLoopResultBuilder]: For program point L413(line 413) no Hoare annotation was computed. [2023-11-29 05:52:07,759 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 161) no Hoare annotation was computed. [2023-11-29 05:52:07,760 INFO L895 garLoopResultBuilder]: At program point L463(line 463) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-29 05:52:07,760 INFO L899 garLoopResultBuilder]: For program point L463-1(line 463) no Hoare annotation was computed. [2023-11-29 05:52:07,760 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 207) no Hoare annotation was computed. [2023-11-29 05:52:07,760 INFO L899 garLoopResultBuilder]: For program point L365(lines 365 369) no Hoare annotation was computed. [2023-11-29 05:52:07,760 INFO L899 garLoopResultBuilder]: For program point L365-2(lines 364 377) no Hoare annotation was computed. [2023-11-29 05:52:07,760 INFO L895 garLoopResultBuilder]: At program point L514(line 514) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-29 05:52:07,760 INFO L899 garLoopResultBuilder]: For program point L66-2(lines 65 89) no Hoare annotation was computed. [2023-11-29 05:52:07,761 INFO L899 garLoopResultBuilder]: For program point L87(lines 65 89) no Hoare annotation was computed. [2023-11-29 05:52:07,761 INFO L899 garLoopResultBuilder]: For program point is_do_write_p_triggeredEXIT(lines 62 90) no Hoare annotation was computed. [2023-11-29 05:52:07,761 INFO L899 garLoopResultBuilder]: For program point L77(lines 77 82) no Hoare annotation was computed. [2023-11-29 05:52:07,761 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 76 85) no Hoare annotation was computed. [2023-11-29 05:52:07,761 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 62 90) the Hoare annotation is: true [2023-11-29 05:52:07,761 INFO L899 garLoopResultBuilder]: For program point L67(lines 67 72) no Hoare annotation was computed. [2023-11-29 05:52:07,762 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 75) no Hoare annotation was computed. [2023-11-29 05:52:07,762 INFO L899 garLoopResultBuilder]: For program point errorEXIT(lines 15 22) no Hoare annotation was computed. [2023-11-29 05:52:07,762 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 15 22) the Hoare annotation is: true [2023-11-29 05:52:07,762 INFO L899 garLoopResultBuilder]: For program point errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-29 05:52:07,766 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:52:07,768 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 05:52:07,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 05:52:07 BoogieIcfgContainer [2023-11-29 05:52:07,781 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 05:52:07,781 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:52:07,782 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:52:07,782 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:52:07,782 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:51:49" (3/4) ... [2023-11-29 05:52:07,784 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 05:52:07,788 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure activate_threads [2023-11-29 05:52:07,788 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure exists_runnable_thread [2023-11-29 05:52:07,789 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure is_do_read_c_triggered [2023-11-29 05:52:07,789 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fire_delta_events [2023-11-29 05:52:07,789 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure update_channels [2023-11-29 05:52:07,789 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reset_delta_events [2023-11-29 05:52:07,789 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure is_do_write_p_triggered [2023-11-29 05:52:07,789 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure error [2023-11-29 05:52:07,798 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-29 05:52:07,799 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-29 05:52:07,800 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 05:52:07,801 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 05:52:07,941 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6feaf40-0e31-46c3-9501-c6d92fece8b9/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 05:52:07,941 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6feaf40-0e31-46c3-9501-c6d92fece8b9/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 05:52:07,941 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:52:07,942 INFO L158 Benchmark]: Toolchain (without parser) took 19514.96ms. Allocated memory was 148.9MB in the beginning and 545.3MB in the end (delta: 396.4MB). Free memory was 103.0MB in the beginning and 351.5MB in the end (delta: -248.5MB). Peak memory consumption was 149.7MB. Max. memory is 16.1GB. [2023-11-29 05:52:07,943 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 109.1MB. Free memory was 58.5MB in the beginning and 58.4MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:52:07,943 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.26ms. Allocated memory is still 148.9MB. Free memory was 103.0MB in the beginning and 89.1MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 05:52:07,944 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.53ms. Allocated memory is still 148.9MB. Free memory was 89.1MB in the beginning and 87.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:52:07,944 INFO L158 Benchmark]: Boogie Preprocessor took 56.72ms. Allocated memory is still 148.9MB. Free memory was 87.2MB in the beginning and 84.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 05:52:07,945 INFO L158 Benchmark]: RCFGBuilder took 510.87ms. Allocated memory is still 148.9MB. Free memory was 84.5MB in the beginning and 113.3MB in the end (delta: -28.7MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2023-11-29 05:52:07,945 INFO L158 Benchmark]: TraceAbstraction took 18384.28ms. Allocated memory was 148.9MB in the beginning and 545.3MB in the end (delta: 396.4MB). Free memory was 111.9MB in the beginning and 358.8MB in the end (delta: -246.9MB). Peak memory consumption was 267.6MB. Max. memory is 16.1GB. [2023-11-29 05:52:07,946 INFO L158 Benchmark]: Witness Printer took 160.00ms. Allocated memory is still 545.3MB. Free memory was 358.8MB in the beginning and 351.5MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 05:52:07,948 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 109.1MB. Free memory was 58.5MB in the beginning and 58.4MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.26ms. Allocated memory is still 148.9MB. Free memory was 103.0MB in the beginning and 89.1MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.53ms. Allocated memory is still 148.9MB. Free memory was 89.1MB in the beginning and 87.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.72ms. Allocated memory is still 148.9MB. Free memory was 87.2MB in the beginning and 84.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 510.87ms. Allocated memory is still 148.9MB. Free memory was 84.5MB in the beginning and 113.3MB in the end (delta: -28.7MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. * TraceAbstraction took 18384.28ms. Allocated memory was 148.9MB in the beginning and 545.3MB in the end (delta: 396.4MB). Free memory was 111.9MB in the beginning and 358.8MB in the end (delta: -246.9MB). Peak memory consumption was 267.6MB. Max. memory is 16.1GB. * Witness Printer took 160.00ms. Allocated memory is still 545.3MB. Free memory was 358.8MB in the beginning and 351.5MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.3s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3956 SdHoareTripleChecker+Valid, 5.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3873 mSDsluCounter, 4455 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3474 mSDsCounter, 977 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5250 IncrementalHoareTripleChecker+Invalid, 6227 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 977 mSolverCounterUnsat, 981 mSDtfsCounter, 5250 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 310 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1715occurred in iteration=8, InterpolantAutomatonStates: 131, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 9 MinimizatonAttempts, 768 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 1574 PreInvPairs, 2017 NumberOfFragments, 381 HoareAnnotationTreeSize, 1574 FomulaSimplifications, 299571 FormulaSimplificationTreeSizeReduction, 5.3s HoareSimplificationTime, 28 FomulaSimplificationsInter, 14918 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 515 NumberOfCodeBlocks, 515 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 506 ConstructedInterpolants, 0 QuantifiedInterpolants, 1074 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: ((c_dr_pc == 1) || (c_dr_pc == 0)) - InvariantResult [Line: 210]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: ((c_dr_pc == 1) || (c_dr_pc == 0)) - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: (((((c_dr_pc == 1) && !((p_dw_pc == 1))) || ((q_req_up == 1) && (c_dr_pc == 1))) || ((q_req_up == 1) && (c_dr_pc == 0))) || (!((p_dw_pc == 1)) && (c_dr_pc == 0))) RESULT: Ultimate proved your program to be correct! [2023-11-29 05:52:07,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6feaf40-0e31-46c3-9501-c6d92fece8b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE