./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 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da50b5f3-0d3a-4161-ae82-ed8577ffe752/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da50b5f3-0d3a-4161-ae82-ed8577ffe752/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da50b5f3-0d3a-4161-ae82-ed8577ffe752/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da50b5f3-0d3a-4161-ae82-ed8577ffe752/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da50b5f3-0d3a-4161-ae82-ed8577ffe752/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da50b5f3-0d3a-4161-ae82-ed8577ffe752/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 677126e8d6773c92cc337bfe0a3ec155f49f784424155f33a8c9c24ee0a42113 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:41:54,035 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:41:54,158 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da50b5f3-0d3a-4161-ae82-ed8577ffe752/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-23 22:41:54,168 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:41:54,169 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:41:54,216 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:41:54,217 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:41:54,218 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:41:54,220 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:41:54,229 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:41:54,230 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:41:54,230 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:41:54,231 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:41:54,232 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:41:54,233 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:41:54,234 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:41:54,234 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:41:54,235 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:41:54,235 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:41:54,236 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:41:54,237 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:41:54,238 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:41:54,238 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:41:54,239 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:41:54,240 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:41:54,240 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:41:54,241 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:41:54,242 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:41:54,243 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:41:54,243 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:41:54,245 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:41:54,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:41:54,246 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:41:54,246 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:41:54,247 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:41:54,247 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:41:54,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:41:54,248 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:41:54,248 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:41:54,248 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:41:54,249 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:41:54,249 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:41:54,250 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_da50b5f3-0d3a-4161-ae82-ed8577ffe752/bin/uautomizer-verify-zZY32mL2XJ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da50b5f3-0d3a-4161-ae82-ed8577ffe752/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 677126e8d6773c92cc337bfe0a3ec155f49f784424155f33a8c9c24ee0a42113 [2023-11-23 22:41:54,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:41:54,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:41:54,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:41:54,645 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:41:54,646 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:41:54,648 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da50b5f3-0d3a-4161-ae82-ed8577ffe752/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c [2023-11-23 22:41:58,273 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:41:58,568 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:41:58,569 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da50b5f3-0d3a-4161-ae82-ed8577ffe752/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c [2023-11-23 22:41:58,584 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da50b5f3-0d3a-4161-ae82-ed8577ffe752/bin/uautomizer-verify-zZY32mL2XJ/data/eb4ffafb3/72e015f7d3d44e4eb141d27d129348b0/FLAG928de0aed [2023-11-23 22:41:58,603 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da50b5f3-0d3a-4161-ae82-ed8577ffe752/bin/uautomizer-verify-zZY32mL2XJ/data/eb4ffafb3/72e015f7d3d44e4eb141d27d129348b0 [2023-11-23 22:41:58,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:41:58,609 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:41:58,611 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:41:58,611 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:41:58,619 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:41:58,620 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:41:58" (1/1) ... [2023-11-23 22:41:58,621 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4beed5f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:58, skipping insertion in model container [2023-11-23 22:41:58,621 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:41:58" (1/1) ... [2023-11-23 22:41:58,721 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:41:58,932 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_da50b5f3-0d3a-4161-ae82-ed8577ffe752/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c[640,653] [2023-11-23 22:41:59,010 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:41:59,025 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:41:59,038 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_da50b5f3-0d3a-4161-ae82-ed8577ffe752/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c[640,653] [2023-11-23 22:41:59,074 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:41:59,097 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:41:59,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:59 WrapperNode [2023-11-23 22:41:59,098 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:41:59,100 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:41:59,100 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:41:59,100 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:41:59,110 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:59" (1/1) ... [2023-11-23 22:41:59,122 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:59" (1/1) ... [2023-11-23 22:41:59,172 INFO L138 Inliner]: procedures = 31, calls = 35, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 227 [2023-11-23 22:41:59,173 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:41:59,174 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:41:59,174 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:41:59,174 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:41:59,189 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:59" (1/1) ... [2023-11-23 22:41:59,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:59" (1/1) ... [2023-11-23 22:41:59,193 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:59" (1/1) ... [2023-11-23 22:41:59,209 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 22:41:59,209 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:59" (1/1) ... [2023-11-23 22:41:59,210 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:59" (1/1) ... [2023-11-23 22:41:59,217 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:59" (1/1) ... [2023-11-23 22:41:59,226 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:59" (1/1) ... [2023-11-23 22:41:59,228 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:59" (1/1) ... [2023-11-23 22:41:59,231 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:59" (1/1) ... [2023-11-23 22:41:59,235 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:41:59,236 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:41:59,237 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:41:59,237 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:41:59,238 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:59" (1/1) ... [2023-11-23 22:41:59,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:41:59,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da50b5f3-0d3a-4161-ae82-ed8577ffe752/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:59,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da50b5f3-0d3a-4161-ae82-ed8577ffe752/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:59,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da50b5f3-0d3a-4161-ae82-ed8577ffe752/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:41:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:41:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-11-23 22:41:59,351 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-11-23 22:41:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-11-23 22:41:59,352 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-11-23 22:41:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-11-23 22:41:59,352 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-11-23 22:41:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-11-23 22:41:59,352 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-11-23 22:41:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-11-23 22:41:59,353 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-11-23 22:41:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-11-23 22:41:59,353 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-11-23 22:41:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:41:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-11-23 22:41:59,354 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-11-23 22:41:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:41:59,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:41:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-11-23 22:41:59,355 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-11-23 22:41:59,458 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:41:59,461 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:41:59,905 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##54: assume !(1 == ~q_free~0); [2023-11-23 22:41:59,905 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; [2023-11-23 22:41:59,937 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:42:00,014 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:42:00,014 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-23 22:42:00,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:42:00 BoogieIcfgContainer [2023-11-23 22:42:00,015 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:42:00,034 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:42:00,035 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:42:00,039 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:42:00,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:41:58" (1/3) ... [2023-11-23 22:42:00,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690c942b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:42:00, skipping insertion in model container [2023-11-23 22:42:00,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:59" (2/3) ... [2023-11-23 22:42:00,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690c942b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:42:00, skipping insertion in model container [2023-11-23 22:42:00,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:42:00" (3/3) ... [2023-11-23 22:42:00,043 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil.c [2023-11-23 22:42:00,063 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:42:00,063 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 22:42:00,126 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:42:00,135 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;@3562bfbb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:42:00,135 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 22:42:00,141 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) [2023-11-23 22:42:00,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-23 22:42:00,154 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:42:00,155 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] [2023-11-23 22:42:00,155 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:42:00,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:42:00,162 INFO L85 PathProgramCache]: Analyzing trace with hash -999542766, now seen corresponding path program 1 times [2023-11-23 22:42:00,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:42:00,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519747383] [2023-11-23 22:42:00,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:42:00,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:42:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:00,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:00,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:00,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:42:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:00,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 22:42:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:00,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:00,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:42:00,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:00,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 22:42:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:01,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-23 22:42:01,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:01,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:42:01,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:42:01,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519747383] [2023-11-23 22:42:01,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519747383] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:42:01,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:42:01,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 22:42:01,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269475406] [2023-11-23 22:42:01,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:42:01,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 22:42:01,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:42:01,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 22:42:01,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:42:01,096 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) [2023-11-23 22:42:02,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:42:02,297 INFO L93 Difference]: Finished difference Result 340 states and 532 transitions. [2023-11-23 22:42:02,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 22:42:02,300 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 [2023-11-23 22:42:02,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:42:02,316 INFO L225 Difference]: With dead ends: 340 [2023-11-23 22:42:02,317 INFO L226 Difference]: Without dead ends: 239 [2023-11-23 22:42:02,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2023-11-23 22:42:02,326 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 451 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 22:42:02,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 370 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 22:42:02,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2023-11-23 22:42:02,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 202. [2023-11-23 22:42:02,421 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) [2023-11-23 22:42:02,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 293 transitions. [2023-11-23 22:42:02,427 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 293 transitions. Word has length 56 [2023-11-23 22:42:02,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:42:02,428 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 293 transitions. [2023-11-23 22:42:02,429 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) [2023-11-23 22:42:02,429 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 293 transitions. [2023-11-23 22:42:02,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-23 22:42:02,437 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:42:02,438 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] [2023-11-23 22:42:02,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:42:02,439 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:42:02,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:42:02,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1351431762, now seen corresponding path program 1 times [2023-11-23 22:42:02,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:42:02,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307297603] [2023-11-23 22:42:02,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:42:02,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:42:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:02,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:02,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:42:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:02,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 22:42:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:02,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:02,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:42:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:02,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 22:42:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:02,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-23 22:42:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:02,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:42:02,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:42:02,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307297603] [2023-11-23 22:42:02,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307297603] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:42:02,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:42:02,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 22:42:02,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006030719] [2023-11-23 22:42:02,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:42:02,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 22:42:02,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:42:02,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 22:42:02,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:42:02,822 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) [2023-11-23 22:42:04,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:42:04,001 INFO L93 Difference]: Finished difference Result 563 states and 823 transitions. [2023-11-23 22:42:04,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-23 22:42:04,002 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 [2023-11-23 22:42:04,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:42:04,009 INFO L225 Difference]: With dead ends: 563 [2023-11-23 22:42:04,009 INFO L226 Difference]: Without dead ends: 375 [2023-11-23 22:42:04,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2023-11-23 22:42:04,014 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 429 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 22:42:04,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 615 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 22:42:04,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2023-11-23 22:42:04,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 303. [2023-11-23 22:42:04,087 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) [2023-11-23 22:42:04,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 442 transitions. [2023-11-23 22:42:04,092 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 442 transitions. Word has length 56 [2023-11-23 22:42:04,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:42:04,092 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 442 transitions. [2023-11-23 22:42:04,093 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) [2023-11-23 22:42:04,093 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 442 transitions. [2023-11-23 22:42:04,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-23 22:42:04,098 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:42:04,098 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] [2023-11-23 22:42:04,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:42:04,099 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:42:04,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:42:04,100 INFO L85 PathProgramCache]: Analyzing trace with hash -2050049196, now seen corresponding path program 1 times [2023-11-23 22:42:04,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:42:04,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530125492] [2023-11-23 22:42:04,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:42:04,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:42:04,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:04,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:04,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:42:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:04,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 22:42:04,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:04,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:04,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:04,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:42:04,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:04,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 22:42:04,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:04,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-23 22:42:04,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:04,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:42:04,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:42:04,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530125492] [2023-11-23 22:42:04,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530125492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:42:04,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:42:04,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 22:42:04,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303969720] [2023-11-23 22:42:04,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:42:04,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 22:42:04,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:42:04,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 22:42:04,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-23 22:42:04,313 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) [2023-11-23 22:42:05,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:42:05,621 INFO L93 Difference]: Finished difference Result 1171 states and 1716 transitions. [2023-11-23 22:42:05,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-23 22:42:05,622 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 [2023-11-23 22:42:05,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:42:05,634 INFO L225 Difference]: With dead ends: 1171 [2023-11-23 22:42:05,635 INFO L226 Difference]: Without dead ends: 870 [2023-11-23 22:42:05,640 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 [2023-11-23 22:42:05,646 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 [2023-11-23 22:42:05,648 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] [2023-11-23 22:42:05,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2023-11-23 22:42:05,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 774. [2023-11-23 22:42:05,793 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) [2023-11-23 22:42:05,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1077 transitions. [2023-11-23 22:42:05,802 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1077 transitions. Word has length 56 [2023-11-23 22:42:05,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:42:05,802 INFO L495 AbstractCegarLoop]: Abstraction has 774 states and 1077 transitions. [2023-11-23 22:42:05,803 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) [2023-11-23 22:42:05,803 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1077 transitions. [2023-11-23 22:42:05,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-23 22:42:05,809 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:42:05,810 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] [2023-11-23 22:42:05,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:42:05,812 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:42:05,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:42:05,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1834223676, now seen corresponding path program 1 times [2023-11-23 22:42:05,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:42:05,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004889719] [2023-11-23 22:42:05,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:42:05,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:42:05,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:05,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:05,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:42:05,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:05,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 22:42:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:06,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:06,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:06,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 22:42:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:06,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 22:42:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:06,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 22:42:06,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:06,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:42:06,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:42:06,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004889719] [2023-11-23 22:42:06,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004889719] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:42:06,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:42:06,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 22:42:06,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063458694] [2023-11-23 22:42:06,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:42:06,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 22:42:06,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:42:06,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 22:42:06,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-23 22:42:06,062 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) [2023-11-23 22:42:06,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:42:06,667 INFO L93 Difference]: Finished difference Result 1622 states and 2270 transitions. [2023-11-23 22:42:06,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 22:42:06,698 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 [2023-11-23 22:42:06,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:42:06,704 INFO L225 Difference]: With dead ends: 1622 [2023-11-23 22:42:06,705 INFO L226 Difference]: Without dead ends: 856 [2023-11-23 22:42:06,707 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 [2023-11-23 22:42:06,711 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 126 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 22:42:06,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 516 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 22:42:06,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2023-11-23 22:42:06,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 790. [2023-11-23 22:42:06,799 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) [2023-11-23 22:42:06,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1089 transitions. [2023-11-23 22:42:06,808 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1089 transitions. Word has length 57 [2023-11-23 22:42:06,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:42:06,810 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 1089 transitions. [2023-11-23 22:42:06,810 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) [2023-11-23 22:42:06,811 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1089 transitions. [2023-11-23 22:42:06,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-23 22:42:06,817 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:42:06,817 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] [2023-11-23 22:42:06,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 22:42:06,818 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:42:06,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:42:06,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1906610234, now seen corresponding path program 1 times [2023-11-23 22:42:06,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:42:06,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409445625] [2023-11-23 22:42:06,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:42:06,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:42:06,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:06,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:06,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:42:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:06,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 22:42:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:06,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:06,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 22:42:06,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:07,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 22:42:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:07,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 22:42:07,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:07,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:42:07,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:42:07,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409445625] [2023-11-23 22:42:07,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409445625] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:42:07,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:42:07,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 22:42:07,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173414313] [2023-11-23 22:42:07,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:42:07,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 22:42:07,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:42:07,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 22:42:07,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-23 22:42:07,023 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) [2023-11-23 22:42:08,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:42:08,504 INFO L93 Difference]: Finished difference Result 2983 states and 4212 transitions. [2023-11-23 22:42:08,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-23 22:42:08,505 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 [2023-11-23 22:42:08,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:42:08,515 INFO L225 Difference]: With dead ends: 2983 [2023-11-23 22:42:08,515 INFO L226 Difference]: Without dead ends: 1158 [2023-11-23 22:42:08,521 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 [2023-11-23 22:42:08,523 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 767 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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 [2023-11-23 22:42:08,523 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] [2023-11-23 22:42:08,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2023-11-23 22:42:08,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1040. [2023-11-23 22:42:08,644 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) [2023-11-23 22:42:08,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1382 transitions. [2023-11-23 22:42:08,655 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1382 transitions. Word has length 57 [2023-11-23 22:42:08,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:42:08,656 INFO L495 AbstractCegarLoop]: Abstraction has 1040 states and 1382 transitions. [2023-11-23 22:42:08,656 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) [2023-11-23 22:42:08,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1382 transitions. [2023-11-23 22:42:08,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-23 22:42:08,658 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:42:08,658 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] [2023-11-23 22:42:08,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 22:42:08,659 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:42:08,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:42:08,660 INFO L85 PathProgramCache]: Analyzing trace with hash 2045842353, now seen corresponding path program 1 times [2023-11-23 22:42:08,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:42:08,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4396241] [2023-11-23 22:42:08,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:42:08,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:42:08,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:08,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:08,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:08,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:42:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:08,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 22:42:08,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:08,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:08,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 22:42:08,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:08,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 22:42:08,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:08,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 22:42:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:08,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:42:08,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:42:08,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4396241] [2023-11-23 22:42:08,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4396241] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:42:08,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:42:08,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 22:42:08,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929043642] [2023-11-23 22:42:08,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:42:08,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 22:42:08,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:42:08,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 22:42:08,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-23 22:42:08,897 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) [2023-11-23 22:42:09,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:42:09,594 INFO L93 Difference]: Finished difference Result 2220 states and 2984 transitions. [2023-11-23 22:42:09,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 22:42:09,595 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 [2023-11-23 22:42:09,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:42:09,603 INFO L225 Difference]: With dead ends: 2220 [2023-11-23 22:42:09,603 INFO L226 Difference]: Without dead ends: 1188 [2023-11-23 22:42:09,606 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 [2023-11-23 22:42:09,607 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 121 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 22:42:09,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 482 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 22:42:09,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2023-11-23 22:42:09,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 1088. [2023-11-23 22:42:09,703 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) [2023-11-23 22:42:09,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1430 transitions. [2023-11-23 22:42:09,712 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1430 transitions. Word has length 58 [2023-11-23 22:42:09,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:42:09,713 INFO L495 AbstractCegarLoop]: Abstraction has 1088 states and 1430 transitions. [2023-11-23 22:42:09,714 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) [2023-11-23 22:42:09,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1430 transitions. [2023-11-23 22:42:09,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-23 22:42:09,715 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:42:09,715 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] [2023-11-23 22:42:09,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 22:42:09,716 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:42:09,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:42:09,717 INFO L85 PathProgramCache]: Analyzing trace with hash -2108576333, now seen corresponding path program 1 times [2023-11-23 22:42:09,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:42:09,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098743902] [2023-11-23 22:42:09,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:42:09,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:42:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:09,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:09,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:42:09,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:09,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 22:42:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:09,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:09,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:09,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 22:42:09,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:09,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 22:42:09,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:10,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 22:42:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:10,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:42:10,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:42:10,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098743902] [2023-11-23 22:42:10,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098743902] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:42:10,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:42:10,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 22:42:10,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039451542] [2023-11-23 22:42:10,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:42:10,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 22:42:10,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:42:10,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 22:42:10,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:42:10,012 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) [2023-11-23 22:42:10,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:42:10,955 INFO L93 Difference]: Finished difference Result 2133 states and 2816 transitions. [2023-11-23 22:42:10,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 22:42:10,956 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 [2023-11-23 22:42:10,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:42:10,965 INFO L225 Difference]: With dead ends: 2133 [2023-11-23 22:42:10,966 INFO L226 Difference]: Without dead ends: 1053 [2023-11-23 22:42:10,969 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 [2023-11-23 22:42:10,972 INFO L413 NwaCegarLoop]: 95 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, 411 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 [2023-11-23 22:42:10,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 411 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 22:42:10,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2023-11-23 22:42:11,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 882. [2023-11-23 22:42:11,056 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) [2023-11-23 22:42:11,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1152 transitions. [2023-11-23 22:42:11,067 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1152 transitions. Word has length 58 [2023-11-23 22:42:11,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:42:11,070 INFO L495 AbstractCegarLoop]: Abstraction has 882 states and 1152 transitions. [2023-11-23 22:42:11,070 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) [2023-11-23 22:42:11,070 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1152 transitions. [2023-11-23 22:42:11,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-23 22:42:11,071 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:42:11,071 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] [2023-11-23 22:42:11,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 22:42:11,072 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:42:11,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:42:11,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1368742513, now seen corresponding path program 1 times [2023-11-23 22:42:11,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:42:11,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687151022] [2023-11-23 22:42:11,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:42:11,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:42:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:11,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:11,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:42:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:11,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 22:42:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:11,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:11,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:11,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 22:42:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:11,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 22:42:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:11,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 22:42:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:11,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:42:11,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:42:11,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687151022] [2023-11-23 22:42:11,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687151022] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:42:11,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:42:11,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 22:42:11,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800145330] [2023-11-23 22:42:11,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:42:11,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 22:42:11,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:42:11,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 22:42:11,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:42:11,230 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) [2023-11-23 22:42:11,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:42:11,921 INFO L93 Difference]: Finished difference Result 2696 states and 3572 transitions. [2023-11-23 22:42:11,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 22:42:11,922 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 [2023-11-23 22:42:11,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:42:11,937 INFO L225 Difference]: With dead ends: 2696 [2023-11-23 22:42:11,937 INFO L226 Difference]: Without dead ends: 1823 [2023-11-23 22:42:11,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2023-11-23 22:42:11,943 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 [2023-11-23 22:42:11,943 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] [2023-11-23 22:42:11,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1823 states. [2023-11-23 22:42:12,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1823 to 1715. [2023-11-23 22:42:12,149 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) [2023-11-23 22:42:12,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2243 transitions. [2023-11-23 22:42:12,164 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2243 transitions. Word has length 58 [2023-11-23 22:42:12,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:42:12,165 INFO L495 AbstractCegarLoop]: Abstraction has 1715 states and 2243 transitions. [2023-11-23 22:42:12,165 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) [2023-11-23 22:42:12,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2243 transitions. [2023-11-23 22:42:12,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-23 22:42:12,166 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:42:12,167 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] [2023-11-23 22:42:12,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 22:42:12,167 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:42:12,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:42:12,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1945360166, now seen corresponding path program 1 times [2023-11-23 22:42:12,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:42:12,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951659928] [2023-11-23 22:42:12,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:42:12,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:42:12,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:12,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:12,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:42:12,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:12,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 22:42:12,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:12,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:12,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 22:42:12,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:12,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 22:42:12,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:12,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 22:42:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:12,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:42:12,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:42:12,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951659928] [2023-11-23 22:42:12,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951659928] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:42:12,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:42:12,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 22:42:12,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874118570] [2023-11-23 22:42:12,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:42:12,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:42:12,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:42:12,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:42:12,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:42:12,264 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) [2023-11-23 22:42:12,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:42:12,672 INFO L93 Difference]: Finished difference Result 3394 states and 4520 transitions. [2023-11-23 22:42:12,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:42:12,673 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 [2023-11-23 22:42:12,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:42:12,675 INFO L225 Difference]: With dead ends: 3394 [2023-11-23 22:42:12,675 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 22:42:12,684 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 [2023-11-23 22:42:12,685 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 [2023-11-23 22:42:12,686 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] [2023-11-23 22:42:12,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 22:42:12,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 22:42:12,687 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) [2023-11-23 22:42:12,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 22:42:12,688 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2023-11-23 22:42:12,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:42:12,688 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:42:12,689 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) [2023-11-23 22:42:12,689 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 22:42:12,689 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 22:42:12,692 INFO L805 garLoopResultBuilder]: Registering result SAFE for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 22:42:12,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 22:42:12,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 22:42:21,408 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))))) [2023-11-23 22:42:21,408 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))) [2023-11-23 22:42:21,409 INFO L899 garLoopResultBuilder]: For program point L385-1(line 385) no Hoare annotation was computed. [2023-11-23 22:42:21,409 INFO L899 garLoopResultBuilder]: For program point L395(lines 395 399) no Hoare annotation was computed. [2023-11-23 22:42:21,409 INFO L899 garLoopResultBuilder]: For program point activate_threadsEXIT(lines 379 403) no Hoare annotation was computed. [2023-11-23 22:42:21,409 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))))) [2023-11-23 22:42:21,409 INFO L899 garLoopResultBuilder]: For program point L393(line 393) no Hoare annotation was computed. [2023-11-23 22:42:21,409 INFO L899 garLoopResultBuilder]: For program point L395-2(lines 379 403) no Hoare annotation was computed. [2023-11-23 22:42:21,410 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 391) no Hoare annotation was computed. [2023-11-23 22:42:21,410 INFO L899 garLoopResultBuilder]: For program point exists_runnable_threadEXIT(lines 287 306) no Hoare annotation was computed. [2023-11-23 22:42:21,410 INFO L899 garLoopResultBuilder]: For program point L303(lines 290 305) no Hoare annotation was computed. [2023-11-23 22:42:21,410 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 287 306) the Hoare annotation is: true [2023-11-23 22:42:21,410 INFO L899 garLoopResultBuilder]: For program point L295(lines 295 300) no Hoare annotation was computed. [2023-11-23 22:42:21,410 INFO L899 garLoopResultBuilder]: For program point L291(lines 291 301) no Hoare annotation was computed. [2023-11-23 22:42:21,411 INFO L899 garLoopResultBuilder]: For program point L96(lines 96 101) no Hoare annotation was computed. [2023-11-23 22:42:21,411 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 104) no Hoare annotation was computed. [2023-11-23 22:42:21,411 INFO L899 garLoopResultBuilder]: For program point L95-2(lines 94 118) no Hoare annotation was computed. [2023-11-23 22:42:21,411 INFO L899 garLoopResultBuilder]: For program point L116(lines 94 118) no Hoare annotation was computed. [2023-11-23 22:42:21,411 INFO L899 garLoopResultBuilder]: For program point L106(lines 106 111) no Hoare annotation was computed. [2023-11-23 22:42:21,411 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 91 119) the Hoare annotation is: true [2023-11-23 22:42:21,412 INFO L899 garLoopResultBuilder]: For program point L105-1(lines 105 114) no Hoare annotation was computed. [2023-11-23 22:42:21,412 INFO L899 garLoopResultBuilder]: For program point is_do_read_c_triggeredEXIT(lines 91 119) no Hoare annotation was computed. [2023-11-23 22:42:21,412 INFO L899 garLoopResultBuilder]: For program point L316-1(lines 307 324) no Hoare annotation was computed. [2023-11-23 22:42:21,412 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))) [2023-11-23 22:42:21,412 INFO L899 garLoopResultBuilder]: For program point L311-1(lines 310 323) no Hoare annotation was computed. [2023-11-23 22:42:21,412 INFO L899 garLoopResultBuilder]: For program point fire_delta_eventsEXIT(lines 307 324) no Hoare annotation was computed. [2023-11-23 22:42:21,413 INFO L899 garLoopResultBuilder]: For program point L258-1(lines 254 268) no Hoare annotation was computed. [2023-11-23 22:42:21,413 INFO L899 garLoopResultBuilder]: For program point update_channelsEXIT(lines 254 268) no Hoare annotation was computed. [2023-11-23 22:42:21,413 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))))) [2023-11-23 22:42:21,413 INFO L899 garLoopResultBuilder]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2023-11-23 22:42:21,413 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 40) no Hoare annotation was computed. [2023-11-23 22:42:21,414 INFO L899 garLoopResultBuilder]: For program point L36-2(lines 35 50) no Hoare annotation was computed. [2023-11-23 22:42:21,414 INFO L899 garLoopResultBuilder]: For program point reset_delta_eventsEXIT(lines 325 342) no Hoare annotation was computed. [2023-11-23 22:42:21,414 INFO L899 garLoopResultBuilder]: For program point L334-1(lines 325 342) no Hoare annotation was computed. [2023-11-23 22:42:21,414 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))) [2023-11-23 22:42:21,414 INFO L899 garLoopResultBuilder]: For program point L329-1(lines 328 341) no Hoare annotation was computed. [2023-11-23 22:42:21,414 INFO L899 garLoopResultBuilder]: For program point L514-1(line 514) no Hoare annotation was computed. [2023-11-23 22:42:21,415 INFO L899 garLoopResultBuilder]: For program point L415(lines 415 419) no Hoare annotation was computed. [2023-11-23 22:42:21,415 INFO L899 garLoopResultBuilder]: For program point L415-1(lines 410 450) no Hoare annotation was computed. [2023-11-23 22:42:21,415 INFO L899 garLoopResultBuilder]: For program point L349(lines 349 356) no Hoare annotation was computed. [2023-11-23 22:42:21,415 INFO L899 garLoopResultBuilder]: For program point L349-2(lines 345 360) no Hoare annotation was computed. [2023-11-23 22:42:21,415 INFO L899 garLoopResultBuilder]: For program point L465(lines 465 470) no Hoare annotation was computed. [2023-11-23 22:42:21,415 INFO L899 garLoopResultBuilder]: For program point L234(lines 234 246) no Hoare annotation was computed. [2023-11-23 22:42:21,416 INFO L899 garLoopResultBuilder]: For program point L152(lines 152 160) no Hoare annotation was computed. [2023-11-23 22:42:21,416 INFO L899 garLoopResultBuilder]: For program point do_write_p_returnLabel#1(lines 145 193) no Hoare annotation was computed. [2023-11-23 22:42:21,416 INFO L899 garLoopResultBuilder]: For program point start_simulation_returnLabel#1(lines 476 534) no Hoare annotation was computed. [2023-11-23 22:42:21,416 INFO L895 garLoopResultBuilder]: At program point L499(line 499) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-23 22:42:21,416 INFO L899 garLoopResultBuilder]: For program point L499-1(line 499) no Hoare annotation was computed. [2023-11-23 22:42:21,416 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 241) no Hoare annotation was computed. [2023-11-23 22:42:21,417 INFO L899 garLoopResultBuilder]: For program point L202(lines 202 206) no Hoare annotation was computed. [2023-11-23 22:42:21,417 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)) [2023-11-23 22:42:21,417 INFO L899 garLoopResultBuilder]: For program point L484-1(line 484) no Hoare annotation was computed. [2023-11-23 22:42:21,417 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)) [2023-11-23 22:42:21,417 INFO L899 garLoopResultBuilder]: For program point L171(lines 171 179) no Hoare annotation was computed. [2023-11-23 22:42:21,417 INFO L899 garLoopResultBuilder]: For program point L155(lines 155 159) no Hoare annotation was computed. [2023-11-23 22:42:21,418 INFO L899 garLoopResultBuilder]: For program point L370-1(lines 361 378) no Hoare annotation was computed. [2023-11-23 22:42:21,418 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)) [2023-11-23 22:42:21,418 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)) [2023-11-23 22:42:21,418 INFO L899 garLoopResultBuilder]: For program point L420(lines 410 450) no Hoare annotation was computed. [2023-11-23 22:42:21,418 INFO L895 garLoopResultBuilder]: At program point L503(line 503) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-23 22:42:21,419 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)) [2023-11-23 22:42:21,419 INFO L895 garLoopResultBuilder]: At program point L239(line 239) the Hoare annotation is: false [2023-11-23 22:42:21,419 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)) [2023-11-23 22:42:21,419 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 22:42:21,419 INFO L895 garLoopResultBuilder]: At program point L504(line 504) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-23 22:42:21,419 INFO L899 garLoopResultBuilder]: For program point L273(lines 273 277) no Hoare annotation was computed. [2023-11-23 22:42:21,420 INFO L899 garLoopResultBuilder]: For program point L273-2(lines 272 285) no Hoare annotation was computed. [2023-11-23 22:42:21,420 INFO L895 garLoopResultBuilder]: At program point L505(line 505) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-23 22:42:21,420 INFO L899 garLoopResultBuilder]: For program point L472(lines 461 474) no Hoare annotation was computed. [2023-11-23 22:42:21,420 INFO L899 garLoopResultBuilder]: For program point L439(lines 439 446) no Hoare annotation was computed. [2023-11-23 22:42:21,420 INFO L899 garLoopResultBuilder]: For program point L523(lines 523 527) no Hoare annotation was computed. [2023-11-23 22:42:21,420 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 431) no Hoare annotation was computed. [2023-11-23 22:42:21,420 INFO L899 garLoopResultBuilder]: For program point $Ultimate##36(lines 171 179) no Hoare annotation was computed. [2023-11-23 22:42:21,421 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)) [2023-11-23 22:42:21,421 INFO L899 garLoopResultBuilder]: For program point do_read_c_returnLabel#1(lines 195 253) no Hoare annotation was computed. [2023-11-23 22:42:21,421 INFO L899 garLoopResultBuilder]: For program point L508(line 508) no Hoare annotation was computed. [2023-11-23 22:42:21,421 INFO L895 garLoopResultBuilder]: At program point L244(line 244) the Hoare annotation is: false [2023-11-23 22:42:21,421 INFO L902 garLoopResultBuilder]: At program point L244-1(lines 210 247) the Hoare annotation is: true [2023-11-23 22:42:21,421 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 22:42:21,422 INFO L899 garLoopResultBuilder]: For program point L278-1(lines 269 286) no Hoare annotation was computed. [2023-11-23 22:42:21,422 INFO L899 garLoopResultBuilder]: For program point eval_returnLabel#1(lines 404 456) no Hoare annotation was computed. [2023-11-23 22:42:21,422 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 519) no Hoare annotation was computed. [2023-11-23 22:42:21,422 INFO L899 garLoopResultBuilder]: For program point L510-2(lines 510 519) no Hoare annotation was computed. [2023-11-23 22:42:21,422 INFO L895 garLoopResultBuilder]: At program point L411(line 411) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-23 22:42:21,422 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))) [2023-11-23 22:42:21,423 INFO L899 garLoopResultBuilder]: For program point L413(line 413) no Hoare annotation was computed. [2023-11-23 22:42:21,423 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 161) no Hoare annotation was computed. [2023-11-23 22:42:21,423 INFO L895 garLoopResultBuilder]: At program point L463(line 463) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-23 22:42:21,423 INFO L899 garLoopResultBuilder]: For program point L463-1(line 463) no Hoare annotation was computed. [2023-11-23 22:42:21,423 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 207) no Hoare annotation was computed. [2023-11-23 22:42:21,423 INFO L899 garLoopResultBuilder]: For program point L365(lines 365 369) no Hoare annotation was computed. [2023-11-23 22:42:21,424 INFO L899 garLoopResultBuilder]: For program point L365-2(lines 364 377) no Hoare annotation was computed. [2023-11-23 22:42:21,424 INFO L895 garLoopResultBuilder]: At program point L514(line 514) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-23 22:42:21,424 INFO L899 garLoopResultBuilder]: For program point L66-2(lines 65 89) no Hoare annotation was computed. [2023-11-23 22:42:21,424 INFO L899 garLoopResultBuilder]: For program point L87(lines 65 89) no Hoare annotation was computed. [2023-11-23 22:42:21,424 INFO L899 garLoopResultBuilder]: For program point is_do_write_p_triggeredEXIT(lines 62 90) no Hoare annotation was computed. [2023-11-23 22:42:21,424 INFO L899 garLoopResultBuilder]: For program point L77(lines 77 82) no Hoare annotation was computed. [2023-11-23 22:42:21,425 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 76 85) no Hoare annotation was computed. [2023-11-23 22:42:21,425 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 62 90) the Hoare annotation is: true [2023-11-23 22:42:21,425 INFO L899 garLoopResultBuilder]: For program point L67(lines 67 72) no Hoare annotation was computed. [2023-11-23 22:42:21,425 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 75) no Hoare annotation was computed. [2023-11-23 22:42:21,425 INFO L899 garLoopResultBuilder]: For program point errorEXIT(lines 15 22) no Hoare annotation was computed. [2023-11-23 22:42:21,425 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 15 22) the Hoare annotation is: true [2023-11-23 22:42:21,426 INFO L899 garLoopResultBuilder]: For program point errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-23 22:42:21,429 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:42:21,432 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 22:42:21,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:42:21 BoogieIcfgContainer [2023-11-23 22:42:21,447 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 22:42:21,448 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:42:21,448 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:42:21,449 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:42:21,449 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:42:00" (3/4) ... [2023-11-23 22:42:21,453 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 22:42:21,458 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure activate_threads [2023-11-23 22:42:21,458 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure exists_runnable_thread [2023-11-23 22:42:21,459 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure is_do_read_c_triggered [2023-11-23 22:42:21,459 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fire_delta_events [2023-11-23 22:42:21,459 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure update_channels [2023-11-23 22:42:21,459 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reset_delta_events [2023-11-23 22:42:21,460 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure is_do_write_p_triggered [2023-11-23 22:42:21,460 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure error [2023-11-23 22:42:21,471 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-23 22:42:21,472 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-23 22:42:21,473 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 22:42:21,473 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 22:42:21,626 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da50b5f3-0d3a-4161-ae82-ed8577ffe752/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 22:42:21,627 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da50b5f3-0d3a-4161-ae82-ed8577ffe752/bin/uautomizer-verify-zZY32mL2XJ/witness.yml [2023-11-23 22:42:21,627 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:42:21,627 INFO L158 Benchmark]: Toolchain (without parser) took 23018.82ms. Allocated memory was 186.6MB in the beginning and 469.8MB in the end (delta: 283.1MB). Free memory was 140.1MB in the beginning and 433.7MB in the end (delta: -293.7MB). Peak memory consumption was 269.8MB. Max. memory is 16.1GB. [2023-11-23 22:42:21,628 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 140.5MB. Free memory was 80.8MB in the beginning and 80.6MB in the end (delta: 158.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:42:21,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.99ms. Allocated memory is still 186.6MB. Free memory was 139.4MB in the beginning and 126.1MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 22:42:21,629 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.94ms. Allocated memory is still 186.6MB. Free memory was 126.1MB in the beginning and 124.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:42:21,629 INFO L158 Benchmark]: Boogie Preprocessor took 61.81ms. Allocated memory is still 186.6MB. Free memory was 124.0MB in the beginning and 121.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:42:21,630 INFO L158 Benchmark]: RCFGBuilder took 778.51ms. Allocated memory is still 186.6MB. Free memory was 121.2MB in the beginning and 98.9MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-23 22:42:21,631 INFO L158 Benchmark]: TraceAbstraction took 21413.14ms. Allocated memory was 186.6MB in the beginning and 469.8MB in the end (delta: 283.1MB). Free memory was 98.1MB in the beginning and 164.2MB in the end (delta: -66.0MB). Peak memory consumption was 237.4MB. Max. memory is 16.1GB. [2023-11-23 22:42:21,632 INFO L158 Benchmark]: Witness Printer took 178.57ms. Allocated memory is still 469.8MB. Free memory was 164.2MB in the beginning and 433.7MB in the end (delta: -269.6MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2023-11-23 22:42:21,634 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 140.5MB. Free memory was 80.8MB in the beginning and 80.6MB in the end (delta: 158.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 487.99ms. Allocated memory is still 186.6MB. Free memory was 139.4MB in the beginning and 126.1MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.94ms. Allocated memory is still 186.6MB. Free memory was 126.1MB in the beginning and 124.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.81ms. Allocated memory is still 186.6MB. Free memory was 124.0MB in the beginning and 121.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 778.51ms. Allocated memory is still 186.6MB. Free memory was 121.2MB in the beginning and 98.9MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 21413.14ms. Allocated memory was 186.6MB in the beginning and 469.8MB in the end (delta: 283.1MB). Free memory was 98.1MB in the beginning and 164.2MB in the end (delta: -66.0MB). Peak memory consumption was 237.4MB. Max. memory is 16.1GB. * Witness Printer took 178.57ms. Allocated memory is still 469.8MB. Free memory was 164.2MB in the beginning and 433.7MB in the end (delta: -269.6MB). Peak memory consumption was 9.3MB. 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: 21.3s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3955 SdHoareTripleChecker+Valid, 5.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3873 mSDsluCounter, 4458 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3474 mSDsCounter, 977 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5259 IncrementalHoareTripleChecker+Invalid, 6236 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 977 mSolverCounterUnsat, 984 mSDtfsCounter, 5259 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 310 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 2.1s 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: 0.9s AutomataMinimizationTime, 9 MinimizatonAttempts, 768 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 1574 PreInvPairs, 2017 NumberOfFragments, 381 HoareAnnotationTreeSize, 1574 FomulaSimplifications, 299571 FormulaSimplificationTreeSizeReduction, 6.1s HoareSimplificationTime, 28 FomulaSimplificationsInter, 14918 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.3s 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! [2023-11-23 22:42:21,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da50b5f3-0d3a-4161-ae82-ed8577ffe752/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE