./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_85059a4d-e08c-497a-8f95-68ca5aa679ba/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85059a4d-e08c-497a-8f95-68ca5aa679ba/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85059a4d-e08c-497a-8f95-68ca5aa679ba/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85059a4d-e08c-497a-8f95-68ca5aa679ba/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85059a4d-e08c-497a-8f95-68ca5aa679ba/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85059a4d-e08c-497a-8f95-68ca5aa679ba/bin/utaipan-verify-mE87zJ7Ire --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 677126e8d6773c92cc337bfe0a3ec155f49f784424155f33a8c9c24ee0a42113 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:13:30,509 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:13:30,629 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85059a4d-e08c-497a-8f95-68ca5aa679ba/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:13:30,635 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:13:30,637 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:13:30,675 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:13:30,676 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:13:30,677 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:13:30,678 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:13:30,683 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:13:30,683 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:13:30,685 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:13:30,685 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:13:30,687 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:13:30,687 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:13:30,688 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:13:30,688 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:13:30,688 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:13:30,689 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:13:30,689 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:13:30,690 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:13:30,690 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:13:30,692 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:13:30,692 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:13:30,692 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:13:30,693 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:13:30,693 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:13:30,694 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:13:30,694 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:13:30,694 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:13:30,696 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:13:30,696 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:13:30,696 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:13:30,696 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:13:30,697 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:13:30,697 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:13:30,697 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:13:30,697 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:13:30,698 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:13:30,698 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:13:30,698 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:13:30,699 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:13:30,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:13:30,699 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:13:30,700 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:13:30,700 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:13:30,700 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:13:30,700 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_85059a4d-e08c-497a-8f95-68ca5aa679ba/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85059a4d-e08c-497a-8f95-68ca5aa679ba/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 677126e8d6773c92cc337bfe0a3ec155f49f784424155f33a8c9c24ee0a42113 [2023-11-23 21:13:30,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:13:31,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:13:31,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:13:31,031 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:13:31,032 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:13:31,033 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85059a4d-e08c-497a-8f95-68ca5aa679ba/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c [2023-11-23 21:13:33,999 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:13:34,338 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:13:34,341 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85059a4d-e08c-497a-8f95-68ca5aa679ba/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c [2023-11-23 21:13:34,359 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85059a4d-e08c-497a-8f95-68ca5aa679ba/bin/utaipan-verify-mE87zJ7Ire/data/cfe21cfba/af618794541a4742bbb86be6ada9d7a2/FLAGd04a58a93 [2023-11-23 21:13:34,376 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85059a4d-e08c-497a-8f95-68ca5aa679ba/bin/utaipan-verify-mE87zJ7Ire/data/cfe21cfba/af618794541a4742bbb86be6ada9d7a2 [2023-11-23 21:13:34,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:13:34,385 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:13:34,389 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:13:34,389 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:13:34,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:13:34,395 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:13:34" (1/1) ... [2023-11-23 21:13:34,396 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc76f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:34, skipping insertion in model container [2023-11-23 21:13:34,396 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:13:34" (1/1) ... [2023-11-23 21:13:34,456 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:13:34,646 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_85059a4d-e08c-497a-8f95-68ca5aa679ba/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c[640,653] [2023-11-23 21:13:34,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:13:34,724 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:13:34,736 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_85059a4d-e08c-497a-8f95-68ca5aa679ba/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c[640,653] [2023-11-23 21:13:34,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:13:34,784 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:13:34,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:34 WrapperNode [2023-11-23 21:13:34,785 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:13:34,786 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:13:34,787 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:13:34,787 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:13:34,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:34" (1/1) ... [2023-11-23 21:13:34,804 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:34" (1/1) ... [2023-11-23 21:13:34,847 INFO L138 Inliner]: procedures = 31, calls = 35, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 227 [2023-11-23 21:13:34,847 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:13:34,847 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:13:34,848 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:13:34,848 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:13:34,857 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:34" (1/1) ... [2023-11-23 21:13:34,857 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:34" (1/1) ... [2023-11-23 21:13:34,860 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:34" (1/1) ... [2023-11-23 21:13:34,860 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:34" (1/1) ... [2023-11-23 21:13:34,866 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:34" (1/1) ... [2023-11-23 21:13:34,871 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:34" (1/1) ... [2023-11-23 21:13:34,874 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:34" (1/1) ... [2023-11-23 21:13:34,875 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:34" (1/1) ... [2023-11-23 21:13:34,879 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:13:34,880 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:13:34,880 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:13:34,880 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:13:34,881 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:34" (1/1) ... [2023-11-23 21:13:34,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:13:34,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85059a4d-e08c-497a-8f95-68ca5aa679ba/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:13:34,934 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85059a4d-e08c-497a-8f95-68ca5aa679ba/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:13:34,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85059a4d-e08c-497a-8f95-68ca5aa679ba/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:13:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:13:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-11-23 21:13:34,971 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-11-23 21:13:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-11-23 21:13:34,971 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-11-23 21:13:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-11-23 21:13:34,971 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-11-23 21:13:34,972 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-11-23 21:13:34,972 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-11-23 21:13:34,972 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-11-23 21:13:34,972 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-11-23 21:13:34,972 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-11-23 21:13:34,973 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-11-23 21:13:34,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:13:34,973 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-11-23 21:13:34,973 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-11-23 21:13:34,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:13:34,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:13:34,974 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-11-23 21:13:34,974 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-11-23 21:13:35,050 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:13:35,052 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:13:35,417 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##54: assume !(1 == ~q_free~0); [2023-11-23 21:13:35,418 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 21:13:35,437 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:13:35,598 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:13:35,599 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-23 21:13:35,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:13:35 BoogieIcfgContainer [2023-11-23 21:13:35,601 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:13:35,603 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:13:35,604 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:13:35,607 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:13:35,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:13:34" (1/3) ... [2023-11-23 21:13:35,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77177404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:13:35, skipping insertion in model container [2023-11-23 21:13:35,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:34" (2/3) ... [2023-11-23 21:13:35,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77177404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:13:35, skipping insertion in model container [2023-11-23 21:13:35,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:13:35" (3/3) ... [2023-11-23 21:13:35,613 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil.c [2023-11-23 21:13:35,634 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:13:35,634 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:13:35,685 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:13:35,692 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=FINITE_AUTOMATA, 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;@56cbda8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:13:35,693 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:13:35,698 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 53 states have (on average 1.490566037735849) internal successors, (79), 57 states have internal predecessors, (79), 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 21:13:35,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-23 21:13:35,709 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:13:35,709 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] [2023-11-23 21:13:35,710 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:13:35,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:13:35,715 INFO L85 PathProgramCache]: Analyzing trace with hash -744371592, now seen corresponding path program 1 times [2023-11-23 21:13:35,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:13:35,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043865353] [2023-11-23 21:13:35,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:13:35,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:13:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:13:36,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:13:36,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:13:36,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043865353] [2023-11-23 21:13:36,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043865353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:13:36,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:13:36,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:13:36,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788729846] [2023-11-23 21:13:36,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:13:36,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:13:36,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:13:36,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:13:36,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:13:36,260 INFO L87 Difference]: Start difference. First operand has 79 states, 53 states have (on average 1.490566037735849) internal successors, (79), 57 states have internal predecessors, (79), 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 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-23 21:13:36,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:13:36,614 INFO L93 Difference]: Finished difference Result 285 states and 409 transitions. [2023-11-23 21:13:36,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:13:36,617 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 43 [2023-11-23 21:13:36,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:13:36,630 INFO L225 Difference]: With dead ends: 285 [2023-11-23 21:13:36,631 INFO L226 Difference]: Without dead ends: 205 [2023-11-23 21:13:36,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:13:36,639 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 167 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:13:36,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 254 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:13:36,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-11-23 21:13:36,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 194. [2023-11-23 21:13:36,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 136 states have (on average 1.3676470588235294) internal successors, (186), 138 states have internal predecessors, (186), 36 states have call successors, (36), 22 states have call predecessors, (36), 21 states have return successors, (37), 34 states have call predecessors, (37), 34 states have call successors, (37) [2023-11-23 21:13:36,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 259 transitions. [2023-11-23 21:13:36,711 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 259 transitions. Word has length 43 [2023-11-23 21:13:36,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:13:36,712 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 259 transitions. [2023-11-23 21:13:36,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-23 21:13:36,712 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 259 transitions. [2023-11-23 21:13:36,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-23 21:13:36,715 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:13:36,716 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] [2023-11-23 21:13:36,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:13:36,716 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:13:36,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:13:36,717 INFO L85 PathProgramCache]: Analyzing trace with hash -600838586, now seen corresponding path program 1 times [2023-11-23 21:13:36,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:13:36,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560386699] [2023-11-23 21:13:36,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:13:36,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:13:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:13:36,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:13:36,888 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:13:36,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560386699] [2023-11-23 21:13:36,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560386699] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:13:36,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:13:36,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 21:13:36,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286276270] [2023-11-23 21:13:36,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:13:36,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:13:36,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:13:36,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:13:36,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:13:36,894 INFO L87 Difference]: Start difference. First operand 194 states and 259 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-23 21:13:37,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:13:37,782 INFO L93 Difference]: Finished difference Result 731 states and 982 transitions. [2023-11-23 21:13:37,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 21:13:37,783 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 44 [2023-11-23 21:13:37,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:13:37,790 INFO L225 Difference]: With dead ends: 731 [2023-11-23 21:13:37,790 INFO L226 Difference]: Without dead ends: 265 [2023-11-23 21:13:37,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:13:37,803 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 506 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:13:37,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 514 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 21:13:37,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-11-23 21:13:37,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 180. [2023-11-23 21:13:37,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 122 states have (on average 1.2540983606557377) internal successors, (153), 124 states have internal predecessors, (153), 36 states have call successors, (36), 22 states have call predecessors, (36), 21 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-23 21:13:37,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 223 transitions. [2023-11-23 21:13:37,868 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 223 transitions. Word has length 44 [2023-11-23 21:13:37,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:13:37,869 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 223 transitions. [2023-11-23 21:13:37,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-23 21:13:37,870 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 223 transitions. [2023-11-23 21:13:37,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-23 21:13:37,877 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:13:37,877 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] [2023-11-23 21:13:37,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:13:37,877 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:13:37,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:13:37,878 INFO L85 PathProgramCache]: Analyzing trace with hash 915894849, now seen corresponding path program 1 times [2023-11-23 21:13:37,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:13:37,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604692236] [2023-11-23 21:13:37,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:13:37,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:13:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:13:38,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:13:38,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:13:38,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604692236] [2023-11-23 21:13:38,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604692236] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:13:38,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:13:38,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 21:13:38,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97411167] [2023-11-23 21:13:38,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:13:38,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:13:38,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:13:38,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:13:38,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:13:38,125 INFO L87 Difference]: Start difference. First operand 180 states and 223 transitions. Second operand has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-23 21:13:38,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:13:38,576 INFO L93 Difference]: Finished difference Result 482 states and 591 transitions. [2023-11-23 21:13:38,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 21:13:38,577 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 45 [2023-11-23 21:13:38,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:13:38,581 INFO L225 Difference]: With dead ends: 482 [2023-11-23 21:13:38,581 INFO L226 Difference]: Without dead ends: 308 [2023-11-23 21:13:38,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-11-23 21:13:38,584 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 208 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:13:38,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 297 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:13:38,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2023-11-23 21:13:38,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 282. [2023-11-23 21:13:38,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 190 states have (on average 1.236842105263158) internal successors, (235), 192 states have internal predecessors, (235), 56 states have call successors, (56), 36 states have call predecessors, (56), 35 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-23 21:13:38,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 345 transitions. [2023-11-23 21:13:38,676 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 345 transitions. Word has length 45 [2023-11-23 21:13:38,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:13:38,678 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 345 transitions. [2023-11-23 21:13:38,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-23 21:13:38,678 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 345 transitions. [2023-11-23 21:13:38,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-23 21:13:38,687 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:13:38,687 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] [2023-11-23 21:13:38,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:13:38,688 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:13:38,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:13:38,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1196231434, now seen corresponding path program 1 times [2023-11-23 21:13:38,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:13:38,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255348854] [2023-11-23 21:13:38,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:13:38,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:13:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:13:38,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:13:38,769 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:13:38,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255348854] [2023-11-23 21:13:38,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255348854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:13:38,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:13:38,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:13:38,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361678606] [2023-11-23 21:13:38,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:13:38,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:13:38,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:13:38,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:13:38,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:13:38,773 INFO L87 Difference]: Start difference. First operand 282 states and 345 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (8), 2 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 21:13:38,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:13:38,848 INFO L93 Difference]: Finished difference Result 547 states and 681 transitions. [2023-11-23 21:13:38,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:13:38,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (8), 2 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 46 [2023-11-23 21:13:38,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:13:38,849 INFO L225 Difference]: With dead ends: 547 [2023-11-23 21:13:38,849 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 21:13:38,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:13:38,859 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 71 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:13:38,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 69 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:13:38,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 21:13:38,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 21:13:38,864 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 21:13:38,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 21:13:38,865 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2023-11-23 21:13:38,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:13:38,867 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:13:38,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (8), 2 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 21:13:38,868 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:13:38,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 21:13:38,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:13:38,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:13:38,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 21:13:39,653 INFO L895 garLoopResultBuilder]: At program point L385(line 385) the Hoare annotation is: (or (= |old(~p_dw_st~0)| ~p_dw_st~0) (not (= ~c_dr_pc~0 0)) (not (= ~p_dw_i~0 1))) [2023-11-23 21:13:39,653 INFO L895 garLoopResultBuilder]: At program point L387-2(lines 387 391) the Hoare annotation is: (or (not (= ~c_dr_pc~0 0)) (= ~p_dw_st~0 0) (not (= ~p_dw_i~0 1)) (not (= |old(~p_dw_st~0)| 0))) [2023-11-23 21:13:39,653 INFO L899 garLoopResultBuilder]: For program point L385-1(line 385) no Hoare annotation was computed. [2023-11-23 21:13:39,653 INFO L899 garLoopResultBuilder]: For program point activate_threadsEXIT(lines 379 403) no Hoare annotation was computed. [2023-11-23 21:13:39,653 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 379 403) the Hoare annotation is: (or (= |old(~p_dw_st~0)| ~p_dw_st~0) (not (= ~c_dr_pc~0 0)) (not (= ~p_dw_i~0 1))) [2023-11-23 21:13:39,654 INFO L899 garLoopResultBuilder]: For program point L393(line 393) no Hoare annotation was computed. [2023-11-23 21:13:39,654 INFO L899 garLoopResultBuilder]: For program point exists_runnable_threadEXIT(lines 287 306) no Hoare annotation was computed. [2023-11-23 21:13:39,654 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 287 306) the Hoare annotation is: true [2023-11-23 21:13:39,654 INFO L899 garLoopResultBuilder]: For program point L96(lines 96 101) no Hoare annotation was computed. [2023-11-23 21:13:39,654 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 104) no Hoare annotation was computed. [2023-11-23 21:13:39,654 INFO L899 garLoopResultBuilder]: For program point L95-2(lines 94 118) no Hoare annotation was computed. [2023-11-23 21:13:39,654 INFO L899 garLoopResultBuilder]: For program point L116(lines 94 118) no Hoare annotation was computed. [2023-11-23 21:13:39,654 INFO L899 garLoopResultBuilder]: For program point L106(lines 106 111) no Hoare annotation was computed. [2023-11-23 21:13:39,655 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 91 119) the Hoare annotation is: true [2023-11-23 21:13:39,655 INFO L899 garLoopResultBuilder]: For program point L105-1(lines 105 114) no Hoare annotation was computed. [2023-11-23 21:13:39,655 INFO L899 garLoopResultBuilder]: For program point is_do_read_c_triggeredEXIT(lines 91 119) no Hoare annotation was computed. [2023-11-23 21:13:39,655 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 307 324) the Hoare annotation is: true [2023-11-23 21:13:39,655 INFO L899 garLoopResultBuilder]: For program point fire_delta_eventsEXIT(lines 307 324) no Hoare annotation was computed. [2023-11-23 21:13:39,655 INFO L899 garLoopResultBuilder]: For program point update_channelsEXIT(lines 254 268) no Hoare annotation was computed. [2023-11-23 21:13:39,655 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 254 268) the Hoare annotation is: true [2023-11-23 21:13:39,656 INFO L899 garLoopResultBuilder]: For program point reset_delta_eventsEXIT(lines 325 342) no Hoare annotation was computed. [2023-11-23 21:13:39,656 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 325 342) the Hoare annotation is: true [2023-11-23 21:13:39,656 INFO L899 garLoopResultBuilder]: For program point L514-1(line 514) no Hoare annotation was computed. [2023-11-23 21:13:39,656 INFO L899 garLoopResultBuilder]: For program point L415(lines 415 419) no Hoare annotation was computed. [2023-11-23 21:13:39,656 INFO L899 garLoopResultBuilder]: For program point L415-1(lines 410 450) no Hoare annotation was computed. [2023-11-23 21:13:39,656 INFO L899 garLoopResultBuilder]: For program point L234(lines 234 246) no Hoare annotation was computed. [2023-11-23 21:13:39,656 INFO L899 garLoopResultBuilder]: For program point L152(lines 152 160) no Hoare annotation was computed. [2023-11-23 21:13:39,656 INFO L899 garLoopResultBuilder]: For program point do_write_p_returnLabel#1(lines 145 193) no Hoare annotation was computed. [2023-11-23 21:13:39,657 INFO L899 garLoopResultBuilder]: For program point start_simulation_returnLabel#1(lines 476 534) no Hoare annotation was computed. [2023-11-23 21:13:39,657 INFO L895 garLoopResultBuilder]: At program point L499(line 499) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2023-11-23 21:13:39,657 INFO L899 garLoopResultBuilder]: For program point L499-1(line 499) no Hoare annotation was computed. [2023-11-23 21:13:39,657 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 241) no Hoare annotation was computed. [2023-11-23 21:13:39,657 INFO L899 garLoopResultBuilder]: For program point L202(lines 202 206) no Hoare annotation was computed. [2023-11-23 21:13:39,657 INFO L895 garLoopResultBuilder]: At program point L484(line 484) the Hoare annotation is: (and (= ~p_dw_pc~0 0) (= ~p_dw_st~0 0) (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) [2023-11-23 21:13:39,658 INFO L899 garLoopResultBuilder]: For program point L484-1(line 484) no Hoare annotation was computed. [2023-11-23 21:13:39,658 INFO L895 garLoopResultBuilder]: At program point L435(lines 410 450) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2023-11-23 21:13:39,658 INFO L899 garLoopResultBuilder]: For program point L171(lines 171 179) no Hoare annotation was computed. [2023-11-23 21:13:39,658 INFO L899 garLoopResultBuilder]: For program point L155(lines 155 159) no Hoare annotation was computed. [2023-11-23 21:13:39,658 INFO L895 garLoopResultBuilder]: At program point L486(line 486) the Hoare annotation is: (and (= ~p_dw_pc~0 0) (= ~p_dw_st~0 0) (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) [2023-11-23 21:13:39,658 INFO L895 garLoopResultBuilder]: At program point L486-1(line 486) the Hoare annotation is: (and (= ~p_dw_pc~0 0) (= ~p_dw_st~0 0) (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) [2023-11-23 21:13:39,659 INFO L899 garLoopResultBuilder]: For program point L420(lines 410 450) no Hoare annotation was computed. [2023-11-23 21:13:39,659 INFO L895 garLoopResultBuilder]: At program point L503(line 503) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2023-11-23 21:13:39,659 INFO L895 garLoopResultBuilder]: At program point L503-1(line 503) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2023-11-23 21:13:39,659 INFO L895 garLoopResultBuilder]: At program point L239(line 239) the Hoare annotation is: false [2023-11-23 21:13:39,659 INFO L895 garLoopResultBuilder]: At program point L487(line 487) the Hoare annotation is: (and (= ~p_dw_pc~0 0) (= ~p_dw_st~0 0) (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) [2023-11-23 21:13:39,659 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 21:13:39,660 INFO L895 garLoopResultBuilder]: At program point L504(line 504) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2023-11-23 21:13:39,660 INFO L895 garLoopResultBuilder]: At program point L505(line 505) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2023-11-23 21:13:39,670 INFO L899 garLoopResultBuilder]: For program point L439(lines 439 446) no Hoare annotation was computed. [2023-11-23 21:13:39,674 INFO L899 garLoopResultBuilder]: For program point L523(lines 523 527) no Hoare annotation was computed. [2023-11-23 21:13:39,674 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 431) no Hoare annotation was computed. [2023-11-23 21:13:39,675 INFO L899 garLoopResultBuilder]: For program point $Ultimate##36(lines 171 179) no Hoare annotation was computed. [2023-11-23 21:13:39,675 INFO L895 garLoopResultBuilder]: At program point L491-1(lines 491 528) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2023-11-23 21:13:39,675 INFO L899 garLoopResultBuilder]: For program point L508(line 508) no Hoare annotation was computed. [2023-11-23 21:13:39,675 INFO L895 garLoopResultBuilder]: At program point L244(line 244) the Hoare annotation is: false [2023-11-23 21:13:39,676 INFO L902 garLoopResultBuilder]: At program point L244-1(lines 210 247) the Hoare annotation is: true [2023-11-23 21:13:39,676 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 21:13:39,676 INFO L899 garLoopResultBuilder]: For program point eval_returnLabel#1(lines 404 456) no Hoare annotation was computed. [2023-11-23 21:13:39,676 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 519) no Hoare annotation was computed. [2023-11-23 21:13:39,681 INFO L899 garLoopResultBuilder]: For program point L510-2(lines 510 519) no Hoare annotation was computed. [2023-11-23 21:13:39,681 INFO L895 garLoopResultBuilder]: At program point L411(line 411) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2023-11-23 21:13:39,681 INFO L895 garLoopResultBuilder]: At program point L164-1(lines 164 187) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2023-11-23 21:13:39,681 INFO L899 garLoopResultBuilder]: For program point L413(line 413) no Hoare annotation was computed. [2023-11-23 21:13:39,682 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 161) no Hoare annotation was computed. [2023-11-23 21:13:39,682 INFO L895 garLoopResultBuilder]: At program point L463(line 463) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2023-11-23 21:13:39,682 INFO L899 garLoopResultBuilder]: For program point L463-1(line 463) no Hoare annotation was computed. [2023-11-23 21:13:39,682 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 207) no Hoare annotation was computed. [2023-11-23 21:13:39,682 INFO L895 garLoopResultBuilder]: At program point L514(line 514) the Hoare annotation is: (or (and (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (= ~c_dr_pc~0 1)) [2023-11-23 21:13:39,684 INFO L899 garLoopResultBuilder]: For program point L66-2(lines 65 89) no Hoare annotation was computed. [2023-11-23 21:13:39,684 INFO L899 garLoopResultBuilder]: For program point L87(lines 65 89) no Hoare annotation was computed. [2023-11-23 21:13:39,684 INFO L899 garLoopResultBuilder]: For program point is_do_write_p_triggeredEXIT(lines 62 90) no Hoare annotation was computed. [2023-11-23 21:13:39,684 INFO L899 garLoopResultBuilder]: For program point L77(lines 77 82) no Hoare annotation was computed. [2023-11-23 21:13:39,684 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 76 85) no Hoare annotation was computed. [2023-11-23 21:13:39,684 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 62 90) the Hoare annotation is: true [2023-11-23 21:13:39,685 INFO L899 garLoopResultBuilder]: For program point L67(lines 67 72) no Hoare annotation was computed. [2023-11-23 21:13:39,686 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 75) no Hoare annotation was computed. [2023-11-23 21:13:39,686 INFO L899 garLoopResultBuilder]: For program point errorEXIT(lines 15 22) no Hoare annotation was computed. [2023-11-23 21:13:39,686 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 15 22) the Hoare annotation is: true [2023-11-23 21:13:39,686 INFO L899 garLoopResultBuilder]: For program point errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-23 21:13:39,689 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-23 21:13:39,692 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:13:39,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:13:39 BoogieIcfgContainer [2023-11-23 21:13:39,707 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:13:39,708 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:13:39,708 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:13:39,708 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:13:39,708 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:13:35" (3/4) ... [2023-11-23 21:13:39,711 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 21:13:39,714 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure activate_threads [2023-11-23 21:13:39,714 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure exists_runnable_thread [2023-11-23 21:13:39,714 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure is_do_read_c_triggered [2023-11-23 21:13:39,714 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fire_delta_events [2023-11-23 21:13:39,714 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure update_channels [2023-11-23 21:13:39,715 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reset_delta_events [2023-11-23 21:13:39,715 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure is_do_write_p_triggered [2023-11-23 21:13:39,715 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure error [2023-11-23 21:13:39,740 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2023-11-23 21:13:39,743 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-23 21:13:39,744 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 21:13:39,745 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:13:39,888 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85059a4d-e08c-497a-8f95-68ca5aa679ba/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 21:13:39,889 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85059a4d-e08c-497a-8f95-68ca5aa679ba/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 21:13:39,889 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:13:39,890 INFO L158 Benchmark]: Toolchain (without parser) took 5504.24ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 118.2MB in the beginning and 139.9MB in the end (delta: -21.7MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2023-11-23 21:13:39,890 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory is still 67.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:13:39,890 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.85ms. Allocated memory is still 148.9MB. Free memory was 117.7MB in the beginning and 104.0MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:13:39,891 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.63ms. Allocated memory is still 148.9MB. Free memory was 104.0MB in the beginning and 101.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:13:39,891 INFO L158 Benchmark]: Boogie Preprocessor took 31.83ms. Allocated memory is still 148.9MB. Free memory was 101.8MB in the beginning and 99.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:13:39,891 INFO L158 Benchmark]: RCFGBuilder took 720.74ms. Allocated memory is still 148.9MB. Free memory was 99.8MB in the beginning and 68.3MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-23 21:13:39,892 INFO L158 Benchmark]: TraceAbstraction took 4103.62ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 67.3MB in the beginning and 147.2MB in the end (delta: -79.9MB). Peak memory consumption was 51.7MB. Max. memory is 16.1GB. [2023-11-23 21:13:39,892 INFO L158 Benchmark]: Witness Printer took 181.44ms. Allocated memory is still 180.4MB. Free memory was 147.2MB in the beginning and 139.9MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 21:13:39,894 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory is still 67.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 396.85ms. Allocated memory is still 148.9MB. Free memory was 117.7MB in the beginning and 104.0MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.63ms. Allocated memory is still 148.9MB. Free memory was 104.0MB in the beginning and 101.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.83ms. Allocated memory is still 148.9MB. Free memory was 101.8MB in the beginning and 99.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 720.74ms. Allocated memory is still 148.9MB. Free memory was 99.8MB in the beginning and 68.3MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4103.62ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 67.3MB in the beginning and 147.2MB in the end (delta: -79.9MB). Peak memory consumption was 51.7MB. Max. memory is 16.1GB. * Witness Printer took 181.44ms. Allocated memory is still 180.4MB. Free memory was 147.2MB in the beginning and 139.9MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. 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, 79 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 969 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 952 mSDsluCounter, 1134 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 661 mSDsCounter, 261 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1054 IncrementalHoareTripleChecker+Invalid, 1315 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 261 mSolverCounterUnsat, 473 mSDtfsCounter, 1054 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=282occurred in iteration=3, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 122 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 341 PreInvPairs, 451 NumberOfFragments, 223 HoareAnnotationTreeSize, 341 FomulaSimplifications, 784 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 28 FomulaSimplificationsInter, 2677 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 178 NumberOfCodeBlocks, 178 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 174 ConstructedInterpolants, 0 QuantifiedInterpolants, 306 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 == 0) && (p_dw_i == 1)) || (c_dr_pc == 1)) - InvariantResult [Line: 210]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 254]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: (((c_dr_pc == 0) && (p_dw_i == 1)) || (c_dr_pc == 1)) - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: (((c_dr_pc == 0) && (p_dw_i == 1)) || (c_dr_pc == 1)) - InvariantResult [Line: 287]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-23 21:13:39,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85059a4d-e08c-497a-8f95-68ca5aa679ba/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE