./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/pc_sfifo_2.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/systemc/pc_sfifo_2.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh --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 b74079121634b4e5d8b815834e604eed77442466d93875e78a8cab3fe135fa1f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:32:28,870 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:32:28,930 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 12:32:28,934 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:32:28,934 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:32:28,956 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:32:28,957 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:32:28,957 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:32:28,958 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:32:28,959 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:32:28,959 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:32:28,960 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:32:28,960 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:32:28,961 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 12:32:28,961 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:32:28,962 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:32:28,962 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 12:32:28,963 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 12:32:28,963 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:32:28,964 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 12:32:28,964 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 12:32:28,965 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 12:32:28,966 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:32:28,966 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:32:28,967 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 12:32:28,967 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 12:32:28,968 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 12:32:28,968 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:32:28,969 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:32:28,969 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:32:28,969 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:32:28,970 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 12:32:28,970 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:32:28,970 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:32:28,970 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:32:28,971 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:32:28,971 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:32:28,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:32:28,971 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:32:28,971 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:32:28,972 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:32:28,972 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 12:32:28,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 12:32:28,972 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:32:28,972 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:32:28,973 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:32:28,973 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:32:28,973 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_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b74079121634b4e5d8b815834e604eed77442466d93875e78a8cab3fe135fa1f [2023-12-02 12:32:29,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:32:29,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:32:29,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:32:29,208 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:32:29,209 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:32:29,210 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/systemc/pc_sfifo_2.cil-1.c [2023-12-02 12:32:34,002 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:32:34,292 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:32:34,293 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/sv-benchmarks/c/systemc/pc_sfifo_2.cil-1.c [2023-12-02 12:32:34,306 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/data/470166f75/ce65e42901c54b3da0dcd427a8a5a602/FLAG8ee75c75d [2023-12-02 12:32:34,324 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/data/470166f75/ce65e42901c54b3da0dcd427a8a5a602 [2023-12-02 12:32:34,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:32:34,329 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:32:34,331 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:32:34,331 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:32:34,338 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:32:34,339 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:32:34" (1/1) ... [2023-12-02 12:32:34,340 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ed5003f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:34, skipping insertion in model container [2023-12-02 12:32:34,340 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:32:34" (1/1) ... [2023-12-02 12:32:34,385 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:32:34,564 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_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/sv-benchmarks/c/systemc/pc_sfifo_2.cil-1.c[643,656] [2023-12-02 12:32:34,624 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:32:34,638 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:32:34,654 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_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/sv-benchmarks/c/systemc/pc_sfifo_2.cil-1.c[643,656] [2023-12-02 12:32:34,684 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:32:34,701 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:32:34,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:34 WrapperNode [2023-12-02 12:32:34,702 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:32:34,704 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:32:34,704 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:32:34,704 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:32:34,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:34" (1/1) ... [2023-12-02 12:32:34,719 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:34" (1/1) ... [2023-12-02 12:32:34,750 INFO L138 Inliner]: procedures = 29, calls = 31, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 189 [2023-12-02 12:32:34,751 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:32:34,752 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:32:34,752 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:32:34,752 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:32:34,761 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:34" (1/1) ... [2023-12-02 12:32:34,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:34" (1/1) ... [2023-12-02 12:32:34,763 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:34" (1/1) ... [2023-12-02 12:32:34,763 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:34" (1/1) ... [2023-12-02 12:32:34,769 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:34" (1/1) ... [2023-12-02 12:32:34,773 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:34" (1/1) ... [2023-12-02 12:32:34,775 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:34" (1/1) ... [2023-12-02 12:32:34,777 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:34" (1/1) ... [2023-12-02 12:32:34,779 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:32:34,780 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:32:34,780 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:32:34,781 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:32:34,781 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:34" (1/1) ... [2023-12-02 12:32:34,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:32:34,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:32:34,825 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:32:34,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:32:34,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:32:34,865 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-02 12:32:34,865 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-02 12:32:34,865 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-02 12:32:34,866 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-02 12:32:34,866 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-02 12:32:34,866 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-02 12:32:34,866 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-02 12:32:34,866 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-02 12:32:34,866 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-02 12:32:34,867 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-02 12:32:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-02 12:32:34,867 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-02 12:32:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 12:32:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-02 12:32:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-02 12:32:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:32:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:32:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-02 12:32:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-02 12:32:34,971 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:32:34,974 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:32:35,293 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:32:35,403 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:32:35,404 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-02 12:32:35,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:32:35 BoogieIcfgContainer [2023-12-02 12:32:35,406 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:32:35,410 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:32:35,410 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:32:35,414 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:32:35,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:32:34" (1/3) ... [2023-12-02 12:32:35,415 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37723928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:32:35, skipping insertion in model container [2023-12-02 12:32:35,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:34" (2/3) ... [2023-12-02 12:32:35,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37723928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:32:35, skipping insertion in model container [2023-12-02 12:32:35,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:32:35" (3/3) ... [2023-12-02 12:32:35,418 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1.c [2023-12-02 12:32:35,442 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:32:35,442 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 12:32:35,507 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:32:35,516 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;@6f492662, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:32:35,516 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 12:32:35,522 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 48 states have (on average 1.4791666666666667) internal successors, (71), 52 states have internal predecessors, (71), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-02 12:32:35,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-02 12:32:35,535 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:32:35,536 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] [2023-12-02 12:32:35,536 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:32:35,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:32:35,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1967912658, now seen corresponding path program 1 times [2023-12-02 12:32:35,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:32:35,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540588375] [2023-12-02 12:32:35,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:32:35,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:32:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:32:35,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:32:35,922 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:32:35,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540588375] [2023-12-02 12:32:35,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540588375] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:32:35,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:32:35,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 12:32:35,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447204897] [2023-12-02 12:32:35,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:32:35,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 12:32:35,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:32:35,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 12:32:35,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 12:32:35,972 INFO L87 Difference]: Start difference. First operand has 72 states, 48 states have (on average 1.4791666666666667) internal successors, (71), 52 states have internal predecessors, (71), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2023-12-02 12:32:36,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:32:36,195 INFO L93 Difference]: Finished difference Result 201 states and 279 transitions. [2023-12-02 12:32:36,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 12:32:36,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 44 [2023-12-02 12:32:36,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:32:36,209 INFO L225 Difference]: With dead ends: 201 [2023-12-02 12:32:36,209 INFO L226 Difference]: Without dead ends: 130 [2023-12-02 12:32:36,213 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 [2023-12-02 12:32:36,218 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 155 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 12:32:36,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 220 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 12:32:36,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-12-02 12:32:36,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 123. [2023-12-02 12:32:36,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 86 states have (on average 1.3372093023255813) internal successors, (115), 88 states have internal predecessors, (115), 22 states have call successors, (22), 15 states have call predecessors, (22), 14 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 12:32:36,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 157 transitions. [2023-12-02 12:32:36,290 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 157 transitions. Word has length 44 [2023-12-02 12:32:36,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:32:36,291 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 157 transitions. [2023-12-02 12:32:36,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2023-12-02 12:32:36,292 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 157 transitions. [2023-12-02 12:32:36,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-02 12:32:36,295 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:32:36,296 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] [2023-12-02 12:32:36,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 12:32:36,296 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:32:36,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:32:36,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1048938035, now seen corresponding path program 1 times [2023-12-02 12:32:36,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:32:36,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484361951] [2023-12-02 12:32:36,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:32:36,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:32:36,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:32:36,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:32:36,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:32:36,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484361951] [2023-12-02 12:32:36,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484361951] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:32:36,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:32:36,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 12:32:36,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237527397] [2023-12-02 12:32:36,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:32:36,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 12:32:36,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:32:36,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 12:32:36,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 12:32:36,444 INFO L87 Difference]: Start difference. First operand 123 states and 157 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-02 12:32:36,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:32:36,587 INFO L93 Difference]: Finished difference Result 352 states and 452 transitions. [2023-12-02 12:32:36,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 12:32:36,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 44 [2023-12-02 12:32:36,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:32:36,591 INFO L225 Difference]: With dead ends: 352 [2023-12-02 12:32:36,591 INFO L226 Difference]: Without dead ends: 234 [2023-12-02 12:32:36,593 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 [2023-12-02 12:32:36,594 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 149 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:32:36,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 220 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:32:36,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2023-12-02 12:32:36,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 220. [2023-12-02 12:32:36,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 153 states have (on average 1.2483660130718954) internal successors, (191), 155 states have internal predecessors, (191), 38 states have call successors, (38), 29 states have call predecessors, (38), 28 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-02 12:32:36,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 265 transitions. [2023-12-02 12:32:36,634 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 265 transitions. Word has length 44 [2023-12-02 12:32:36,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:32:36,634 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 265 transitions. [2023-12-02 12:32:36,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-02 12:32:36,635 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 265 transitions. [2023-12-02 12:32:36,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 12:32:36,637 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:32:36,637 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] [2023-12-02 12:32:36,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 12:32:36,638 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:32:36,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:32:36,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1449104608, now seen corresponding path program 1 times [2023-12-02 12:32:36,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:32:36,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590136535] [2023-12-02 12:32:36,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:32:36,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:32:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:32:36,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:32:36,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:32:36,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590136535] [2023-12-02 12:32:36,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590136535] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:32:36,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:32:36,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 12:32:36,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451714558] [2023-12-02 12:32:36,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:32:36,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 12:32:36,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:32:36,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 12:32:36,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-02 12:32:36,915 INFO L87 Difference]: Start difference. First operand 220 states and 265 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) [2023-12-02 12:32:37,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:32:37,334 INFO L93 Difference]: Finished difference Result 552 states and 657 transitions. [2023-12-02 12:32:37,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 12:32:37,335 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 [2023-12-02 12:32:37,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:32:37,340 INFO L225 Difference]: With dead ends: 552 [2023-12-02 12:32:37,340 INFO L226 Difference]: Without dead ends: 338 [2023-12-02 12:32:37,342 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 [2023-12-02 12:32:37,343 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 197 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 12:32:37,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 260 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 12:32:37,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2023-12-02 12:32:37,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 316. [2023-12-02 12:32:37,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 219 states have (on average 1.2283105022831051) internal successors, (269), 221 states have internal predecessors, (269), 54 states have call successors, (54), 43 states have call predecessors, (54), 42 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-02 12:32:37,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 375 transitions. [2023-12-02 12:32:37,397 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 375 transitions. Word has length 45 [2023-12-02 12:32:37,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:32:37,397 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 375 transitions. [2023-12-02 12:32:37,397 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) [2023-12-02 12:32:37,397 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 375 transitions. [2023-12-02 12:32:37,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 12:32:37,399 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:32:37,399 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] [2023-12-02 12:32:37,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 12:32:37,399 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:32:37,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:32:37,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1638783382, now seen corresponding path program 1 times [2023-12-02 12:32:37,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:32:37,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136182941] [2023-12-02 12:32:37,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:32:37,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:32:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:32:37,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:32:37,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:32:37,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136182941] [2023-12-02 12:32:37,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136182941] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:32:37,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:32:37,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:32:37,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252848439] [2023-12-02 12:32:37,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:32:37,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:32:37,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:32:37,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:32:37,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:32:37,452 INFO L87 Difference]: Start difference. First operand 316 states and 375 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) [2023-12-02 12:32:37,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:32:37,546 INFO L93 Difference]: Finished difference Result 687 states and 816 transitions. [2023-12-02 12:32:37,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:32:37,547 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 [2023-12-02 12:32:37,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:32:37,550 INFO L225 Difference]: With dead ends: 687 [2023-12-02 12:32:37,550 INFO L226 Difference]: Without dead ends: 423 [2023-12-02 12:32:37,552 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 [2023-12-02 12:32:37,553 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 67 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:32:37,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 133 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 12:32:37,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2023-12-02 12:32:37,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 415. [2023-12-02 12:32:37,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 288 states have (on average 1.2222222222222223) internal successors, (352), 290 states have internal predecessors, (352), 70 states have call successors, (70), 57 states have call predecessors, (70), 56 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-02 12:32:37,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 490 transitions. [2023-12-02 12:32:37,613 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 490 transitions. Word has length 46 [2023-12-02 12:32:37,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:32:37,614 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 490 transitions. [2023-12-02 12:32:37,614 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) [2023-12-02 12:32:37,614 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 490 transitions. [2023-12-02 12:32:37,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-02 12:32:37,616 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:32:37,616 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:32:37,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 12:32:37,617 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:32:37,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:32:37,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1034186750, now seen corresponding path program 1 times [2023-12-02 12:32:37,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:32:37,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727576540] [2023-12-02 12:32:37,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:32:37,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:32:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:32:37,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:32:37,706 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:32:37,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727576540] [2023-12-02 12:32:37,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727576540] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:32:37,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:32:37,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 12:32:37,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002145326] [2023-12-02 12:32:37,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:32:37,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 12:32:37,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:32:37,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 12:32:37,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 12:32:37,709 INFO L87 Difference]: Start difference. First operand 415 states and 490 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-02 12:32:37,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:32:37,890 INFO L93 Difference]: Finished difference Result 520 states and 611 transitions. [2023-12-02 12:32:37,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 12:32:37,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 53 [2023-12-02 12:32:37,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:32:37,895 INFO L225 Difference]: With dead ends: 520 [2023-12-02 12:32:37,895 INFO L226 Difference]: Without dead ends: 517 [2023-12-02 12:32:37,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:32:37,898 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 164 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:32:37,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 119 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:32:37,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2023-12-02 12:32:37,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 414. [2023-12-02 12:32:37,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 288 states have (on average 1.2118055555555556) internal successors, (349), 289 states have internal predecessors, (349), 69 states have call successors, (69), 57 states have call predecessors, (69), 56 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-02 12:32:37,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 486 transitions. [2023-12-02 12:32:37,960 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 486 transitions. Word has length 53 [2023-12-02 12:32:37,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:32:37,961 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 486 transitions. [2023-12-02 12:32:37,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-02 12:32:37,961 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 486 transitions. [2023-12-02 12:32:37,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-02 12:32:37,963 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:32:37,963 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:32:37,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 12:32:37,963 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:32:37,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:32:37,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1994666323, now seen corresponding path program 1 times [2023-12-02 12:32:37,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:32:37,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106525566] [2023-12-02 12:32:37,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:32:37,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:32:37,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:32:38,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:32:38,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:32:38,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106525566] [2023-12-02 12:32:38,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106525566] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:32:38,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526596446] [2023-12-02 12:32:38,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:32:38,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:32:38,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:32:38,110 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:32:38,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 12:32:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:32:38,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 12:32:38,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:32:38,450 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:32:38,450 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:32:38,551 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:32:38,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526596446] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:32:38,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1828750496] [2023-12-02 12:32:38,577 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2023-12-02 12:32:38,577 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 12:32:38,581 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 12:32:38,585 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 12:32:38,585 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 12:32:39,659 INFO L197 IcfgInterpreter]: Interpreting procedure reset_delta_events with input of size 67 for LOIs [2023-12-02 12:32:39,684 INFO L197 IcfgInterpreter]: Interpreting procedure fire_delta_events with input of size 67 for LOIs [2023-12-02 12:32:39,710 INFO L197 IcfgInterpreter]: Interpreting procedure update_channels with input of size 74 for LOIs [2023-12-02 12:32:39,734 INFO L197 IcfgInterpreter]: Interpreting procedure exists_runnable_thread with input of size 63 for LOIs [2023-12-02 12:32:39,764 INFO L197 IcfgInterpreter]: Interpreting procedure activate_threads with input of size 71 for LOIs [2023-12-02 12:32:39,986 INFO L197 IcfgInterpreter]: Interpreting procedure is_do_write_p_triggered with input of size 67 for LOIs [2023-12-02 12:32:40,025 INFO L197 IcfgInterpreter]: Interpreting procedure is_do_read_c_triggered with input of size 67 for LOIs [2023-12-02 12:32:40,075 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 12:32:43,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1828750496] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:32:43,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 12:32:43,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [5, 4, 4] total 40 [2023-12-02 12:32:43,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514770404] [2023-12-02 12:32:43,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:32:43,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-12-02 12:32:43,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:32:43,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-12-02 12:32:43,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1371, Unknown=0, NotChecked=0, Total=1560 [2023-12-02 12:32:43,813 INFO L87 Difference]: Start difference. First operand 414 states and 486 transitions. Second operand has 35 states, 25 states have (on average 1.52) internal successors, (38), 25 states have internal predecessors, (38), 8 states have call successors, (8), 7 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-02 12:32:50,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:32:50,045 INFO L93 Difference]: Finished difference Result 870 states and 1014 transitions. [2023-12-02 12:32:50,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-12-02 12:32:50,046 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 25 states have (on average 1.52) internal successors, (38), 25 states have internal predecessors, (38), 8 states have call successors, (8), 7 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 54 [2023-12-02 12:32:50,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:32:50,049 INFO L225 Difference]: With dead ends: 870 [2023-12-02 12:32:50,049 INFO L226 Difference]: Without dead ends: 462 [2023-12-02 12:32:50,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 124 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1419 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=597, Invalid=3959, Unknown=0, NotChecked=0, Total=4556 [2023-12-02 12:32:50,053 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 180 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 1912 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 2057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 1912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-02 12:32:50,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 519 Invalid, 2057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 1912 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-02 12:32:50,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2023-12-02 12:32:50,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 447. [2023-12-02 12:32:50,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 313 states have (on average 1.1980830670926517) internal successors, (375), 314 states have internal predecessors, (375), 71 states have call successors, (71), 63 states have call predecessors, (71), 62 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-02 12:32:50,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 516 transitions. [2023-12-02 12:32:50,115 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 516 transitions. Word has length 54 [2023-12-02 12:32:50,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:32:50,115 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 516 transitions. [2023-12-02 12:32:50,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 25 states have (on average 1.52) internal successors, (38), 25 states have internal predecessors, (38), 8 states have call successors, (8), 7 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-02 12:32:50,116 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 516 transitions. [2023-12-02 12:32:50,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 12:32:50,117 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:32:50,117 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:32:50,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 12:32:50,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:32:50,319 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:32:50,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:32:50,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1389927462, now seen corresponding path program 1 times [2023-12-02 12:32:50,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:32:50,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594107196] [2023-12-02 12:32:50,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:32:50,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:32:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:32:50,378 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 12:32:50,379 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:32:50,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594107196] [2023-12-02 12:32:50,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594107196] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:32:50,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:32:50,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:32:50,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38656362] [2023-12-02 12:32:50,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:32:50,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:32:50,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:32:50,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:32:50,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:32:50,381 INFO L87 Difference]: Start difference. First operand 447 states and 516 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-02 12:32:50,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:32:50,485 INFO L93 Difference]: Finished difference Result 892 states and 1042 transitions. [2023-12-02 12:32:50,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:32:50,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2023-12-02 12:32:50,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:32:50,490 INFO L225 Difference]: With dead ends: 892 [2023-12-02 12:32:50,490 INFO L226 Difference]: Without dead ends: 631 [2023-12-02 12:32:50,491 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 [2023-12-02 12:32:50,492 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 43 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:32:50,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 182 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 12:32:50,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2023-12-02 12:32:50,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 502. [2023-12-02 12:32:50,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 358 states have (on average 1.2122905027932962) internal successors, (434), 359 states have internal predecessors, (434), 76 states have call successors, (76), 68 states have call predecessors, (76), 67 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-12-02 12:32:50,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 585 transitions. [2023-12-02 12:32:50,558 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 585 transitions. Word has length 60 [2023-12-02 12:32:50,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:32:50,558 INFO L495 AbstractCegarLoop]: Abstraction has 502 states and 585 transitions. [2023-12-02 12:32:50,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-02 12:32:50,559 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 585 transitions. [2023-12-02 12:32:50,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 12:32:50,560 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:32:50,560 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:32:50,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 12:32:50,560 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:32:50,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:32:50,561 INFO L85 PathProgramCache]: Analyzing trace with hash 2067977750, now seen corresponding path program 1 times [2023-12-02 12:32:50,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:32:50,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635530382] [2023-12-02 12:32:50,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:32:50,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:32:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:32:50,722 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 12:32:50,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:32:50,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635530382] [2023-12-02 12:32:50,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635530382] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:32:50,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:32:50,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 12:32:50,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100132666] [2023-12-02 12:32:50,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:32:50,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 12:32:50,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:32:50,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 12:32:50,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-02 12:32:50,725 INFO L87 Difference]: Start difference. First operand 502 states and 585 transitions. Second operand has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-02 12:32:51,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:32:51,103 INFO L93 Difference]: Finished difference Result 1181 states and 1377 transitions. [2023-12-02 12:32:51,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 12:32:51,104 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 62 [2023-12-02 12:32:51,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:32:51,109 INFO L225 Difference]: With dead ends: 1181 [2023-12-02 12:32:51,109 INFO L226 Difference]: Without dead ends: 766 [2023-12-02 12:32:51,110 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 [2023-12-02 12:32:51,111 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 175 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 12:32:51,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 262 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 12:32:51,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2023-12-02 12:32:51,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 731. [2023-12-02 12:32:51,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 512 states have (on average 1.1953125) internal successors, (612), 513 states have internal predecessors, (612), 116 states have call successors, (116), 103 states have call predecessors, (116), 102 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2023-12-02 12:32:51,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 843 transitions. [2023-12-02 12:32:51,202 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 843 transitions. Word has length 62 [2023-12-02 12:32:51,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:32:51,202 INFO L495 AbstractCegarLoop]: Abstraction has 731 states and 843 transitions. [2023-12-02 12:32:51,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-02 12:32:51,203 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 843 transitions. [2023-12-02 12:32:51,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-02 12:32:51,204 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:32:51,204 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:32:51,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 12:32:51,204 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:32:51,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:32:51,205 INFO L85 PathProgramCache]: Analyzing trace with hash -143130135, now seen corresponding path program 1 times [2023-12-02 12:32:51,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:32:51,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104000891] [2023-12-02 12:32:51,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:32:51,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:32:51,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:32:51,316 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 12:32:51,317 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:32:51,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104000891] [2023-12-02 12:32:51,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104000891] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:32:51,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042908056] [2023-12-02 12:32:51,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:32:51,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:32:51,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:32:51,319 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:32:51,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 12:32:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:32:51,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 12:32:51,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:32:51,583 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 12:32:51,583 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:32:51,652 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 12:32:51,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042908056] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:32:51,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2133338990] [2023-12-02 12:32:51,656 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2023-12-02 12:32:51,656 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 12:32:51,656 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 12:32:51,656 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 12:32:51,657 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 12:32:53,688 INFO L197 IcfgInterpreter]: Interpreting procedure error with input of size 86 for LOIs [2023-12-02 12:32:53,770 INFO L197 IcfgInterpreter]: Interpreting procedure reset_delta_events with input of size 67 for LOIs [2023-12-02 12:32:53,792 INFO L197 IcfgInterpreter]: Interpreting procedure fire_delta_events with input of size 67 for LOIs [2023-12-02 12:32:53,816 INFO L197 IcfgInterpreter]: Interpreting procedure update_channels with input of size 74 for LOIs [2023-12-02 12:32:53,835 INFO L197 IcfgInterpreter]: Interpreting procedure exists_runnable_thread with input of size 36 for LOIs [2023-12-02 12:32:53,845 INFO L197 IcfgInterpreter]: Interpreting procedure activate_threads with input of size 71 for LOIs [2023-12-02 12:32:53,990 INFO L197 IcfgInterpreter]: Interpreting procedure is_do_write_p_triggered with input of size 67 for LOIs [2023-12-02 12:32:54,028 INFO L197 IcfgInterpreter]: Interpreting procedure is_do_read_c_triggered with input of size 67 for LOIs [2023-12-02 12:32:54,059 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 12:32:59,108 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12383#(and (= ~q_req_up~0 1) (= ~q_free~0 1) (not (= ~c_num_read~0 ~p_num_write~0)) (= ~c_last_read~0 ~q_buf_0~0) (= ~c_dr_pc~0 0) (exists ((|v_ULTIMATE.start_start_simulation_~kernel_st~0#1_BEFORE_CALL_36| Int) (v_~q_free~0_37 Int) (v_~c_last_read~0_12 Int) (|v_ULTIMATE.start_eval_~tmp___1~0#1_BEFORE_CALL_11| Int) (|v_ULTIMATE.start_eval_~tmp___0~2#1_BEFORE_CALL_11| Int) (v_~c_dr_st~0_55 Int)) (and (<= 0 (+ 2147483648 |v_ULTIMATE.start_eval_~tmp___0~2#1_BEFORE_CALL_11|)) (<= 1 |#StackHeapBarrier|) (<= ~q_buf_0~0 2147483647) (<= ~p_dw_pc~0 1) (= v_~c_last_read~0_12 0) (<= 0 ~p_dw_pc~0) (<= 0 ~p_num_write~0) (= 1 ~c_dr_i~0) (= |v_ULTIMATE.start_start_simulation_~kernel_st~0#1_BEFORE_CALL_36| 1) (= v_~c_dr_st~0_55 0) (= ~c_num_read~0 1) (<= 0 |v_ULTIMATE.start_eval_~tmp___1~0#1_BEFORE_CALL_11|) (<= ~p_num_write~0 1) (<= 0 (+ ~q_buf_0~0 2147483648)) (<= v_~q_free~0_37 1) (= ~p_dw_i~0 1) (not (= |v_ULTIMATE.start_eval_~tmp___0~2#1_BEFORE_CALL_11| 0)) (= ~a_t~0 0) (<= |v_ULTIMATE.start_eval_~tmp___1~0#1_BEFORE_CALL_11| 1) (<= |v_ULTIMATE.start_eval_~tmp___0~2#1_BEFORE_CALL_11| 2147483647) (<= 0 v_~q_free~0_37) (not (= v_~q_free~0_37 1)))) (= ~c_last_read~0 ~p_last_write~0) (= ~c_dr_st~0 1))' at error location [2023-12-02 12:32:59,108 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 12:32:59,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 12:32:59,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2023-12-02 12:32:59,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391057320] [2023-12-02 12:32:59,109 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 12:32:59,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 12:32:59,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:32:59,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 12:32:59,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=1749, Unknown=0, NotChecked=0, Total=1980 [2023-12-02 12:32:59,111 INFO L87 Difference]: Start difference. First operand 731 states and 843 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 6 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2023-12-02 12:32:59,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:32:59,546 INFO L93 Difference]: Finished difference Result 2048 states and 2377 transitions. [2023-12-02 12:32:59,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 12:32:59,547 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 6 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) Word has length 63 [2023-12-02 12:32:59,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:32:59,556 INFO L225 Difference]: With dead ends: 2048 [2023-12-02 12:32:59,556 INFO L226 Difference]: Without dead ends: 2045 [2023-12-02 12:32:59,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 145 SyntacticMatches, 4 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 970 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=231, Invalid=1749, Unknown=0, NotChecked=0, Total=1980 [2023-12-02 12:32:59,558 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 257 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 12:32:59,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 590 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 12:32:59,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2023-12-02 12:32:59,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 1455. [2023-12-02 12:32:59,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1014 states have (on average 1.2061143984220908) internal successors, (1223), 1015 states have internal predecessors, (1223), 234 states have call successors, (234), 207 states have call predecessors, (234), 206 states have return successors, (233), 233 states have call predecessors, (233), 233 states have call successors, (233) [2023-12-02 12:32:59,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1690 transitions. [2023-12-02 12:32:59,694 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1690 transitions. Word has length 63 [2023-12-02 12:32:59,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:32:59,694 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 1690 transitions. [2023-12-02 12:32:59,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 6 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2023-12-02 12:32:59,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1690 transitions. [2023-12-02 12:32:59,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 12:32:59,696 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:32:59,696 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:32:59,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 12:32:59,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:32:59,898 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:32:59,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:32:59,899 INFO L85 PathProgramCache]: Analyzing trace with hash 298214366, now seen corresponding path program 2 times [2023-12-02 12:32:59,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:32:59,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105123086] [2023-12-02 12:32:59,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:32:59,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:32:59,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:32:59,940 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 12:32:59,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:32:59,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105123086] [2023-12-02 12:32:59,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105123086] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:32:59,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:32:59,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:32:59,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169723757] [2023-12-02 12:32:59,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:32:59,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:32:59,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:32:59,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:32:59,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:32:59,942 INFO L87 Difference]: Start difference. First operand 1455 states and 1690 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-02 12:33:00,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:33:00,136 INFO L93 Difference]: Finished difference Result 2219 states and 2582 transitions. [2023-12-02 12:33:00,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:33:00,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2023-12-02 12:33:00,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:33:00,142 INFO L225 Difference]: With dead ends: 2219 [2023-12-02 12:33:00,142 INFO L226 Difference]: Without dead ends: 1053 [2023-12-02 12:33:00,145 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 [2023-12-02 12:33:00,145 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 65 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:33:00,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 187 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 12:33:00,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2023-12-02 12:33:00,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 1039. [2023-12-02 12:33:00,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1039 states, 726 states have (on average 1.184573002754821) internal successors, (860), 727 states have internal predecessors, (860), 166 states have call successors, (166), 147 states have call predecessors, (166), 146 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2023-12-02 12:33:00,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1191 transitions. [2023-12-02 12:33:00,291 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1191 transitions. Word has length 66 [2023-12-02 12:33:00,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:33:00,291 INFO L495 AbstractCegarLoop]: Abstraction has 1039 states and 1191 transitions. [2023-12-02 12:33:00,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-02 12:33:00,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1191 transitions. [2023-12-02 12:33:00,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 12:33:00,293 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:33:00,294 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:33:00,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 12:33:00,294 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:33:00,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:33:00,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1055940592, now seen corresponding path program 1 times [2023-12-02 12:33:00,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:33:00,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473238794] [2023-12-02 12:33:00,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:33:00,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:33:00,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:33:00,347 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 12:33:00,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:33:00,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473238794] [2023-12-02 12:33:00,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473238794] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:33:00,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:33:00,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:33:00,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125534453] [2023-12-02 12:33:00,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:33:00,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:33:00,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:33:00,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:33:00,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:33:00,349 INFO L87 Difference]: Start difference. First operand 1039 states and 1191 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-02 12:33:00,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:33:00,534 INFO L93 Difference]: Finished difference Result 2066 states and 2383 transitions. [2023-12-02 12:33:00,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:33:00,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2023-12-02 12:33:00,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:33:00,542 INFO L225 Difference]: With dead ends: 2066 [2023-12-02 12:33:00,542 INFO L226 Difference]: Without dead ends: 1213 [2023-12-02 12:33:00,544 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 [2023-12-02 12:33:00,545 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 38 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:33:00,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 175 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 12:33:00,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2023-12-02 12:33:00,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1084. [2023-12-02 12:33:00,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 763 states have (on average 1.182175622542595) internal successors, (902), 764 states have internal predecessors, (902), 170 states have call successors, (170), 151 states have call predecessors, (170), 150 states have return successors, (169), 169 states have call predecessors, (169), 169 states have call successors, (169) [2023-12-02 12:33:00,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1241 transitions. [2023-12-02 12:33:00,718 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1241 transitions. Word has length 70 [2023-12-02 12:33:00,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:33:00,718 INFO L495 AbstractCegarLoop]: Abstraction has 1084 states and 1241 transitions. [2023-12-02 12:33:00,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-02 12:33:00,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1241 transitions. [2023-12-02 12:33:00,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-02 12:33:00,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:33:00,720 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:33:00,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 12:33:00,720 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:33:00,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:33:00,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1509618852, now seen corresponding path program 1 times [2023-12-02 12:33:00,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:33:00,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230753797] [2023-12-02 12:33:00,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:33:00,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:33:00,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:33:01,081 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 15 proven. 14 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 12:33:01,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:33:01,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230753797] [2023-12-02 12:33:01,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230753797] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:33:01,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671913270] [2023-12-02 12:33:01,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:33:01,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:33:01,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:33:01,083 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:33:01,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 12:33:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:33:01,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 12:33:01,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:33:01,232 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 12:33:01,232 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 12:33:01,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671913270] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:33:01,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 12:33:01,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 17 [2023-12-02 12:33:01,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970794088] [2023-12-02 12:33:01,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:33:01,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 12:33:01,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:33:01,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 12:33:01,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2023-12-02 12:33:01,235 INFO L87 Difference]: Start difference. First operand 1084 states and 1241 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-02 12:33:01,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:33:01,441 INFO L93 Difference]: Finished difference Result 1969 states and 2295 transitions. [2023-12-02 12:33:01,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 12:33:01,442 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 101 [2023-12-02 12:33:01,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:33:01,447 INFO L225 Difference]: With dead ends: 1969 [2023-12-02 12:33:01,448 INFO L226 Difference]: Without dead ends: 913 [2023-12-02 12:33:01,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2023-12-02 12:33:01,451 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 57 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:33:01,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 440 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:33:01,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2023-12-02 12:33:01,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 716. [2023-12-02 12:33:01,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 527 states have (on average 1.1821631878557874) internal successors, (623), 528 states have internal predecessors, (623), 99 states have call successors, (99), 90 states have call predecessors, (99), 89 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-02 12:33:01,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 820 transitions. [2023-12-02 12:33:01,619 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 820 transitions. Word has length 101 [2023-12-02 12:33:01,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:33:01,620 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 820 transitions. [2023-12-02 12:33:01,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-02 12:33:01,620 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 820 transitions. [2023-12-02 12:33:01,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 12:33:01,622 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:33:01,623 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:33:01,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 12:33:01,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-02 12:33:01,824 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:33:01,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:33:01,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1103083302, now seen corresponding path program 1 times [2023-12-02 12:33:01,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:33:01,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591145035] [2023-12-02 12:33:01,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:33:01,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:33:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:33:02,018 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 25 proven. 7 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-02 12:33:02,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:33:02,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591145035] [2023-12-02 12:33:02,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591145035] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:33:02,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083585881] [2023-12-02 12:33:02,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:33:02,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:33:02,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:33:02,020 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:33:02,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 12:33:02,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:33:02,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 12:33:02,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:33:02,204 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 12:33:02,204 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 12:33:02,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083585881] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:33:02,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 12:33:02,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2023-12-02 12:33:02,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408077172] [2023-12-02 12:33:02,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:33:02,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 12:33:02,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:33:02,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 12:33:02,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-12-02 12:33:02,207 INFO L87 Difference]: Start difference. First operand 716 states and 820 transitions. Second operand has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-02 12:33:02,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:33:02,454 INFO L93 Difference]: Finished difference Result 1290 states and 1488 transitions. [2023-12-02 12:33:02,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 12:33:02,454 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 111 [2023-12-02 12:33:02,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:33:02,458 INFO L225 Difference]: With dead ends: 1290 [2023-12-02 12:33:02,458 INFO L226 Difference]: Without dead ends: 670 [2023-12-02 12:33:02,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2023-12-02 12:33:02,461 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 63 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:33:02,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 588 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:33:02,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2023-12-02 12:33:02,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 578. [2023-12-02 12:33:02,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 425 states have (on average 1.1764705882352942) internal successors, (500), 426 states have internal predecessors, (500), 80 states have call successors, (80), 73 states have call predecessors, (80), 72 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2023-12-02 12:33:02,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 659 transitions. [2023-12-02 12:33:02,554 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 659 transitions. Word has length 111 [2023-12-02 12:33:02,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:33:02,555 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 659 transitions. [2023-12-02 12:33:02,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-02 12:33:02,555 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 659 transitions. [2023-12-02 12:33:02,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-02 12:33:02,557 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:33:02,557 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:33:02,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 12:33:02,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:33:02,765 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:33:02,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:33:02,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1607315260, now seen corresponding path program 1 times [2023-12-02 12:33:02,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:33:02,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858162260] [2023-12-02 12:33:02,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:33:02,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:33:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:33:02,905 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 12:33:02,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:33:02,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858162260] [2023-12-02 12:33:02,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858162260] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:33:02,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192753427] [2023-12-02 12:33:02,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:33:02,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:33:02,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:33:02,907 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:33:02,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 12:33:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:33:03,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 12:33:03,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:33:03,058 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 12:33:03,058 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 12:33:03,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192753427] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:33:03,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 12:33:03,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 8 [2023-12-02 12:33:03,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966642141] [2023-12-02 12:33:03,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:33:03,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 12:33:03,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:33:03,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 12:33:03,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-02 12:33:03,060 INFO L87 Difference]: Start difference. First operand 578 states and 659 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 12:33:03,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:33:03,229 INFO L93 Difference]: Finished difference Result 1337 states and 1533 transitions. [2023-12-02 12:33:03,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 12:33:03,230 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 112 [2023-12-02 12:33:03,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:33:03,235 INFO L225 Difference]: With dead ends: 1337 [2023-12-02 12:33:03,235 INFO L226 Difference]: Without dead ends: 870 [2023-12-02 12:33:03,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-12-02 12:33:03,237 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 43 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:33:03,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 501 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:33:03,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2023-12-02 12:33:03,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 836. [2023-12-02 12:33:03,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 587 states have (on average 1.1686541737649063) internal successors, (686), 594 states have internal predecessors, (686), 128 states have call successors, (128), 115 states have call predecessors, (128), 120 states have return successors, (139), 127 states have call predecessors, (139), 127 states have call successors, (139) [2023-12-02 12:33:03,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 953 transitions. [2023-12-02 12:33:03,320 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 953 transitions. Word has length 112 [2023-12-02 12:33:03,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:33:03,320 INFO L495 AbstractCegarLoop]: Abstraction has 836 states and 953 transitions. [2023-12-02 12:33:03,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 12:33:03,320 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 953 transitions. [2023-12-02 12:33:03,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-02 12:33:03,321 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:33:03,322 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:33:03,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-02 12:33:03,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-12-02 12:33:03,522 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:33:03,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:33:03,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1730723653, now seen corresponding path program 1 times [2023-12-02 12:33:03,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:33:03,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752618561] [2023-12-02 12:33:03,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:33:03,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:33:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:33:03,579 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-02 12:33:03,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:33:03,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752618561] [2023-12-02 12:33:03,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752618561] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:33:03,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:33:03,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 12:33:03,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246914896] [2023-12-02 12:33:03,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:33:03,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 12:33:03,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:33:03,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 12:33:03,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 12:33:03,581 INFO L87 Difference]: Start difference. First operand 836 states and 953 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-02 12:33:03,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:33:03,766 INFO L93 Difference]: Finished difference Result 1560 states and 1811 transitions. [2023-12-02 12:33:03,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 12:33:03,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 112 [2023-12-02 12:33:03,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:33:03,770 INFO L225 Difference]: With dead ends: 1560 [2023-12-02 12:33:03,770 INFO L226 Difference]: Without dead ends: 835 [2023-12-02 12:33:03,772 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 [2023-12-02 12:33:03,773 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 112 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:33:03,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 179 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:33:03,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2023-12-02 12:33:03,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 828. [2023-12-02 12:33:03,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 579 states have (on average 1.1381692573402418) internal successors, (659), 586 states have internal predecessors, (659), 128 states have call successors, (128), 115 states have call predecessors, (128), 120 states have return successors, (139), 127 states have call predecessors, (139), 127 states have call successors, (139) [2023-12-02 12:33:03,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 926 transitions. [2023-12-02 12:33:03,916 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 926 transitions. Word has length 112 [2023-12-02 12:33:03,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:33:03,916 INFO L495 AbstractCegarLoop]: Abstraction has 828 states and 926 transitions. [2023-12-02 12:33:03,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-02 12:33:03,916 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 926 transitions. [2023-12-02 12:33:03,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-02 12:33:03,918 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:33:03,918 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:33:03,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-02 12:33:03,919 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:33:03,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:33:03,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1501600620, now seen corresponding path program 1 times [2023-12-02 12:33:03,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:33:03,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807706654] [2023-12-02 12:33:03,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:33:03,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:33:03,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:33:04,980 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 20 proven. 16 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 12:33:04,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:33:04,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807706654] [2023-12-02 12:33:04,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807706654] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:33:04,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54509051] [2023-12-02 12:33:04,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:33:04,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:33:04,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:33:04,982 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:33:04,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 12:33:05,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:33:05,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 59 conjunts are in the unsatisfiable core [2023-12-02 12:33:05,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:33:05,898 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 31 proven. 24 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 12:33:05,898 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:33:07,402 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 22 proven. 13 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 12:33:07,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54509051] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:33:07,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [824577665] [2023-12-02 12:33:07,405 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2023-12-02 12:33:07,405 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 12:33:07,405 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 12:33:07,405 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 12:33:07,405 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 12:33:13,358 INFO L197 IcfgInterpreter]: Interpreting procedure error with input of size 28 for LOIs [2023-12-02 12:33:13,361 INFO L197 IcfgInterpreter]: Interpreting procedure reset_delta_events with input of size 11 for LOIs [2023-12-02 12:33:13,363 INFO L197 IcfgInterpreter]: Interpreting procedure fire_delta_events with input of size 77 for LOIs [2023-12-02 12:33:13,390 INFO L197 IcfgInterpreter]: Interpreting procedure update_channels with input of size 88 for LOIs [2023-12-02 12:33:13,431 INFO L197 IcfgInterpreter]: Interpreting procedure exists_runnable_thread with input of size 11 for LOIs [2023-12-02 12:33:13,435 INFO L197 IcfgInterpreter]: Interpreting procedure activate_threads with input of size 83 for LOIs [2023-12-02 12:33:13,622 INFO L197 IcfgInterpreter]: Interpreting procedure is_do_write_p_triggered with input of size 84 for LOIs [2023-12-02 12:33:13,787 INFO L197 IcfgInterpreter]: Interpreting procedure is_do_read_c_triggered with input of size 20 for LOIs [2023-12-02 12:33:13,813 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 12:33:19,842 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '40004#(and (= ~q_req_up~0 1) (<= ~p_dw_pc~0 1) (<= 0 ~c_dr_pc~0) (<= 0 ~p_dw_st~0) (<= 0 ~p_dw_pc~0) (= ~q_free~0 1) (<= ~c_dr_pc~0 1) (<= ~p_dw_st~0 2) (not (= ~c_num_read~0 ~p_num_write~0)) (= ~c_last_read~0 ~q_buf_0~0) (= ~c_last_read~0 ~p_last_write~0) (= ~c_dr_st~0 1))' at error location [2023-12-02 12:33:19,843 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 12:33:19,843 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 12:33:19,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 16, 16] total 55 [2023-12-02 12:33:19,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940968812] [2023-12-02 12:33:19,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 12:33:19,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2023-12-02 12:33:19,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:33:19,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2023-12-02 12:33:19,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=819, Invalid=10737, Unknown=0, NotChecked=0, Total=11556 [2023-12-02 12:33:19,850 INFO L87 Difference]: Start difference. First operand 828 states and 926 transitions. Second operand has 55 states, 35 states have (on average 5.514285714285714) internal successors, (193), 38 states have internal predecessors, (193), 19 states have call successors, (43), 17 states have call predecessors, (43), 23 states have return successors, (45), 20 states have call predecessors, (45), 19 states have call successors, (45) [2023-12-02 12:33:30,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:33:30,169 INFO L93 Difference]: Finished difference Result 3382 states and 4025 transitions. [2023-12-02 12:33:30,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2023-12-02 12:33:30,169 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 35 states have (on average 5.514285714285714) internal successors, (193), 38 states have internal predecessors, (193), 19 states have call successors, (43), 17 states have call predecessors, (43), 23 states have return successors, (45), 20 states have call predecessors, (45), 19 states have call successors, (45) Word has length 113 [2023-12-02 12:33:30,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:33:30,184 INFO L225 Difference]: With dead ends: 3382 [2023-12-02 12:33:30,184 INFO L226 Difference]: Without dead ends: 2667 [2023-12-02 12:33:30,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 281 SyntacticMatches, 3 SemanticMatches, 292 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 33731 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=8454, Invalid=77688, Unknown=0, NotChecked=0, Total=86142 [2023-12-02 12:33:30,205 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 2951 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 3864 mSolverCounterSat, 1567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2954 SdHoareTripleChecker+Valid, 2512 SdHoareTripleChecker+Invalid, 5431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1567 IncrementalHoareTripleChecker+Valid, 3864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-02 12:33:30,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2954 Valid, 2512 Invalid, 5431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1567 Valid, 3864 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-02 12:33:30,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2023-12-02 12:33:30,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 1104. [2023-12-02 12:33:30,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 763 states have (on average 1.1402359108781128) internal successors, (870), 772 states have internal predecessors, (870), 173 states have call successors, (173), 152 states have call predecessors, (173), 167 states have return successors, (196), 180 states have call predecessors, (196), 172 states have call successors, (196) [2023-12-02 12:33:30,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1239 transitions. [2023-12-02 12:33:30,461 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1239 transitions. Word has length 113 [2023-12-02 12:33:30,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:33:30,462 INFO L495 AbstractCegarLoop]: Abstraction has 1104 states and 1239 transitions. [2023-12-02 12:33:30,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 35 states have (on average 5.514285714285714) internal successors, (193), 38 states have internal predecessors, (193), 19 states have call successors, (43), 17 states have call predecessors, (43), 23 states have return successors, (45), 20 states have call predecessors, (45), 19 states have call successors, (45) [2023-12-02 12:33:30,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1239 transitions. [2023-12-02 12:33:30,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-02 12:33:30,464 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:33:30,464 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:33:30,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 12:33:30,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-02 12:33:30,665 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:33:30,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:33:30,665 INFO L85 PathProgramCache]: Analyzing trace with hash 966073292, now seen corresponding path program 1 times [2023-12-02 12:33:30,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:33:30,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819916749] [2023-12-02 12:33:30,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:33:30,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:33:30,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:33:30,981 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 23 proven. 10 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-02 12:33:30,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:33:30,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819916749] [2023-12-02 12:33:30,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819916749] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:33:30,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563808764] [2023-12-02 12:33:30,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:33:30,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:33:30,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:33:30,984 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:33:30,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 12:33:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:33:31,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 12:33:31,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:33:31,149 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 12:33:31,149 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:33:31,276 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-02 12:33:31,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563808764] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 12:33:31,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 12:33:31,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14, 8] total 20 [2023-12-02 12:33:31,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060956917] [2023-12-02 12:33:31,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:33:31,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 12:33:31,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:33:31,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 12:33:31,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2023-12-02 12:33:31,278 INFO L87 Difference]: Start difference. First operand 1104 states and 1239 transitions. Second operand has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-02 12:33:31,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:33:31,760 INFO L93 Difference]: Finished difference Result 2428 states and 2787 transitions. [2023-12-02 12:33:31,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-02 12:33:31,761 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 114 [2023-12-02 12:33:31,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:33:31,766 INFO L225 Difference]: With dead ends: 2428 [2023-12-02 12:33:31,766 INFO L226 Difference]: Without dead ends: 1437 [2023-12-02 12:33:31,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=552, Unknown=0, NotChecked=0, Total=650 [2023-12-02 12:33:31,768 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 110 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 12:33:31,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 413 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 12:33:31,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2023-12-02 12:33:32,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 1184. [2023-12-02 12:33:32,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1184 states, 808 states have (on average 1.1398514851485149) internal successors, (921), 820 states have internal predecessors, (921), 192 states have call successors, (192), 161 states have call predecessors, (192), 183 states have return successors, (236), 203 states have call predecessors, (236), 191 states have call successors, (236) [2023-12-02 12:33:32,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1349 transitions. [2023-12-02 12:33:32,025 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1349 transitions. Word has length 114 [2023-12-02 12:33:32,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:33:32,026 INFO L495 AbstractCegarLoop]: Abstraction has 1184 states and 1349 transitions. [2023-12-02 12:33:32,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-02 12:33:32,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1349 transitions. [2023-12-02 12:33:32,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-02 12:33:32,029 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:33:32,029 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:33:32,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-02 12:33:32,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-02 12:33:32,230 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:33:32,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:33:32,230 INFO L85 PathProgramCache]: Analyzing trace with hash -2111532289, now seen corresponding path program 1 times [2023-12-02 12:33:32,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:33:32,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725258326] [2023-12-02 12:33:32,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:33:32,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:33:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:33:32,921 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 34 proven. 25 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 12:33:32,922 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:33:32,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725258326] [2023-12-02 12:33:32,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725258326] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:33:32,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419122739] [2023-12-02 12:33:32,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:33:32,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:33:32,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:33:32,923 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:33:32,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 12:33:33,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:33:33,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 62 conjunts are in the unsatisfiable core [2023-12-02 12:33:33,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:33:33,709 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 60 proven. 23 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 12:33:33,709 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:33:35,244 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 13 proven. 44 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 12:33:35,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419122739] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:33:35,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [761460186] [2023-12-02 12:33:35,248 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2023-12-02 12:33:35,248 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 12:33:35,249 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 12:33:35,249 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 12:33:35,249 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 12:33:39,801 INFO L197 IcfgInterpreter]: Interpreting procedure error with input of size 24 for LOIs [2023-12-02 12:33:39,804 INFO L197 IcfgInterpreter]: Interpreting procedure reset_delta_events with input of size 1 for LOIs [2023-12-02 12:33:39,806 INFO L197 IcfgInterpreter]: Interpreting procedure fire_delta_events with input of size 69 for LOIs [2023-12-02 12:33:39,833 INFO L197 IcfgInterpreter]: Interpreting procedure update_channels with input of size 80 for LOIs [2023-12-02 12:33:39,869 INFO L197 IcfgInterpreter]: Interpreting procedure exists_runnable_thread with input of size 1 for LOIs [2023-12-02 12:33:39,872 INFO L197 IcfgInterpreter]: Interpreting procedure activate_threads with input of size 75 for LOIs [2023-12-02 12:33:39,972 INFO L197 IcfgInterpreter]: Interpreting procedure is_do_write_p_triggered with input of size 69 for LOIs [2023-12-02 12:33:40,028 INFO L197 IcfgInterpreter]: Interpreting procedure is_do_read_c_triggered with input of size 11 for LOIs [2023-12-02 12:33:40,045 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 12:33:43,896 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '52948#(and (= ~q_req_up~0 1) (<= 0 ~p_dw_st~0) (= ~q_free~0 1) (<= ~p_dw_st~0 2) (= ~c_dr_pc~0 1) (not (= ~c_num_read~0 ~p_num_write~0)) (= ~c_last_read~0 ~q_buf_0~0) (= ~c_last_read~0 ~p_last_write~0) (= ~c_dr_st~0 1))' at error location [2023-12-02 12:33:43,897 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 12:33:43,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 12:33:43,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 17, 18] total 55 [2023-12-02 12:33:43,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935017720] [2023-12-02 12:33:43,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 12:33:43,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2023-12-02 12:33:43,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:33:43,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2023-12-02 12:33:43,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=827, Invalid=10515, Unknown=0, NotChecked=0, Total=11342 [2023-12-02 12:33:43,900 INFO L87 Difference]: Start difference. First operand 1184 states and 1349 transitions. Second operand has 55 states, 36 states have (on average 5.861111111111111) internal successors, (211), 39 states have internal predecessors, (211), 24 states have call successors, (48), 18 states have call predecessors, (48), 22 states have return successors, (50), 24 states have call predecessors, (50), 24 states have call successors, (50) [2023-12-02 12:33:52,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:33:52,487 INFO L93 Difference]: Finished difference Result 4316 states and 5028 transitions. [2023-12-02 12:33:52,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2023-12-02 12:33:52,488 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 36 states have (on average 5.861111111111111) internal successors, (211), 39 states have internal predecessors, (211), 24 states have call successors, (48), 18 states have call predecessors, (48), 22 states have return successors, (50), 24 states have call predecessors, (50), 24 states have call successors, (50) Word has length 123 [2023-12-02 12:33:52,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:33:52,500 INFO L225 Difference]: With dead ends: 4316 [2023-12-02 12:33:52,501 INFO L226 Difference]: Without dead ends: 3245 [2023-12-02 12:33:52,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 310 SyntacticMatches, 8 SemanticMatches, 239 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21312 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=6572, Invalid=51268, Unknown=0, NotChecked=0, Total=57840 [2023-12-02 12:33:52,508 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 2440 mSDsluCounter, 2002 mSDsCounter, 0 mSdLazyCounter, 3796 mSolverCounterSat, 1501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2440 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 5297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1501 IncrementalHoareTripleChecker+Valid, 3796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-02 12:33:52,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2440 Valid, 2093 Invalid, 5297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1501 Valid, 3796 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-02 12:33:52,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3245 states. [2023-12-02 12:33:52,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3245 to 1665. [2023-12-02 12:33:52,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1665 states, 1154 states have (on average 1.1455805892547661) internal successors, (1322), 1170 states have internal predecessors, (1322), 258 states have call successors, (258), 216 states have call predecessors, (258), 252 states have return successors, (318), 279 states have call predecessors, (318), 257 states have call successors, (318) [2023-12-02 12:33:52,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1665 states to 1665 states and 1898 transitions. [2023-12-02 12:33:52,920 INFO L78 Accepts]: Start accepts. Automaton has 1665 states and 1898 transitions. Word has length 123 [2023-12-02 12:33:52,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:33:52,920 INFO L495 AbstractCegarLoop]: Abstraction has 1665 states and 1898 transitions. [2023-12-02 12:33:52,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 36 states have (on average 5.861111111111111) internal successors, (211), 39 states have internal predecessors, (211), 24 states have call successors, (48), 18 states have call predecessors, (48), 22 states have return successors, (50), 24 states have call predecessors, (50), 24 states have call successors, (50) [2023-12-02 12:33:52,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1665 states and 1898 transitions. [2023-12-02 12:33:52,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-02 12:33:52,922 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:33:52,922 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:33:52,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-02 12:33:53,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-02 12:33:53,123 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:33:53,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:33:53,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1559294944, now seen corresponding path program 1 times [2023-12-02 12:33:53,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:33:53,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158327981] [2023-12-02 12:33:53,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:33:53,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:33:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:33:53,309 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 38 proven. 9 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-12-02 12:33:53,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:33:53,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158327981] [2023-12-02 12:33:53,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158327981] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:33:53,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689358484] [2023-12-02 12:33:53,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:33:53,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:33:53,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:33:53,311 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:33:53,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-02 12:33:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:33:53,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 12:33:53,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:33:53,569 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 50 proven. 17 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-02 12:33:53,569 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:33:53,734 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-02 12:33:53,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689358484] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 12:33:53,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 12:33:53,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 10] total 17 [2023-12-02 12:33:53,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124848346] [2023-12-02 12:33:53,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:33:53,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 12:33:53,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:33:53,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 12:33:53,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2023-12-02 12:33:53,736 INFO L87 Difference]: Start difference. First operand 1665 states and 1898 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-02 12:33:54,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:33:54,342 INFO L93 Difference]: Finished difference Result 2640 states and 3005 transitions. [2023-12-02 12:33:54,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 12:33:54,343 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 124 [2023-12-02 12:33:54,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:33:54,349 INFO L225 Difference]: With dead ends: 2640 [2023-12-02 12:33:54,349 INFO L226 Difference]: Without dead ends: 1088 [2023-12-02 12:33:54,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=491, Unknown=0, NotChecked=0, Total=600 [2023-12-02 12:33:54,352 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 175 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 12:33:54,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 333 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 12:33:54,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2023-12-02 12:33:54,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 739. [2023-12-02 12:33:54,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 501 states have (on average 1.1017964071856288) internal successors, (552), 514 states have internal predecessors, (552), 118 states have call successors, (118), 101 states have call predecessors, (118), 119 states have return successors, (147), 124 states have call predecessors, (147), 117 states have call successors, (147) [2023-12-02 12:33:54,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 817 transitions. [2023-12-02 12:33:54,493 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 817 transitions. Word has length 124 [2023-12-02 12:33:54,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:33:54,494 INFO L495 AbstractCegarLoop]: Abstraction has 739 states and 817 transitions. [2023-12-02 12:33:54,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-02 12:33:54,494 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 817 transitions. [2023-12-02 12:33:54,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-12-02 12:33:54,497 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:33:54,497 INFO L195 NwaCegarLoop]: trace histogram [10, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:33:54,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-02 12:33:54,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:33:54,698 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:33:54,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:33:54,698 INFO L85 PathProgramCache]: Analyzing trace with hash 207816260, now seen corresponding path program 1 times [2023-12-02 12:33:54,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:33:54,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631135791] [2023-12-02 12:33:54,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:33:54,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:33:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:33:55,262 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 117 proven. 48 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2023-12-02 12:33:55,262 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:33:55,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631135791] [2023-12-02 12:33:55,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631135791] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:33:55,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606504171] [2023-12-02 12:33:55,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:33:55,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:33:55,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:33:55,264 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:33:55,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-02 12:33:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:33:55,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 12:33:55,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:33:55,526 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-02 12:33:55,526 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 12:33:55,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606504171] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:33:55,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 12:33:55,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [19] total 26 [2023-12-02 12:33:55,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981867245] [2023-12-02 12:33:55,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:33:55,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 12:33:55,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:33:55,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 12:33:55,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2023-12-02 12:33:55,528 INFO L87 Difference]: Start difference. First operand 739 states and 817 transitions. Second operand has 9 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 3 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 5 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-02 12:33:55,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:33:55,763 INFO L93 Difference]: Finished difference Result 986 states and 1089 transitions. [2023-12-02 12:33:55,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-02 12:33:55,764 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 3 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 5 states have call predecessors, (22), 3 states have call successors, (22) Word has length 219 [2023-12-02 12:33:55,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:33:55,764 INFO L225 Difference]: With dead ends: 986 [2023-12-02 12:33:55,765 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 12:33:55,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=782, Unknown=0, NotChecked=0, Total=870 [2023-12-02 12:33:55,767 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 43 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:33:55,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 679 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:33:55,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 12:33:55,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 12:33:55,768 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) [2023-12-02 12:33:55,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 12:33:55,768 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 219 [2023-12-02 12:33:55,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:33:55,769 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 12:33:55,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 3 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 5 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-02 12:33:55,769 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 12:33:55,769 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 12:33:55,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 12:33:55,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-02 12:33:55,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:33:55,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 12:34:37,589 INFO L899 garLoopResultBuilder]: For program point L321(line 321) no Hoare annotation was computed. [2023-12-02 12:34:37,590 INFO L895 garLoopResultBuilder]: At program point L313(line 313) 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)|))) (.cse2 (not (= ~p_dw_pc~0 1))) (.cse3 (not (= ~c_dr_pc~0 1))) (.cse4 (= ~q_read_ev~0 0)) (.cse7 (= |old(~c_dr_st~0)| 0)) (.cse1 (not (= ~p_last_write~0 ~q_buf_0~0))) (.cse5 (not (= ~p_dw_i~0 1))) (.cse6 (not (= ~q_free~0 1))) (.cse9 (= |old(~p_dw_st~0)| 0)) (.cse8 (not (= 1 ~c_dr_i~0)))) (and (or .cse0 .cse1 .cse2 (not (= ~c_num_read~0 ~p_num_write~0)) (= ~q_write_ev~0 0) .cse3 .cse4 .cse5 .cse6 .cse7 (= ~q_write_ev~0 1) .cse8) (or .cse9 (= ~q_read_ev~0 1) .cse0 .cse1 (not (= ~q_free~0 0)) .cse2 .cse3 .cse4 .cse5 (not (= (+ ~c_num_read~0 1) ~p_num_write~0)) .cse8) (let ((.cse10 (select |#memory_int| 1))) (or (not (= ~a_t~0 0)) (not (= ~q_req_up~0 0)) (not .cse7) (not (= (select .cse10 0) 48)) (not (= 2 (select |#length| 1))) (not (= ~c_dr_pc~0 0)) (not (= (select |#valid| 3) 1)) (not (= ~p_num_write~0 0)) (not (= ~p_dw_pc~0 0)) (not (= (select |#length| 3) 12)) .cse1 (not (= (select |#valid| 0) 0)) (not (= (select .cse10 1) 0)) (not (= ~c_num_read~0 0)) (not (= (select |#valid| 1) 1)) (not (= 19 (select |#length| 2))) (not (= ~q_write_ev~0 2)) (< |#StackHeapBarrier| 1) .cse5 (not (= (select |#valid| 2) 1)) .cse6 (not .cse9) (not (= ~q_read_ev~0 2)) (not (= ~c_last_read~0 ~p_last_write~0)) (not (= ~p_last_write~0 0)) (and (= ~c_dr_st~0 0) (= ~p_dw_st~0 0)) .cse8)))) [2023-12-02 12:34:37,590 INFO L895 garLoopResultBuilder]: At program point L315-2(lines 315 319) the Hoare annotation is: (let ((.cse13 (= 1 ~c_dr_i~0)) (.cse20 (= ~q_write_ev~0 1)) (.cse17 (= ~q_write_ev~0 0)) (.cse12 (= ~q_free~0 1)) (.cse15 (= ~p_dw_i~0 1)) (.cse14 (= ~c_dr_pc~0 1)) (.cse22 (= ~p_dw_pc~0 1)) (.cse11 (= ~p_last_write~0 ~q_buf_0~0)) (.cse23 (= ~p_dw_st~0 0)) (.cse0 (= |old(~p_dw_st~0)| 0))) (let ((.cse5 (or (not .cse23) .cse0)) (.cse1 (= ~q_read_ev~0 1)) (.cse2 (not .cse11)) (.cse3 (not .cse22)) (.cse10 (not (= ~c_num_read~0 ~p_num_write~0))) (.cse16 (< ~p_dw_pc~0 1)) (.cse6 (not .cse14)) (.cse7 (= ~q_read_ev~0 0)) (.cse8 (not .cse15)) (.cse18 (not .cse12)) (.cse19 (= |old(~c_dr_st~0)| 0)) (.cse26 (not .cse0)) (.cse21 (not .cse17)) (.cse4 (= ~c_dr_st~0 |old(~c_dr_st~0)|)) (.cse24 (not .cse20)) (.cse9 (not .cse13))) (and (or .cse0 .cse1 .cse2 (not (= ~q_free~0 0)) .cse3 (and .cse4 .cse5) .cse6 .cse7 .cse8 (not (= (+ ~c_num_read~0 1) ~p_num_write~0)) .cse9) (or .cse2 .cse3 .cse10 (and (not .cse1) .cse11 .cse12 .cse4 .cse13 .cse14 .cse5 .cse15) .cse16 .cse17 .cse6 .cse7 .cse8 .cse18 .cse19 .cse20 (and .cse11 .cse21 .cse12 .cse1 .cse4 .cse13 .cse14 .cse22 .cse23 .cse15 .cse24) .cse9) (let ((.cse25 (select |#memory_int| 1))) (or (not (= ~a_t~0 0)) (not (= ~q_req_up~0 0)) (not .cse19) (not (= (select .cse25 0) 48)) (not (= 2 (select |#length| 1))) (not (= ~c_dr_pc~0 0)) (not (= (select |#valid| 3) 1)) (not (= ~p_num_write~0 0)) (not (= ~p_dw_pc~0 0)) (not (= (select |#length| 3) 12)) .cse2 (not (= (select |#valid| 0) 0)) (and (= ~c_dr_st~0 0) (= activate_threads_~tmp~1 0) .cse23) (not (= (select .cse25 1) 0)) (not (= ~c_num_read~0 0)) (not (= (select |#valid| 1) 1)) (not (= 19 (select |#length| 2))) (not (= ~q_write_ev~0 2)) (< |#StackHeapBarrier| 1) .cse8 (not (= (select |#valid| 2) 1)) .cse18 .cse26 (not (= ~q_read_ev~0 2)) (not (= ~c_last_read~0 ~p_last_write~0)) (not (= ~p_last_write~0 0)) .cse9)) (or .cse2 .cse3 .cse10 .cse16 .cse17 .cse6 .cse7 .cse8 .cse18 .cse19 .cse26 .cse20 (and .cse11 .cse21 .cse12 .cse4 .cse13 .cse14 .cse22 .cse23 .cse15 .cse24) .cse9)))) [2023-12-02 12:34:37,590 INFO L899 garLoopResultBuilder]: For program point L313-1(line 313) no Hoare annotation was computed. [2023-12-02 12:34:37,590 INFO L899 garLoopResultBuilder]: For program point activate_threadsEXIT(lines 307 331) no Hoare annotation was computed. [2023-12-02 12:34:37,591 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 307 331) 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)|))) (.cse2 (not (= ~p_dw_pc~0 1))) (.cse3 (not (= ~c_dr_pc~0 1))) (.cse4 (= ~q_read_ev~0 0)) (.cse7 (= |old(~c_dr_st~0)| 0)) (.cse1 (not (= ~p_last_write~0 ~q_buf_0~0))) (.cse5 (not (= ~p_dw_i~0 1))) (.cse6 (not (= ~q_free~0 1))) (.cse9 (= |old(~p_dw_st~0)| 0)) (.cse8 (not (= 1 ~c_dr_i~0)))) (and (or .cse0 .cse1 .cse2 (not (= ~c_num_read~0 ~p_num_write~0)) (= ~q_write_ev~0 0) .cse3 .cse4 .cse5 .cse6 .cse7 (= ~q_write_ev~0 1) .cse8) (or .cse9 (= ~q_read_ev~0 1) .cse0 .cse1 (not (= ~q_free~0 0)) .cse2 .cse3 .cse4 .cse5 (not (= (+ ~c_num_read~0 1) ~p_num_write~0)) .cse8) (let ((.cse10 (select |#memory_int| 1))) (or (not (= ~a_t~0 0)) (not (= ~q_req_up~0 0)) (not .cse7) (not (= (select .cse10 0) 48)) (not (= 2 (select |#length| 1))) (not (= ~c_dr_pc~0 0)) (not (= (select |#valid| 3) 1)) (not (= ~p_num_write~0 0)) (not (= ~p_dw_pc~0 0)) (not (= (select |#length| 3) 12)) .cse1 (not (= (select |#valid| 0) 0)) (not (= (select .cse10 1) 0)) (not (= ~c_num_read~0 0)) (not (= (select |#valid| 1) 1)) (not (= 19 (select |#length| 2))) (not (= ~q_write_ev~0 2)) (< |#StackHeapBarrier| 1) .cse5 (not (= (select |#valid| 2) 1)) .cse6 (not .cse9) (not (= ~q_read_ev~0 2)) (not (= ~c_last_read~0 ~p_last_write~0)) (not (= ~p_last_write~0 0)) (and (= ~c_dr_st~0 0) (= ~p_dw_st~0 0)) .cse8)))) [2023-12-02 12:34:37,591 INFO L899 garLoopResultBuilder]: For program point exists_runnable_threadEXIT(lines 251 270) no Hoare annotation was computed. [2023-12-02 12:34:37,591 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 251 270) the Hoare annotation is: true [2023-12-02 12:34:37,591 INFO L899 garLoopResultBuilder]: For program point L95(lines 83 97) no Hoare annotation was computed. [2023-12-02 12:34:37,591 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 90) no Hoare annotation was computed. [2023-12-02 12:34:37,591 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 93) no Hoare annotation was computed. [2023-12-02 12:34:37,592 INFO L899 garLoopResultBuilder]: For program point L84-2(lines 84 93) no Hoare annotation was computed. [2023-12-02 12:34:37,592 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 80 98) the Hoare annotation is: true [2023-12-02 12:34:37,592 INFO L899 garLoopResultBuilder]: For program point is_do_read_c_triggeredEXIT(lines 80 98) no Hoare annotation was computed. [2023-12-02 12:34:37,592 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 271 288) the Hoare annotation is: (let ((.cse5 (not (= ~q_free~0 1))) (.cse2 (= ~c_dr_st~0 0)) (.cse7 (= |old(~q_read_ev~0)| 1)) (.cse8 (= |old(~q_write_ev~0)| 1)) (.cse3 (not (= ~p_last_write~0 ~q_buf_0~0))) (.cse9 (and (= ~q_write_ev~0 |old(~q_write_ev~0)|) (= |old(~q_read_ev~0)| ~q_read_ev~0))) (.cse10 (not (= ~p_dw_pc~0 1))) (.cse0 (= ~p_dw_st~0 0)) (.cse11 (not (= ~c_dr_pc~0 1))) (.cse4 (not (= ~p_dw_i~0 1))) (.cse6 (not (= 1 ~c_dr_i~0)))) (and (let ((.cse1 (select |#memory_int| 1))) (or (not (= ~a_t~0 0)) (not (= ~q_req_up~0 0)) (not .cse0) (not (= (select .cse1 0) 48)) (and (= ~q_write_ev~0 2) (= ~q_read_ev~0 2)) (not (= 2 (select |#length| 1))) (not (= ~c_dr_pc~0 0)) (not .cse2) (not (= (select |#valid| 3) 1)) (not (= ~p_num_write~0 0)) (not (= ~p_dw_pc~0 0)) (not (= (select |#length| 3) 12)) .cse3 (not (= (select |#valid| 0) 0)) (not (= (select .cse1 1) 0)) (not (= ~c_num_read~0 0)) (not (= (select |#valid| 1) 1)) (not (= 19 (select |#length| 2))) (not (= |old(~q_read_ev~0)| 2)) (< |#StackHeapBarrier| 1) .cse4 (not (= (select |#valid| 2) 1)) .cse5 (not (= 2 |old(~q_write_ev~0)|)) (not (= ~c_last_read~0 ~p_last_write~0)) (not (= ~p_last_write~0 0)) .cse6)) (or .cse2 .cse7 .cse8 .cse3 .cse9 .cse10 (not (= ~c_num_read~0 ~p_num_write~0)) .cse11 .cse4 (= |old(~q_write_ev~0)| 0) .cse5 .cse6) (or .cse2 .cse7 .cse8 .cse3 .cse9 (not (= ~q_free~0 0)) .cse10 .cse0 .cse11 .cse4 (not (= (+ ~c_num_read~0 1) ~p_num_write~0)) (= |old(~q_read_ev~0)| 0) .cse6))) [2023-12-02 12:34:37,592 INFO L899 garLoopResultBuilder]: For program point fire_delta_eventsEXIT(lines 271 288) no Hoare annotation was computed. [2023-12-02 12:34:37,593 INFO L899 garLoopResultBuilder]: For program point update_channelsEXIT(lines 218 232) no Hoare annotation was computed. [2023-12-02 12:34:37,593 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 218 232) the Hoare annotation is: (let ((.cse0 (= ~c_dr_st~0 0)) (.cse34 (select |#memory_int| 1)) (.cse11 (= ~p_dw_st~0 0))) (let ((.cse1 (= |old(~q_read_ev~0)| 1)) (.cse2 (and (= ~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)|))) (.cse3 (= |old(~q_write_ev~0)| 1)) (.cse5 (not (= ~p_dw_pc~0 1))) (.cse6 (not (= ~c_dr_pc~0 1))) (.cse9 (= |old(~q_read_ev~0)| 0)) (.cse12 (not (= ~a_t~0 0))) (.cse13 (not .cse11)) (.cse14 (not (= (select .cse34 0) 48))) (.cse15 (not (= 2 (select |#length| 1)))) (.cse16 (not (= ~c_dr_pc~0 0))) (.cse17 (not .cse0)) (.cse18 (not (= (select |#valid| 3) 1))) (.cse19 (not (= ~p_num_write~0 0))) (.cse20 (not (= ~p_dw_pc~0 0))) (.cse21 (not (= (select |#length| 3) 12))) (.cse4 (not (= ~p_last_write~0 ~q_buf_0~0))) (.cse22 (not (= (select |#valid| 0) 0))) (.cse23 (not (= (select .cse34 1) 0))) (.cse24 (not (= ~c_num_read~0 0))) (.cse25 (not (= (select |#valid| 1) 1))) (.cse26 (not (= 19 (select |#length| 2)))) (.cse27 (not (= |old(~q_read_ev~0)| 2))) (.cse28 (< |#StackHeapBarrier| 1)) (.cse7 (not (= ~p_dw_i~0 1))) (.cse29 (not (= (select |#valid| 2) 1))) (.cse8 (not (= ~q_free~0 1))) (.cse30 (not (= |old(~q_req_up~0)| 0))) (.cse31 (not (= 2 |old(~q_write_ev~0)|))) (.cse32 (not (= ~c_last_read~0 ~p_last_write~0))) (.cse33 (not (= ~p_last_write~0 0))) (.cse10 (not (= 1 ~c_dr_i~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (not (= ~c_num_read~0 ~p_num_write~0)) .cse6 .cse7 (= |old(~q_write_ev~0)| 0) .cse8 .cse9 .cse10) (or .cse0 .cse1 .cse2 .cse3 .cse4 (not (= ~q_free~0 0)) .cse5 .cse11 .cse6 .cse7 (not (= (+ ~c_num_read~0 1) ~p_num_write~0)) .cse9 .cse10) (or .cse12 .cse13 .cse14 .cse15 (and (= ~q_req_up~0 0) (= ~q_write_ev~0 2) (= ~q_read_ev~0 2)) .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse4 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse28 .cse7 .cse29 .cse8 .cse30 .cse31 .cse32 .cse33 .cse10) (or .cse12 .cse13 .cse14 .cse15 .cse16 (not (= |old(~q_ev~0)| 0)) .cse17 .cse18 .cse19 .cse20 .cse21 .cse4 .cse22 .cse23 (= ~q_ev~0 0) .cse24 .cse25 .cse26 .cse27 .cse28 .cse7 .cse29 .cse8 .cse30 .cse31 .cse32 .cse33 .cse10)))) [2023-12-02 12:34:37,593 INFO L899 garLoopResultBuilder]: For program point reset_delta_eventsEXIT(lines 289 306) no Hoare annotation was computed. [2023-12-02 12:34:37,594 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 289 306) the Hoare annotation is: (let ((.cse17 (= |old(~q_read_ev~0)| ~q_read_ev~0)) (.cse13 (= ~p_dw_st~0 0)) (.cse7 (= ~c_dr_st~0 0))) (let ((.cse2 (not .cse7)) (.cse11 (not (= ~q_free~0 0))) (.cse15 (not (= (+ ~c_num_read~0 1) ~p_num_write~0))) (.cse0 (not .cse13)) (.cse8 (= |old(~q_read_ev~0)| 1)) (.cse9 (= |old(~q_write_ev~0)| 1)) (.cse3 (not (= ~p_last_write~0 ~q_buf_0~0))) (.cse10 (and (= ~q_write_ev~0 |old(~q_write_ev~0)|) .cse17)) (.cse12 (not (= ~p_dw_pc~0 1))) (.cse18 (not (= ~c_num_read~0 ~p_num_write~0))) (.cse19 (< ~p_dw_pc~0 1)) (.cse14 (not (= ~c_dr_pc~0 1))) (.cse4 (not (= ~p_dw_i~0 1))) (.cse20 (= |old(~q_write_ev~0)| 0)) (.cse5 (not (= ~q_free~0 1))) (.cse16 (= |old(~q_read_ev~0)| 0)) (.cse6 (not (= 1 ~c_dr_i~0)))) (and (let ((.cse1 (select |#memory_int| 1))) (or (not (= ~a_t~0 0)) (not (= ~q_req_up~0 0)) .cse0 (not (= (select .cse1 0) 48)) (and (= ~q_write_ev~0 2) (= ~q_read_ev~0 2)) (not (= 2 (select |#length| 1))) (not (= ~c_dr_pc~0 0)) .cse2 (not (= (select |#valid| 3) 1)) (not (= ~p_num_write~0 0)) (not (= ~p_dw_pc~0 0)) (not (= (select |#length| 3) 12)) .cse3 (not (= (select |#valid| 0) 0)) (not (= (select .cse1 1) 0)) (not (= ~c_num_read~0 0)) (not (= (select |#valid| 1) 1)) (not (= 19 (select |#length| 2))) (not (= |old(~q_read_ev~0)| 2)) (< |#StackHeapBarrier| 1) .cse4 (not (= (select |#valid| 2) 1)) .cse5 (not (= 2 |old(~q_write_ev~0)|)) (not (= ~c_last_read~0 ~p_last_write~0)) (not (= ~p_last_write~0 0)) .cse6)) (or .cse7 .cse8 .cse9 .cse3 .cse10 .cse11 .cse12 .cse13 .cse14 .cse4 .cse15 .cse16 .cse6) (or .cse8 .cse2 .cse3 (and .cse17 (= ~q_write_ev~0 1)) .cse11 .cse12 (not .cse9) .cse13 .cse14 .cse4 .cse15 .cse16 .cse6) (or .cse7 .cse0 .cse9 .cse3 .cse10 .cse12 .cse18 .cse19 .cse14 .cse4 .cse20 .cse5 .cse16 .cse6) (or .cse7 .cse8 .cse9 .cse3 .cse10 .cse12 .cse18 .cse19 .cse14 .cse4 .cse20 .cse5 .cse16 .cse6)))) [2023-12-02 12:34:37,594 INFO L895 garLoopResultBuilder]: At program point L415(line 415) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= ~p_dw_pc~0 0) (= ~c_dr_st~0 0) (= ~p_num_write~0 0) (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (= ~c_num_read~0 0) (= ~q_buf_0~0 0) (= ~p_last_write~0 0) (= |ULTIMATE.start_start_simulation_~kernel_st~0#1| 0) (= ~q_free~0 1) (= ~c_last_read~0 0) (= 1 ~c_dr_i~0) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= ~q_req_up~0 0) (= ~q_ev~0 0) (= ~q_write_ev~0 2) (= ~p_dw_st~0 0) (= (select |#valid| 1) 1) (= 19 (select |#length| 2)) (= ~q_read_ev~0 2) (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= ~a_t~0 0) (= (select .cse0 0) 48) (= (select .cse0 1) 0))) [2023-12-02 12:34:37,594 INFO L899 garLoopResultBuilder]: For program point L349(lines 339 379) no Hoare annotation was computed. [2023-12-02 12:34:37,594 INFO L895 garLoopResultBuilder]: At program point L432(line 432) the Hoare annotation is: (let ((.cse17 (= ~q_write_ev~0 1)) (.cse16 (= ~c_dr_st~0 0)) (.cse9 (= ~p_dw_st~0 0))) (let ((.cse12 (not .cse9)) (.cse14 (= (+ ~c_num_read~0 1) ~p_num_write~0)) (.cse15 (= ~q_free~0 0)) (.cse13 (not (= ~q_read_ev~0 1))) (.cse0 (= ~c_num_read~0 ~p_num_write~0)) (.cse1 (= ~p_last_write~0 ~q_buf_0~0)) (.cse2 (not (= ~q_write_ev~0 0))) (.cse3 (= ~q_free~0 1)) (.cse4 (not .cse16)) (.cse5 (= 1 ~c_dr_i~0)) (.cse6 (not (= ~q_read_ev~0 0))) (.cse7 (= ~c_dr_pc~0 1)) (.cse8 (= ~p_dw_pc~0 1)) (.cse10 (= ~p_dw_i~0 1)) (.cse11 (not .cse17))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse12 .cse13 .cse1 .cse14 .cse4 .cse5 .cse15 .cse6 .cse7 .cse8 .cse10 .cse11) (and .cse16 .cse12 .cse13 .cse1 .cse14 .cse5 .cse15 .cse6 .cse7 .cse8 .cse10 .cse17) (let ((.cse18 (select |#memory_int| 1))) (and (= ~p_dw_pc~0 0) .cse16 (= ~p_num_write~0 0) (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (= ~c_num_read~0 0) (= ~q_buf_0~0 0) (= ~p_last_write~0 0) .cse3 (= ~c_last_read~0 0) .cse5 (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= ~q_req_up~0 0) (= ~q_write_ev~0 2) .cse9 (= (select |#valid| 1) 1) (= 19 (select |#length| 2)) (= ~q_read_ev~0 2) (= ~c_dr_pc~0 0) .cse10 (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= ~a_t~0 0) (= (select .cse18 0) 48) (= (select .cse18 1) 0))) (and .cse13 .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10 .cse11)))) [2023-12-02 12:34:37,595 INFO L899 garLoopResultBuilder]: For program point do_write_p_returnLabel#1(lines 124 163) no Hoare annotation was computed. [2023-12-02 12:34:37,595 INFO L899 garLoopResultBuilder]: For program point start_simulation_returnLabel#1(lines 405 447) no Hoare annotation was computed. [2023-12-02 12:34:37,595 INFO L899 garLoopResultBuilder]: For program point L342(line 342) no Hoare annotation was computed. [2023-12-02 12:34:37,595 INFO L899 garLoopResultBuilder]: For program point L433(line 433) no Hoare annotation was computed. [2023-12-02 12:34:37,595 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 177) no Hoare annotation was computed. [2023-12-02 12:34:37,595 INFO L895 garLoopResultBuilder]: At program point L392(line 392) the Hoare annotation is: (let ((.cse13 (= ~c_dr_st~0 0)) (.cse15 (= ~p_dw_st~0 0))) (let ((.cse0 (not .cse15)) (.cse3 (= (+ ~c_num_read~0 1) ~p_num_write~0)) (.cse6 (= ~q_free~0 0)) (.cse12 (= ~q_write_ev~0 2)) (.cse1 (not (= ~q_read_ev~0 1))) (.cse2 (= ~p_last_write~0 ~q_buf_0~0)) (.cse14 (= ~q_free~0 1)) (.cse4 (not .cse13)) (.cse5 (= 1 ~c_dr_i~0)) (.cse7 (not (= ~q_read_ev~0 0))) (.cse8 (= ~c_dr_pc~0 1)) (.cse9 (= ~p_dw_pc~0 1)) (.cse10 (= ~p_dw_i~0 1)) (.cse11 (not (= ~q_write_ev~0 1)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 .cse2 .cse3 .cse5 .cse6 .cse7 .cse8 .cse9 .cse12 .cse10) (let ((.cse16 (select |#memory_int| 1))) (and (= ~p_dw_pc~0 0) .cse13 (= ~p_num_write~0 0) (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (= ~c_num_read~0 0) (= ~q_buf_0~0 0) (= ~p_last_write~0 0) .cse14 (= ~c_last_read~0 0) .cse5 (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= ~q_req_up~0 0) .cse12 .cse15 (= (select |#valid| 1) 1) (= 19 (select |#length| 2)) (= ~q_read_ev~0 2) (= ~c_dr_pc~0 0) .cse10 (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= ~a_t~0 0) (= (select .cse16 0) 48) (= (select .cse16 1) 0))) (and .cse1 (= ~c_num_read~0 ~p_num_write~0) .cse2 (not (= ~q_write_ev~0 0)) .cse14 .cse4 .cse5 .cse7 .cse8 .cse9 .cse10 .cse11)))) [2023-12-02 12:34:37,595 INFO L899 garLoopResultBuilder]: For program point L392-1(line 392) no Hoare annotation was computed. [2023-12-02 12:34:37,595 INFO L899 garLoopResultBuilder]: For program point L128(lines 128 136) no Hoare annotation was computed. [2023-12-02 12:34:37,596 INFO L899 garLoopResultBuilder]: For program point do_read_c_returnLabel#1(lines 165 217) no Hoare annotation was computed. [2023-12-02 12:34:37,596 INFO L899 garLoopResultBuilder]: For program point L368(lines 368 375) no Hoare annotation was computed. [2023-12-02 12:34:37,596 INFO L895 garLoopResultBuilder]: At program point L203(line 203) the Hoare annotation is: false [2023-12-02 12:34:37,596 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 12:34:37,596 INFO L899 garLoopResultBuilder]: For program point L344(lines 344 348) no Hoare annotation was computed. [2023-12-02 12:34:37,596 INFO L899 garLoopResultBuilder]: For program point L344-1(lines 339 379) no Hoare annotation was computed. [2023-12-02 12:34:37,596 INFO L895 garLoopResultBuilder]: At program point L427(line 427) the Hoare annotation is: (let ((.cse10 (= ~c_dr_st~0 0))) (let ((.cse0 (= ~p_dw_st~0 0)) (.cse1 (not (= ~q_read_ev~0 1))) (.cse2 (= ~p_last_write~0 ~q_buf_0~0)) (.cse11 (= ~q_free~0 1)) (.cse3 (not .cse10)) (.cse4 (= 1 ~c_dr_i~0)) (.cse5 (not (= ~q_read_ev~0 0))) (.cse6 (= ~c_dr_pc~0 1)) (.cse7 (= ~p_dw_pc~0 1)) (.cse8 (= ~p_dw_i~0 1)) (.cse9 (not (= ~q_write_ev~0 1)))) (or (and (not .cse0) .cse1 .cse2 (= (+ ~c_num_read~0 1) ~p_num_write~0) .cse3 .cse4 (= ~q_free~0 0) .cse5 .cse6 .cse7 .cse8 .cse9) (let ((.cse12 (select |#memory_int| 1))) (and (= ~p_dw_pc~0 0) .cse10 (= ~p_num_write~0 0) (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (= ~c_num_read~0 0) (= ~q_buf_0~0 0) (= ~p_last_write~0 0) .cse11 (= ~c_last_read~0 0) .cse4 (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= ~q_req_up~0 0) (= ~q_write_ev~0 2) .cse0 (= (select |#valid| 1) 1) (= 19 (select |#length| 2)) (= ~q_read_ev~0 2) (= ~c_dr_pc~0 0) .cse8 (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= ~a_t~0 0) (= (select .cse12 0) 48) (= (select .cse12 1) 0))) (and .cse1 (= ~c_num_read~0 ~p_num_write~0) .cse2 (not (= ~q_write_ev~0 0)) .cse11 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9)))) [2023-12-02 12:34:37,596 INFO L899 garLoopResultBuilder]: For program point L427-1(line 427) no Hoare annotation was computed. [2023-12-02 12:34:37,597 INFO L895 garLoopResultBuilder]: At program point L419-1(lines 419 441) the Hoare annotation is: (let ((.cse13 (= ~c_dr_st~0 0)) (.cse15 (= ~p_dw_st~0 0))) (let ((.cse0 (not .cse15)) (.cse3 (= (+ ~c_num_read~0 1) ~p_num_write~0)) (.cse6 (= ~q_free~0 0)) (.cse12 (= ~q_write_ev~0 2)) (.cse1 (not (= ~q_read_ev~0 1))) (.cse2 (= ~p_last_write~0 ~q_buf_0~0)) (.cse14 (= ~q_free~0 1)) (.cse4 (not .cse13)) (.cse5 (= 1 ~c_dr_i~0)) (.cse7 (not (= ~q_read_ev~0 0))) (.cse8 (= ~c_dr_pc~0 1)) (.cse9 (= ~p_dw_pc~0 1)) (.cse10 (= ~p_dw_i~0 1)) (.cse11 (not (= ~q_write_ev~0 1)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 .cse2 .cse3 .cse5 .cse6 .cse7 .cse8 .cse9 .cse12 .cse10) (let ((.cse16 (select |#memory_int| 1))) (and (= ~p_dw_pc~0 0) .cse13 (= ~p_num_write~0 0) (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (= ~c_num_read~0 0) (= ~q_buf_0~0 0) (= ~p_last_write~0 0) .cse14 (= ~c_last_read~0 0) .cse5 (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= ~q_req_up~0 0) .cse12 .cse15 (= (select |#valid| 1) 1) (= 19 (select |#length| 2)) (= ~q_read_ev~0 2) (= ~c_dr_pc~0 0) .cse10 (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= ~a_t~0 0) (= (select .cse16 0) 48) (= (select .cse16 1) 0))) (and .cse1 (= ~c_num_read~0 ~p_num_write~0) .cse2 (not (= ~q_write_ev~0 0)) .cse14 .cse4 .cse5 .cse7 .cse8 .cse9 .cse10 .cse11)))) [2023-12-02 12:34:37,597 INFO L899 garLoopResultBuilder]: For program point L353(lines 353 360) no Hoare annotation was computed. [2023-12-02 12:34:37,597 INFO L899 garLoopResultBuilder]: For program point eval_returnLabel#1(lines 332 385) no Hoare annotation was computed. [2023-12-02 12:34:37,597 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 440) no Hoare annotation was computed. [2023-12-02 12:34:37,597 INFO L899 garLoopResultBuilder]: For program point L172(lines 172 176) no Hoare annotation was computed. [2023-12-02 12:34:37,597 INFO L895 garLoopResultBuilder]: At program point L139-1(lines 139 157) the Hoare annotation is: (let ((.cse21 (= ~p_dw_pc~0 1))) (let ((.cse8 (= ~c_dr_pc~0 0)) (.cse1 (= ~p_num_write~0 0)) (.cse2 (= ~c_num_read~0 0)) (.cse3 (= ~q_free~0 1)) (.cse5 (= ~q_req_up~0 0)) (.cse15 (not .cse21)) (.cse6 (= ~q_write_ev~0 2)) (.cse7 (= ~q_read_ev~0 2)) (.cse12 (not (= ~p_dw_st~0 0))) (.cse0 (= ~c_dr_st~0 0)) (.cse11 (= ~q_req_up~0 1)) (.cse16 (= ~c_dr_st~0 2)) (.cse13 (= ~p_last_write~0 ~q_buf_0~0)) (.cse4 (= 1 ~c_dr_i~0)) (.cse14 (= ~q_free~0 0)) (.cse17 (= ~c_dr_pc~0 1)) (.cse9 (= ~p_dw_i~0 1))) (or (let ((.cse10 (select |#memory_int| 1))) (and (= ~p_dw_pc~0 0) .cse0 .cse1 (not (= |ULTIMATE.start_eval_~tmp~2#1| 0)) (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) .cse2 (= ~q_buf_0~0 0) (= ~p_last_write~0 0) (<= |ULTIMATE.start_eval_~tmp~2#1| 2147483647) .cse3 (= ~c_last_read~0 0) .cse4 (= |ULTIMATE.start_start_simulation_~kernel_st~0#1| 1) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) .cse5 (<= |ULTIMATE.start_eval_~tmp___1~0#1| 1) .cse6 (not (= |ULTIMATE.start_eval_~tmp___1~0#1| 0)) (= ~p_dw_st~0 1) (= (select |#valid| 1) 1) (= 19 (select |#length| 2)) .cse7 .cse8 .cse9 (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (<= 0 |ULTIMATE.start_eval_~tmp___1~0#1|) (= ~a_t~0 0) (= (select .cse10 0) 48) (= (select .cse10 1) 0) (<= 0 (+ |ULTIMATE.start_eval_~tmp~2#1| 2147483648)))) (and .cse0 .cse11 .cse12 .cse2 .cse13 .cse4 .cse14 .cse15 .cse6 .cse7 .cse8 .cse9 (= ~p_num_write~0 1)) (and .cse1 .cse12 .cse2 .cse16 .cse13 .cse3 .cse4 .cse5 .cse17 .cse15 .cse6 .cse7 .cse9) (and .cse12 (let ((.cse18 (not (= ~q_read_ev~0 1))) (.cse19 (= (+ ~c_num_read~0 1) ~p_num_write~0)) (.cse20 (not (= ~q_read_ev~0 0))) (.cse22 (not (= ~q_write_ev~0 1)))) (or (and .cse11 .cse18 .cse13 .cse19 (not (= ~q_write_ev~0 0)) (not .cse0) .cse4 .cse14 .cse20 .cse17 .cse21 .cse9 .cse22) (and .cse11 .cse18 .cse16 .cse13 .cse19 .cse4 .cse14 .cse20 .cse17 .cse9 .cse22))))))) [2023-12-02 12:34:37,597 INFO L899 garLoopResultBuilder]: For program point L131(lines 131 135) no Hoare annotation was computed. [2023-12-02 12:34:37,598 INFO L895 garLoopResultBuilder]: At program point L412(line 412) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= ~p_dw_pc~0 0) (= ~c_dr_st~0 0) (= ~p_num_write~0 0) (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (= ~c_num_read~0 0) (= ~q_buf_0~0 0) (= ~p_last_write~0 0) (= |ULTIMATE.start_start_simulation_~kernel_st~0#1| 0) (= ~q_free~0 1) (= ~c_last_read~0 0) (= 1 ~c_dr_i~0) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= ~q_req_up~0 0) (= ~q_ev~0 0) (= ~q_write_ev~0 2) (= ~p_dw_st~0 0) (= (select |#valid| 1) 1) (= 19 (select |#length| 2)) (= ~q_read_ev~0 2) (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= ~a_t~0 0) (= (select .cse0 0) 48) (= (select .cse0 1) 0))) [2023-12-02 12:34:37,598 INFO L899 garLoopResultBuilder]: For program point L412-1(line 412) no Hoare annotation was computed. [2023-12-02 12:34:37,598 INFO L899 garLoopResultBuilder]: For program point L181(lines 180 211) no Hoare annotation was computed. [2023-12-02 12:34:37,598 INFO L899 garLoopResultBuilder]: For program point L140(lines 139 157) no Hoare annotation was computed. [2023-12-02 12:34:37,598 INFO L899 garLoopResultBuilder]: For program point L198(lines 198 210) no Hoare annotation was computed. [2023-12-02 12:34:37,598 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 12:34:37,598 INFO L899 garLoopResultBuilder]: For program point L182-1(lines 182 192) no Hoare annotation was computed. [2023-12-02 12:34:37,598 INFO L899 garLoopResultBuilder]: For program point L141(lines 141 149) no Hoare annotation was computed. [2023-12-02 12:34:37,599 INFO L895 garLoopResultBuilder]: At program point L364(lines 339 379) the Hoare annotation is: (let ((.cse12 (= ~c_dr_st~0 0)) (.cse18 (= ~p_dw_st~0 0))) (let ((.cse0 (not .cse18)) (.cse3 (= (+ ~c_num_read~0 1) ~p_num_write~0)) (.cse20 (= ~c_dr_pc~0 0)) (.cse6 (= ~q_free~0 0)) (.cse22 (= ~q_req_up~0 1)) (.cse13 (= ~p_num_write~0 0)) (.cse14 (= ~c_num_read~0 0)) (.cse25 (= ~c_dr_st~0 2)) (.cse16 (= ~q_req_up~0 0)) (.cse17 (= ~q_write_ev~0 2)) (.cse19 (= ~q_read_ev~0 2)) (.cse1 (not (= ~q_read_ev~0 1))) (.cse23 (= ~c_num_read~0 ~p_num_write~0)) (.cse2 (= ~p_last_write~0 ~q_buf_0~0)) (.cse24 (not (= ~q_write_ev~0 0))) (.cse15 (= ~q_free~0 1)) (.cse4 (not .cse12)) (.cse5 (= 1 ~c_dr_i~0)) (.cse7 (not (= ~q_read_ev~0 0))) (.cse8 (= ~c_dr_pc~0 1)) (.cse9 (= ~p_dw_pc~0 1)) (.cse10 (= ~p_dw_i~0 1)) (.cse11 (not (= ~q_write_ev~0 1)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (let ((.cse21 (select |#memory_int| 1))) (and (= ~p_dw_pc~0 0) .cse12 .cse13 (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) .cse14 (= ~q_buf_0~0 0) (= ~p_last_write~0 0) .cse15 (= ~c_last_read~0 0) .cse5 (= |ULTIMATE.start_start_simulation_~kernel_st~0#1| 1) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) .cse16 .cse17 .cse18 (= (select |#valid| 1) 1) (= 19 (select |#length| 2)) .cse19 .cse20 .cse10 (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= ~a_t~0 0) (= (select .cse21 0) 48) (= (select .cse21 1) 0))) (and .cse0 .cse1 .cse2 .cse3 .cse5 .cse6 .cse7 .cse8 .cse9 .cse17 .cse10) (and .cse12 .cse22 .cse14 .cse2 .cse5 .cse6 .cse9 .cse17 .cse19 .cse20 (= 2 ~p_dw_st~0) .cse10 (= ~p_num_write~0 1)) (and .cse1 .cse23 .cse2 .cse24 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse18 .cse10 .cse11) (and .cse1 .cse23 (or (and .cse22 .cse25 .cse2 .cse15 .cse5 .cse8 .cse9 .cse18 .cse10 .cse11) (and .cse25 .cse2 .cse15 .cse5 .cse8 .cse9 .cse18 (= |exists_runnable_thread_#res| 1) .cse10 .cse11)) .cse7) (and .cse13 .cse14 .cse25 .cse2 (<= ~p_dw_pc~0 0) .cse15 .cse5 .cse16 .cse8 .cse17 .cse18 .cse19 .cse10 (= ~c_last_read~0 ~p_last_write~0)) (and .cse1 .cse23 .cse2 .cse24 .cse15 .cse4 .cse5 .cse7 .cse8 .cse9 .cse10 .cse11)))) [2023-12-02 12:34:37,599 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 205) no Hoare annotation was computed. [2023-12-02 12:34:37,599 INFO L895 garLoopResultBuilder]: At program point L414(line 414) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= ~p_dw_pc~0 0) (= ~c_dr_st~0 0) (= ~p_num_write~0 0) (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (= ~c_num_read~0 0) (= ~q_buf_0~0 0) (= ~p_last_write~0 0) (= |ULTIMATE.start_start_simulation_~kernel_st~0#1| 0) (= ~q_free~0 1) (= ~c_last_read~0 0) (= 1 ~c_dr_i~0) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= ~q_req_up~0 0) (= ~q_ev~0 0) (= ~q_write_ev~0 2) (= ~p_dw_st~0 0) (= (select |#valid| 1) 1) (= 19 (select |#length| 2)) (= ~q_read_ev~0 2) (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= ~a_t~0 0) (= (select .cse0 0) 48) (= (select .cse0 1) 0))) [2023-12-02 12:34:37,599 INFO L895 garLoopResultBuilder]: At program point L414-1(line 414) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= ~p_dw_pc~0 0) (= ~c_dr_st~0 0) (= ~p_num_write~0 0) (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (= ~c_num_read~0 0) (= ~q_buf_0~0 0) (= ~p_last_write~0 0) (= |ULTIMATE.start_start_simulation_~kernel_st~0#1| 0) (= ~q_free~0 1) (= ~c_last_read~0 0) (= 1 ~c_dr_i~0) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= ~q_req_up~0 0) (= ~q_ev~0 0) (= ~q_write_ev~0 2) (= ~p_dw_st~0 0) (= (select |#valid| 1) 1) (= 19 (select |#length| 2)) (= ~q_read_ev~0 2) (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= ~a_t~0 0) (= (select .cse0 0) 48) (= (select .cse0 1) 0))) [2023-12-02 12:34:37,599 INFO L895 garLoopResultBuilder]: At program point L340(line 340) the Hoare annotation is: (let ((.cse12 (= ~c_dr_st~0 0)) (.cse18 (= ~p_dw_st~0 0))) (let ((.cse0 (not .cse18)) (.cse3 (= (+ ~c_num_read~0 1) ~p_num_write~0)) (.cse20 (= ~c_dr_pc~0 0)) (.cse6 (= ~q_free~0 0)) (.cse22 (= ~q_req_up~0 1)) (.cse13 (= ~p_num_write~0 0)) (.cse14 (= ~c_num_read~0 0)) (.cse25 (= ~c_dr_st~0 2)) (.cse16 (= ~q_req_up~0 0)) (.cse17 (= ~q_write_ev~0 2)) (.cse19 (= ~q_read_ev~0 2)) (.cse1 (not (= ~q_read_ev~0 1))) (.cse23 (= ~c_num_read~0 ~p_num_write~0)) (.cse2 (= ~p_last_write~0 ~q_buf_0~0)) (.cse24 (not (= ~q_write_ev~0 0))) (.cse15 (= ~q_free~0 1)) (.cse4 (not .cse12)) (.cse5 (= 1 ~c_dr_i~0)) (.cse7 (not (= ~q_read_ev~0 0))) (.cse8 (= ~c_dr_pc~0 1)) (.cse9 (= ~p_dw_pc~0 1)) (.cse10 (= ~p_dw_i~0 1)) (.cse11 (not (= ~q_write_ev~0 1)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (let ((.cse21 (select |#memory_int| 1))) (and (= ~p_dw_pc~0 0) .cse12 .cse13 (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) .cse14 (= ~q_buf_0~0 0) (= ~p_last_write~0 0) .cse15 (= ~c_last_read~0 0) .cse5 (= |ULTIMATE.start_start_simulation_~kernel_st~0#1| 1) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) .cse16 .cse17 .cse18 (= (select |#valid| 1) 1) (= 19 (select |#length| 2)) .cse19 .cse20 .cse10 (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= ~a_t~0 0) (= (select .cse21 0) 48) (= (select .cse21 1) 0))) (and .cse0 .cse1 .cse2 .cse3 .cse5 .cse6 .cse7 .cse8 .cse9 .cse17 .cse10) (and .cse12 .cse22 .cse14 .cse2 .cse5 .cse6 .cse9 .cse17 .cse19 .cse20 (= 2 ~p_dw_st~0) .cse10 (= ~p_num_write~0 1)) (and .cse1 .cse23 .cse2 .cse24 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse18 .cse10 .cse11) (and .cse1 .cse23 (or (and .cse22 .cse25 .cse2 .cse15 .cse5 .cse8 .cse9 .cse18 .cse10 .cse11) (and .cse25 .cse2 .cse15 .cse5 .cse8 .cse9 .cse18 (= |exists_runnable_thread_#res| 1) .cse10 .cse11)) .cse7) (and .cse13 .cse14 .cse25 .cse2 (<= ~p_dw_pc~0 0) .cse15 .cse5 .cse16 .cse8 .cse17 .cse18 .cse19 .cse10 (= ~c_last_read~0 ~p_last_write~0)) (and .cse1 .cse23 .cse2 .cse24 .cse15 .cse4 .cse5 .cse7 .cse8 .cse9 .cse10 .cse11)))) [2023-12-02 12:34:37,600 INFO L895 garLoopResultBuilder]: At program point L208(line 208) the Hoare annotation is: false [2023-12-02 12:34:37,600 INFO L895 garLoopResultBuilder]: At program point L208-1(lines 180 211) the Hoare annotation is: (let ((.cse18 (= ~c_dr_pc~0 0))) (let ((.cse1 (= ~p_dw_st~0 0)) (.cse2 (not (= ~q_read_ev~0 1))) (.cse3 (= ~c_num_read~0 ~p_num_write~0)) (.cse5 (not (= ~q_write_ev~0 0))) (.cse6 (= ~q_free~0 1)) (.cse9 (not (= ~q_read_ev~0 0))) (.cse10 (or (= ~c_dr_pc~0 1) .cse18)) (.cse13 (= ~c_last_read~0 ~p_last_write~0)) (.cse14 (not (= ~q_write_ev~0 1))) (.cse0 (= ~q_req_up~0 1)) (.cse15 (= ~c_num_read~0 0)) (.cse4 (= ~p_last_write~0 ~q_buf_0~0)) (.cse7 (not (= ~c_dr_st~0 0))) (.cse8 (= 1 ~c_dr_i~0)) (.cse11 (= ~p_dw_pc~0 1)) (.cse16 (= ~q_write_ev~0 2)) (.cse17 (= ~q_read_ev~0 2)) (.cse19 (= 2 ~p_dw_st~0)) (.cse12 (= ~p_dw_i~0 1))) (or (and .cse0 (not .cse1) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14) (and (= ~p_num_write~0 0) .cse15 .cse4 (<= ~p_dw_pc~0 0) .cse6 .cse7 .cse8 (= ~q_req_up~0 0) .cse16 .cse1 .cse17 .cse18 .cse12 .cse13) (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse19 .cse12 .cse13 .cse14) (and .cse0 .cse15 .cse4 .cse7 .cse8 (= ~q_free~0 0) .cse11 .cse16 .cse17 .cse18 .cse19 .cse12 (= ~p_num_write~0 1))))) [2023-12-02 12:34:37,600 INFO L895 garLoopResultBuilder]: At program point L431(line 431) the Hoare annotation is: (let ((.cse9 (= ~c_dr_st~0 0))) (let ((.cse0 (= ~p_dw_st~0 0)) (.cse1 (not (= ~q_read_ev~0 1))) (.cse2 (= ~p_last_write~0 ~q_buf_0~0)) (.cse10 (= ~q_free~0 1)) (.cse3 (not .cse9)) (.cse4 (= 1 ~c_dr_i~0)) (.cse5 (= ~c_dr_pc~0 1)) (.cse6 (= ~p_dw_pc~0 1)) (.cse7 (= ~p_dw_i~0 1)) (.cse8 (not (= ~q_write_ev~0 1)))) (or (and (not .cse0) .cse1 .cse2 (= (+ ~c_num_read~0 1) ~p_num_write~0) .cse3 .cse4 (= ~q_free~0 0) (not (= ~q_read_ev~0 0)) .cse5 .cse6 .cse7 .cse8) (let ((.cse11 (select |#memory_int| 1))) (and (= ~p_dw_pc~0 0) .cse9 (= ~p_num_write~0 0) (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (= ~c_num_read~0 0) (= ~q_buf_0~0 0) (= ~p_last_write~0 0) .cse10 (= ~c_last_read~0 0) .cse4 (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= ~q_req_up~0 0) (= ~q_write_ev~0 2) .cse0 (= (select |#valid| 1) 1) (= 19 (select |#length| 2)) (= ~q_read_ev~0 2) (= ~c_dr_pc~0 0) .cse7 (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= ~a_t~0 0) (= (select .cse11 0) 48) (= (select .cse11 1) 0))) (and .cse1 (= ~c_num_read~0 ~p_num_write~0) .cse2 (not (= ~q_write_ev~0 0)) .cse10 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8)))) [2023-12-02 12:34:37,600 INFO L895 garLoopResultBuilder]: At program point L431-1(line 431) the Hoare annotation is: (let ((.cse9 (= ~c_dr_st~0 0))) (let ((.cse0 (= ~p_last_write~0 ~q_buf_0~0)) (.cse2 (not .cse9)) (.cse4 (not (= ~q_read_ev~0 0))) (.cse5 (= ~c_dr_pc~0 1)) (.cse6 (= ~p_dw_pc~0 1)) (.cse1 (= ~q_free~0 1)) (.cse3 (= 1 ~c_dr_i~0)) (.cse8 (= ~p_dw_st~0 0)) (.cse7 (= ~p_dw_i~0 1))) (or (and (= ~c_num_read~0 ~p_num_write~0) .cse0 (not (= ~q_write_ev~0 0)) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (not (= ~q_write_ev~0 1))) (and (not .cse8) (not (= ~q_read_ev~0 1)) .cse0 (= (+ ~c_num_read~0 1) ~p_num_write~0) .cse2 .cse3 (= ~q_free~0 0) .cse4 .cse5 .cse6 .cse7) (let ((.cse10 (select |#memory_int| 1))) (and (= ~p_dw_pc~0 0) .cse9 (= ~p_num_write~0 0) (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (= ~c_num_read~0 0) (= ~q_buf_0~0 0) (= ~p_last_write~0 0) .cse1 (= ~c_last_read~0 0) .cse3 (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= ~q_req_up~0 0) (= ~q_write_ev~0 2) .cse8 (= (select |#valid| 1) 1) (= 19 (select |#length| 2)) (= ~q_read_ev~0 2) (= ~c_dr_pc~0 0) .cse7 (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= ~a_t~0 0) (= (select .cse10 0) 48) (= (select .cse10 1) 0)))))) [2023-12-02 12:34:37,600 INFO L899 garLoopResultBuilder]: For program point L65(lines 65 74) no Hoare annotation was computed. [2023-12-02 12:34:37,600 INFO L899 garLoopResultBuilder]: For program point L65-2(lines 65 74) no Hoare annotation was computed. [2023-12-02 12:34:37,600 INFO L899 garLoopResultBuilder]: For program point is_do_write_p_triggeredEXIT(lines 61 79) no Hoare annotation was computed. [2023-12-02 12:34:37,600 INFO L899 garLoopResultBuilder]: For program point L76(lines 64 78) no Hoare annotation was computed. [2023-12-02 12:34:37,600 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 61 79) the Hoare annotation is: true [2023-12-02 12:34:37,600 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 71) no Hoare annotation was computed. [2023-12-02 12:34:37,600 INFO L899 garLoopResultBuilder]: For program point errorEXIT(lines 16 23) no Hoare annotation was computed. [2023-12-02 12:34:37,601 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 16 23) the Hoare annotation is: true [2023-12-02 12:34:37,601 INFO L899 garLoopResultBuilder]: For program point errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2023-12-02 12:34:37,603 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:34:37,605 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 12:34:37,621 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~tmp~2 [2023-12-02 12:34:37,625 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-12-02 12:34:37,626 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~tmp~2 [2023-12-02 12:34:37,626 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~kernel_st~0 [2023-12-02 12:34:37,627 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-12-02 12:34:37,627 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-12-02 12:34:37,627 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~tmp___1~0 [2023-12-02 12:34:37,627 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~tmp___1~0 [2023-12-02 12:34:37,628 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-12-02 12:34:37,628 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-12-02 12:34:37,628 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-12-02 12:34:37,628 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-12-02 12:34:37,628 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~tmp___1~0 [2023-12-02 12:34:37,629 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-12-02 12:34:37,629 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-12-02 12:34:37,629 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~tmp~2 [2023-12-02 12:34:37,634 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-12-02 12:34:37,634 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-12-02 12:34:37,635 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-12-02 12:34:37,635 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-12-02 12:34:37,635 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-12-02 12:34:37,635 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-12-02 12:34:37,636 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-12-02 12:34:37,636 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-12-02 12:34:37,636 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-12-02 12:34:37,640 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-12-02 12:34:37,641 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-12-02 12:34:37,641 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-12-02 12:34:37,642 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-12-02 12:34:37,642 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-12-02 12:34:37,642 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-12-02 12:34:37,642 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-12-02 12:34:37,643 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-12-02 12:34:37,643 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-12-02 12:34:37,644 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-12-02 12:34:37,644 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-12-02 12:34:37,644 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-12-02 12:34:37,645 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-12-02 12:34:37,645 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-12-02 12:34:37,645 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-12-02 12:34:37,645 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-12-02 12:34:37,646 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-12-02 12:34:37,646 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-12-02 12:34:37,649 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-12-02 12:34:37,649 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~kernel_st~0 [2023-12-02 12:34:37,650 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-12-02 12:34:37,650 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-12-02 12:34:37,650 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-12-02 12:34:37,650 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-12-02 12:34:37,651 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-12-02 12:34:37,651 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-12-02 12:34:37,651 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-12-02 12:34:37,651 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-12-02 12:34:37,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:34:37 BoogieIcfgContainer [2023-12-02 12:34:37,655 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 12:34:37,656 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 12:34:37,656 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 12:34:37,656 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 12:34:37,657 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:32:35" (3/4) ... [2023-12-02 12:34:37,659 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 12:34:37,663 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure activate_threads [2023-12-02 12:34:37,663 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure exists_runnable_thread [2023-12-02 12:34:37,663 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure is_do_read_c_triggered [2023-12-02 12:34:37,663 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fire_delta_events [2023-12-02 12:34:37,663 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure update_channels [2023-12-02 12:34:37,664 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reset_delta_events [2023-12-02 12:34:37,664 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure is_do_write_p_triggered [2023-12-02 12:34:37,664 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure error [2023-12-02 12:34:37,673 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2023-12-02 12:34:37,674 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-12-02 12:34:37,675 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 12:34:37,675 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 12:34:37,700 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((c_dr_st == 0) || (\old(q_read_ev) == 1)) || (((q_write_ev == \old(q_write_ev)) && (\old(q_read_ev) == q_read_ev)) && (q_req_up == \old(q_req_up)))) || (\old(q_write_ev) == 1)) || !((p_last_write == q_buf_0))) || !((p_dw_pc == 1))) || !((c_num_read == p_num_write))) || !((c_dr_pc == 1))) || !((p_dw_i == 1))) || (\old(q_write_ev) == 0)) || !((q_free == 1))) || (\old(q_read_ev) == 0)) || !((1 == c_dr_i))) && (((((((((((((c_dr_st == 0) || (\old(q_read_ev) == 1)) || (((q_write_ev == \old(q_write_ev)) && (\old(q_read_ev) == q_read_ev)) && (q_req_up == \old(q_req_up)))) || (\old(q_write_ev) == 1)) || !((p_last_write == q_buf_0))) || !((q_free == 0))) || !((p_dw_pc == 1))) || (p_dw_st == 0)) || !((c_dr_pc == 1))) || !((p_dw_i == 1))) || !(((c_num_read + 1) == p_num_write))) || (\old(q_read_ev) == 0)) || !((1 == c_dr_i)))) [2023-12-02 12:34:37,703 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((!((p_dw_st == 0)) && !((q_read_ev == 1))) && (p_last_write == q_buf_0)) && ((c_num_read + 1) == p_num_write)) && !((c_dr_st == 0))) && (1 == c_dr_i)) && (q_free == 0)) && !((q_read_ev == 0))) && (c_dr_pc == 1)) && (p_dw_pc == 1)) && (p_dw_i == 1)) && !((q_write_ev == 1))) || ((((((((((((((((p_dw_pc == 0) && (c_dr_st == 0)) && (p_num_write == 0)) && (c_num_read == 0)) && (q_buf_0 == 0)) && (p_last_write == 0)) && (q_free == 1)) && (c_last_read == 0)) && (1 == c_dr_i)) && (q_req_up == 0)) && (q_write_ev == 2)) && (p_dw_st == 0)) && (q_read_ev == 2)) && (c_dr_pc == 0)) && (p_dw_i == 1)) && (a_t == 0))) || ((((((((((!((p_dw_st == 0)) && !((q_read_ev == 1))) && (p_last_write == q_buf_0)) && ((c_num_read + 1) == p_num_write)) && (1 == c_dr_i)) && (q_free == 0)) && !((q_read_ev == 0))) && (c_dr_pc == 1)) && (p_dw_pc == 1)) && (q_write_ev == 2)) && (p_dw_i == 1))) || (((((((((((((c_dr_st == 0) && (q_req_up == 1)) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (1 == c_dr_i)) && (q_free == 0)) && (p_dw_pc == 1)) && (q_write_ev == 2)) && (q_read_ev == 2)) && (c_dr_pc == 0)) && (2 == p_dw_st)) && (p_dw_i == 1)) && (p_num_write == 1))) || ((((((((((((!((q_read_ev == 1)) && (c_num_read == p_num_write)) && (p_last_write == q_buf_0)) && !((q_write_ev == 0))) && !((c_dr_st == 0))) && (1 == c_dr_i)) && (q_free == 0)) && !((q_read_ev == 0))) && (c_dr_pc == 1)) && (p_dw_pc == 1)) && (p_dw_st == 0)) && (p_dw_i == 1)) && !((q_write_ev == 1)))) || (((!((q_read_ev == 1)) && (c_num_read == p_num_write)) && (((((((((((q_req_up == 1) && (c_dr_st == 2)) && (p_last_write == q_buf_0)) && (q_free == 1)) && (1 == c_dr_i)) && (c_dr_pc == 1)) && (p_dw_pc == 1)) && (p_dw_st == 0)) && (p_dw_i == 1)) && !((q_write_ev == 1))) || ((((((((((c_dr_st == 2) && (p_last_write == q_buf_0)) && (q_free == 1)) && (1 == c_dr_i)) && (c_dr_pc == 1)) && (p_dw_pc == 1)) && (p_dw_st == 0)) && (\result == 1)) && (p_dw_i == 1)) && !((q_write_ev == 1))))) && !((q_read_ev == 0)))) || ((((((((((((((p_num_write == 0) && (c_num_read == 0)) && (c_dr_st == 2)) && (p_last_write == q_buf_0)) && (p_dw_pc <= 0)) && (q_free == 1)) && (1 == c_dr_i)) && (q_req_up == 0)) && (c_dr_pc == 1)) && (q_write_ev == 2)) && (p_dw_st == 0)) && (q_read_ev == 2)) && (p_dw_i == 1)) && (c_last_read == p_last_write))) || (((((((((((!((q_read_ev == 1)) && (c_num_read == p_num_write)) && (p_last_write == q_buf_0)) && !((q_write_ev == 0))) && (q_free == 1)) && !((c_dr_st == 0))) && (1 == c_dr_i)) && !((q_read_ev == 0))) && (c_dr_pc == 1)) && (p_dw_pc == 1)) && (p_dw_i == 1)) && !((q_write_ev == 1)))) [2023-12-02 12:34:37,737 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((c_dr_st == 0) || (\old(q_read_ev) == 1)) || (((q_write_ev == \old(q_write_ev)) && (\old(q_read_ev) == q_read_ev)) && (q_req_up == \old(q_req_up)))) || (\old(q_write_ev) == 1)) || !((p_last_write == q_buf_0))) || !((p_dw_pc == 1))) || !((c_num_read == p_num_write))) || !((c_dr_pc == 1))) || !((p_dw_i == 1))) || (\old(q_write_ev) == 0)) || !((q_free == 1))) || (\old(q_read_ev) == 0)) || !((1 == c_dr_i))) && (((((((((((((c_dr_st == 0) || (\old(q_read_ev) == 1)) || (((q_write_ev == \old(q_write_ev)) && (\old(q_read_ev) == q_read_ev)) && (q_req_up == \old(q_req_up)))) || (\old(q_write_ev) == 1)) || !((p_last_write == q_buf_0))) || !((q_free == 0))) || !((p_dw_pc == 1))) || (p_dw_st == 0)) || !((c_dr_pc == 1))) || !((p_dw_i == 1))) || !(((c_num_read + 1) == p_num_write))) || (\old(q_read_ev) == 0)) || !((1 == c_dr_i)))) [2023-12-02 12:34:37,740 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((!((p_dw_st == 0)) && !((q_read_ev == 1))) && (p_last_write == q_buf_0)) && ((c_num_read + 1) == p_num_write)) && !((c_dr_st == 0))) && (1 == c_dr_i)) && (q_free == 0)) && !((q_read_ev == 0))) && (c_dr_pc == 1)) && (p_dw_pc == 1)) && (p_dw_i == 1)) && !((q_write_ev == 1))) || ((((((((((((((((p_dw_pc == 0) && (c_dr_st == 0)) && (p_num_write == 0)) && (c_num_read == 0)) && (q_buf_0 == 0)) && (p_last_write == 0)) && (q_free == 1)) && (c_last_read == 0)) && (1 == c_dr_i)) && (q_req_up == 0)) && (q_write_ev == 2)) && (p_dw_st == 0)) && (q_read_ev == 2)) && (c_dr_pc == 0)) && (p_dw_i == 1)) && (a_t == 0))) || ((((((((((!((p_dw_st == 0)) && !((q_read_ev == 1))) && (p_last_write == q_buf_0)) && ((c_num_read + 1) == p_num_write)) && (1 == c_dr_i)) && (q_free == 0)) && !((q_read_ev == 0))) && (c_dr_pc == 1)) && (p_dw_pc == 1)) && (q_write_ev == 2)) && (p_dw_i == 1))) || (((((((((((((c_dr_st == 0) && (q_req_up == 1)) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (1 == c_dr_i)) && (q_free == 0)) && (p_dw_pc == 1)) && (q_write_ev == 2)) && (q_read_ev == 2)) && (c_dr_pc == 0)) && (2 == p_dw_st)) && (p_dw_i == 1)) && (p_num_write == 1))) || ((((((((((((!((q_read_ev == 1)) && (c_num_read == p_num_write)) && (p_last_write == q_buf_0)) && !((q_write_ev == 0))) && !((c_dr_st == 0))) && (1 == c_dr_i)) && (q_free == 0)) && !((q_read_ev == 0))) && (c_dr_pc == 1)) && (p_dw_pc == 1)) && (p_dw_st == 0)) && (p_dw_i == 1)) && !((q_write_ev == 1)))) || (((!((q_read_ev == 1)) && (c_num_read == p_num_write)) && (((((((((((q_req_up == 1) && (c_dr_st == 2)) && (p_last_write == q_buf_0)) && (q_free == 1)) && (1 == c_dr_i)) && (c_dr_pc == 1)) && (p_dw_pc == 1)) && (p_dw_st == 0)) && (p_dw_i == 1)) && !((q_write_ev == 1))) || ((((((((((c_dr_st == 2) && (p_last_write == q_buf_0)) && (q_free == 1)) && (1 == c_dr_i)) && (c_dr_pc == 1)) && (p_dw_pc == 1)) && (p_dw_st == 0)) && (\result == 1)) && (p_dw_i == 1)) && !((q_write_ev == 1))))) && !((q_read_ev == 0)))) || ((((((((((((((p_num_write == 0) && (c_num_read == 0)) && (c_dr_st == 2)) && (p_last_write == q_buf_0)) && (p_dw_pc <= 0)) && (q_free == 1)) && (1 == c_dr_i)) && (q_req_up == 0)) && (c_dr_pc == 1)) && (q_write_ev == 2)) && (p_dw_st == 0)) && (q_read_ev == 2)) && (p_dw_i == 1)) && (c_last_read == p_last_write))) || (((((((((((!((q_read_ev == 1)) && (c_num_read == p_num_write)) && (p_last_write == q_buf_0)) && !((q_write_ev == 0))) && (q_free == 1)) && !((c_dr_st == 0))) && (1 == c_dr_i)) && !((q_read_ev == 0))) && (c_dr_pc == 1)) && (p_dw_pc == 1)) && (p_dw_i == 1)) && !((q_write_ev == 1)))) [2023-12-02 12:34:37,801 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 12:34:37,801 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 12:34:37,801 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 12:34:37,802 INFO L158 Benchmark]: Toolchain (without parser) took 123472.60ms. Allocated memory was 153.1MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 117.4MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 93.0MB. Max. memory is 16.1GB. [2023-12-02 12:34:37,802 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 153.1MB. Free memory is still 127.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:34:37,803 INFO L158 Benchmark]: CACSL2BoogieTranslator took 371.72ms. Allocated memory is still 153.1MB. Free memory was 117.0MB in the beginning and 104.1MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 12:34:37,803 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.31ms. Allocated memory is still 153.1MB. Free memory was 104.1MB in the beginning and 102.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:34:37,804 INFO L158 Benchmark]: Boogie Preprocessor took 27.99ms. Allocated memory is still 153.1MB. Free memory was 102.1MB in the beginning and 100.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:34:37,804 INFO L158 Benchmark]: RCFGBuilder took 626.01ms. Allocated memory is still 153.1MB. Free memory was 100.6MB in the beginning and 73.6MB in the end (delta: 27.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-12-02 12:34:37,805 INFO L158 Benchmark]: TraceAbstraction took 122245.75ms. Allocated memory was 153.1MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 73.0MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 835.4MB. Max. memory is 16.1GB. [2023-12-02 12:34:37,805 INFO L158 Benchmark]: Witness Printer took 145.06ms. Allocated memory is still 1.4GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-02 12:34:37,807 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 153.1MB. Free memory is still 127.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 371.72ms. Allocated memory is still 153.1MB. Free memory was 117.0MB in the beginning and 104.1MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.31ms. Allocated memory is still 153.1MB. Free memory was 104.1MB in the beginning and 102.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.99ms. Allocated memory is still 153.1MB. Free memory was 102.1MB in the beginning and 100.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 626.01ms. Allocated memory is still 153.1MB. Free memory was 100.6MB in the beginning and 73.6MB in the end (delta: 27.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 122245.75ms. Allocated memory was 153.1MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 73.0MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 835.4MB. Max. memory is 16.1GB. * Witness Printer took 145.06ms. Allocated memory is still 1.4GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~tmp~2 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~tmp~2 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~kernel_st~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~tmp___1~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~tmp___1~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~tmp___1~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~tmp~2 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~kernel_st~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated * 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: 20]: 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, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 122.1s, OverallIterations: 20, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 29.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 41.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7509 SdHoareTripleChecker+Valid, 8.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7484 mSDsluCounter, 10605 SdHoareTripleChecker+Invalid, 7.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8524 mSDsCounter, 3514 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12236 IncrementalHoareTripleChecker+Invalid, 15750 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3514 mSolverCounterUnsat, 2081 mSDtfsCounter, 12236 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2720 GetRequests, 1901 SyntacticMatches, 18 SemanticMatches, 801 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 57856 ImplicationChecksByTransitivity, 38.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1665occurred in iteration=18, InterpolantAutomatonStates: 487, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.5s AutomataMinimizationTime, 20 MinimizatonAttempts, 5141 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 26 LocationsWithAnnotation, 2274 PreInvPairs, 2353 NumberOfFragments, 4883 HoareAnnotationTreeSize, 2274 FomulaSimplifications, 224608 FormulaSimplificationTreeSizeReduction, 24.9s HoareSimplificationTime, 26 FomulaSimplificationsInter, 277615 FormulaSimplificationTreeSizeReductionInter, 16.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 10.5s InterpolantComputationTime, 2870 NumberOfCodeBlocks, 2870 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 3425 ConstructedInterpolants, 0 QuantifiedInterpolants, 10754 SizeOfPredicates, 49 NumberOfNonLiveVariables, 4006 ConjunctsInSsa, 237 ConjunctsInUnsatCore, 36 InterpolantComputations, 16 PerfectInterpolantSequences, 1799/2084 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: OVERALL_TIME: 1.5s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 53, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 58, TOOLS_POST_TIME: 0.5s, TOOLS_POST_CALL_APPLICATIONS: 25, TOOLS_POST_CALL_TIME: 0.3s, TOOLS_POST_RETURN_APPLICATIONS: 18, TOOLS_POST_RETURN_TIME: 0.3s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 101, TOOLS_QUANTIFIERELIM_TIME: 1.0s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 160, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 21, DOMAIN_JOIN_TIME: 0.2s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 53, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.1s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.1s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 18, CALL_SUMMARIZER_CACHE_MISSES: 7, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 853, DAG_COMPRESSION_RETAINED_NODES: 148, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 180]: Loop Invariant Derived loop invariant: ((((((((((((((((((q_req_up == 1) && !((p_dw_st == 0))) && !((q_read_ev == 1))) && (c_num_read == p_num_write)) && (p_last_write == q_buf_0)) && !((q_write_ev == 0))) && (q_free == 1)) && !((c_dr_st == 0))) && (1 == c_dr_i)) && !((q_read_ev == 0))) && ((c_dr_pc == 1) || (c_dr_pc == 0))) && (p_dw_pc == 1)) && (p_dw_i == 1)) && (c_last_read == p_last_write)) && !((q_write_ev == 1))) || ((((((((((((((p_num_write == 0) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (p_dw_pc <= 0)) && (q_free == 1)) && !((c_dr_st == 0))) && (1 == c_dr_i)) && (q_req_up == 0)) && (q_write_ev == 2)) && (p_dw_st == 0)) && (q_read_ev == 2)) && (c_dr_pc == 0)) && (p_dw_i == 1)) && (c_last_read == p_last_write))) || (((((((((((((!((q_read_ev == 1)) && (c_num_read == p_num_write)) && (p_last_write == q_buf_0)) && !((q_write_ev == 0))) && (q_free == 1)) && !((c_dr_st == 0))) && (1 == c_dr_i)) && !((q_read_ev == 0))) && ((c_dr_pc == 1) || (c_dr_pc == 0))) && (p_dw_pc == 1)) && (2 == p_dw_st)) && (p_dw_i == 1)) && (c_last_read == p_last_write)) && !((q_write_ev == 1)))) || (((((((((((((q_req_up == 1) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && !((c_dr_st == 0))) && (1 == c_dr_i)) && (q_free == 0)) && (p_dw_pc == 1)) && (q_write_ev == 2)) && (q_read_ev == 2)) && (c_dr_pc == 0)) && (2 == p_dw_st)) && (p_dw_i == 1)) && (p_num_write == 1))) - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: (((((((((((((((((((p_dw_pc == 0) && (c_dr_st == 0)) && (p_num_write == 0)) && (c_num_read == 0)) && (q_buf_0 == 0)) && (p_last_write == 0)) && (q_free == 1)) && (c_last_read == 0)) && (1 == c_dr_i)) && (q_req_up == 0)) && (q_write_ev == 2)) && (p_dw_st == 1)) && (q_read_ev == 2)) && (c_dr_pc == 0)) && (p_dw_i == 1)) && (a_t == 0)) || (((((((((((((c_dr_st == 0) && (q_req_up == 1)) && !((p_dw_st == 0))) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (1 == c_dr_i)) && (q_free == 0)) && !((p_dw_pc == 1))) && (q_write_ev == 2)) && (q_read_ev == 2)) && (c_dr_pc == 0)) && (p_dw_i == 1)) && (p_num_write == 1))) || (((((((((((((p_num_write == 0) && !((p_dw_st == 0))) && (c_num_read == 0)) && (c_dr_st == 2)) && (p_last_write == q_buf_0)) && (q_free == 1)) && (1 == c_dr_i)) && (q_req_up == 0)) && (c_dr_pc == 1)) && !((p_dw_pc == 1))) && (q_write_ev == 2)) && (q_read_ev == 2)) && (p_dw_i == 1))) || (!((p_dw_st == 0)) && ((((((((((((((q_req_up == 1) && !((q_read_ev == 1))) && (p_last_write == q_buf_0)) && ((c_num_read + 1) == p_num_write)) && !((q_write_ev == 0))) && !((c_dr_st == 0))) && (1 == c_dr_i)) && (q_free == 0)) && !((q_read_ev == 0))) && (c_dr_pc == 1)) && (p_dw_pc == 1)) && (p_dw_i == 1)) && !((q_write_ev == 1))) || (((((((((((q_req_up == 1) && !((q_read_ev == 1))) && (c_dr_st == 2)) && (p_last_write == q_buf_0)) && ((c_num_read + 1) == p_num_write)) && (1 == c_dr_i)) && (q_free == 0)) && !((q_read_ev == 0))) && (c_dr_pc == 1)) && (p_dw_i == 1)) && !((q_write_ev == 1)))))) - InvariantResult [Line: 419]: Loop Invariant Derived loop invariant: ((((((((((((((!((p_dw_st == 0)) && !((q_read_ev == 1))) && (p_last_write == q_buf_0)) && ((c_num_read + 1) == p_num_write)) && !((c_dr_st == 0))) && (1 == c_dr_i)) && (q_free == 0)) && !((q_read_ev == 0))) && (c_dr_pc == 1)) && (p_dw_pc == 1)) && (p_dw_i == 1)) && !((q_write_ev == 1))) || ((((((((((!((p_dw_st == 0)) && !((q_read_ev == 1))) && (p_last_write == q_buf_0)) && ((c_num_read + 1) == p_num_write)) && (1 == c_dr_i)) && (q_free == 0)) && !((q_read_ev == 0))) && (c_dr_pc == 1)) && (p_dw_pc == 1)) && (q_write_ev == 2)) && (p_dw_i == 1))) || ((((((((((((((((p_dw_pc == 0) && (c_dr_st == 0)) && (p_num_write == 0)) && (c_num_read == 0)) && (q_buf_0 == 0)) && (p_last_write == 0)) && (q_free == 1)) && (c_last_read == 0)) && (1 == c_dr_i)) && (q_req_up == 0)) && (q_write_ev == 2)) && (p_dw_st == 0)) && (q_read_ev == 2)) && (c_dr_pc == 0)) && (p_dw_i == 1)) && (a_t == 0))) || (((((((((((!((q_read_ev == 1)) && (c_num_read == p_num_write)) && (p_last_write == q_buf_0)) && !((q_write_ev == 0))) && (q_free == 1)) && !((c_dr_st == 0))) && (1 == c_dr_i)) && !((q_read_ev == 0))) && (c_dr_pc == 1)) && (p_dw_pc == 1)) && (p_dw_i == 1)) && !((q_write_ev == 1)))) - InvariantResult [Line: 218]: Loop Invariant Derived loop invariant: ((((((((((((((c_dr_st == 0) || (\old(q_read_ev) == 1)) || (((q_write_ev == \old(q_write_ev)) && (\old(q_read_ev) == q_read_ev)) && (q_req_up == \old(q_req_up)))) || (\old(q_write_ev) == 1)) || !((p_last_write == q_buf_0))) || !((p_dw_pc == 1))) || !((c_num_read == p_num_write))) || !((c_dr_pc == 1))) || !((p_dw_i == 1))) || (\old(q_write_ev) == 0)) || !((q_free == 1))) || (\old(q_read_ev) == 0)) || !((1 == c_dr_i))) && (((((((((((((c_dr_st == 0) || (\old(q_read_ev) == 1)) || (((q_write_ev == \old(q_write_ev)) && (\old(q_read_ev) == q_read_ev)) && (q_req_up == \old(q_req_up)))) || (\old(q_write_ev) == 1)) || !((p_last_write == q_buf_0))) || !((q_free == 0))) || !((p_dw_pc == 1))) || (p_dw_st == 0)) || !((c_dr_pc == 1))) || !((p_dw_i == 1))) || !(((c_num_read + 1) == p_num_write))) || (\old(q_read_ev) == 0)) || !((1 == c_dr_i)))) - InvariantResult [Line: 339]: Loop Invariant Derived loop invariant: ((((((((((((((((((!((p_dw_st == 0)) && !((q_read_ev == 1))) && (p_last_write == q_buf_0)) && ((c_num_read + 1) == p_num_write)) && !((c_dr_st == 0))) && (1 == c_dr_i)) && (q_free == 0)) && !((q_read_ev == 0))) && (c_dr_pc == 1)) && (p_dw_pc == 1)) && (p_dw_i == 1)) && !((q_write_ev == 1))) || ((((((((((((((((p_dw_pc == 0) && (c_dr_st == 0)) && (p_num_write == 0)) && (c_num_read == 0)) && (q_buf_0 == 0)) && (p_last_write == 0)) && (q_free == 1)) && (c_last_read == 0)) && (1 == c_dr_i)) && (q_req_up == 0)) && (q_write_ev == 2)) && (p_dw_st == 0)) && (q_read_ev == 2)) && (c_dr_pc == 0)) && (p_dw_i == 1)) && (a_t == 0))) || ((((((((((!((p_dw_st == 0)) && !((q_read_ev == 1))) && (p_last_write == q_buf_0)) && ((c_num_read + 1) == p_num_write)) && (1 == c_dr_i)) && (q_free == 0)) && !((q_read_ev == 0))) && (c_dr_pc == 1)) && (p_dw_pc == 1)) && (q_write_ev == 2)) && (p_dw_i == 1))) || (((((((((((((c_dr_st == 0) && (q_req_up == 1)) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (1 == c_dr_i)) && (q_free == 0)) && (p_dw_pc == 1)) && (q_write_ev == 2)) && (q_read_ev == 2)) && (c_dr_pc == 0)) && (2 == p_dw_st)) && (p_dw_i == 1)) && (p_num_write == 1))) || ((((((((((((!((q_read_ev == 1)) && (c_num_read == p_num_write)) && (p_last_write == q_buf_0)) && !((q_write_ev == 0))) && !((c_dr_st == 0))) && (1 == c_dr_i)) && (q_free == 0)) && !((q_read_ev == 0))) && (c_dr_pc == 1)) && (p_dw_pc == 1)) && (p_dw_st == 0)) && (p_dw_i == 1)) && !((q_write_ev == 1)))) || (((!((q_read_ev == 1)) && (c_num_read == p_num_write)) && (((((((((((q_req_up == 1) && (c_dr_st == 2)) && (p_last_write == q_buf_0)) && (q_free == 1)) && (1 == c_dr_i)) && (c_dr_pc == 1)) && (p_dw_pc == 1)) && (p_dw_st == 0)) && (p_dw_i == 1)) && !((q_write_ev == 1))) || ((((((((((c_dr_st == 2) && (p_last_write == q_buf_0)) && (q_free == 1)) && (1 == c_dr_i)) && (c_dr_pc == 1)) && (p_dw_pc == 1)) && (p_dw_st == 0)) && (\result == 1)) && (p_dw_i == 1)) && !((q_write_ev == 1))))) && !((q_read_ev == 0)))) || ((((((((((((((p_num_write == 0) && (c_num_read == 0)) && (c_dr_st == 2)) && (p_last_write == q_buf_0)) && (p_dw_pc <= 0)) && (q_free == 1)) && (1 == c_dr_i)) && (q_req_up == 0)) && (c_dr_pc == 1)) && (q_write_ev == 2)) && (p_dw_st == 0)) && (q_read_ev == 2)) && (p_dw_i == 1)) && (c_last_read == p_last_write))) || (((((((((((!((q_read_ev == 1)) && (c_num_read == p_num_write)) && (p_last_write == q_buf_0)) && !((q_write_ev == 0))) && (q_free == 1)) && !((c_dr_st == 0))) && (1 == c_dr_i)) && !((q_read_ev == 0))) && (c_dr_pc == 1)) && (p_dw_pc == 1)) && (p_dw_i == 1)) && !((q_write_ev == 1)))) - InvariantResult [Line: 251]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-12-02 12:34:37,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa1a6c1-9f2a-41c3-8f6c-8ef0c710a53f/bin/utaipan-verify-nQ1chXbOIh/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