./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/transmitter.01.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caccd3bd-b504-4af0-82e4-f0a11b76d229/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caccd3bd-b504-4af0-82e4-f0a11b76d229/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caccd3bd-b504-4af0-82e4-f0a11b76d229/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caccd3bd-b504-4af0-82e4-f0a11b76d229/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/systemc/transmitter.01.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caccd3bd-b504-4af0-82e4-f0a11b76d229/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caccd3bd-b504-4af0-82e4-f0a11b76d229/bin/utaipan-verify-YMUCfTKeje --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 ea17b00cb6ed3e05e0ac7861fb220a62ceca6ba97bc4fe703ce3eb0d0ec5cbfe --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:16:39,735 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:16:39,806 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caccd3bd-b504-4af0-82e4-f0a11b76d229/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:16:39,810 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:16:39,811 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:16:39,847 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:16:39,849 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:16:39,850 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:16:39,850 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:16:39,853 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:16:39,854 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:16:39,854 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:16:39,854 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:16:39,855 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:16:39,855 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:16:39,855 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:16:39,856 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:16:39,856 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:16:39,856 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:16:39,860 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:16:39,861 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:16:39,861 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:16:39,862 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:16:39,862 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:16:39,863 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:16:39,863 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:16:39,864 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:16:39,864 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:16:39,864 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:16:39,865 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:16:39,865 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:16:39,865 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:16:39,866 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:16:39,866 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:16:39,866 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:16:39,867 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:16:39,867 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:16:39,867 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:16:39,868 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:16:39,868 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:16:39,868 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:16:39,870 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:16:39,870 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:16:39,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:16:39,871 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:16:39,872 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:16:39,872 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:16:39,872 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_caccd3bd-b504-4af0-82e4-f0a11b76d229/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caccd3bd-b504-4af0-82e4-f0a11b76d229/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea17b00cb6ed3e05e0ac7861fb220a62ceca6ba97bc4fe703ce3eb0d0ec5cbfe [2024-11-09 05:16:40,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:16:40,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:16:40,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:16:40,206 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:16:40,206 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:16:40,207 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caccd3bd-b504-4af0-82e4-f0a11b76d229/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/systemc/transmitter.01.cil.c Unable to find full path for "g++" [2024-11-09 05:16:42,275 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:16:42,520 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:16:42,520 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caccd3bd-b504-4af0-82e4-f0a11b76d229/sv-benchmarks/c/systemc/transmitter.01.cil.c [2024-11-09 05:16:42,536 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caccd3bd-b504-4af0-82e4-f0a11b76d229/bin/utaipan-verify-YMUCfTKeje/data/0e414d1c0/71bcad1d0bc24c3f86e74b0b0b665329/FLAG5cc6d425b [2024-11-09 05:16:42,556 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caccd3bd-b504-4af0-82e4-f0a11b76d229/bin/utaipan-verify-YMUCfTKeje/data/0e414d1c0/71bcad1d0bc24c3f86e74b0b0b665329 [2024-11-09 05:16:42,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:16:42,563 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:16:42,564 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:16:42,564 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:16:42,575 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:16:42,576 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:16:42" (1/1) ... [2024-11-09 05:16:42,578 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f9c0fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:42, skipping insertion in model container [2024-11-09 05:16:42,578 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:16:42" (1/1) ... [2024-11-09 05:16:42,631 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:16:42,882 WARN L250 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_caccd3bd-b504-4af0-82e4-f0a11b76d229/sv-benchmarks/c/systemc/transmitter.01.cil.c[706,719] [2024-11-09 05:16:42,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:16:42,949 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:16:42,964 WARN L250 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_caccd3bd-b504-4af0-82e4-f0a11b76d229/sv-benchmarks/c/systemc/transmitter.01.cil.c[706,719] [2024-11-09 05:16:42,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:16:43,010 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:16:43,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:43 WrapperNode [2024-11-09 05:16:43,010 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:16:43,012 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:16:43,012 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:16:43,012 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:16:43,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:43" (1/1) ... [2024-11-09 05:16:43,030 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:43" (1/1) ... [2024-11-09 05:16:43,057 INFO L138 Inliner]: procedures = 30, calls = 33, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 207 [2024-11-09 05:16:43,057 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:16:43,058 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:16:43,058 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:16:43,059 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:16:43,069 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:43" (1/1) ... [2024-11-09 05:16:43,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:43" (1/1) ... [2024-11-09 05:16:43,072 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:43" (1/1) ... [2024-11-09 05:16:43,076 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:43" (1/1) ... [2024-11-09 05:16:43,085 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:43" (1/1) ... [2024-11-09 05:16:43,098 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:43" (1/1) ... [2024-11-09 05:16:43,100 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:43" (1/1) ... [2024-11-09 05:16:43,101 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:43" (1/1) ... [2024-11-09 05:16:43,108 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:16:43,109 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:16:43,109 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:16:43,109 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:16:43,110 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:43" (1/1) ... [2024-11-09 05:16:43,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:16:43,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caccd3bd-b504-4af0-82e4-f0a11b76d229/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:16:43,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caccd3bd-b504-4af0-82e4-f0a11b76d229/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:16:43,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caccd3bd-b504-4af0-82e4-f0a11b76d229/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:16:43,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:16:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-09 05:16:43,191 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-09 05:16:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-09 05:16:43,193 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-09 05:16:43,194 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-09 05:16:43,194 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-09 05:16:43,194 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-09 05:16:43,194 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-09 05:16:43,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:16:43,195 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-09 05:16:43,195 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-09 05:16:43,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:16:43,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:16:43,290 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:16:43,292 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:16:43,614 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2024-11-09 05:16:43,614 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:16:43,771 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:16:43,771 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-09 05:16:43,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:16:43 BoogieIcfgContainer [2024-11-09 05:16:43,772 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:16:43,776 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:16:43,778 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:16:43,783 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:16:43,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:16:42" (1/3) ... [2024-11-09 05:16:43,785 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c3c32c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:16:43, skipping insertion in model container [2024-11-09 05:16:43,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:43" (2/3) ... [2024-11-09 05:16:43,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c3c32c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:16:43, skipping insertion in model container [2024-11-09 05:16:43,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:16:43" (3/3) ... [2024-11-09 05:16:43,787 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.01.cil.c [2024-11-09 05:16:43,806 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:16:43,806 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:16:43,869 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:16:43,875 INFO L333 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, 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;@3d330d7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:16:43,876 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:16:43,879 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 44 states have (on average 1.4545454545454546) internal successors, (64), 46 states have internal predecessors, (64), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 05:16:43,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 05:16:43,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:43,888 INFO L215 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] [2024-11-09 05:16:43,889 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:16:43,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:43,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1630122487, now seen corresponding path program 1 times [2024-11-09 05:16:43,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:43,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026630828] [2024-11-09 05:16:43,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:43,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:44,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:44,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:44,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026630828] [2024-11-09 05:16:44,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026630828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:44,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:44,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:16:44,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659961147] [2024-11-09 05:16:44,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:44,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:16:44,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:44,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:16:44,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:16:44,400 INFO L87 Difference]: Start difference. First operand has 64 states, 44 states have (on average 1.4545454545454546) internal successors, (64), 46 states have internal predecessors, (64), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:16:44,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:44,719 INFO L93 Difference]: Finished difference Result 175 states and 248 transitions. [2024-11-09 05:16:44,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:16:44,722 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 33 [2024-11-09 05:16:44,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:44,732 INFO L225 Difference]: With dead ends: 175 [2024-11-09 05:16:44,732 INFO L226 Difference]: Without dead ends: 112 [2024-11-09 05:16:44,735 INFO L431 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 [2024-11-09 05:16:44,738 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 134 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:44,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 182 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:16:44,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-09 05:16:44,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 109. [2024-11-09 05:16:44,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 77 states have (on average 1.2727272727272727) internal successors, (98), 78 states have internal predecessors, (98), 21 states have call successors, (21), 10 states have call predecessors, (21), 10 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-09 05:16:44,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 140 transitions. [2024-11-09 05:16:44,818 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 140 transitions. Word has length 33 [2024-11-09 05:16:44,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:44,819 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 140 transitions. [2024-11-09 05:16:44,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:16:44,820 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 140 transitions. [2024-11-09 05:16:44,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 05:16:44,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:44,822 INFO L215 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] [2024-11-09 05:16:44,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:16:44,823 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:16:44,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:44,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1884863880, now seen corresponding path program 1 times [2024-11-09 05:16:44,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:44,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848680742] [2024-11-09 05:16:44,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:44,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:45,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:45,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:45,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848680742] [2024-11-09 05:16:45,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848680742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:45,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:45,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 05:16:45,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349028502] [2024-11-09 05:16:45,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:45,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:16:45,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:45,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:16:45,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:16:45,165 INFO L87 Difference]: Start difference. First operand 109 states and 140 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:16:45,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:45,604 INFO L93 Difference]: Finished difference Result 276 states and 350 transitions. [2024-11-09 05:16:45,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 05:16:45,605 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 33 [2024-11-09 05:16:45,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:45,608 INFO L225 Difference]: With dead ends: 276 [2024-11-09 05:16:45,609 INFO L226 Difference]: Without dead ends: 173 [2024-11-09 05:16:45,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-09 05:16:45,611 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 163 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:45,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 203 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:16:45,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-09 05:16:45,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 164. [2024-11-09 05:16:45,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 118 states have (on average 1.2627118644067796) internal successors, (149), 119 states have internal predecessors, (149), 29 states have call successors, (29), 16 states have call predecessors, (29), 16 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-09 05:16:45,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 207 transitions. [2024-11-09 05:16:45,643 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 207 transitions. Word has length 33 [2024-11-09 05:16:45,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:45,644 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 207 transitions. [2024-11-09 05:16:45,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:16:45,644 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 207 transitions. [2024-11-09 05:16:45,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 05:16:45,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:45,646 INFO L215 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] [2024-11-09 05:16:45,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:16:45,646 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:16:45,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:45,647 INFO L85 PathProgramCache]: Analyzing trace with hash -641175159, now seen corresponding path program 1 times [2024-11-09 05:16:45,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:45,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124033523] [2024-11-09 05:16:45,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:45,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:45,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:45,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:45,725 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:45,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124033523] [2024-11-09 05:16:45,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124033523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:45,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:45,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:16:45,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740988469] [2024-11-09 05:16:45,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:45,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:16:45,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:45,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:16:45,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:45,730 INFO L87 Difference]: Start difference. First operand 164 states and 207 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 05:16:45,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:45,835 INFO L93 Difference]: Finished difference Result 472 states and 596 transitions. [2024-11-09 05:16:45,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:16:45,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 35 [2024-11-09 05:16:45,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:45,839 INFO L225 Difference]: With dead ends: 472 [2024-11-09 05:16:45,839 INFO L226 Difference]: Without dead ends: 313 [2024-11-09 05:16:45,840 INFO L431 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 [2024-11-09 05:16:45,842 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 58 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:45,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 137 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:16:45,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-09 05:16:45,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 310. [2024-11-09 05:16:45,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 223 states have (on average 1.2152466367713004) internal successors, (271), 224 states have internal predecessors, (271), 54 states have call successors, (54), 32 states have call predecessors, (54), 32 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-09 05:16:45,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 379 transitions. [2024-11-09 05:16:45,922 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 379 transitions. Word has length 35 [2024-11-09 05:16:45,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:45,922 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 379 transitions. [2024-11-09 05:16:45,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 05:16:45,923 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 379 transitions. [2024-11-09 05:16:45,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-09 05:16:45,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:45,926 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 05:16:45,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:16:45,927 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:16:45,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:45,929 INFO L85 PathProgramCache]: Analyzing trace with hash -727614361, now seen corresponding path program 1 times [2024-11-09 05:16:45,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:45,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982458550] [2024-11-09 05:16:45,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:45,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:46,009 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:16:46,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:46,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982458550] [2024-11-09 05:16:46,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982458550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:46,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:46,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:16:46,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953123419] [2024-11-09 05:16:46,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:46,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:16:46,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:46,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:16:46,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:46,013 INFO L87 Difference]: Start difference. First operand 310 states and 379 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:16:46,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:46,113 INFO L93 Difference]: Finished difference Result 568 states and 699 transitions. [2024-11-09 05:16:46,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:16:46,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 49 [2024-11-09 05:16:46,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:46,117 INFO L225 Difference]: With dead ends: 568 [2024-11-09 05:16:46,118 INFO L226 Difference]: Without dead ends: 410 [2024-11-09 05:16:46,119 INFO L431 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 [2024-11-09 05:16:46,120 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 34 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:46,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 161 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:16:46,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2024-11-09 05:16:46,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 346. [2024-11-09 05:16:46,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 253 states have (on average 1.2134387351778657) internal successors, (307), 254 states have internal predecessors, (307), 57 states have call successors, (57), 35 states have call predecessors, (57), 35 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-09 05:16:46,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 421 transitions. [2024-11-09 05:16:46,174 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 421 transitions. Word has length 49 [2024-11-09 05:16:46,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:46,176 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 421 transitions. [2024-11-09 05:16:46,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:16:46,176 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 421 transitions. [2024-11-09 05:16:46,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 05:16:46,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:46,182 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 05:16:46,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 05:16:46,182 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:16:46,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:46,183 INFO L85 PathProgramCache]: Analyzing trace with hash 384305894, now seen corresponding path program 1 times [2024-11-09 05:16:46,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:46,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041925667] [2024-11-09 05:16:46,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:46,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:46,286 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 05:16:46,288 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:46,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041925667] [2024-11-09 05:16:46,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041925667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:46,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:46,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:16:46,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499476633] [2024-11-09 05:16:46,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:46,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:16:46,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:46,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:16:46,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:16:46,292 INFO L87 Difference]: Start difference. First operand 346 states and 421 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:16:46,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:46,513 INFO L93 Difference]: Finished difference Result 540 states and 667 transitions. [2024-11-09 05:16:46,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:16:46,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 63 [2024-11-09 05:16:46,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:46,517 INFO L225 Difference]: With dead ends: 540 [2024-11-09 05:16:46,517 INFO L226 Difference]: Without dead ends: 346 [2024-11-09 05:16:46,520 INFO L431 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 [2024-11-09 05:16:46,522 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 129 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:46,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 182 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:16:46,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-09 05:16:46,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 342. [2024-11-09 05:16:46,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 249 states have (on average 1.176706827309237) internal successors, (293), 250 states have internal predecessors, (293), 57 states have call successors, (57), 35 states have call predecessors, (57), 35 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-09 05:16:46,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 407 transitions. [2024-11-09 05:16:46,581 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 407 transitions. Word has length 63 [2024-11-09 05:16:46,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:46,582 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 407 transitions. [2024-11-09 05:16:46,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:16:46,582 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 407 transitions. [2024-11-09 05:16:46,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 05:16:46,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:46,590 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 05:16:46,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:16:46,590 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:16:46,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:46,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1663630629, now seen corresponding path program 1 times [2024-11-09 05:16:46,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:46,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119711667] [2024-11-09 05:16:46,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:46,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:16:46,617 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:16:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:16:46,688 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 05:16:46,688 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:16:46,690 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 05:16:46,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 05:16:46,698 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-09 05:16:46,777 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:16:46,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:16:46 BoogieIcfgContainer [2024-11-09 05:16:46,783 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:16:46,784 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:16:46,784 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:16:46,784 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:16:46,785 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:16:43" (3/4) ... [2024-11-09 05:16:46,786 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 05:16:46,883 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caccd3bd-b504-4af0-82e4-f0a11b76d229/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 05:16:46,883 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:16:46,884 INFO L158 Benchmark]: Toolchain (without parser) took 4321.71ms. Allocated memory was 159.4MB in the beginning and 216.0MB in the end (delta: 56.6MB). Free memory was 118.9MB in the beginning and 72.1MB in the end (delta: 46.8MB). Peak memory consumption was 104.0MB. Max. memory is 16.1GB. [2024-11-09 05:16:46,885 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 159.4MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:16:46,885 INFO L158 Benchmark]: CACSL2BoogieTranslator took 446.88ms. Allocated memory is still 159.4MB. Free memory was 118.3MB in the beginning and 103.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 05:16:46,885 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.69ms. Allocated memory is still 159.4MB. Free memory was 103.6MB in the beginning and 101.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:16:46,886 INFO L158 Benchmark]: Boogie Preprocessor took 49.77ms. Allocated memory is still 159.4MB. Free memory was 101.5MB in the beginning and 100.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:16:46,886 INFO L158 Benchmark]: RCFGBuilder took 663.14ms. Allocated memory is still 159.4MB. Free memory was 100.0MB in the beginning and 71.6MB in the end (delta: 28.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-09 05:16:46,887 INFO L158 Benchmark]: TraceAbstraction took 3007.07ms. Allocated memory was 159.4MB in the beginning and 216.0MB in the end (delta: 56.6MB). Free memory was 70.6MB in the beginning and 78.3MB in the end (delta: -7.7MB). Peak memory consumption was 51.6MB. Max. memory is 16.1GB. [2024-11-09 05:16:46,887 INFO L158 Benchmark]: Witness Printer took 99.70ms. Allocated memory is still 216.0MB. Free memory was 78.3MB in the beginning and 72.1MB in the end (delta: 6.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 05:16:46,889 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 159.4MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 446.88ms. Allocated memory is still 159.4MB. Free memory was 118.3MB in the beginning and 103.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.69ms. Allocated memory is still 159.4MB. Free memory was 103.6MB in the beginning and 101.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.77ms. Allocated memory is still 159.4MB. Free memory was 101.5MB in the beginning and 100.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 663.14ms. Allocated memory is still 159.4MB. Free memory was 100.0MB in the beginning and 71.6MB in the end (delta: 28.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3007.07ms. Allocated memory was 159.4MB in the beginning and 216.0MB in the end (delta: 56.6MB). Free memory was 70.6MB in the beginning and 78.3MB in the end (delta: -7.7MB). Peak memory consumption was 51.6MB. Max. memory is 16.1GB. * Witness Printer took 99.70ms. Allocated memory is still 216.0MB. Free memory was 78.3MB in the beginning and 72.1MB in the end (delta: 6.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 21]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L25] int m_pc = 0; [L26] int t1_pc = 0; [L27] int m_st ; [L28] int t1_st ; [L29] int m_i ; [L30] int t1_i ; [L31] int M_E = 2; [L32] int T1_E = 2; [L33] int E_1 = 2; [L449] int __retres1 ; [L453] CALL init_model() [L364] m_i = 1 [L365] t1_i = 1 [L453] RET init_model() [L454] CALL start_simulation() [L390] int kernel_st ; [L391] int tmp ; [L392] int tmp___0 ; [L396] kernel_st = 0 VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L397] FCALL update_channels() VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L398] CALL init_threads() [L161] COND TRUE m_i == 1 [L162] m_st = 0 [L166] COND TRUE t1_i == 1 [L167] t1_st = 0 [L398] RET init_threads() [L399] CALL fire_delta_events() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L250] COND FALSE !(M_E == 0) [L255] COND FALSE !(T1_E == 0) [L260] COND FALSE !(E_1 == 0) [L399] RET fire_delta_events() VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L400] CALL activate_threads() VAL [E_1=2, M_E=2, T1_E=2, \old(m_st)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L293] int tmp ; [L294] int tmp___0 ; [L298] CALL, EXPR is_master_triggered() [L112] int __retres1 ; VAL [E_1=2, M_E=2, T1_E=2, \old(m_st)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L115] COND FALSE !(m_pc == 1) VAL [E_1=2, M_E=2, T1_E=2, \old(m_st)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L125] __retres1 = 0 VAL [E_1=2, M_E=2, T1_E=2, \old(m_st)=0, \old(t1_st)=0, __retres1=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L127] return (__retres1); [L298] RET, EXPR is_master_triggered() [L298] tmp = is_master_triggered() [L300] COND FALSE !(\read(tmp)) [L306] CALL, EXPR is_transmit1_triggered() [L131] int __retres1 ; VAL [E_1=2, M_E=2, T1_E=2, \old(m_st)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L134] COND FALSE !(t1_pc == 1) VAL [E_1=2, M_E=2, T1_E=2, \old(m_st)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L144] __retres1 = 0 VAL [E_1=2, M_E=2, T1_E=2, \old(m_st)=0, \old(t1_st)=0, __retres1=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L146] return (__retres1); [L306] RET, EXPR is_transmit1_triggered() [L306] tmp___0 = is_transmit1_triggered() [L308] COND FALSE !(\read(tmp___0)) [L400] RET activate_threads() VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L401] CALL reset_delta_events() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L273] COND FALSE !(M_E == 1) [L278] COND FALSE !(T1_E == 1) [L283] COND FALSE !(E_1 == 1) [L401] RET reset_delta_events() VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L404] COND TRUE 1 [L407] kernel_st = 1 [L408] CALL eval() [L197] int tmp ; VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L201] COND TRUE 1 VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L204] CALL, EXPR exists_runnable_thread() VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L176] int __retres1 ; [L179] COND TRUE m_st == 0 [L180] __retres1 = 1 [L192] return (__retres1); [L204] RET, EXPR exists_runnable_thread() VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L204] tmp = exists_runnable_thread() [L206] COND TRUE \read(tmp) VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L211] COND TRUE m_st == 0 [L212] int tmp_ndt_1; [L213] tmp_ndt_1 = __VERIFIER_nondet_int() [L214] COND FALSE !(\read(tmp_ndt_1)) VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L225] COND TRUE t1_st == 0 [L226] int tmp_ndt_2; [L227] tmp_ndt_2 = __VERIFIER_nondet_int() [L228] COND TRUE \read(tmp_ndt_2) [L230] t1_st = 1 [L231] CALL transmit1() [L82] COND TRUE t1_pc == 0 VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=1] [L93] COND TRUE 1 [L95] t1_pc = 1 [L96] t1_st = 2 [L231] RET transmit1() [L201] COND TRUE 1 VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2] [L204] CALL, EXPR exists_runnable_thread() VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2] [L176] int __retres1 ; [L179] COND TRUE m_st == 0 [L180] __retres1 = 1 [L192] return (__retres1); [L204] RET, EXPR exists_runnable_thread() VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2] [L204] tmp = exists_runnable_thread() [L206] COND TRUE \read(tmp) VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2] [L211] COND TRUE m_st == 0 [L212] int tmp_ndt_1; [L213] tmp_ndt_1 = __VERIFIER_nondet_int() [L214] COND TRUE \read(tmp_ndt_1) [L216] m_st = 1 [L217] CALL master() [L41] COND TRUE m_pc == 0 VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L52] COND TRUE 1 [L55] E_1 = 1 [L56] CALL immediate_notify() [L322] CALL activate_threads() VAL [E_1=1, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L293] int tmp ; [L294] int tmp___0 ; [L298] CALL, EXPR is_master_triggered() [L112] int __retres1 ; VAL [E_1=1, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L115] COND FALSE !(m_pc == 1) VAL [E_1=1, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L125] __retres1 = 0 VAL [E_1=1, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, __retres1=0, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L127] return (__retres1); [L298] RET, EXPR is_master_triggered() [L298] tmp = is_master_triggered() [L300] COND FALSE !(\read(tmp)) [L306] CALL, EXPR is_transmit1_triggered() [L131] int __retres1 ; VAL [E_1=1, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L134] COND TRUE t1_pc == 1 VAL [E_1=1, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L135] COND TRUE E_1 == 1 [L136] __retres1 = 1 VAL [E_1=1, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, __retres1=1, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L146] return (__retres1); [L306] RET, EXPR is_transmit1_triggered() [L306] tmp___0 = is_transmit1_triggered() [L308] COND TRUE \read(tmp___0) [L309] t1_st = 0 [L322] RET activate_threads() VAL [E_1=1, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0] [L56] RET immediate_notify() [L57] E_1 = 2 VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0] [L60] COND TRUE 1 [L62] m_pc = 1 [L63] m_st = 2 VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=0] [L217] RET master() [L225] COND TRUE t1_st == 0 [L226] int tmp_ndt_2; [L227] tmp_ndt_2 = __VERIFIER_nondet_int() [L228] COND TRUE \read(tmp_ndt_2) [L230] t1_st = 1 [L231] CALL transmit1() [L82] COND FALSE !(t1_pc == 0) VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1] [L85] COND TRUE t1_pc == 1 [L101] CALL error() [L21] reach_error() VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 525 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 518 mSDsluCounter, 865 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 386 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 448 IncrementalHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 479 mSDtfsCounter, 448 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=346occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 83 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 276 NumberOfCodeBlocks, 276 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 208 ConstructedInterpolants, 0 QuantifiedInterpolants, 349 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 32/32 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-09 05:16:46,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caccd3bd-b504-4af0-82e4-f0a11b76d229/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE