./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc45a05-369f-49e6-9158-f141b238958f/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc45a05-369f-49e6-9158-f141b238958f/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_8cc45a05-369f-49e6-9158-f141b238958f/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc45a05-369f-49e6-9158-f141b238958f/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc45a05-369f-49e6-9158-f141b238958f/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_8cc45a05-369f-49e6-9158-f141b238958f/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 5093baaae269ae8f20fbce19a6dc2a002c438d5951124b2c99d459b145e3e5a5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:36:47,136 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:36:47,226 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc45a05-369f-49e6-9158-f141b238958f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 19:36:47,232 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:36:47,232 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:36:47,259 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:36:47,259 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:36:47,260 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:36:47,261 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:36:47,261 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:36:47,262 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:36:47,262 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:36:47,263 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:36:47,264 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:36:47,264 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:36:47,265 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:36:47,265 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:36:47,266 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:36:47,266 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:36:47,267 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:36:47,267 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:36:47,268 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:36:47,269 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:36:47,270 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:36:47,270 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 19:36:47,271 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:36:47,271 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 19:36:47,272 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:36:47,272 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:36:47,272 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:36:47,273 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:36:47,273 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 19:36:47,273 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:36:47,274 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:36:47,274 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:36:47,274 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:36:47,274 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:36:47,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:36:47,275 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:36:47,275 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:36:47,275 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:36:47,276 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:36:47,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:36:47,276 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:36:47,276 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:36:47,277 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:36:47,277 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:36:47,277 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_8cc45a05-369f-49e6-9158-f141b238958f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc45a05-369f-49e6-9158-f141b238958f/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5093baaae269ae8f20fbce19a6dc2a002c438d5951124b2c99d459b145e3e5a5 [2023-12-02 19:36:47,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:36:47,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:36:47,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:36:47,579 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:36:47,579 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:36:47,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc45a05-369f-49e6-9158-f141b238958f/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i [2023-12-02 19:36:50,599 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:36:50,846 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:36:50,846 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc45a05-369f-49e6-9158-f141b238958f/sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i [2023-12-02 19:36:50,865 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc45a05-369f-49e6-9158-f141b238958f/bin/utaipan-verify-nQ1chXbOIh/data/3a8125c02/9fdef2db022f4fac97ebde907ad087af/FLAGa76286b93 [2023-12-02 19:36:50,882 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc45a05-369f-49e6-9158-f141b238958f/bin/utaipan-verify-nQ1chXbOIh/data/3a8125c02/9fdef2db022f4fac97ebde907ad087af [2023-12-02 19:36:50,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:36:50,887 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:36:50,889 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:36:50,889 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:36:50,895 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:36:50,896 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:36:50" (1/1) ... [2023-12-02 19:36:50,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3577fc9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:50, skipping insertion in model container [2023-12-02 19:36:50,898 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:36:50" (1/1) ... [2023-12-02 19:36:50,971 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:36:51,179 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_8cc45a05-369f-49e6-9158-f141b238958f/sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i[1093,1106] [2023-12-02 19:36:51,348 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:36:51,365 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:36:51,379 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_8cc45a05-369f-49e6-9158-f141b238958f/sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i[1093,1106] [2023-12-02 19:36:51,411 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:36:51,456 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:36:51,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:51 WrapperNode [2023-12-02 19:36:51,457 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:36:51,458 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:36:51,458 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:36:51,458 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:36:51,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:51" (1/1) ... [2023-12-02 19:36:51,484 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:51" (1/1) ... [2023-12-02 19:36:51,509 INFO L138 Inliner]: procedures = 163, calls = 40, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 62 [2023-12-02 19:36:51,510 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:36:51,510 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:36:51,510 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:36:51,511 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:36:51,521 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:51" (1/1) ... [2023-12-02 19:36:51,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:51" (1/1) ... [2023-12-02 19:36:51,525 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:51" (1/1) ... [2023-12-02 19:36:51,525 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:51" (1/1) ... [2023-12-02 19:36:51,532 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:51" (1/1) ... [2023-12-02 19:36:51,534 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:51" (1/1) ... [2023-12-02 19:36:51,536 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:51" (1/1) ... [2023-12-02 19:36:51,538 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:51" (1/1) ... [2023-12-02 19:36:51,541 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:36:51,542 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:36:51,543 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:36:51,543 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:36:51,544 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:51" (1/1) ... [2023-12-02 19:36:51,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:36:51,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc45a05-369f-49e6-9158-f141b238958f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:36:51,579 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc45a05-369f-49e6-9158-f141b238958f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:36:51,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc45a05-369f-49e6-9158-f141b238958f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:36:51,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 19:36:51,619 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-02 19:36:51,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:36:51,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 19:36:51,620 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-12-02 19:36:51,620 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-12-02 19:36:51,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 19:36:51,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:36:51,621 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-02 19:36:51,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:36:51,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:36:51,623 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 19:36:51,761 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:36:51,764 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:36:51,957 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:36:52,113 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:36:52,113 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 19:36:52,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:36:52 BoogieIcfgContainer [2023-12-02 19:36:52,114 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:36:52,117 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:36:52,117 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:36:52,121 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:36:52,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:36:50" (1/3) ... [2023-12-02 19:36:52,122 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23838820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:36:52, skipping insertion in model container [2023-12-02 19:36:52,122 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:51" (2/3) ... [2023-12-02 19:36:52,122 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23838820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:36:52, skipping insertion in model container [2023-12-02 19:36:52,123 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:36:52" (3/3) ... [2023-12-02 19:36:52,124 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_33-traces-v-matters_true.i [2023-12-02 19:36:52,134 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-12-02 19:36:52,143 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:36:52,144 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 19:36:52,144 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 19:36:52,176 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-02 19:36:52,207 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 30 transitions, 64 flow [2023-12-02 19:36:52,242 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 170 states, 169 states have (on average 1.8461538461538463) internal successors, (312), 169 states have internal predecessors, (312), 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 19:36:52,263 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:36:52,271 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;@61622632, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:36:52,271 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 19:36:52,275 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 169 states have (on average 1.8461538461538463) internal successors, (312), 169 states have internal predecessors, (312), 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 19:36:52,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 19:36:52,285 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:36:52,286 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:36:52,287 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-02 19:36:52,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:36:52,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1652717883, now seen corresponding path program 1 times [2023-12-02 19:36:52,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:36:52,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606676171] [2023-12-02 19:36:52,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:36:52,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:36:52,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:36:52,744 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 19:36:52,745 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:36:52,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606676171] [2023-12-02 19:36:52,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606676171] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:36:52,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:36:52,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:36:52,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682573172] [2023-12-02 19:36:52,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:36:52,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:36:52,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:36:52,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:36:52,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:36:52,791 INFO L87 Difference]: Start difference. First operand has 170 states, 169 states have (on average 1.8461538461538463) internal successors, (312), 169 states have internal predecessors, (312), 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) Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 19:36:52,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:36:52,942 INFO L93 Difference]: Finished difference Result 214 states and 376 transitions. [2023-12-02 19:36:52,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 19:36:52,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) Word has length 13 [2023-12-02 19:36:52,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:36:52,955 INFO L225 Difference]: With dead ends: 214 [2023-12-02 19:36:52,956 INFO L226 Difference]: Without dead ends: 110 [2023-12-02 19:36:52,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 19:36:52,961 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 26 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:36:52,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 47 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:36:52,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-12-02 19:36:53,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2023-12-02 19:36:53,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 1.761467889908257) internal successors, (192), 109 states have internal predecessors, (192), 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 19:36:53,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 192 transitions. [2023-12-02 19:36:53,009 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 192 transitions. Word has length 13 [2023-12-02 19:36:53,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:36:53,010 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 192 transitions. [2023-12-02 19:36:53,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 19:36:53,011 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 192 transitions. [2023-12-02 19:36:53,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-02 19:36:53,012 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:36:53,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:36:53,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 19:36:53,013 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-02 19:36:53,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:36:53,014 INFO L85 PathProgramCache]: Analyzing trace with hash -812209372, now seen corresponding path program 1 times [2023-12-02 19:36:53,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:36:53,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022935138] [2023-12-02 19:36:53,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:36:53,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:36:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:36:53,159 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 19:36:53,159 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:36:53,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022935138] [2023-12-02 19:36:53,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022935138] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:36:53,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:36:53,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:36:53,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275242371] [2023-12-02 19:36:53,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:36:53,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:36:53,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:36:53,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:36:53,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:36:53,165 INFO L87 Difference]: Start difference. First operand 110 states and 192 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 19:36:53,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:36:53,238 INFO L93 Difference]: Finished difference Result 142 states and 241 transitions. [2023-12-02 19:36:53,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:36:53,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) Word has length 18 [2023-12-02 19:36:53,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:36:53,241 INFO L225 Difference]: With dead ends: 142 [2023-12-02 19:36:53,242 INFO L226 Difference]: Without dead ends: 138 [2023-12-02 19:36:53,242 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 19:36:53,244 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 14 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:36:53,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 24 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:36:53,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-12-02 19:36:53,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 114. [2023-12-02 19:36:53,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 113 states have (on average 1.7345132743362832) internal successors, (196), 113 states have internal predecessors, (196), 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 19:36:53,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 196 transitions. [2023-12-02 19:36:53,261 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 196 transitions. Word has length 18 [2023-12-02 19:36:53,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:36:53,262 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 196 transitions. [2023-12-02 19:36:53,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 19:36:53,262 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 196 transitions. [2023-12-02 19:36:53,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-02 19:36:53,264 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:36:53,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:36:53,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 19:36:53,265 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-02 19:36:53,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:36:53,266 INFO L85 PathProgramCache]: Analyzing trace with hash 2092828438, now seen corresponding path program 2 times [2023-12-02 19:36:53,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:36:53,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501836890] [2023-12-02 19:36:53,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:36:53,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:36:53,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:36:53,452 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 19:36:53,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:36:53,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501836890] [2023-12-02 19:36:53,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501836890] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:36:53,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:36:53,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:36:53,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599624724] [2023-12-02 19:36:53,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:36:53,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:36:53,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:36:53,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:36:53,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:36:53,456 INFO L87 Difference]: Start difference. First operand 114 states and 196 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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 19:36:53,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:36:53,541 INFO L93 Difference]: Finished difference Result 72 states and 113 transitions. [2023-12-02 19:36:53,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:36:53,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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) Word has length 18 [2023-12-02 19:36:53,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:36:53,543 INFO L225 Difference]: With dead ends: 72 [2023-12-02 19:36:53,544 INFO L226 Difference]: Without dead ends: 66 [2023-12-02 19:36:53,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:36:53,546 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 28 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:36:53,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 23 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:36:53,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-12-02 19:36:53,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-12-02 19:36:53,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.6) internal successors, (104), 65 states have internal predecessors, (104), 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 19:36:53,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 104 transitions. [2023-12-02 19:36:53,568 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 104 transitions. Word has length 18 [2023-12-02 19:36:53,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:36:53,568 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 104 transitions. [2023-12-02 19:36:53,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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 19:36:53,569 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 104 transitions. [2023-12-02 19:36:53,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 19:36:53,570 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:36:53,570 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] [2023-12-02 19:36:53,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 19:36:53,571 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-02 19:36:53,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:36:53,572 INFO L85 PathProgramCache]: Analyzing trace with hash -874917395, now seen corresponding path program 1 times [2023-12-02 19:36:53,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:36:53,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247975093] [2023-12-02 19:36:53,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:36:53,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:36:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:36:53,855 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 19:36:53,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:36:53,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247975093] [2023-12-02 19:36:53,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247975093] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:36:53,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:36:53,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:36:53,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048227037] [2023-12-02 19:36:53,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:36:53,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 19:36:53,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:36:53,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 19:36:53,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:36:53,859 INFO L87 Difference]: Start difference. First operand 66 states and 104 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 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 19:36:53,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:36:53,887 INFO L93 Difference]: Finished difference Result 26 states and 36 transitions. [2023-12-02 19:36:53,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:36:53,888 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 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) Word has length 21 [2023-12-02 19:36:53,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:36:53,889 INFO L225 Difference]: With dead ends: 26 [2023-12-02 19:36:53,889 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 19:36:53,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:36:53,891 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 19:36:53,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 9 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 19:36:53,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 19:36:53,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 19:36:53,893 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 19:36:53,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 19:36:53,893 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2023-12-02 19:36:53,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:36:53,894 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 19:36:53,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 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 19:36:53,894 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 19:36:53,894 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 19:36:53,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-02 19:36:53,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-12-02 19:36:53,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 19:36:53,902 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-12-02 19:36:53,905 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-02 19:36:53,905 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 19:36:53,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:36:53 BasicIcfg [2023-12-02 19:36:53,910 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 19:36:53,910 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 19:36:53,910 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 19:36:53,911 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 19:36:53,911 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:36:52" (3/4) ... [2023-12-02 19:36:53,914 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 19:36:53,918 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-12-02 19:36:53,923 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2023-12-02 19:36:53,924 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-12-02 19:36:53,924 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 19:36:53,924 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 19:36:54,020 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc45a05-369f-49e6-9158-f141b238958f/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 19:36:54,021 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc45a05-369f-49e6-9158-f141b238958f/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 19:36:54,021 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 19:36:54,022 INFO L158 Benchmark]: Toolchain (without parser) took 3135.04ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 132.1MB in the beginning and 124.9MB in the end (delta: 7.2MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2023-12-02 19:36:54,023 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 121.6MB. Free memory was 90.0MB in the beginning and 89.9MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 19:36:54,023 INFO L158 Benchmark]: CACSL2BoogieTranslator took 568.44ms. Allocated memory is still 167.8MB. Free memory was 131.6MB in the beginning and 125.8MB in the end (delta: 5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-02 19:36:54,024 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.76ms. Allocated memory is still 167.8MB. Free memory was 125.8MB in the beginning and 123.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 19:36:54,024 INFO L158 Benchmark]: Boogie Preprocessor took 31.25ms. Allocated memory is still 167.8MB. Free memory was 123.7MB in the beginning and 122.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 19:36:54,025 INFO L158 Benchmark]: RCFGBuilder took 571.83ms. Allocated memory is still 167.8MB. Free memory was 122.2MB in the beginning and 93.4MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-12-02 19:36:54,025 INFO L158 Benchmark]: TraceAbstraction took 1792.80ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 92.8MB in the beginning and 129.1MB in the end (delta: -36.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 19:36:54,026 INFO L158 Benchmark]: Witness Printer took 111.01ms. Allocated memory is still 201.3MB. Free memory was 129.1MB in the beginning and 124.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 19:36:54,028 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 121.6MB. Free memory was 90.0MB in the beginning and 89.9MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 568.44ms. Allocated memory is still 167.8MB. Free memory was 131.6MB in the beginning and 125.8MB in the end (delta: 5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.76ms. Allocated memory is still 167.8MB. Free memory was 125.8MB in the beginning and 123.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.25ms. Allocated memory is still 167.8MB. Free memory was 123.7MB in the beginning and 122.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 571.83ms. Allocated memory is still 167.8MB. Free memory was 122.2MB in the beginning and 93.4MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1792.80ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 92.8MB in the beginning and 129.1MB in the end (delta: -36.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 111.01ms. Allocated memory is still 201.3MB. Free memory was 129.1MB in the beginning and 124.9MB in the end (delta: 4.2MB). 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 45 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 71 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 103 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 50 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 187 IncrementalHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 53 mSDtfsCounter, 187 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 24 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 281 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-02 19:36:54,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc45a05-369f-49e6-9158-f141b238958f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE