./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_46-refine-protected1_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_e0318a9c-8396-49ba-80df-33f8cd31119f/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0318a9c-8396-49ba-80df-33f8cd31119f/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0318a9c-8396-49ba-80df-33f8cd31119f/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0318a9c-8396-49ba-80df-33f8cd31119f/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_46-refine-protected1_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0318a9c-8396-49ba-80df-33f8cd31119f/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0318a9c-8396-49ba-80df-33f8cd31119f/bin/utaipan-verify-NcY6lQBIFX --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 3d12c74598447410478e04695104608e78da2e67734c0b49554aee2f95de0fed --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:58:24,157 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:58:24,265 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0318a9c-8396-49ba-80df-33f8cd31119f/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:58:24,272 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:58:24,273 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:58:24,298 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:58:24,300 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:58:24,301 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:58:24,302 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:58:24,307 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:58:24,307 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:58:24,308 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:58:24,309 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:58:24,311 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:58:24,311 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:58:24,311 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:58:24,312 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:58:24,312 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:58:24,313 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:58:24,313 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:58:24,315 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:58:24,315 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:58:24,316 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:58:24,317 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:58:24,317 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:58:24,318 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:58:24,318 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:58:24,319 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:58:24,319 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:58:24,319 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:58:24,321 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:58:24,321 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:58:24,321 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:58:24,321 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:58:24,322 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:58:24,322 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:58:24,322 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:58:24,322 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:58:24,323 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:58:24,323 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:58:24,323 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:58:24,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:58:24,324 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:58:24,325 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:58:24,325 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:58:24,325 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_e0318a9c-8396-49ba-80df-33f8cd31119f/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0318a9c-8396-49ba-80df-33f8cd31119f/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d12c74598447410478e04695104608e78da2e67734c0b49554aee2f95de0fed [2023-11-12 00:58:24,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:58:24,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:58:24,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:58:24,647 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:58:24,648 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:58:24,649 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0318a9c-8396-49ba-80df-33f8cd31119f/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/goblint-regression/13-privatized_46-refine-protected1_true.i [2023-11-12 00:58:27,784 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:58:28,132 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:58:28,132 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0318a9c-8396-49ba-80df-33f8cd31119f/sv-benchmarks/c/goblint-regression/13-privatized_46-refine-protected1_true.i [2023-11-12 00:58:28,150 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0318a9c-8396-49ba-80df-33f8cd31119f/bin/utaipan-verify-NcY6lQBIFX/data/4a6e60882/5bca9293f29341f5b351dec7696568b7/FLAG6fbe16dab [2023-11-12 00:58:28,165 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0318a9c-8396-49ba-80df-33f8cd31119f/bin/utaipan-verify-NcY6lQBIFX/data/4a6e60882/5bca9293f29341f5b351dec7696568b7 [2023-11-12 00:58:28,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:58:28,170 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:58:28,171 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:58:28,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:58:28,179 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:58:28,182 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:58:28" (1/1) ... [2023-11-12 00:58:28,183 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b160bb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:28, skipping insertion in model container [2023-11-12 00:58:28,184 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:58:28" (1/1) ... [2023-11-12 00:58:28,232 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:58:28,447 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_e0318a9c-8396-49ba-80df-33f8cd31119f/sv-benchmarks/c/goblint-regression/13-privatized_46-refine-protected1_true.i[1094,1107] [2023-11-12 00:58:28,593 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:58:28,606 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:58:28,619 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_e0318a9c-8396-49ba-80df-33f8cd31119f/sv-benchmarks/c/goblint-regression/13-privatized_46-refine-protected1_true.i[1094,1107] [2023-11-12 00:58:28,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:58:28,688 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:58:28,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:28 WrapperNode [2023-11-12 00:58:28,689 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:58:28,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:58:28,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:58:28,691 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:58:28,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:28" (1/1) ... [2023-11-12 00:58:28,713 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:28" (1/1) ... [2023-11-12 00:58:28,734 INFO L138 Inliner]: procedures = 162, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 49 [2023-11-12 00:58:28,735 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:58:28,736 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:58:28,736 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:58:28,736 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:58:28,745 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:28" (1/1) ... [2023-11-12 00:58:28,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:28" (1/1) ... [2023-11-12 00:58:28,749 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:28" (1/1) ... [2023-11-12 00:58:28,749 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:28" (1/1) ... [2023-11-12 00:58:28,755 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:28" (1/1) ... [2023-11-12 00:58:28,757 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:28" (1/1) ... [2023-11-12 00:58:28,758 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:28" (1/1) ... [2023-11-12 00:58:28,760 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:28" (1/1) ... [2023-11-12 00:58:28,762 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:58:28,763 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:58:28,764 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:58:28,764 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:58:28,765 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:28" (1/1) ... [2023-11-12 00:58:28,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:58:28,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0318a9c-8396-49ba-80df-33f8cd31119f/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:58:28,797 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0318a9c-8396-49ba-80df-33f8cd31119f/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:58:28,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0318a9c-8396-49ba-80df-33f8cd31119f/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:58:28,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:58:28,846 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 00:58:28,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:58:28,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:58:28,846 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-12 00:58:28,847 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-12 00:58:28,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:58:28,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:58:28,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:58:28,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:58:28,851 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 00:58:29,031 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:58:29,033 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:58:29,162 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:58:29,169 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:58:29,170 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:58:29,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:58:29 BoogieIcfgContainer [2023-11-12 00:58:29,172 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:58:29,175 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:58:29,175 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:58:29,186 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:58:29,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:58:28" (1/3) ... [2023-11-12 00:58:29,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2651e756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:58:29, skipping insertion in model container [2023-11-12 00:58:29,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:28" (2/3) ... [2023-11-12 00:58:29,188 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2651e756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:58:29, skipping insertion in model container [2023-11-12 00:58:29,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:58:29" (3/3) ... [2023-11-12 00:58:29,190 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_46-refine-protected1_true.i [2023-11-12 00:58:29,200 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 00:58:29,213 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:58:29,213 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-12 00:58:29,213 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:58:29,254 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 00:58:29,308 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:58:29,321 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 62 transitions, 128 flow [2023-11-12 00:58:29,324 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 62 transitions, 128 flow [2023-11-12 00:58:29,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 62 transitions, 128 flow [2023-11-12 00:58:29,367 INFO L124 PetriNetUnfolderBase]: 3/61 cut-off events. [2023-11-12 00:58:29,367 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 00:58:29,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 61 events. 3/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 49 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2023-11-12 00:58:29,372 INFO L119 LiptonReduction]: Number of co-enabled transitions 222 [2023-11-12 00:58:32,075 INFO L134 LiptonReduction]: Checked pairs total: 158 [2023-11-12 00:58:32,075 INFO L136 LiptonReduction]: Total number of compositions: 71 [2023-11-12 00:58:32,085 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 11 places, 7 transitions, 18 flow [2023-11-12 00:58:32,096 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:58:32,115 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:58:32,122 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;@39bdb3c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:58:32,122 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-12 00:58:32,124 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:58:32,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-12 00:58:32,129 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:58:32,129 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-12 00:58:32,130 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-12 00:58:32,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:58:32,135 INFO L85 PathProgramCache]: Analyzing trace with hash 235252, now seen corresponding path program 1 times [2023-11-12 00:58:32,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:58:32,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666334207] [2023-11-12 00:58:32,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:58:32,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:58:32,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:58:32,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:58:32,343 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:58:32,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666334207] [2023-11-12 00:58:32,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666334207] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:58:32,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:58:32,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 00:58:32,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166611600] [2023-11-12 00:58:32,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:58:32,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:58:32,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:58:32,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:58:32,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:58:32,383 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 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 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:58:32,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:58:32,411 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions. [2023-11-12 00:58:32,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:58:32,413 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2023-11-12 00:58:32,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:58:32,418 INFO L225 Difference]: With dead ends: 4 [2023-11-12 00:58:32,419 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:58:32,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:58:32,425 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:58:32,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:58:32,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:58:32,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:58:32,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:58:32,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:58:32,456 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2023-11-12 00:58:32,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:58:32,457 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:58:32,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:58:32,457 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:58:32,458 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:58:32,460 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-12 00:58:32,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2023-11-12 00:58:32,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-12 00:58:32,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:58:32,463 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:58:32,469 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 00:58:32,469 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:58:32,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:58:32 BasicIcfg [2023-11-12 00:58:32,474 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:58:32,474 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:58:32,475 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:58:32,475 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:58:32,475 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:58:29" (3/4) ... [2023-11-12 00:58:32,477 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:58:32,481 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-12 00:58:32,487 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-12 00:58:32,488 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 00:58:32,488 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 00:58:32,488 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:58:32,580 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0318a9c-8396-49ba-80df-33f8cd31119f/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:58:32,581 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0318a9c-8396-49ba-80df-33f8cd31119f/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:58:32,581 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:58:32,582 INFO L158 Benchmark]: Toolchain (without parser) took 4411.85ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 118.5MB in the beginning and 95.0MB in the end (delta: 23.5MB). Peak memory consumption was 65.4MB. Max. memory is 16.1GB. [2023-11-12 00:58:32,582 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:58:32,583 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.52ms. Allocated memory is still 151.0MB. Free memory was 118.1MB in the beginning and 99.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 00:58:32,583 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.53ms. Allocated memory is still 151.0MB. Free memory was 99.2MB in the beginning and 97.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:58:32,583 INFO L158 Benchmark]: Boogie Preprocessor took 26.95ms. Allocated memory is still 151.0MB. Free memory was 97.3MB in the beginning and 96.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:58:32,584 INFO L158 Benchmark]: RCFGBuilder took 408.72ms. Allocated memory is still 151.0MB. Free memory was 96.0MB in the beginning and 84.3MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 00:58:32,584 INFO L158 Benchmark]: TraceAbstraction took 3299.01ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 83.5MB in the beginning and 100.2MB in the end (delta: -16.8MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2023-11-12 00:58:32,585 INFO L158 Benchmark]: Witness Printer took 106.63ms. Allocated memory is still 192.9MB. Free memory was 100.2MB in the beginning and 95.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 00:58:32,588 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 125.8MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 518.52ms. Allocated memory is still 151.0MB. Free memory was 118.1MB in the beginning and 99.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.53ms. Allocated memory is still 151.0MB. Free memory was 99.2MB in the beginning and 97.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.95ms. Allocated memory is still 151.0MB. Free memory was 97.3MB in the beginning and 96.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 408.72ms. Allocated memory is still 151.0MB. Free memory was 96.0MB in the beginning and 84.3MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3299.01ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 83.5MB in the beginning and 100.2MB in the end (delta: -16.8MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * Witness Printer took 106.63ms. Allocated memory is still 192.9MB. Free memory was 100.2MB in the beginning and 95.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 63 PlacesBefore, 11 PlacesAfterwards, 62 TransitionsBefore, 7 TransitionsAfterwards, 222 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 3 ChoiceCompositions, 71 TotalNumberOfCompositions, 158 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 158, independent: 158, independent conditional: 0, independent unconditional: 158, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 140, independent: 140, independent conditional: 0, independent unconditional: 140, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 140, independent: 140, independent conditional: 0, independent unconditional: 140, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 158, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 140, unknown conditional: 0, unknown unconditional: 140] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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 - 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, 65 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 2 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-12 00:58:32,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0318a9c-8396-49ba-80df-33f8cd31119f/bin/utaipan-verify-NcY6lQBIFX/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