./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f9130b-3c8e-4e9d-b3c1-7e6dcf8cfedc/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f9130b-3c8e-4e9d-b3c1-7e6dcf8cfedc/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f9130b-3c8e-4e9d-b3c1-7e6dcf8cfedc/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f9130b-3c8e-4e9d-b3c1-7e6dcf8cfedc/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f9130b-3c8e-4e9d-b3c1-7e6dcf8cfedc/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f9130b-3c8e-4e9d-b3c1-7e6dcf8cfedc/bin/utaipan-verify-t7M7D8N6sZ --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 4017723c7e4b1f7c431c7e7a6ea6ca9df8ac56fc590cd03021a11577cb455eff --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:14:11,104 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:14:11,176 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f9130b-3c8e-4e9d-b3c1-7e6dcf8cfedc/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:14:11,182 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:14:11,183 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:14:11,207 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:14:11,207 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:14:11,208 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:14:11,209 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:14:11,209 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:14:11,210 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:14:11,210 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:14:11,211 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:14:11,211 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:14:11,212 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:14:11,213 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:14:11,213 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:14:11,214 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:14:11,214 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:14:11,215 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:14:11,215 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:14:11,220 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:14:11,221 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:14:11,221 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:14:11,222 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:14:11,222 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:14:11,227 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:14:11,227 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:14:11,228 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:14:11,228 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:14:11,229 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:14:11,230 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:14:11,230 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:14:11,231 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:14:11,231 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:14:11,231 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:14:11,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:14:11,232 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:14:11,232 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:14:11,232 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:14:11,232 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:14:11,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:14:11,234 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:14:11,234 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:14:11,234 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:14:11,235 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_55f9130b-3c8e-4e9d-b3c1-7e6dcf8cfedc/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f9130b-3c8e-4e9d-b3c1-7e6dcf8cfedc/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4017723c7e4b1f7c431c7e7a6ea6ca9df8ac56fc590cd03021a11577cb455eff [2023-11-19 05:14:11,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:14:11,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:14:11,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:14:11,526 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:14:11,527 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:14:11,528 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f9130b-3c8e-4e9d-b3c1-7e6dcf8cfedc/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i [2023-11-19 05:14:14,884 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:14:15,319 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:14:15,320 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f9130b-3c8e-4e9d-b3c1-7e6dcf8cfedc/sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i [2023-11-19 05:14:15,351 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f9130b-3c8e-4e9d-b3c1-7e6dcf8cfedc/bin/utaipan-verify-t7M7D8N6sZ/data/9478c4264/5239b84b81ed443e9bffdd1b9f14d2b6/FLAG7b07c6b45 [2023-11-19 05:14:15,366 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f9130b-3c8e-4e9d-b3c1-7e6dcf8cfedc/bin/utaipan-verify-t7M7D8N6sZ/data/9478c4264/5239b84b81ed443e9bffdd1b9f14d2b6 [2023-11-19 05:14:15,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:14:15,370 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:14:15,372 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:14:15,372 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:14:15,378 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:14:15,379 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:14:15" (1/1) ... [2023-11-19 05:14:15,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a803d4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:15, skipping insertion in model container [2023-11-19 05:14:15,380 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:14:15" (1/1) ... [2023-11-19 05:14:15,440 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:14:15,625 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_55f9130b-3c8e-4e9d-b3c1-7e6dcf8cfedc/sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i[1086,1099] [2023-11-19 05:14:15,799 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:14:15,818 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:14:15,836 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_55f9130b-3c8e-4e9d-b3c1-7e6dcf8cfedc/sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i[1086,1099] [2023-11-19 05:14:15,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:14:15,971 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:14:15,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:15 WrapperNode [2023-11-19 05:14:15,972 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:14:15,974 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:14:15,974 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:14:15,974 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:14:15,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:15" (1/1) ... [2023-11-19 05:14:16,021 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:15" (1/1) ... [2023-11-19 05:14:16,063 INFO L138 Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 75 [2023-11-19 05:14:16,064 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:14:16,065 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:14:16,065 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:14:16,065 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:14:16,077 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:15" (1/1) ... [2023-11-19 05:14:16,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:15" (1/1) ... [2023-11-19 05:14:16,091 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:15" (1/1) ... [2023-11-19 05:14:16,092 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:15" (1/1) ... [2023-11-19 05:14:16,098 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:15" (1/1) ... [2023-11-19 05:14:16,100 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:15" (1/1) ... [2023-11-19 05:14:16,102 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:15" (1/1) ... [2023-11-19 05:14:16,115 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:15" (1/1) ... [2023-11-19 05:14:16,132 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:14:16,133 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:14:16,134 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:14:16,134 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:14:16,135 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:15" (1/1) ... [2023-11-19 05:14:16,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:14:16,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f9130b-3c8e-4e9d-b3c1-7e6dcf8cfedc/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:14:16,168 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f9130b-3c8e-4e9d-b3c1-7e6dcf8cfedc/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:14:16,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f9130b-3c8e-4e9d-b3c1-7e6dcf8cfedc/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:14:16,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:14:16,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:14:16,208 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 05:14:16,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:14:16,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:14:16,209 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-19 05:14:16,209 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-19 05:14:16,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:14:16,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:14:16,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:14:16,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:14:16,212 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 05:14:16,358 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:14:16,360 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:14:16,563 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:14:16,575 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:14:16,575 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:14:16,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:14:16 BoogieIcfgContainer [2023-11-19 05:14:16,580 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:14:16,583 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:14:16,584 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:14:16,588 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:14:16,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:14:15" (1/3) ... [2023-11-19 05:14:16,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f05b7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:14:16, skipping insertion in model container [2023-11-19 05:14:16,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:15" (2/3) ... [2023-11-19 05:14:16,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f05b7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:14:16, skipping insertion in model container [2023-11-19 05:14:16,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:14:16" (3/3) ... [2023-11-19 05:14:16,592 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_25-struct_nr_true.i [2023-11-19 05:14:16,603 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 05:14:16,614 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:14:16,614 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-19 05:14:16,614 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 05:14:16,703 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 05:14:16,756 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 05:14:16,772 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 92 transitions, 191 flow [2023-11-19 05:14:16,776 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 92 transitions, 191 flow [2023-11-19 05:14:16,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 92 transitions, 191 flow [2023-11-19 05:14:16,854 INFO L124 PetriNetUnfolderBase]: 4/91 cut-off events. [2023-11-19 05:14:16,854 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 05:14:16,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 91 events. 4/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 83 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-11-19 05:14:16,864 INFO L119 LiptonReduction]: Number of co-enabled transitions 1320 [2023-11-19 05:14:19,784 INFO L134 LiptonReduction]: Checked pairs total: 2988 [2023-11-19 05:14:19,785 INFO L136 LiptonReduction]: Total number of compositions: 100 [2023-11-19 05:14:19,793 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 25 transitions, 57 flow [2023-11-19 05:14:19,812 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 72 states, 66 states have (on average 2.1666666666666665) internal successors, (143), 71 states have internal predecessors, (143), 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) [2023-11-19 05:14:19,832 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:14:19,839 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;@552c5086, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:14:19,840 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-19 05:14:19,842 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 66 states have (on average 2.1666666666666665) internal successors, (143), 71 states have internal predecessors, (143), 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) [2023-11-19 05:14:19,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2023-11-19 05:14:19,847 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:19,848 INFO L195 NwaCegarLoop]: trace histogram [1] [2023-11-19 05:14:19,848 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-19 05:14:19,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:19,854 INFO L85 PathProgramCache]: Analyzing trace with hash 364, now seen corresponding path program 1 times [2023-11-19 05:14:19,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:19,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343073198] [2023-11-19 05:14:19,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:19,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:19,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:14:19,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:14:19,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343073198] [2023-11-19 05:14:19,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343073198] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:19,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:14:19,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 05:14:19,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100124439] [2023-11-19 05:14:19,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:19,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:14:19,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:14:20,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:14:20,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:14:20,005 INFO L87 Difference]: Start difference. First operand has 72 states, 66 states have (on average 2.1666666666666665) internal successors, (143), 71 states have internal predecessors, (143), 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 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2023-11-19 05:14:20,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:20,046 INFO L93 Difference]: Finished difference Result 71 states and 122 transitions. [2023-11-19 05:14:20,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:14:20,049 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2023-11-19 05:14:20,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:20,058 INFO L225 Difference]: With dead ends: 71 [2023-11-19 05:14:20,058 INFO L226 Difference]: Without dead ends: 71 [2023-11-19 05:14:20,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:14:20,063 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:20,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:14:20,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-19 05:14:20,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2023-11-19 05:14:20,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 66 states have (on average 1.8484848484848484) internal successors, (122), 70 states have internal predecessors, (122), 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) [2023-11-19 05:14:20,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 122 transitions. [2023-11-19 05:14:20,104 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 122 transitions. Word has length 1 [2023-11-19 05:14:20,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:20,104 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 122 transitions. [2023-11-19 05:14:20,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2023-11-19 05:14:20,105 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 122 transitions. [2023-11-19 05:14:20,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 05:14:20,105 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:20,105 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 05:14:20,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:14:20,106 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-19 05:14:20,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:20,107 INFO L85 PathProgramCache]: Analyzing trace with hash 11109074, now seen corresponding path program 1 times [2023-11-19 05:14:20,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:20,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414795001] [2023-11-19 05:14:20,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:20,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:20,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:20,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:14:20,397 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:14:20,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414795001] [2023-11-19 05:14:20,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414795001] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:20,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:14:20,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 05:14:20,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491241559] [2023-11-19 05:14:20,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:20,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:14:20,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:14:20,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:14:20,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:14:20,401 INFO L87 Difference]: Start difference. First operand 71 states and 122 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-19 05:14:20,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:20,451 INFO L93 Difference]: Finished difference Result 68 states and 116 transitions. [2023-11-19 05:14:20,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:14:20,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2023-11-19 05:14:20,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:20,454 INFO L225 Difference]: With dead ends: 68 [2023-11-19 05:14:20,454 INFO L226 Difference]: Without dead ends: 68 [2023-11-19 05:14:20,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:14:20,456 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:20,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:14:20,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-19 05:14:20,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-11-19 05:14:20,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 63 states have (on average 1.8412698412698412) internal successors, (116), 67 states have internal predecessors, (116), 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) [2023-11-19 05:14:20,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 116 transitions. [2023-11-19 05:14:20,469 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 116 transitions. Word has length 4 [2023-11-19 05:14:20,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:20,469 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 116 transitions. [2023-11-19 05:14:20,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-19 05:14:20,470 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 116 transitions. [2023-11-19 05:14:20,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 05:14:20,470 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:20,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 05:14:20,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:14:20,471 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-19 05:14:20,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:20,472 INFO L85 PathProgramCache]: Analyzing trace with hash 2085861719, now seen corresponding path program 1 times [2023-11-19 05:14:20,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:20,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141220287] [2023-11-19 05:14:20,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:20,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:20,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:14:20,607 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:14:20,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141220287] [2023-11-19 05:14:20,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141220287] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:20,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:14:20,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:14:20,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084468098] [2023-11-19 05:14:20,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:20,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:14:20,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:14:20,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:14:20,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:14:20,616 INFO L87 Difference]: Start difference. First operand 68 states and 116 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-19 05:14:20,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:20,673 INFO L93 Difference]: Finished difference Result 73 states and 119 transitions. [2023-11-19 05:14:20,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:14:20,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2023-11-19 05:14:20,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:20,677 INFO L225 Difference]: With dead ends: 73 [2023-11-19 05:14:20,677 INFO L226 Difference]: Without dead ends: 69 [2023-11-19 05:14:20,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:14:20,682 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:20,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:14:20,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-11-19 05:14:20,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2023-11-19 05:14:20,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 62 states have (on average 1.7580645161290323) internal successors, (109), 66 states have internal predecessors, (109), 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) [2023-11-19 05:14:20,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 109 transitions. [2023-11-19 05:14:20,693 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 109 transitions. Word has length 6 [2023-11-19 05:14:20,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:20,694 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 109 transitions. [2023-11-19 05:14:20,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-19 05:14:20,694 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 109 transitions. [2023-11-19 05:14:20,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 05:14:20,695 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:20,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 05:14:20,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:14:20,695 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-19 05:14:20,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:20,696 INFO L85 PathProgramCache]: Analyzing trace with hash 2085446219, now seen corresponding path program 1 times [2023-11-19 05:14:20,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:20,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313185138] [2023-11-19 05:14:20,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:20,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:20,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:14:20,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:14:20,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313185138] [2023-11-19 05:14:20,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313185138] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:20,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:14:20,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:14:20,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417145586] [2023-11-19 05:14:20,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:20,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:14:20,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:14:20,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:14:20,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:14:20,852 INFO L87 Difference]: Start difference. First operand 67 states and 109 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2023-11-19 05:14:20,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:20,972 INFO L93 Difference]: Finished difference Result 72 states and 113 transitions. [2023-11-19 05:14:20,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:14:20,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2023-11-19 05:14:20,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:20,974 INFO L225 Difference]: With dead ends: 72 [2023-11-19 05:14:20,974 INFO L226 Difference]: Without dead ends: 68 [2023-11-19 05:14:20,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:14:20,981 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:20,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 0 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:14:20,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-19 05:14:20,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-11-19 05:14:20,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 64 states have (on average 1.6875) internal successors, (108), 67 states have internal predecessors, (108), 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) [2023-11-19 05:14:20,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 108 transitions. [2023-11-19 05:14:21,002 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 108 transitions. Word has length 6 [2023-11-19 05:14:21,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:21,003 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 108 transitions. [2023-11-19 05:14:21,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2023-11-19 05:14:21,004 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 108 transitions. [2023-11-19 05:14:21,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 05:14:21,005 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:21,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:14:21,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 05:14:21,008 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-19 05:14:21,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:21,008 INFO L85 PathProgramCache]: Analyzing trace with hash 237211265, now seen corresponding path program 1 times [2023-11-19 05:14:21,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:21,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878252724] [2023-11-19 05:14:21,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:21,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:21,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:14:21,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:14:21,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878252724] [2023-11-19 05:14:21,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878252724] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:21,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:14:21,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:14:21,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186121187] [2023-11-19 05:14:21,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:21,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:14:21,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:14:21,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:14:21,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:14:21,094 INFO L87 Difference]: Start difference. First operand 68 states and 108 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-19 05:14:21,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:21,121 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2023-11-19 05:14:21,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:14:21,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2023-11-19 05:14:21,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:21,122 INFO L225 Difference]: With dead ends: 22 [2023-11-19 05:14:21,122 INFO L226 Difference]: Without dead ends: 22 [2023-11-19 05:14:21,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:14:21,123 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:21,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 0 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:14:21,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-11-19 05:14:21,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-11-19 05:14:21,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.05) internal successors, (21), 21 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) [2023-11-19 05:14:21,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2023-11-19 05:14:21,127 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 7 [2023-11-19 05:14:21,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:21,127 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2023-11-19 05:14:21,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-19 05:14:21,128 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2023-11-19 05:14:21,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 05:14:21,128 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:21,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:14:21,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 05:14:21,129 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-19 05:14:21,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:21,132 INFO L85 PathProgramCache]: Analyzing trace with hash -114341784, now seen corresponding path program 1 times [2023-11-19 05:14:21,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:21,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903913509] [2023-11-19 05:14:21,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:21,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:21,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:14:21,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:14:21,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903913509] [2023-11-19 05:14:21,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903913509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:21,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:14:21,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:14:21,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039343556] [2023-11-19 05:14:21,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:21,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:14:21,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:14:21,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:14:21,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:14:21,313 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2023-11-19 05:14:21,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:21,385 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2023-11-19 05:14:21,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:14:21,386 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 11 [2023-11-19 05:14:21,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:21,386 INFO L225 Difference]: With dead ends: 21 [2023-11-19 05:14:21,387 INFO L226 Difference]: Without dead ends: 13 [2023-11-19 05:14:21,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:14:21,388 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:21,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:14:21,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-11-19 05:14:21,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-11-19 05:14:21,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0) internal successors, (12), 12 states have internal predecessors, (12), 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) [2023-11-19 05:14:21,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2023-11-19 05:14:21,391 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 11 [2023-11-19 05:14:21,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:21,391 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2023-11-19 05:14:21,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2023-11-19 05:14:21,392 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2023-11-19 05:14:21,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 05:14:21,392 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:21,392 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:14:21,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 05:14:21,393 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-19 05:14:21,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:21,393 INFO L85 PathProgramCache]: Analyzing trace with hash -2103696026, now seen corresponding path program 1 times [2023-11-19 05:14:21,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:21,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440699697] [2023-11-19 05:14:21,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:21,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:21,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:14:21,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:14:21,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440699697] [2023-11-19 05:14:21,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440699697] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:21,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:14:21,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:14:21,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808108360] [2023-11-19 05:14:21,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:21,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:14:21,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:14:21,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:14:21,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:14:21,515 INFO L87 Difference]: Start difference. First operand 13 states and 12 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2023-11-19 05:14:21,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:21,567 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2023-11-19 05:14:21,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 05:14:21,567 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 12 [2023-11-19 05:14:21,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:21,568 INFO L225 Difference]: With dead ends: 12 [2023-11-19 05:14:21,568 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 05:14:21,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:14:21,570 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:21,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:14:21,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 05:14:21,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 05:14:21,572 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) [2023-11-19 05:14:21,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 05:14:21,572 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2023-11-19 05:14:21,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:21,573 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 05:14:21,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2023-11-19 05:14:21,573 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 05:14:21,573 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 05:14:21,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-11-19 05:14:21,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-11-19 05:14:21,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-11-19 05:14:21,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2023-11-19 05:14:21,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2023-11-19 05:14:21,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-11-19 05:14:21,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-11-19 05:14:21,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 05:14:21,581 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:14:21,586 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 05:14:21,587 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:14:21,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:14:21 BasicIcfg [2023-11-19 05:14:21,592 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:14:21,592 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:14:21,592 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:14:21,593 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:14:21,593 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:14:16" (3/4) ... [2023-11-19 05:14:21,595 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 05:14:21,599 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-19 05:14:21,605 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-19 05:14:21,605 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 05:14:21,606 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 05:14:21,606 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 05:14:21,701 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f9130b-3c8e-4e9d-b3c1-7e6dcf8cfedc/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 05:14:21,701 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f9130b-3c8e-4e9d-b3c1-7e6dcf8cfedc/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 05:14:21,702 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:14:21,702 INFO L158 Benchmark]: Toolchain (without parser) took 6332.26ms. Allocated memory was 146.8MB in the beginning and 178.3MB in the end (delta: 31.5MB). Free memory was 113.6MB in the beginning and 73.8MB in the end (delta: 39.7MB). Peak memory consumption was 71.5MB. Max. memory is 16.1GB. [2023-11-19 05:14:21,703 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:14:21,703 INFO L158 Benchmark]: CACSL2BoogieTranslator took 600.86ms. Allocated memory is still 146.8MB. Free memory was 113.3MB in the beginning and 94.3MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 05:14:21,703 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.32ms. Allocated memory is still 146.8MB. Free memory was 94.3MB in the beginning and 92.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:14:21,704 INFO L158 Benchmark]: Boogie Preprocessor took 68.07ms. Allocated memory is still 146.8MB. Free memory was 92.3MB in the beginning and 90.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:14:21,704 INFO L158 Benchmark]: RCFGBuilder took 446.54ms. Allocated memory is still 146.8MB. Free memory was 90.9MB in the beginning and 77.7MB in the end (delta: 13.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 05:14:21,705 INFO L158 Benchmark]: TraceAbstraction took 5008.24ms. Allocated memory was 146.8MB in the beginning and 178.3MB in the end (delta: 31.5MB). Free memory was 77.1MB in the beginning and 78.0MB in the end (delta: -945.7kB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. [2023-11-19 05:14:21,705 INFO L158 Benchmark]: Witness Printer took 109.49ms. Allocated memory is still 178.3MB. Free memory was 78.0MB in the beginning and 73.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:14:21,708 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 600.86ms. Allocated memory is still 146.8MB. Free memory was 113.3MB in the beginning and 94.3MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.32ms. Allocated memory is still 146.8MB. Free memory was 94.3MB in the beginning and 92.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 68.07ms. Allocated memory is still 146.8MB. Free memory was 92.3MB in the beginning and 90.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 446.54ms. Allocated memory is still 146.8MB. Free memory was 90.9MB in the beginning and 77.7MB in the end (delta: 13.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5008.24ms. Allocated memory was 146.8MB in the beginning and 178.3MB in the end (delta: 31.5MB). Free memory was 77.1MB in the beginning and 78.0MB in the end (delta: -945.7kB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. * Witness Printer took 109.49ms. Allocated memory is still 178.3MB. Free memory was 78.0MB in the beginning and 73.8MB 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: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 92 PlacesBefore, 26 PlacesAfterwards, 92 TransitionsBefore, 25 TransitionsAfterwards, 1320 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 100 TotalNumberOfCompositions, 2988 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1729, independent: 1573, independent conditional: 0, independent unconditional: 1573, dependent: 156, dependent conditional: 0, dependent unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1076, independent: 1030, independent conditional: 0, independent unconditional: 1030, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1076, independent: 963, independent conditional: 0, independent unconditional: 963, dependent: 113, dependent conditional: 0, dependent unconditional: 113, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 113, independent: 67, independent conditional: 0, independent unconditional: 67, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 191, independent: 64, independent conditional: 0, independent unconditional: 64, dependent: 127, dependent conditional: 0, dependent unconditional: 127, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1729, independent: 543, independent conditional: 0, independent unconditional: 543, dependent: 110, dependent conditional: 0, dependent unconditional: 110, unknown: 1076, unknown conditional: 0, unknown unconditional: 1076] , Statistics on independence cache: Total cache size (in pairs): 104, Positive cache size: 86, Positive conditional cache size: 0, Positive unconditional cache size: 86, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, 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 - 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, 119 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 327 IncrementalHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 0 mSDtfsCounter, 327 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=0, InterpolantAutomatonStates: 30, 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, 7 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 05:14:21,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f9130b-3c8e-4e9d-b3c1-7e6dcf8cfedc/bin/utaipan-verify-t7M7D8N6sZ/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