./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe003_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_38b5edf8-99d9-4f66-9b0e-e5b1152987af/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b5edf8-99d9-4f66-9b0e-e5b1152987af/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b5edf8-99d9-4f66-9b0e-e5b1152987af/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b5edf8-99d9-4f66-9b0e-e5b1152987af/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe003_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b5edf8-99d9-4f66-9b0e-e5b1152987af/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b5edf8-99d9-4f66-9b0e-e5b1152987af/bin/utaipan-verify-DbMuA5NWw2 --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 cc60b32bd5539dadbcbe1bdf86f21665a573ec180c72ba491085256c00923963 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:39:20,107 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:39:20,193 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b5edf8-99d9-4f66-9b0e-e5b1152987af/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:39:20,197 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:39:20,198 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:39:20,219 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:39:20,220 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:39:20,220 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:39:20,221 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:39:20,221 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:39:20,222 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:39:20,222 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:39:20,223 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:39:20,223 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:39:20,223 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:39:20,224 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:39:20,224 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:39:20,224 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:39:20,225 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:39:20,225 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:39:20,226 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:39:20,226 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:39:20,227 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:39:20,227 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:39:20,228 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:39:20,228 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:39:20,228 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:39:20,229 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:39:20,229 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:39:20,229 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:39:20,229 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:39:20,230 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:39:20,230 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:39:20,230 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:39:20,231 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:39:20,231 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:39:20,231 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:39:20,232 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:39:20,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:39:20,232 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:39:20,233 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:39:20,233 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:39:20,234 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:39:20,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:39:20,234 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:39:20,236 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:39:20,236 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:39:20,236 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_38b5edf8-99d9-4f66-9b0e-e5b1152987af/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b5edf8-99d9-4f66-9b0e-e5b1152987af/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc60b32bd5539dadbcbe1bdf86f21665a573ec180c72ba491085256c00923963 [2024-11-02 12:39:20,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:39:20,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:39:20,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:39:20,576 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:39:20,577 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:39:20,578 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b5edf8-99d9-4f66-9b0e-e5b1152987af/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/pthread-wmm/safe003_tso.i Unable to find full path for "g++" [2024-11-02 12:39:22,660 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:39:22,914 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:39:22,914 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b5edf8-99d9-4f66-9b0e-e5b1152987af/sv-benchmarks/c/pthread-wmm/safe003_tso.i [2024-11-02 12:39:22,943 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b5edf8-99d9-4f66-9b0e-e5b1152987af/bin/utaipan-verify-DbMuA5NWw2/data/fdb7e6ff2/6fae5ddd3dd24dd7a067640490bb2c17/FLAG096fdc16c [2024-11-02 12:39:23,245 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b5edf8-99d9-4f66-9b0e-e5b1152987af/bin/utaipan-verify-DbMuA5NWw2/data/fdb7e6ff2/6fae5ddd3dd24dd7a067640490bb2c17 [2024-11-02 12:39:23,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:39:23,250 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:39:23,252 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:39:23,252 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:39:23,263 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:39:23,264 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:39:23" (1/1) ... [2024-11-02 12:39:23,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26a2711f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:23, skipping insertion in model container [2024-11-02 12:39:23,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:39:23" (1/1) ... [2024-11-02 12:39:23,324 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:39:23,562 WARN L251 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_38b5edf8-99d9-4f66-9b0e-e5b1152987af/sv-benchmarks/c/pthread-wmm/safe003_tso.i[945,958] [2024-11-02 12:39:23,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:39:23,818 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:39:23,835 WARN L251 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_38b5edf8-99d9-4f66-9b0e-e5b1152987af/sv-benchmarks/c/pthread-wmm/safe003_tso.i[945,958] [2024-11-02 12:39:23,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:39:23,932 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:39:23,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:23 WrapperNode [2024-11-02 12:39:23,933 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:39:23,934 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:39:23,934 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:39:23,934 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:39:23,942 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:23" (1/1) ... [2024-11-02 12:39:23,958 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:23" (1/1) ... [2024-11-02 12:39:23,985 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2024-11-02 12:39:23,986 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:39:23,986 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:39:23,987 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:39:23,987 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:39:23,998 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:23" (1/1) ... [2024-11-02 12:39:23,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:23" (1/1) ... [2024-11-02 12:39:24,001 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:23" (1/1) ... [2024-11-02 12:39:24,002 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:23" (1/1) ... [2024-11-02 12:39:24,007 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:23" (1/1) ... [2024-11-02 12:39:24,009 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:23" (1/1) ... [2024-11-02 12:39:24,011 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:23" (1/1) ... [2024-11-02 12:39:24,012 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:23" (1/1) ... [2024-11-02 12:39:24,015 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:39:24,016 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:39:24,016 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:39:24,016 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:39:24,017 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:23" (1/1) ... [2024-11-02 12:39:24,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:39:24,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b5edf8-99d9-4f66-9b0e-e5b1152987af/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:39:24,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b5edf8-99d9-4f66-9b0e-e5b1152987af/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:39:24,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b5edf8-99d9-4f66-9b0e-e5b1152987af/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:39:24,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-02 12:39:24,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:39:24,090 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-02 12:39:24,090 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-02 12:39:24,090 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-02 12:39:24,090 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-02 12:39:24,090 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-02 12:39:24,091 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-02 12:39:24,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:39:24,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-02 12:39:24,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:39:24,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:39:24,094 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-02 12:39:24,236 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:39:24,238 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:39:24,409 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-02 12:39:24,410 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:39:24,541 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:39:24,541 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 12:39:24,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:39:24 BoogieIcfgContainer [2024-11-02 12:39:24,542 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:39:24,550 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:39:24,551 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:39:24,556 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:39:24,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:39:23" (1/3) ... [2024-11-02 12:39:24,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b029d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:39:24, skipping insertion in model container [2024-11-02 12:39:24,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:23" (2/3) ... [2024-11-02 12:39:24,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b029d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:39:24, skipping insertion in model container [2024-11-02 12:39:24,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:39:24" (3/3) ... [2024-11-02 12:39:24,560 INFO L112 eAbstractionObserver]: Analyzing ICFG safe003_tso.i [2024-11-02 12:39:24,579 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:39:24,580 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:39:24,580 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-02 12:39:24,632 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-02 12:39:24,678 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 47 places, 38 transitions, 88 flow [2024-11-02 12:39:24,974 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3201 states, 3200 states have (on average 3.43) internal successors, (10976), 3200 states have internal predecessors, (10976), 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) [2024-11-02 12:39:25,011 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:39:25,017 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@59b60923, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:39:25,018 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-02 12:39:25,031 INFO L276 IsEmpty]: Start isEmpty. Operand has 3201 states, 3200 states have (on average 3.43) internal successors, (10976), 3200 states have internal predecessors, (10976), 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) [2024-11-02 12:39:25,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-02 12:39:25,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:39:25,054 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:39:25,055 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-02 12:39:25,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:39:25,061 INFO L85 PathProgramCache]: Analyzing trace with hash 958553775, now seen corresponding path program 1 times [2024-11-02 12:39:25,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:39:25,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173226876] [2024-11-02 12:39:25,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:39:25,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:39:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:39:25,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:39:25,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:39:25,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173226876] [2024-11-02 12:39:25,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173226876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:39:25,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:39:25,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:39:25,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191111317] [2024-11-02 12:39:25,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:39:25,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:39:25,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:39:25,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:39:25,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:39:25,755 INFO L87 Difference]: Start difference. First operand has 3201 states, 3200 states have (on average 3.43) internal successors, (10976), 3200 states have internal predecessors, (10976), 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 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-02 12:39:26,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:39:26,100 INFO L93 Difference]: Finished difference Result 4405 states and 14927 transitions. [2024-11-02 12:39:26,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 12:39:26,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2024-11-02 12:39:26,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:39:26,159 INFO L225 Difference]: With dead ends: 4405 [2024-11-02 12:39:26,160 INFO L226 Difference]: Without dead ends: 3033 [2024-11-02 12:39:26,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-02 12:39:26,174 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 71 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:39:26,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 126 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:39:26,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3033 states. [2024-11-02 12:39:26,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3033 to 3033. [2024-11-02 12:39:26,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3033 states, 3032 states have (on average 3.4063324538258577) internal successors, (10328), 3032 states have internal predecessors, (10328), 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) [2024-11-02 12:39:26,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3033 states to 3033 states and 10328 transitions. [2024-11-02 12:39:26,415 INFO L78 Accepts]: Start accepts. Automaton has 3033 states and 10328 transitions. Word has length 14 [2024-11-02 12:39:26,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:39:26,417 INFO L471 AbstractCegarLoop]: Abstraction has 3033 states and 10328 transitions. [2024-11-02 12:39:26,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-02 12:39:26,418 INFO L276 IsEmpty]: Start isEmpty. Operand 3033 states and 10328 transitions. [2024-11-02 12:39:26,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-02 12:39:26,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:39:26,423 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:39:26,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:39:26,424 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-02 12:39:26,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:39:26,425 INFO L85 PathProgramCache]: Analyzing trace with hash 373602480, now seen corresponding path program 1 times [2024-11-02 12:39:26,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:39:26,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465553196] [2024-11-02 12:39:26,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:39:26,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:39:26,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:39:26,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:39:26,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:39:26,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465553196] [2024-11-02 12:39:26,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465553196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:39:26,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:39:26,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:39:26,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678555049] [2024-11-02 12:39:26,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:39:26,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:39:26,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:39:26,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:39:26,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:39:26,707 INFO L87 Difference]: Start difference. First operand 3033 states and 10328 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-11-02 12:39:26,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:39:26,946 INFO L93 Difference]: Finished difference Result 3893 states and 13101 transitions. [2024-11-02 12:39:26,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 12:39:26,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2024-11-02 12:39:26,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:39:26,973 INFO L225 Difference]: With dead ends: 3893 [2024-11-02 12:39:26,973 INFO L226 Difference]: Without dead ends: 2689 [2024-11-02 12:39:26,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-02 12:39:26,981 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 75 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:39:26,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 144 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:39:26,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2689 states. [2024-11-02 12:39:27,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2689 to 2689. [2024-11-02 12:39:27,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2689 states, 2688 states have (on average 3.3720238095238093) internal successors, (9064), 2688 states have internal predecessors, (9064), 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) [2024-11-02 12:39:27,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2689 states to 2689 states and 9064 transitions. [2024-11-02 12:39:27,111 INFO L78 Accepts]: Start accepts. Automaton has 2689 states and 9064 transitions. Word has length 16 [2024-11-02 12:39:27,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:39:27,112 INFO L471 AbstractCegarLoop]: Abstraction has 2689 states and 9064 transitions. [2024-11-02 12:39:27,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-11-02 12:39:27,112 INFO L276 IsEmpty]: Start isEmpty. Operand 2689 states and 9064 transitions. [2024-11-02 12:39:27,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-02 12:39:27,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:39:27,118 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:39:27,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:39:27,118 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-02 12:39:27,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:39:27,120 INFO L85 PathProgramCache]: Analyzing trace with hash -396742863, now seen corresponding path program 1 times [2024-11-02 12:39:27,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:39:27,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015107488] [2024-11-02 12:39:27,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:39:27,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:39:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:39:27,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:39:27,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:39:27,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015107488] [2024-11-02 12:39:27,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015107488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:39:27,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:39:27,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 12:39:27,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166887679] [2024-11-02 12:39:27,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:39:27,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:39:27,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:39:27,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:39:27,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:39:27,375 INFO L87 Difference]: Start difference. First operand 2689 states and 9064 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:39:27,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:39:27,690 INFO L93 Difference]: Finished difference Result 4834 states and 16070 transitions. [2024-11-02 12:39:27,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-02 12:39:27,693 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-02 12:39:27,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:39:27,715 INFO L225 Difference]: With dead ends: 4834 [2024-11-02 12:39:27,715 INFO L226 Difference]: Without dead ends: 2559 [2024-11-02 12:39:27,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-02 12:39:27,723 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 110 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:39:27,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 177 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:39:27,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2559 states. [2024-11-02 12:39:27,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 2029. [2024-11-02 12:39:27,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2029 states, 2028 states have (on average 3.168639053254438) internal successors, (6426), 2028 states have internal predecessors, (6426), 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) [2024-11-02 12:39:27,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2029 states to 2029 states and 6426 transitions. [2024-11-02 12:39:27,815 INFO L78 Accepts]: Start accepts. Automaton has 2029 states and 6426 transitions. Word has length 18 [2024-11-02 12:39:27,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:39:27,816 INFO L471 AbstractCegarLoop]: Abstraction has 2029 states and 6426 transitions. [2024-11-02 12:39:27,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:39:27,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2029 states and 6426 transitions. [2024-11-02 12:39:27,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-02 12:39:27,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:39:27,820 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:39:27,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:39:27,821 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-02 12:39:27,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:39:27,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1714625150, now seen corresponding path program 1 times [2024-11-02 12:39:27,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:39:27,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408963765] [2024-11-02 12:39:27,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:39:27,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:39:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:39:28,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:39:28,003 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:39:28,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408963765] [2024-11-02 12:39:28,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408963765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:39:28,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:39:28,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 12:39:28,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964765631] [2024-11-02 12:39:28,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:39:28,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:39:28,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:39:28,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:39:28,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:39:28,005 INFO L87 Difference]: Start difference. First operand 2029 states and 6426 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-11-02 12:39:28,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:39:28,213 INFO L93 Difference]: Finished difference Result 2989 states and 9454 transitions. [2024-11-02 12:39:28,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 12:39:28,214 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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 20 [2024-11-02 12:39:28,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:39:28,273 INFO L225 Difference]: With dead ends: 2989 [2024-11-02 12:39:28,273 INFO L226 Difference]: Without dead ends: 2364 [2024-11-02 12:39:28,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-02 12:39:28,276 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 83 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:39:28,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 131 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:39:28,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2364 states. [2024-11-02 12:39:28,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2364 to 1804. [2024-11-02 12:39:28,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1804 states, 1803 states have (on average 3.1841375485302272) internal successors, (5741), 1803 states have internal predecessors, (5741), 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) [2024-11-02 12:39:28,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1804 states to 1804 states and 5741 transitions. [2024-11-02 12:39:28,352 INFO L78 Accepts]: Start accepts. Automaton has 1804 states and 5741 transitions. Word has length 20 [2024-11-02 12:39:28,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:39:28,352 INFO L471 AbstractCegarLoop]: Abstraction has 1804 states and 5741 transitions. [2024-11-02 12:39:28,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-11-02 12:39:28,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1804 states and 5741 transitions. [2024-11-02 12:39:28,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-02 12:39:28,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:39:28,357 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:39:28,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-02 12:39:28,358 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-02 12:39:28,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:39:28,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1375873046, now seen corresponding path program 1 times [2024-11-02 12:39:28,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:39:28,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387900184] [2024-11-02 12:39:28,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:39:28,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:39:28,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:39:28,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:39:28,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:39:28,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387900184] [2024-11-02 12:39:28,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387900184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:39:28,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:39:28,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-02 12:39:28,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674252475] [2024-11-02 12:39:28,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:39:28,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 12:39:28,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:39:28,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 12:39:28,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:39:28,582 INFO L87 Difference]: Start difference. First operand 1804 states and 5741 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 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) [2024-11-02 12:39:28,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:39:28,943 INFO L93 Difference]: Finished difference Result 3124 states and 9882 transitions. [2024-11-02 12:39:28,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-02 12:39:28,950 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-02 12:39:28,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:39:28,980 INFO L225 Difference]: With dead ends: 3124 [2024-11-02 12:39:28,980 INFO L226 Difference]: Without dead ends: 2244 [2024-11-02 12:39:28,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2024-11-02 12:39:28,993 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 118 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:39:28,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 207 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:39:29,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2244 states. [2024-11-02 12:39:29,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2244 to 1674. [2024-11-02 12:39:29,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1674 states, 1673 states have (on average 3.192468619246862) internal successors, (5341), 1673 states have internal predecessors, (5341), 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) [2024-11-02 12:39:29,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1674 states to 1674 states and 5341 transitions. [2024-11-02 12:39:29,138 INFO L78 Accepts]: Start accepts. Automaton has 1674 states and 5341 transitions. Word has length 21 [2024-11-02 12:39:29,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:39:29,139 INFO L471 AbstractCegarLoop]: Abstraction has 1674 states and 5341 transitions. [2024-11-02 12:39:29,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 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) [2024-11-02 12:39:29,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1674 states and 5341 transitions. [2024-11-02 12:39:29,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-02 12:39:29,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:39:29,143 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:39:29,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-02 12:39:29,143 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-02 12:39:29,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:39:29,144 INFO L85 PathProgramCache]: Analyzing trace with hash -396504256, now seen corresponding path program 2 times [2024-11-02 12:39:29,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:39:29,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628431833] [2024-11-02 12:39:29,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:39:29,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:39:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:39:29,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:39:29,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:39:29,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628431833] [2024-11-02 12:39:29,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628431833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:39:29,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:39:29,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-02 12:39:29,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485172802] [2024-11-02 12:39:29,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:39:29,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 12:39:29,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:39:29,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 12:39:29,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:39:29,337 INFO L87 Difference]: Start difference. First operand 1674 states and 5341 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 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) [2024-11-02 12:39:29,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:39:29,520 INFO L93 Difference]: Finished difference Result 2594 states and 8287 transitions. [2024-11-02 12:39:29,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 12:39:29,521 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-02 12:39:29,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:39:29,537 INFO L225 Difference]: With dead ends: 2594 [2024-11-02 12:39:29,537 INFO L226 Difference]: Without dead ends: 1094 [2024-11-02 12:39:29,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-02 12:39:29,545 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 107 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:39:29,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 119 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:39:29,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2024-11-02 12:39:29,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1094. [2024-11-02 12:39:29,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1093 states have (on average 3.1399817017383347) internal successors, (3432), 1093 states have internal predecessors, (3432), 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) [2024-11-02 12:39:29,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 3432 transitions. [2024-11-02 12:39:29,589 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 3432 transitions. Word has length 21 [2024-11-02 12:39:29,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:39:29,589 INFO L471 AbstractCegarLoop]: Abstraction has 1094 states and 3432 transitions. [2024-11-02 12:39:29,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 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) [2024-11-02 12:39:29,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 3432 transitions. [2024-11-02 12:39:29,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-02 12:39:29,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:39:29,593 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:39:29,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-02 12:39:29,594 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-02 12:39:29,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:39:29,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1557479498, now seen corresponding path program 1 times [2024-11-02 12:39:29,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:39:29,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997695334] [2024-11-02 12:39:29,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:39:29,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:39:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:39:29,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:39:29,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:39:29,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997695334] [2024-11-02 12:39:29,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997695334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:39:29,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:39:29,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-02 12:39:29,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989100096] [2024-11-02 12:39:29,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:39:29,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 12:39:29,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:39:29,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 12:39:29,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:39:29,829 INFO L87 Difference]: Start difference. First operand 1094 states and 3432 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 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) [2024-11-02 12:39:29,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:39:29,992 INFO L93 Difference]: Finished difference Result 1094 states and 3432 transitions. [2024-11-02 12:39:29,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 12:39:29,992 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 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 22 [2024-11-02 12:39:29,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:39:29,999 INFO L225 Difference]: With dead ends: 1094 [2024-11-02 12:39:29,999 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 12:39:30,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2024-11-02 12:39:30,003 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 80 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:39:30,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 89 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:39:30,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 12:39:30,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 12:39:30,006 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) [2024-11-02 12:39:30,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 12:39:30,011 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2024-11-02 12:39:30,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:39:30,012 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 12:39:30,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 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) [2024-11-02 12:39:30,012 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 12:39:30,012 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 12:39:30,017 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-11-02 12:39:30,017 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-11-02 12:39:30,018 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-02 12:39:30,018 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-02 12:39:30,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-02 12:39:30,022 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2024-11-02 12:39:30,026 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-02 12:39:30,026 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:39:30,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:39:30 BasicIcfg [2024-11-02 12:39:30,030 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:39:30,031 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:39:30,031 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:39:30,031 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:39:30,032 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:39:24" (3/4) ... [2024-11-02 12:39:30,035 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-02 12:39:30,039 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-02 12:39:30,039 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-02 12:39:30,039 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-02 12:39:30,046 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-11-02 12:39:30,046 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-02 12:39:30,046 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-02 12:39:30,046 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-02 12:39:30,132 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b5edf8-99d9-4f66-9b0e-e5b1152987af/bin/utaipan-verify-DbMuA5NWw2/witness.graphml [2024-11-02 12:39:30,133 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b5edf8-99d9-4f66-9b0e-e5b1152987af/bin/utaipan-verify-DbMuA5NWw2/witness.yml [2024-11-02 12:39:30,133 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:39:30,134 INFO L158 Benchmark]: Toolchain (without parser) took 6883.65ms. Allocated memory was 167.8MB in the beginning and 306.2MB in the end (delta: 138.4MB). Free memory was 127.5MB in the beginning and 240.3MB in the end (delta: -112.9MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2024-11-02 12:39:30,134 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 66.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:39:30,134 INFO L158 Benchmark]: CACSL2BoogieTranslator took 681.20ms. Allocated memory is still 167.8MB. Free memory was 127.5MB in the beginning and 104.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-02 12:39:30,135 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.00ms. Allocated memory is still 167.8MB. Free memory was 104.4MB in the beginning and 102.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:39:30,135 INFO L158 Benchmark]: Boogie Preprocessor took 28.85ms. Allocated memory is still 167.8MB. Free memory was 102.3MB in the beginning and 101.5MB in the end (delta: 790.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:39:30,136 INFO L158 Benchmark]: RCFGBuilder took 525.67ms. Allocated memory is still 167.8MB. Free memory was 101.0MB in the beginning and 82.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-02 12:39:30,136 INFO L158 Benchmark]: TraceAbstraction took 5479.85ms. Allocated memory was 167.8MB in the beginning and 306.2MB in the end (delta: 138.4MB). Free memory was 81.3MB in the beginning and 245.6MB in the end (delta: -164.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:39:30,136 INFO L158 Benchmark]: Witness Printer took 102.45ms. Allocated memory is still 306.2MB. Free memory was 245.6MB in the beginning and 240.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 12:39:30,138 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 66.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 681.20ms. Allocated memory is still 167.8MB. Free memory was 127.5MB in the beginning and 104.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.00ms. Allocated memory is still 167.8MB. Free memory was 104.4MB in the beginning and 102.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.85ms. Allocated memory is still 167.8MB. Free memory was 102.3MB in the beginning and 101.5MB in the end (delta: 790.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 525.67ms. Allocated memory is still 167.8MB. Free memory was 101.0MB in the beginning and 82.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5479.85ms. Allocated memory was 167.8MB in the beginning and 306.2MB in the end (delta: 138.4MB). Free memory was 81.3MB in the beginning and 245.6MB in the end (delta: -164.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 102.45ms. Allocated memory is still 306.2MB. Free memory was 245.6MB in the beginning and 240.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: 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 7 procedures, 62 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 5.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 644 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 644 mSDsluCounter, 993 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 700 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 651 IncrementalHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 293 mSDtfsCounter, 651 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3201occurred in iteration=0, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 7 MinimizatonAttempts, 1660 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 489 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-02 12:39:30,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b5edf8-99d9-4f66-9b0e-e5b1152987af/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE