./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe029_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2872a6ef-c3f9-4ef5-a622-013cd07a81c0/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2872a6ef-c3f9-4ef5-a622-013cd07a81c0/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2872a6ef-c3f9-4ef5-a622-013cd07a81c0/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2872a6ef-c3f9-4ef5-a622-013cd07a81c0/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe029_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2872a6ef-c3f9-4ef5-a622-013cd07a81c0/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2872a6ef-c3f9-4ef5-a622-013cd07a81c0/bin/uautomizer-verify-BQ2R08f2Ya --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef851e22a0a98929f1b90876fcac5ec793e10efa4691f239ca948c8dc39b94fd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:51:01,039 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:51:01,104 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2872a6ef-c3f9-4ef5-a622-013cd07a81c0/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 06:51:01,109 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:51:01,110 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:51:01,133 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:51:01,133 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:51:01,134 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:51:01,134 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:51:01,135 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:51:01,136 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:51:01,136 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:51:01,137 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:51:01,137 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:51:01,138 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:51:01,138 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:51:01,139 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:51:01,139 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:51:01,140 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:51:01,140 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:51:01,141 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:51:01,141 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:51:01,142 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:51:01,142 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:51:01,143 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:51:01,143 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:51:01,144 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:51:01,144 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:51:01,144 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:51:01,145 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:51:01,145 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:51:01,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:51:01,146 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:51:01,146 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:51:01,146 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:51:01,146 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:51:01,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:51:01,147 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:51:01,147 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:51:01,147 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:51:01,147 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:51:01,148 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:51:01,148 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_2872a6ef-c3f9-4ef5-a622-013cd07a81c0/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2872a6ef-c3f9-4ef5-a622-013cd07a81c0/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef851e22a0a98929f1b90876fcac5ec793e10efa4691f239ca948c8dc39b94fd [2023-11-29 06:51:01,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:51:01,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:51:01,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:51:01,411 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:51:01,412 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:51:01,413 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2872a6ef-c3f9-4ef5-a622-013cd07a81c0/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread-wmm/safe029_tso.i [2023-11-29 06:51:04,080 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:51:04,341 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:51:04,342 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2872a6ef-c3f9-4ef5-a622-013cd07a81c0/sv-benchmarks/c/pthread-wmm/safe029_tso.i [2023-11-29 06:51:04,356 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2872a6ef-c3f9-4ef5-a622-013cd07a81c0/bin/uautomizer-verify-BQ2R08f2Ya/data/41f5a44ee/963e15dd2d9b47b99061a4843a11345b/FLAGcf489709f [2023-11-29 06:51:04,369 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2872a6ef-c3f9-4ef5-a622-013cd07a81c0/bin/uautomizer-verify-BQ2R08f2Ya/data/41f5a44ee/963e15dd2d9b47b99061a4843a11345b [2023-11-29 06:51:04,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:51:04,372 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:51:04,373 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:51:04,373 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:51:04,377 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:51:04,378 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:51:04" (1/1) ... [2023-11-29 06:51:04,379 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53831433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:04, skipping insertion in model container [2023-11-29 06:51:04,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:51:04" (1/1) ... [2023-11-29 06:51:04,424 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:51:04,564 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_2872a6ef-c3f9-4ef5-a622-013cd07a81c0/sv-benchmarks/c/pthread-wmm/safe029_tso.i[945,958] [2023-11-29 06:51:04,706 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:51:04,716 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:51:04,728 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_2872a6ef-c3f9-4ef5-a622-013cd07a81c0/sv-benchmarks/c/pthread-wmm/safe029_tso.i[945,958] [2023-11-29 06:51:04,756 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:51:04,786 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:51:04,787 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:51:04,794 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:51:04,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:04 WrapperNode [2023-11-29 06:51:04,795 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:51:04,796 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:51:04,796 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:51:04,797 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:51:04,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:04" (1/1) ... [2023-11-29 06:51:04,817 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:04" (1/1) ... [2023-11-29 06:51:04,838 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2023-11-29 06:51:04,839 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:51:04,840 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:51:04,840 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:51:04,840 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:51:04,851 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:04" (1/1) ... [2023-11-29 06:51:04,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:04" (1/1) ... [2023-11-29 06:51:04,854 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:04" (1/1) ... [2023-11-29 06:51:04,867 INFO L175 MemorySlicer]: Split 4 memory accesses to 3 slices as follows [2, 1, 1]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2023-11-29 06:51:04,867 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:04" (1/1) ... [2023-11-29 06:51:04,867 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:04" (1/1) ... [2023-11-29 06:51:04,872 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:04" (1/1) ... [2023-11-29 06:51:04,874 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:04" (1/1) ... [2023-11-29 06:51:04,875 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:04" (1/1) ... [2023-11-29 06:51:04,876 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:04" (1/1) ... [2023-11-29 06:51:04,878 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:51:04,879 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:51:04,879 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:51:04,879 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:51:04,879 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:04" (1/1) ... [2023-11-29 06:51:04,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:51:04,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2872a6ef-c3f9-4ef5-a622-013cd07a81c0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:04,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2872a6ef-c3f9-4ef5-a622-013cd07a81c0/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:51:04,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2872a6ef-c3f9-4ef5-a622-013cd07a81c0/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:51:04,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 06:51:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 06:51:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 06:51:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 06:51:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:51:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 06:51:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 06:51:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-29 06:51:04,935 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-29 06:51:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-29 06:51:04,935 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-29 06:51:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:51:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 06:51:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 06:51:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 06:51:04,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:51:04,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:51:04,937 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 06:51:05,062 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:51:05,064 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:51:05,192 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:51:05,275 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:51:05,275 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 06:51:05,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:51:05 BoogieIcfgContainer [2023-11-29 06:51:05,276 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:51:05,279 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:51:05,279 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:51:05,282 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:51:05,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:51:04" (1/3) ... [2023-11-29 06:51:05,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505e2149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:51:05, skipping insertion in model container [2023-11-29 06:51:05,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:04" (2/3) ... [2023-11-29 06:51:05,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505e2149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:51:05, skipping insertion in model container [2023-11-29 06:51:05,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:51:05" (3/3) ... [2023-11-29 06:51:05,285 INFO L112 eAbstractionObserver]: Analyzing ICFG safe029_tso.i [2023-11-29 06:51:05,294 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 06:51:05,305 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:51:05,305 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 06:51:05,305 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 06:51:05,341 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 06:51:05,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 29 transitions, 66 flow [2023-11-29 06:51:05,401 INFO L124 PetriNetUnfolderBase]: 1/27 cut-off events. [2023-11-29 06:51:05,401 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 06:51:05,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 27 events. 1/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2023-11-29 06:51:05,422 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 29 transitions, 66 flow [2023-11-29 06:51:05,426 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 24 transitions, 54 flow [2023-11-29 06:51:05,436 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:51:05,441 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=PETRI_NET, 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;@4bbd5bc3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:51:05,442 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-29 06:51:05,452 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 06:51:05,452 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2023-11-29 06:51:05,453 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 06:51:05,453 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:51:05,453 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:05,454 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 06:51:05,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:05,459 INFO L85 PathProgramCache]: Analyzing trace with hash 596254971, now seen corresponding path program 1 times [2023-11-29 06:51:05,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:05,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037226722] [2023-11-29 06:51:05,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:05,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:05,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:51:05,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:05,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037226722] [2023-11-29 06:51:05,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037226722] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:05,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:51:05,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:51:05,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397538968] [2023-11-29 06:51:05,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:05,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:51:05,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:05,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:51:05,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:51:05,985 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 29 [2023-11-29 06:51:05,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 24 transitions, 54 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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) [2023-11-29 06:51:05,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:51:05,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 29 [2023-11-29 06:51:05,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:51:06,137 INFO L124 PetriNetUnfolderBase]: 78/215 cut-off events. [2023-11-29 06:51:06,137 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 06:51:06,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 215 events. 78/215 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1084 event pairs, 32 based on Foata normal form. 9/215 useless extension candidates. Maximal degree in co-relation 371. Up to 115 conditions per place. [2023-11-29 06:51:06,142 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 16 selfloop transitions, 3 changer transitions 15/45 dead transitions. [2023-11-29 06:51:06,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 45 transitions, 167 flow [2023-11-29 06:51:06,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:51:06,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-29 06:51:06,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 127 transitions. [2023-11-29 06:51:06,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.625615763546798 [2023-11-29 06:51:06,156 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 127 transitions. [2023-11-29 06:51:06,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 127 transitions. [2023-11-29 06:51:06,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:51:06,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 127 transitions. [2023-11-29 06:51:06,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 18.142857142857142) internal successors, (127), 7 states have internal predecessors, (127), 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) [2023-11-29 06:51:06,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 29.0) internal successors, (232), 8 states have internal predecessors, (232), 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) [2023-11-29 06:51:06,167 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 29.0) internal successors, (232), 8 states have internal predecessors, (232), 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) [2023-11-29 06:51:06,169 INFO L175 Difference]: Start difference. First operand has 31 places, 24 transitions, 54 flow. Second operand 7 states and 127 transitions. [2023-11-29 06:51:06,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 45 transitions, 167 flow [2023-11-29 06:51:06,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 45 transitions, 164 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:51:06,174 INFO L231 Difference]: Finished difference. Result has 40 places, 26 transitions, 87 flow [2023-11-29 06:51:06,176 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=87, PETRI_PLACES=40, PETRI_TRANSITIONS=26} [2023-11-29 06:51:06,180 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 9 predicate places. [2023-11-29 06:51:06,180 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 26 transitions, 87 flow [2023-11-29 06:51:06,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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) [2023-11-29 06:51:06,180 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:51:06,180 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:06,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:51:06,181 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 06:51:06,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:06,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1631936974, now seen corresponding path program 1 times [2023-11-29 06:51:06,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:06,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312843622] [2023-11-29 06:51:06,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:06,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:06,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:06,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:51:06,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:06,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312843622] [2023-11-29 06:51:06,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312843622] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:06,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:51:06,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:51:06,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569997967] [2023-11-29 06:51:06,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:06,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:51:06,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:06,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:51:06,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:51:06,428 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 29 [2023-11-29 06:51:06,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 26 transitions, 87 flow. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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) [2023-11-29 06:51:06,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:51:06,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 29 [2023-11-29 06:51:06,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:51:06,762 INFO L124 PetriNetUnfolderBase]: 378/747 cut-off events. [2023-11-29 06:51:06,762 INFO L125 PetriNetUnfolderBase]: For 547/547 co-relation queries the response was YES. [2023-11-29 06:51:06,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1919 conditions, 747 events. 378/747 cut-off events. For 547/547 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4105 event pairs, 2 based on Foata normal form. 38/784 useless extension candidates. Maximal degree in co-relation 1904. Up to 207 conditions per place. [2023-11-29 06:51:06,771 INFO L140 encePairwiseOnDemand]: 21/29 looper letters, 37 selfloop transitions, 9 changer transitions 47/100 dead transitions. [2023-11-29 06:51:06,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 100 transitions, 508 flow [2023-11-29 06:51:06,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:51:06,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 06:51:06,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 213 transitions. [2023-11-29 06:51:06,775 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5649867374005305 [2023-11-29 06:51:06,775 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 213 transitions. [2023-11-29 06:51:06,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 213 transitions. [2023-11-29 06:51:06,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:51:06,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 213 transitions. [2023-11-29 06:51:06,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 16.384615384615383) internal successors, (213), 13 states have internal predecessors, (213), 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) [2023-11-29 06:51:06,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 29.0) internal successors, (406), 14 states have internal predecessors, (406), 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) [2023-11-29 06:51:06,780 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 29.0) internal successors, (406), 14 states have internal predecessors, (406), 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) [2023-11-29 06:51:06,780 INFO L175 Difference]: Start difference. First operand has 40 places, 26 transitions, 87 flow. Second operand 13 states and 213 transitions. [2023-11-29 06:51:06,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 100 transitions, 508 flow [2023-11-29 06:51:06,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 100 transitions, 478 flow, removed 13 selfloop flow, removed 3 redundant places. [2023-11-29 06:51:06,790 INFO L231 Difference]: Finished difference. Result has 57 places, 30 transitions, 156 flow [2023-11-29 06:51:06,791 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=156, PETRI_PLACES=57, PETRI_TRANSITIONS=30} [2023-11-29 06:51:06,791 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 26 predicate places. [2023-11-29 06:51:06,792 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 30 transitions, 156 flow [2023-11-29 06:51:06,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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) [2023-11-29 06:51:06,792 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:51:06,792 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:06,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 06:51:06,793 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 06:51:06,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:06,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1890608637, now seen corresponding path program 1 times [2023-11-29 06:51:06,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:06,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563087981] [2023-11-29 06:51:06,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:06,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:06,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:06,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:51:06,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:06,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563087981] [2023-11-29 06:51:06,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563087981] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:06,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:51:06,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:51:06,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438449496] [2023-11-29 06:51:06,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:06,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:51:06,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:06,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:51:06,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:51:06,940 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 29 [2023-11-29 06:51:06,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 30 transitions, 156 flow. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2023-11-29 06:51:06,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:51:06,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 29 [2023-11-29 06:51:06,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:51:07,039 INFO L124 PetriNetUnfolderBase]: 117/327 cut-off events. [2023-11-29 06:51:07,039 INFO L125 PetriNetUnfolderBase]: For 491/497 co-relation queries the response was YES. [2023-11-29 06:51:07,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 824 conditions, 327 events. 117/327 cut-off events. For 491/497 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1736 event pairs, 24 based on Foata normal form. 22/328 useless extension candidates. Maximal degree in co-relation 798. Up to 126 conditions per place. [2023-11-29 06:51:07,043 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 16 selfloop transitions, 4 changer transitions 2/40 dead transitions. [2023-11-29 06:51:07,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 40 transitions, 222 flow [2023-11-29 06:51:07,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:51:07,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 06:51:07,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2023-11-29 06:51:07,045 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7241379310344828 [2023-11-29 06:51:07,045 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 84 transitions. [2023-11-29 06:51:07,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 84 transitions. [2023-11-29 06:51:07,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:51:07,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 84 transitions. [2023-11-29 06:51:07,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2023-11-29 06:51:07,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 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) [2023-11-29 06:51:07,047 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 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) [2023-11-29 06:51:07,048 INFO L175 Difference]: Start difference. First operand has 57 places, 30 transitions, 156 flow. Second operand 4 states and 84 transitions. [2023-11-29 06:51:07,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 40 transitions, 222 flow [2023-11-29 06:51:07,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 40 transitions, 193 flow, removed 13 selfloop flow, removed 9 redundant places. [2023-11-29 06:51:07,054 INFO L231 Difference]: Finished difference. Result has 45 places, 33 transitions, 157 flow [2023-11-29 06:51:07,054 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=157, PETRI_PLACES=45, PETRI_TRANSITIONS=33} [2023-11-29 06:51:07,055 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 14 predicate places. [2023-11-29 06:51:07,055 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 33 transitions, 157 flow [2023-11-29 06:51:07,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2023-11-29 06:51:07,055 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:51:07,056 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:07,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 06:51:07,056 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 06:51:07,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:07,057 INFO L85 PathProgramCache]: Analyzing trace with hash -909778996, now seen corresponding path program 1 times [2023-11-29 06:51:07,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:07,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480905855] [2023-11-29 06:51:07,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:07,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:07,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:07,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:51:07,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:07,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480905855] [2023-11-29 06:51:07,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480905855] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:07,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:51:07,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:51:07,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247342858] [2023-11-29 06:51:07,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:07,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:51:07,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:07,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:51:07,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:51:07,193 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 29 [2023-11-29 06:51:07,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 33 transitions, 157 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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) [2023-11-29 06:51:07,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:51:07,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 29 [2023-11-29 06:51:07,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:51:07,266 INFO L124 PetriNetUnfolderBase]: 80/212 cut-off events. [2023-11-29 06:51:07,266 INFO L125 PetriNetUnfolderBase]: For 145/204 co-relation queries the response was YES. [2023-11-29 06:51:07,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 212 events. 80/212 cut-off events. For 145/204 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 987 event pairs, 6 based on Foata normal form. 25/217 useless extension candidates. Maximal degree in co-relation 557. Up to 74 conditions per place. [2023-11-29 06:51:07,268 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 0 selfloop transitions, 0 changer transitions 38/38 dead transitions. [2023-11-29 06:51:07,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 38 transitions, 208 flow [2023-11-29 06:51:07,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:51:07,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 06:51:07,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 100 transitions. [2023-11-29 06:51:07,269 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6896551724137931 [2023-11-29 06:51:07,269 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 100 transitions. [2023-11-29 06:51:07,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 100 transitions. [2023-11-29 06:51:07,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:51:07,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 100 transitions. [2023-11-29 06:51:07,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2023-11-29 06:51:07,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 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) [2023-11-29 06:51:07,271 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 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) [2023-11-29 06:51:07,271 INFO L175 Difference]: Start difference. First operand has 45 places, 33 transitions, 157 flow. Second operand 5 states and 100 transitions. [2023-11-29 06:51:07,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 38 transitions, 208 flow [2023-11-29 06:51:07,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 38 transitions, 189 flow, removed 4 selfloop flow, removed 5 redundant places. [2023-11-29 06:51:07,273 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2023-11-29 06:51:07,273 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2023-11-29 06:51:07,274 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 9 predicate places. [2023-11-29 06:51:07,274 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2023-11-29 06:51:07,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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) [2023-11-29 06:51:07,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-29 06:51:07,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-11-29 06:51:07,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-29 06:51:07,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 06:51:07,278 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-29 06:51:07,281 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 06:51:07,281 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 06:51:07,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:51:07 BasicIcfg [2023-11-29 06:51:07,286 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 06:51:07,286 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:51:07,287 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:51:07,287 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:51:07,287 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:51:05" (3/4) ... [2023-11-29 06:51:07,289 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 06:51:07,291 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-29 06:51:07,292 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-29 06:51:07,296 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2023-11-29 06:51:07,296 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-29 06:51:07,297 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 06:51:07,297 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 06:51:07,369 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2872a6ef-c3f9-4ef5-a622-013cd07a81c0/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 06:51:07,370 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2872a6ef-c3f9-4ef5-a622-013cd07a81c0/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 06:51:07,370 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:51:07,371 INFO L158 Benchmark]: Toolchain (without parser) took 2998.09ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 108.0MB in the beginning and 88.8MB in the end (delta: 19.1MB). Peak memory consumption was 68.3MB. Max. memory is 16.1GB. [2023-11-29 06:51:07,371 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 142.6MB. Free memory was 116.2MB in the beginning and 115.9MB in the end (delta: 241.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:51:07,371 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.35ms. Allocated memory is still 142.6MB. Free memory was 108.0MB in the beginning and 87.5MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 06:51:07,372 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.73ms. Allocated memory is still 142.6MB. Free memory was 87.5MB in the beginning and 85.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:51:07,372 INFO L158 Benchmark]: Boogie Preprocessor took 38.37ms. Allocated memory is still 142.6MB. Free memory was 85.8MB in the beginning and 83.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:51:07,373 INFO L158 Benchmark]: RCFGBuilder took 397.74ms. Allocated memory is still 142.6MB. Free memory was 83.3MB in the beginning and 64.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 06:51:07,373 INFO L158 Benchmark]: TraceAbstraction took 2006.91ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 63.9MB in the beginning and 93.0MB in the end (delta: -29.1MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2023-11-29 06:51:07,374 INFO L158 Benchmark]: Witness Printer took 83.41ms. Allocated memory is still 188.7MB. Free memory was 93.0MB in the beginning and 88.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 06:51:07,376 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 142.6MB. Free memory was 116.2MB in the beginning and 115.9MB in the end (delta: 241.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 422.35ms. Allocated memory is still 142.6MB. Free memory was 108.0MB in the beginning and 87.5MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.73ms. Allocated memory is still 142.6MB. Free memory was 87.5MB in the beginning and 85.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.37ms. Allocated memory is still 142.6MB. Free memory was 85.8MB in the beginning and 83.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 397.74ms. Allocated memory is still 142.6MB. Free memory was 83.3MB in the beginning and 64.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2006.91ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 63.9MB in the beginning and 93.0MB in the end (delta: -29.1MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * Witness Printer took 83.41ms. Allocated memory is still 188.7MB. Free memory was 93.0MB in the beginning and 88.8MB 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: - 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 5 procedures, 45 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 133 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 123 mSDsluCounter, 94 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 75 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 244 IncrementalHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 19 mSDtfsCounter, 244 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=157occurred in iteration=3, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 223 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 06:51:07,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2872a6ef-c3f9-4ef5-a622-013cd07a81c0/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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