./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c --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_30a504a6-a62e-4096-8bc9-130fa64fadb5/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30a504a6-a62e-4096-8bc9-130fa64fadb5/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30a504a6-a62e-4096-8bc9-130fa64fadb5/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30a504a6-a62e-4096-8bc9-130fa64fadb5/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30a504a6-a62e-4096-8bc9-130fa64fadb5/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30a504a6-a62e-4096-8bc9-130fa64fadb5/bin/uautomizer-verify-4GaUIPS5ZU --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 0d8fc97f7c37032d6079f8a24b87bc520ff0a9c17c3894514011566166a643e8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:01:27,180 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:01:27,279 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30a504a6-a62e-4096-8bc9-130fa64fadb5/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:01:27,284 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:01:27,288 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:01:27,328 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:01:27,328 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:01:27,329 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:01:27,330 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:01:27,330 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:01:27,331 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:01:27,332 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:01:27,332 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:01:27,335 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:01:27,335 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:01:27,336 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:01:27,336 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:01:27,336 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:01:27,337 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:01:27,337 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:01:27,337 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:01:27,341 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:01:27,342 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:01:27,342 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:01:27,342 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:01:27,342 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:01:27,343 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:01:27,343 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:01:27,343 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:01:27,344 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:01:27,344 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:01:27,344 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:01:27,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:01:27,346 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:01:27,346 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:01:27,347 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:01:27,347 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:01:27,348 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:01:27,348 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:01:27,349 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:01:27,349 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:01:27,349 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:01:27,350 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_30a504a6-a62e-4096-8bc9-130fa64fadb5/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30a504a6-a62e-4096-8bc9-130fa64fadb5/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d8fc97f7c37032d6079f8a24b87bc520ff0a9c17c3894514011566166a643e8 [2024-10-31 22:01:27,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:01:27,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:01:27,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:01:27,643 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:01:27,644 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:01:27,645 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30a504a6-a62e-4096-8bc9-130fa64fadb5/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c Unable to find full path for "g++" [2024-10-31 22:01:30,215 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:01:30,471 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:01:30,472 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30a504a6-a62e-4096-8bc9-130fa64fadb5/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c [2024-10-31 22:01:30,481 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30a504a6-a62e-4096-8bc9-130fa64fadb5/bin/uautomizer-verify-4GaUIPS5ZU/data/5ce2a7896/173f8923c3e3482a8a9b6ee9ef5225b3/FLAG0f71fbccf [2024-10-31 22:01:30,807 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30a504a6-a62e-4096-8bc9-130fa64fadb5/bin/uautomizer-verify-4GaUIPS5ZU/data/5ce2a7896/173f8923c3e3482a8a9b6ee9ef5225b3 [2024-10-31 22:01:30,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:01:30,811 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:01:30,813 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:01:30,813 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:01:30,819 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:01:30,820 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:01:30" (1/1) ... [2024-10-31 22:01:30,823 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aaf89eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:30, skipping insertion in model container [2024-10-31 22:01:30,824 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:01:30" (1/1) ... [2024-10-31 22:01:30,850 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:01:31,105 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_30a504a6-a62e-4096-8bc9-130fa64fadb5/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c[3096,3109] [2024-10-31 22:01:31,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:01:31,132 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:01:31,158 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_30a504a6-a62e-4096-8bc9-130fa64fadb5/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c[3096,3109] [2024-10-31 22:01:31,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:01:31,191 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:01:31,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:31 WrapperNode [2024-10-31 22:01:31,192 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:01:31,194 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:01:31,194 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:01:31,194 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:01:31,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:31" (1/1) ... [2024-10-31 22:01:31,213 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:31" (1/1) ... [2024-10-31 22:01:31,242 INFO L138 Inliner]: procedures = 24, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2024-10-31 22:01:31,242 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:01:31,243 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:01:31,244 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:01:31,244 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:01:31,254 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:31" (1/1) ... [2024-10-31 22:01:31,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:31" (1/1) ... [2024-10-31 22:01:31,258 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:31" (1/1) ... [2024-10-31 22:01:31,276 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-10-31 22:01:31,277 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:31" (1/1) ... [2024-10-31 22:01:31,277 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:31" (1/1) ... [2024-10-31 22:01:31,286 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:31" (1/1) ... [2024-10-31 22:01:31,292 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:31" (1/1) ... [2024-10-31 22:01:31,294 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:31" (1/1) ... [2024-10-31 22:01:31,295 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:31" (1/1) ... [2024-10-31 22:01:31,299 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:01:31,300 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:01:31,300 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:01:31,300 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:01:31,301 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:31" (1/1) ... [2024-10-31 22:01:31,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:01:31,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30a504a6-a62e-4096-8bc9-130fa64fadb5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:31,338 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30a504a6-a62e-4096-8bc9-130fa64fadb5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:31,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30a504a6-a62e-4096-8bc9-130fa64fadb5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:01:31,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:01:31,377 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:01:31,377 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:01:31,378 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 22:01:31,378 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 22:01:31,378 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-31 22:01:31,378 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-31 22:01:31,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:01:31,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:01:31,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:01:31,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:01:31,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:01:31,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:01:31,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:01:31,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:01:31,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:01:31,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:01:31,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:01:31,383 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:01:31,527 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:01:31,531 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:01:32,037 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:01:32,037 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:01:32,348 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:01:32,348 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-31 22:01:32,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:01:32 BoogieIcfgContainer [2024-10-31 22:01:32,349 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:01:32,352 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:01:32,353 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:01:32,357 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:01:32,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:01:30" (1/3) ... [2024-10-31 22:01:32,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4c9a38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:01:32, skipping insertion in model container [2024-10-31 22:01:32,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:31" (2/3) ... [2024-10-31 22:01:32,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4c9a38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:01:32, skipping insertion in model container [2024-10-31 22:01:32,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:01:32" (3/3) ... [2024-10-31 22:01:32,361 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-min-max-1.wvr.c [2024-10-31 22:01:32,382 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:01:32,382 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:01:32,382 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:01:32,452 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-31 22:01:32,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 37 transitions, 95 flow [2024-10-31 22:01:32,620 INFO L124 PetriNetUnfolderBase]: 3/34 cut-off events. [2024-10-31 22:01:32,621 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:01:32,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 34 events. 3/34 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 56 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2024-10-31 22:01:32,629 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 37 transitions, 95 flow [2024-10-31 22:01:32,635 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 33 transitions, 84 flow [2024-10-31 22:01:32,649 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:01:32,659 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=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;@234f95e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:01:32,660 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-31 22:01:32,691 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:01:32,691 INFO L124 PetriNetUnfolderBase]: 3/32 cut-off events. [2024-10-31 22:01:32,691 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:01:32,692 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:01:32,693 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:01:32,693 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)] === [2024-10-31 22:01:32,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:32,701 INFO L85 PathProgramCache]: Analyzing trace with hash -178969562, now seen corresponding path program 1 times [2024-10-31 22:01:32,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:32,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929768331] [2024-10-31 22:01:32,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:32,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:33,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:33,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:33,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929768331] [2024-10-31 22:01:33,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929768331] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:33,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:33,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:01:33,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761497213] [2024-10-31 22:01:33,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:33,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:01:33,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:33,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:01:33,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:01:33,382 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2024-10-31 22:01:33,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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) [2024-10-31 22:01:33,386 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:01:33,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2024-10-31 22:01:33,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:01:33,667 INFO L124 PetriNetUnfolderBase]: 483/830 cut-off events. [2024-10-31 22:01:33,667 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-31 22:01:33,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1653 conditions, 830 events. 483/830 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4166 event pairs, 256 based on Foata normal form. 32/808 useless extension candidates. Maximal degree in co-relation 1560. Up to 520 conditions per place. [2024-10-31 22:01:33,678 INFO L140 encePairwiseOnDemand]: 33/37 looper letters, 32 selfloop transitions, 3 changer transitions 0/45 dead transitions. [2024-10-31 22:01:33,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 45 transitions, 184 flow [2024-10-31 22:01:33,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:01:33,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:01:33,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 88 transitions. [2024-10-31 22:01:33,692 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5945945945945946 [2024-10-31 22:01:33,694 INFO L175 Difference]: Start difference. First operand has 40 places, 33 transitions, 84 flow. Second operand 4 states and 88 transitions. [2024-10-31 22:01:33,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 45 transitions, 184 flow [2024-10-31 22:01:33,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 45 transitions, 168 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-31 22:01:33,704 INFO L231 Difference]: Finished difference. Result has 38 places, 34 transitions, 86 flow [2024-10-31 22:01:33,707 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=86, PETRI_PLACES=38, PETRI_TRANSITIONS=34} [2024-10-31 22:01:33,712 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2024-10-31 22:01:33,713 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 34 transitions, 86 flow [2024-10-31 22:01:33,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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) [2024-10-31 22:01:33,714 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:01:33,714 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:01:33,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:01:33,715 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)] === [2024-10-31 22:01:33,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:33,716 INFO L85 PathProgramCache]: Analyzing trace with hash 2058521415, now seen corresponding path program 1 times [2024-10-31 22:01:33,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:33,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990090840] [2024-10-31 22:01:33,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:33,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:33,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:33,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:33,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:33,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990090840] [2024-10-31 22:01:33,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990090840] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:33,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:33,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:01:33,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681189864] [2024-10-31 22:01:33,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:33,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:01:33,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:33,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:01:33,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:01:33,955 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2024-10-31 22:01:33,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 34 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2024-10-31 22:01:33,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:01:33,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2024-10-31 22:01:33,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:01:34,250 INFO L124 PetriNetUnfolderBase]: 540/926 cut-off events. [2024-10-31 22:01:34,250 INFO L125 PetriNetUnfolderBase]: For 86/127 co-relation queries the response was YES. [2024-10-31 22:01:34,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1981 conditions, 926 events. 540/926 cut-off events. For 86/127 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4711 event pairs, 319 based on Foata normal form. 79/975 useless extension candidates. Maximal degree in co-relation 494. Up to 598 conditions per place. [2024-10-31 22:01:34,258 INFO L140 encePairwiseOnDemand]: 33/37 looper letters, 33 selfloop transitions, 3 changer transitions 0/46 dead transitions. [2024-10-31 22:01:34,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 191 flow [2024-10-31 22:01:34,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:01:34,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:01:34,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 87 transitions. [2024-10-31 22:01:34,267 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5878378378378378 [2024-10-31 22:01:34,267 INFO L175 Difference]: Start difference. First operand has 38 places, 34 transitions, 86 flow. Second operand 4 states and 87 transitions. [2024-10-31 22:01:34,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 191 flow [2024-10-31 22:01:34,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 46 transitions, 186 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:01:34,271 INFO L231 Difference]: Finished difference. Result has 40 places, 35 transitions, 96 flow [2024-10-31 22:01:34,274 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=96, PETRI_PLACES=40, PETRI_TRANSITIONS=35} [2024-10-31 22:01:34,275 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2024-10-31 22:01:34,275 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 35 transitions, 96 flow [2024-10-31 22:01:34,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2024-10-31 22:01:34,276 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:01:34,276 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:01:34,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:01:34,277 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)] === [2024-10-31 22:01:34,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:34,280 INFO L85 PathProgramCache]: Analyzing trace with hash -478229390, now seen corresponding path program 1 times [2024-10-31 22:01:34,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:34,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527736029] [2024-10-31 22:01:34,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:34,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:34,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:34,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:01:34,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:34,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527736029] [2024-10-31 22:01:34,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527736029] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:34,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:34,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:01:34,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192029123] [2024-10-31 22:01:34,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:34,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:01:34,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:34,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:01:34,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:01:34,514 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 37 [2024-10-31 22:01:34,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 35 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2024-10-31 22:01:34,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:01:34,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 37 [2024-10-31 22:01:34,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:01:34,685 INFO L124 PetriNetUnfolderBase]: 465/803 cut-off events. [2024-10-31 22:01:34,686 INFO L125 PetriNetUnfolderBase]: For 121/183 co-relation queries the response was YES. [2024-10-31 22:01:34,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1834 conditions, 803 events. 465/803 cut-off events. For 121/183 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3995 event pairs, 388 based on Foata normal form. 62/831 useless extension candidates. Maximal degree in co-relation 533. Up to 712 conditions per place. [2024-10-31 22:01:34,693 INFO L140 encePairwiseOnDemand]: 34/37 looper letters, 23 selfloop transitions, 2 changer transitions 0/36 dead transitions. [2024-10-31 22:01:34,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 36 transitions, 148 flow [2024-10-31 22:01:34,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:01:34,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:01:34,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2024-10-31 22:01:34,695 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5945945945945946 [2024-10-31 22:01:34,695 INFO L175 Difference]: Start difference. First operand has 40 places, 35 transitions, 96 flow. Second operand 3 states and 66 transitions. [2024-10-31 22:01:34,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 36 transitions, 148 flow [2024-10-31 22:01:34,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 36 transitions, 144 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:01:34,698 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 104 flow [2024-10-31 22:01:34,698 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=41, PETRI_TRANSITIONS=36} [2024-10-31 22:01:34,700 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2024-10-31 22:01:34,700 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 104 flow [2024-10-31 22:01:34,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2024-10-31 22:01:34,700 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:01:34,701 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:01:34,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:01:34,702 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)] === [2024-10-31 22:01:34,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:34,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1993299354, now seen corresponding path program 1 times [2024-10-31 22:01:34,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:34,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954477116] [2024-10-31 22:01:34,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:34,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:35,374 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:01:35,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:35,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954477116] [2024-10-31 22:01:35,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954477116] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:01:35,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164872515] [2024-10-31 22:01:35,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:35,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:01:35,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30a504a6-a62e-4096-8bc9-130fa64fadb5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:35,379 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30a504a6-a62e-4096-8bc9-130fa64fadb5/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:01:35,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30a504a6-a62e-4096-8bc9-130fa64fadb5/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:01:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:35,511 INFO L255 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-31 22:01:35,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:35,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-31 22:01:35,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-31 22:01:35,970 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:35,970 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:01:36,500 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:01:36,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164872515] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:01:36,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:01:36,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 8] total 20 [2024-10-31 22:01:36,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709393162] [2024-10-31 22:01:36,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:01:36,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-31 22:01:36,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:36,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-31 22:01:36,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2024-10-31 22:01:36,653 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-10-31 22:01:36,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 104 flow. Second operand has 20 states, 20 states have (on average 14.35) internal successors, (287), 20 states have internal predecessors, (287), 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) [2024-10-31 22:01:36,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:01:36,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-10-31 22:01:36,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:01:37,987 INFO L124 PetriNetUnfolderBase]: 1381/2227 cut-off events. [2024-10-31 22:01:37,988 INFO L125 PetriNetUnfolderBase]: For 455/455 co-relation queries the response was YES. [2024-10-31 22:01:37,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5086 conditions, 2227 events. 1381/2227 cut-off events. For 455/455 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 11372 event pairs, 109 based on Foata normal form. 3/2220 useless extension candidates. Maximal degree in co-relation 5073. Up to 377 conditions per place. [2024-10-31 22:01:37,998 INFO L140 encePairwiseOnDemand]: 26/37 looper letters, 0 selfloop transitions, 0 changer transitions 167/167 dead transitions. [2024-10-31 22:01:37,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 167 transitions, 792 flow [2024-10-31 22:01:37,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-31 22:01:37,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-10-31 22:01:38,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 359 transitions. [2024-10-31 22:01:38,002 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.539039039039039 [2024-10-31 22:01:38,002 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 104 flow. Second operand 18 states and 359 transitions. [2024-10-31 22:01:38,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 167 transitions, 792 flow [2024-10-31 22:01:38,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 167 transitions, 788 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-31 22:01:38,007 INFO L231 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2024-10-31 22:01:38,007 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=0, PETRI_PLACES=55, PETRI_TRANSITIONS=0} [2024-10-31 22:01:38,008 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 15 predicate places. [2024-10-31 22:01:38,009 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2024-10-31 22:01:38,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 14.35) internal successors, (287), 20 states have internal predecessors, (287), 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) [2024-10-31 22:01:38,013 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-10-31 22:01:38,013 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-10-31 22:01:38,014 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-10-31 22:01:38,014 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-31 22:01:38,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30a504a6-a62e-4096-8bc9-130fa64fadb5/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:01:38,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30a504a6-a62e-4096-8bc9-130fa64fadb5/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:01:38,216 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-31 22:01:38,220 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 22:01:38,220 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:01:38,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:01:38 BasicIcfg [2024-10-31 22:01:38,228 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:01:38,229 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:01:38,229 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:01:38,229 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:01:38,230 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:01:32" (3/4) ... [2024-10-31 22:01:38,234 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 22:01:38,238 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-31 22:01:38,239 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-31 22:01:38,239 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-10-31 22:01:38,246 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 115 nodes and edges [2024-10-31 22:01:38,247 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2024-10-31 22:01:38,247 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-10-31 22:01:38,248 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-31 22:01:38,397 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30a504a6-a62e-4096-8bc9-130fa64fadb5/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:01:38,398 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30a504a6-a62e-4096-8bc9-130fa64fadb5/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 22:01:38,398 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:01:38,399 INFO L158 Benchmark]: Toolchain (without parser) took 7587.76ms. Allocated memory was 159.4MB in the beginning and 251.7MB in the end (delta: 92.3MB). Free memory was 124.2MB in the beginning and 87.9MB in the end (delta: 36.3MB). Peak memory consumption was 129.1MB. Max. memory is 16.1GB. [2024-10-31 22:01:38,399 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory is still 58.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:01:38,400 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.20ms. Allocated memory is still 159.4MB. Free memory was 124.2MB in the beginning and 110.1MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-31 22:01:38,400 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.07ms. Allocated memory is still 159.4MB. Free memory was 110.1MB in the beginning and 108.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:01:38,401 INFO L158 Benchmark]: Boogie Preprocessor took 55.67ms. Allocated memory is still 159.4MB. Free memory was 108.0MB in the beginning and 105.3MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:01:38,401 INFO L158 Benchmark]: RCFGBuilder took 1049.36ms. Allocated memory is still 159.4MB. Free memory was 105.3MB in the beginning and 57.7MB in the end (delta: 47.6MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-10-31 22:01:38,402 INFO L158 Benchmark]: TraceAbstraction took 5876.17ms. Allocated memory was 159.4MB in the beginning and 251.7MB in the end (delta: 92.3MB). Free memory was 57.1MB in the beginning and 93.1MB in the end (delta: -36.0MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. [2024-10-31 22:01:38,402 INFO L158 Benchmark]: Witness Printer took 169.23ms. Allocated memory is still 251.7MB. Free memory was 93.1MB in the beginning and 87.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:01:38,404 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory is still 58.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.20ms. Allocated memory is still 159.4MB. Free memory was 124.2MB in the beginning and 110.1MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.07ms. Allocated memory is still 159.4MB. Free memory was 110.1MB in the beginning and 108.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.67ms. Allocated memory is still 159.4MB. Free memory was 108.0MB in the beginning and 105.3MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1049.36ms. Allocated memory is still 159.4MB. Free memory was 105.3MB in the beginning and 57.7MB in the end (delta: 47.6MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 5876.17ms. Allocated memory was 159.4MB in the beginning and 251.7MB in the end (delta: 92.3MB). Free memory was 57.1MB in the beginning and 93.1MB in the end (delta: -36.0MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. * Witness Printer took 169.23ms. Allocated memory is still 251.7MB. Free memory was 93.1MB in the beginning and 87.9MB 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: - PositiveResult [Line: 115]: 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, 58 locations, 4 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: 5.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 400 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 384 mSDsluCounter, 204 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 191 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 792 IncrementalHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 13 mSDtfsCounter, 792 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 981 SizeOfPredicates, 13 NumberOfNonLiveVariables, 195 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 5/12 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! [2024-10-31 22:01:38,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30a504a6-a62e-4096-8bc9-130fa64fadb5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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