./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-time-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d498b-d624-4e07-9a03-c5a1ec00bc4f/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d498b-d624-4e07-9a03-c5a1ec00bc4f/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_0f8d498b-d624-4e07-9a03-c5a1ec00bc4f/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d498b-d624-4e07-9a03-c5a1ec00bc4f/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-time-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d498b-d624-4e07-9a03-c5a1ec00bc4f/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_0f8d498b-d624-4e07-9a03-c5a1ec00bc4f/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 ef62179d17d90afe74c7b4fe8189ca3bb011e55daf3a169b42e4b3589691fc53 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:43:44,446 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:43:44,511 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d498b-d624-4e07-9a03-c5a1ec00bc4f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 05:43:44,516 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:43:44,516 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:43:44,540 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:43:44,541 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:43:44,541 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:43:44,542 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:43:44,543 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:43:44,543 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:43:44,544 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:43:44,544 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:43:44,545 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:43:44,545 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:43:44,546 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:43:44,546 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:43:44,547 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:43:44,547 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:43:44,548 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:43:44,548 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:43:44,549 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:43:44,549 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:43:44,550 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:43:44,550 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:43:44,551 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:43:44,551 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:43:44,551 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:43:44,552 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:43:44,552 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:43:44,553 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:43:44,553 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:43:44,554 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:43:44,554 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:43:44,554 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:43:44,555 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:43:44,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:43:44,555 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:43:44,555 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:43:44,556 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:43:44,556 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:43:44,556 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:43:44,556 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_0f8d498b-d624-4e07-9a03-c5a1ec00bc4f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d498b-d624-4e07-9a03-c5a1ec00bc4f/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef62179d17d90afe74c7b4fe8189ca3bb011e55daf3a169b42e4b3589691fc53 [2023-11-29 05:43:44,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:43:44,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:43:44,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:43:44,796 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:43:44,796 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:43:44,797 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d498b-d624-4e07-9a03-c5a1ec00bc4f/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/weaver/chl-time-trans.wvr.c [2023-11-29 05:43:47,680 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:43:47,836 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:43:47,836 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d498b-d624-4e07-9a03-c5a1ec00bc4f/sv-benchmarks/c/weaver/chl-time-trans.wvr.c [2023-11-29 05:43:47,843 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d498b-d624-4e07-9a03-c5a1ec00bc4f/bin/uautomizer-verify-BQ2R08f2Ya/data/9a24ceb83/8f12ec88b2cf4d239641d74f406c1555/FLAGac264cdd5 [2023-11-29 05:43:47,855 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d498b-d624-4e07-9a03-c5a1ec00bc4f/bin/uautomizer-verify-BQ2R08f2Ya/data/9a24ceb83/8f12ec88b2cf4d239641d74f406c1555 [2023-11-29 05:43:47,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:43:47,862 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:43:47,864 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:43:47,864 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:43:47,869 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:43:47,870 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:43:47" (1/1) ... [2023-11-29 05:43:47,871 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45426e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:47, skipping insertion in model container [2023-11-29 05:43:47,871 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:43:47" (1/1) ... [2023-11-29 05:43:47,895 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:43:48,070 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_0f8d498b-d624-4e07-9a03-c5a1ec00bc4f/sv-benchmarks/c/weaver/chl-time-trans.wvr.c[2875,2888] [2023-11-29 05:43:48,078 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:43:48,089 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:43:48,113 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_0f8d498b-d624-4e07-9a03-c5a1ec00bc4f/sv-benchmarks/c/weaver/chl-time-trans.wvr.c[2875,2888] [2023-11-29 05:43:48,115 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:43:48,124 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:43:48,124 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:43:48,132 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:43:48,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:48 WrapperNode [2023-11-29 05:43:48,133 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:43:48,134 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:43:48,134 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:43:48,134 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:43:48,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:48" (1/1) ... [2023-11-29 05:43:48,151 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:48" (1/1) ... [2023-11-29 05:43:48,180 INFO L138 Inliner]: procedures = 23, calls = 39, calls flagged for inlining = 11, calls inlined = 21, statements flattened = 225 [2023-11-29 05:43:48,180 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:43:48,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:43:48,181 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:43:48,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:43:48,189 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:48" (1/1) ... [2023-11-29 05:43:48,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:48" (1/1) ... [2023-11-29 05:43:48,192 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:48" (1/1) ... [2023-11-29 05:43:48,208 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2023-11-29 05:43:48,208 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:48" (1/1) ... [2023-11-29 05:43:48,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:48" (1/1) ... [2023-11-29 05:43:48,217 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:48" (1/1) ... [2023-11-29 05:43:48,219 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:48" (1/1) ... [2023-11-29 05:43:48,220 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:48" (1/1) ... [2023-11-29 05:43:48,222 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:48" (1/1) ... [2023-11-29 05:43:48,225 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:43:48,225 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:43:48,226 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:43:48,226 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:43:48,226 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:48" (1/1) ... [2023-11-29 05:43:48,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:43:48,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d498b-d624-4e07-9a03-c5a1ec00bc4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:43:48,257 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d498b-d624-4e07-9a03-c5a1ec00bc4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:43:48,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d498b-d624-4e07-9a03-c5a1ec00bc4f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:43:48,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:43:48,293 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-29 05:43:48,293 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-29 05:43:48,293 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-29 05:43:48,293 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-29 05:43:48,293 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-29 05:43:48,293 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-29 05:43:48,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:43:48,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 05:43:48,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 05:43:48,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 05:43:48,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 05:43:48,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 05:43:48,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 05:43:48,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 05:43:48,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 05:43:48,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 05:43:48,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 05:43:48,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:43:48,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:43:48,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 05:43:48,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 05:43:48,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 05:43:48,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 05:43:48,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:43:48,298 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 05:43:48,425 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:43:48,428 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:43:48,788 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:43:49,244 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:43:49,245 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 05:43:49,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:43:49 BoogieIcfgContainer [2023-11-29 05:43:49,245 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:43:49,248 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:43:49,248 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:43:49,251 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:43:49,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:43:47" (1/3) ... [2023-11-29 05:43:49,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9d4a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:43:49, skipping insertion in model container [2023-11-29 05:43:49,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:48" (2/3) ... [2023-11-29 05:43:49,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9d4a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:43:49, skipping insertion in model container [2023-11-29 05:43:49,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:43:49" (3/3) ... [2023-11-29 05:43:49,254 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-time-trans.wvr.c [2023-11-29 05:43:49,263 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 05:43:49,273 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:43:49,273 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 05:43:49,273 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 05:43:49,337 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-29 05:43:49,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 27 transitions, 75 flow [2023-11-29 05:43:49,410 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2023-11-29 05:43:49,411 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-29 05:43:49,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 24 events. 0/24 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-11-29 05:43:49,413 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 27 transitions, 75 flow [2023-11-29 05:43:49,416 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 23 transitions, 64 flow [2023-11-29 05:43:49,427 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:43:49,434 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;@4c9c44ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:43:49,434 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-29 05:43:49,447 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 05:43:49,447 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2023-11-29 05:43:49,447 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-29 05:43:49,448 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:43:49,448 INFO L208 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] [2023-11-29 05:43:49,449 INFO L420 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)] === [2023-11-29 05:43:49,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:43:49,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1930434512, now seen corresponding path program 1 times [2023-11-29 05:43:49,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:43:49,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984623422] [2023-11-29 05:43:49,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:43:49,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:43:49,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:50,436 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 05:43:50,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:43:50,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984623422] [2023-11-29 05:43:50,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984623422] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:43:50,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:43:50,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:43:50,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620574405] [2023-11-29 05:43:50,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:43:50,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:43:50,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:43:50,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:43:50,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:43:50,483 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2023-11-29 05:43:50,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 64 flow. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 05:43:50,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:43:50,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2023-11-29 05:43:50,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:43:50,892 INFO L124 PetriNetUnfolderBase]: 202/385 cut-off events. [2023-11-29 05:43:50,892 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2023-11-29 05:43:50,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 817 conditions, 385 events. 202/385 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1540 event pairs, 48 based on Foata normal form. 1/383 useless extension candidates. Maximal degree in co-relation 575. Up to 128 conditions per place. [2023-11-29 05:43:50,900 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 36 selfloop transitions, 2 changer transitions 10/52 dead transitions. [2023-11-29 05:43:50,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 52 transitions, 242 flow [2023-11-29 05:43:50,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:43:50,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 05:43:50,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 84 transitions. [2023-11-29 05:43:50,912 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6222222222222222 [2023-11-29 05:43:50,913 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 84 transitions. [2023-11-29 05:43:50,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 84 transitions. [2023-11-29 05:43:50,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:43:50,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 84 transitions. [2023-11-29 05:43:50,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 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 05:43:50,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 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 05:43:50,923 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 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 05:43:50,925 INFO L175 Difference]: Start difference. First operand has 33 places, 23 transitions, 64 flow. Second operand 5 states and 84 transitions. [2023-11-29 05:43:50,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 52 transitions, 242 flow [2023-11-29 05:43:50,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 52 transitions, 214 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-29 05:43:50,932 INFO L231 Difference]: Finished difference. Result has 34 places, 24 transitions, 67 flow [2023-11-29 05:43:50,934 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=67, PETRI_PLACES=34, PETRI_TRANSITIONS=24} [2023-11-29 05:43:50,937 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 1 predicate places. [2023-11-29 05:43:50,937 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 24 transitions, 67 flow [2023-11-29 05:43:50,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 05:43:50,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:43:50,938 INFO L208 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] [2023-11-29 05:43:50,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:43:50,938 INFO L420 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)] === [2023-11-29 05:43:50,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:43:50,939 INFO L85 PathProgramCache]: Analyzing trace with hash 429915562, now seen corresponding path program 2 times [2023-11-29 05:43:50,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:43:50,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973768140] [2023-11-29 05:43:50,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:43:50,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:43:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:51,508 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 05:43:51,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:43:51,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973768140] [2023-11-29 05:43:51,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973768140] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:43:51,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:43:51,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:43:51,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486315861] [2023-11-29 05:43:51,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:43:51,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:43:51,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:43:51,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:43:51,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:43:51,513 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2023-11-29 05:43:51,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 67 flow. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 05:43:51,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:43:51,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2023-11-29 05:43:51,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:43:51,823 INFO L124 PetriNetUnfolderBase]: 222/422 cut-off events. [2023-11-29 05:43:51,823 INFO L125 PetriNetUnfolderBase]: For 198/198 co-relation queries the response was YES. [2023-11-29 05:43:51,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 975 conditions, 422 events. 222/422 cut-off events. For 198/198 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1823 event pairs, 24 based on Foata normal form. 1/421 useless extension candidates. Maximal degree in co-relation 961. Up to 174 conditions per place. [2023-11-29 05:43:51,828 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 36 selfloop transitions, 2 changer transitions 14/56 dead transitions. [2023-11-29 05:43:51,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 56 transitions, 258 flow [2023-11-29 05:43:51,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:43:51,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 05:43:51,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 86 transitions. [2023-11-29 05:43:51,831 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6370370370370371 [2023-11-29 05:43:51,831 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 86 transitions. [2023-11-29 05:43:51,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 86 transitions. [2023-11-29 05:43:51,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:43:51,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 86 transitions. [2023-11-29 05:43:51,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 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 05:43:51,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 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 05:43:51,834 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 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 05:43:51,834 INFO L175 Difference]: Start difference. First operand has 34 places, 24 transitions, 67 flow. Second operand 5 states and 86 transitions. [2023-11-29 05:43:51,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 56 transitions, 258 flow [2023-11-29 05:43:51,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 56 transitions, 251 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-11-29 05:43:51,838 INFO L231 Difference]: Finished difference. Result has 38 places, 24 transitions, 77 flow [2023-11-29 05:43:51,838 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=77, PETRI_PLACES=38, PETRI_TRANSITIONS=24} [2023-11-29 05:43:51,839 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places. [2023-11-29 05:43:51,839 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 24 transitions, 77 flow [2023-11-29 05:43:51,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 05:43:51,839 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:43:51,839 INFO L208 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] [2023-11-29 05:43:51,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 05:43:51,840 INFO L420 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)] === [2023-11-29 05:43:51,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:43:51,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1156821912, now seen corresponding path program 3 times [2023-11-29 05:43:51,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:43:51,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656686034] [2023-11-29 05:43:51,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:43:51,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:43:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:52,325 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 05:43:52,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:43:52,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656686034] [2023-11-29 05:43:52,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656686034] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:43:52,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:43:52,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:43:52,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140035787] [2023-11-29 05:43:52,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:43:52,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:43:52,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:43:52,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:43:52,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:43:52,328 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2023-11-29 05:43:52,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 24 transitions, 77 flow. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 05:43:52,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:43:52,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2023-11-29 05:43:52,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:43:52,657 INFO L124 PetriNetUnfolderBase]: 176/348 cut-off events. [2023-11-29 05:43:52,657 INFO L125 PetriNetUnfolderBase]: For 347/347 co-relation queries the response was YES. [2023-11-29 05:43:52,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 871 conditions, 348 events. 176/348 cut-off events. For 347/347 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1364 event pairs, 38 based on Foata normal form. 1/347 useless extension candidates. Maximal degree in co-relation 855. Up to 126 conditions per place. [2023-11-29 05:43:52,662 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 36 selfloop transitions, 3 changer transitions 10/53 dead transitions. [2023-11-29 05:43:52,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 53 transitions, 257 flow [2023-11-29 05:43:52,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:43:52,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 05:43:52,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 84 transitions. [2023-11-29 05:43:52,664 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6222222222222222 [2023-11-29 05:43:52,664 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 84 transitions. [2023-11-29 05:43:52,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 84 transitions. [2023-11-29 05:43:52,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:43:52,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 84 transitions. [2023-11-29 05:43:52,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 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 05:43:52,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 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 05:43:52,666 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 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 05:43:52,666 INFO L175 Difference]: Start difference. First operand has 38 places, 24 transitions, 77 flow. Second operand 5 states and 84 transitions. [2023-11-29 05:43:52,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 53 transitions, 257 flow [2023-11-29 05:43:52,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 53 transitions, 238 flow, removed 7 selfloop flow, removed 4 redundant places. [2023-11-29 05:43:52,670 INFO L231 Difference]: Finished difference. Result has 40 places, 25 transitions, 88 flow [2023-11-29 05:43:52,670 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=88, PETRI_PLACES=40, PETRI_TRANSITIONS=25} [2023-11-29 05:43:52,671 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 7 predicate places. [2023-11-29 05:43:52,671 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 25 transitions, 88 flow [2023-11-29 05:43:52,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 05:43:52,672 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:43:52,672 INFO L208 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] [2023-11-29 05:43:52,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 05:43:52,672 INFO L420 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)] === [2023-11-29 05:43:52,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:43:52,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1250435144, now seen corresponding path program 4 times [2023-11-29 05:43:52,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:43:52,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900223217] [2023-11-29 05:43:52,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:43:52,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:43:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:53,128 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 05:43:53,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:43:53,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900223217] [2023-11-29 05:43:53,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900223217] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:43:53,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:43:53,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:43:53,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079684012] [2023-11-29 05:43:53,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:43:53,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:43:53,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:43:53,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:43:53,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:43:53,131 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2023-11-29 05:43:53,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 25 transitions, 88 flow. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 05:43:53,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:43:53,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2023-11-29 05:43:53,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:43:53,433 INFO L124 PetriNetUnfolderBase]: 186/368 cut-off events. [2023-11-29 05:43:53,434 INFO L125 PetriNetUnfolderBase]: For 410/410 co-relation queries the response was YES. [2023-11-29 05:43:53,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 991 conditions, 368 events. 186/368 cut-off events. For 410/410 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1501 event pairs, 32 based on Foata normal form. 1/367 useless extension candidates. Maximal degree in co-relation 975. Up to 158 conditions per place. [2023-11-29 05:43:53,437 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 34 selfloop transitions, 2 changer transitions 14/54 dead transitions. [2023-11-29 05:43:53,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 54 transitions, 275 flow [2023-11-29 05:43:53,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:43:53,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 05:43:53,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 84 transitions. [2023-11-29 05:43:53,439 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6222222222222222 [2023-11-29 05:43:53,439 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 84 transitions. [2023-11-29 05:43:53,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 84 transitions. [2023-11-29 05:43:53,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:43:53,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 84 transitions. [2023-11-29 05:43:53,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 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 05:43:53,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 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 05:43:53,441 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 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 05:43:53,441 INFO L175 Difference]: Start difference. First operand has 40 places, 25 transitions, 88 flow. Second operand 5 states and 84 transitions. [2023-11-29 05:43:53,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 54 transitions, 275 flow [2023-11-29 05:43:53,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 54 transitions, 268 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-11-29 05:43:53,445 INFO L231 Difference]: Finished difference. Result has 44 places, 25 transitions, 97 flow [2023-11-29 05:43:53,445 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=97, PETRI_PLACES=44, PETRI_TRANSITIONS=25} [2023-11-29 05:43:53,446 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 11 predicate places. [2023-11-29 05:43:53,446 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 25 transitions, 97 flow [2023-11-29 05:43:53,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 05:43:53,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:43:53,447 INFO L208 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] [2023-11-29 05:43:53,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 05:43:53,447 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 05:43:53,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:43:53,448 INFO L85 PathProgramCache]: Analyzing trace with hash 177231796, now seen corresponding path program 5 times [2023-11-29 05:43:53,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:43:53,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128597037] [2023-11-29 05:43:53,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:43:53,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:43:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:53,790 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 05:43:53,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:43:53,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128597037] [2023-11-29 05:43:53,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128597037] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:43:53,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:43:53,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:43:53,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058510706] [2023-11-29 05:43:53,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:43:53,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:43:53,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:43:53,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:43:53,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:43:53,794 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2023-11-29 05:43:53,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 25 transitions, 97 flow. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 05:43:53,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:43:53,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2023-11-29 05:43:53,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:43:54,046 INFO L124 PetriNetUnfolderBase]: 128/261 cut-off events. [2023-11-29 05:43:54,047 INFO L125 PetriNetUnfolderBase]: For 497/497 co-relation queries the response was YES. [2023-11-29 05:43:54,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 261 events. 128/261 cut-off events. For 497/497 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 941 event pairs, 22 based on Foata normal form. 1/260 useless extension candidates. Maximal degree in co-relation 739. Up to 82 conditions per place. [2023-11-29 05:43:54,049 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 23 selfloop transitions, 1 changer transitions 23/51 dead transitions. [2023-11-29 05:43:54,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 51 transitions, 258 flow [2023-11-29 05:43:54,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:43:54,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 05:43:54,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 82 transitions. [2023-11-29 05:43:54,051 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6074074074074074 [2023-11-29 05:43:54,051 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 82 transitions. [2023-11-29 05:43:54,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 82 transitions. [2023-11-29 05:43:54,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:43:54,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 82 transitions. [2023-11-29 05:43:54,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 05:43:54,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 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 05:43:54,053 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 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 05:43:54,053 INFO L175 Difference]: Start difference. First operand has 44 places, 25 transitions, 97 flow. Second operand 5 states and 82 transitions. [2023-11-29 05:43:54,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 51 transitions, 258 flow [2023-11-29 05:43:54,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 51 transitions, 246 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-11-29 05:43:54,056 INFO L231 Difference]: Finished difference. Result has 45 places, 23 transitions, 77 flow [2023-11-29 05:43:54,056 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=77, PETRI_PLACES=45, PETRI_TRANSITIONS=23} [2023-11-29 05:43:54,057 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 12 predicate places. [2023-11-29 05:43:54,057 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 23 transitions, 77 flow [2023-11-29 05:43:54,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 05:43:54,058 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:43:54,058 INFO L208 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] [2023-11-29 05:43:54,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 05:43:54,058 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 05:43:54,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:43:54,059 INFO L85 PathProgramCache]: Analyzing trace with hash 554748860, now seen corresponding path program 6 times [2023-11-29 05:43:54,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:43:54,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905975407] [2023-11-29 05:43:54,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:43:54,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:43:54,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:54,469 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 05:43:54,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:43:54,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905975407] [2023-11-29 05:43:54,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905975407] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:43:54,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:43:54,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:43:54,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988630290] [2023-11-29 05:43:54,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:43:54,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:43:54,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:43:54,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:43:54,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:43:54,472 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2023-11-29 05:43:54,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 23 transitions, 77 flow. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 05:43:54,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:43:54,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2023-11-29 05:43:54,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:43:54,641 INFO L124 PetriNetUnfolderBase]: 60/132 cut-off events. [2023-11-29 05:43:54,641 INFO L125 PetriNetUnfolderBase]: For 214/214 co-relation queries the response was YES. [2023-11-29 05:43:54,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 132 events. 60/132 cut-off events. For 214/214 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 347 event pairs, 10 based on Foata normal form. 1/132 useless extension candidates. Maximal degree in co-relation 373. Up to 67 conditions per place. [2023-11-29 05:43:54,642 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 0 selfloop transitions, 0 changer transitions 33/33 dead transitions. [2023-11-29 05:43:54,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 33 transitions, 163 flow [2023-11-29 05:43:54,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:43:54,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 05:43:54,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 66 transitions. [2023-11-29 05:43:54,643 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4888888888888889 [2023-11-29 05:43:54,644 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 66 transitions. [2023-11-29 05:43:54,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 66 transitions. [2023-11-29 05:43:54,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:43:54,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 66 transitions. [2023-11-29 05:43:54,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 05:43:54,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 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 05:43:54,645 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 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 05:43:54,645 INFO L175 Difference]: Start difference. First operand has 45 places, 23 transitions, 77 flow. Second operand 5 states and 66 transitions. [2023-11-29 05:43:54,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 33 transitions, 163 flow [2023-11-29 05:43:54,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 33 transitions, 149 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-11-29 05:43:54,647 INFO L231 Difference]: Finished difference. Result has 38 places, 0 transitions, 0 flow [2023-11-29 05:43:54,647 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=38, PETRI_TRANSITIONS=0} [2023-11-29 05:43:54,648 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places. [2023-11-29 05:43:54,648 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 0 transitions, 0 flow [2023-11-29 05:43:54,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 05:43:54,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-11-29 05:43:54,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-11-29 05:43:54,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-29 05:43:54,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-11-29 05:43:54,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 05:43:54,652 INFO L445 BasicCegarLoop]: Path program histogram: [6] [2023-11-29 05:43:54,655 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 05:43:54,655 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 05:43:54,661 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 05:43:54 BasicIcfg [2023-11-29 05:43:54,661 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 05:43:54,661 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:43:54,661 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:43:54,661 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:43:54,662 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:43:49" (3/4) ... [2023-11-29 05:43:54,664 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 05:43:54,667 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-29 05:43:54,667 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-29 05:43:54,667 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-11-29 05:43:54,672 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 87 nodes and edges [2023-11-29 05:43:54,673 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-29 05:43:54,673 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 05:43:54,673 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-29 05:43:54,759 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d498b-d624-4e07-9a03-c5a1ec00bc4f/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 05:43:54,760 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d498b-d624-4e07-9a03-c5a1ec00bc4f/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 05:43:54,760 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:43:54,761 INFO L158 Benchmark]: Toolchain (without parser) took 6898.53ms. Allocated memory was 140.5MB in the beginning and 276.8MB in the end (delta: 136.3MB). Free memory was 102.6MB in the beginning and 191.2MB in the end (delta: -88.6MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2023-11-29 05:43:54,761 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory is still 53.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:43:54,761 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.66ms. Allocated memory is still 140.5MB. Free memory was 102.1MB in the beginning and 90.4MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 05:43:54,762 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.40ms. Allocated memory is still 140.5MB. Free memory was 90.4MB in the beginning and 87.9MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 05:43:54,762 INFO L158 Benchmark]: Boogie Preprocessor took 44.12ms. Allocated memory is still 140.5MB. Free memory was 87.9MB in the beginning and 85.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:43:54,763 INFO L158 Benchmark]: RCFGBuilder took 1019.85ms. Allocated memory was 140.5MB in the beginning and 190.8MB in the end (delta: 50.3MB). Free memory was 85.3MB in the beginning and 101.9MB in the end (delta: -16.6MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. [2023-11-29 05:43:54,763 INFO L158 Benchmark]: TraceAbstraction took 5413.13ms. Allocated memory was 190.8MB in the beginning and 276.8MB in the end (delta: 86.0MB). Free memory was 100.8MB in the beginning and 195.4MB in the end (delta: -94.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:43:54,763 INFO L158 Benchmark]: Witness Printer took 98.81ms. Allocated memory is still 276.8MB. Free memory was 195.4MB in the beginning and 191.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 05:43:54,765 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory is still 53.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.66ms. Allocated memory is still 140.5MB. Free memory was 102.1MB in the beginning and 90.4MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.40ms. Allocated memory is still 140.5MB. Free memory was 90.4MB in the beginning and 87.9MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.12ms. Allocated memory is still 140.5MB. Free memory was 87.9MB in the beginning and 85.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1019.85ms. Allocated memory was 140.5MB in the beginning and 190.8MB in the end (delta: 50.3MB). Free memory was 85.3MB in the beginning and 101.9MB in the end (delta: -16.6MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5413.13ms. Allocated memory was 190.8MB in the beginning and 276.8MB in the end (delta: 86.0MB). Free memory was 100.8MB in the beginning and 195.4MB in the end (delta: -94.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 98.81ms. Allocated memory is still 276.8MB. Free memory was 195.4MB in the beginning and 191.2MB 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: 93]: 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, 43 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: 5.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 149 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 149 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 684 IncrementalHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 684 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=4, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 2791 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 05:43:54,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d498b-d624-4e07-9a03-c5a1ec00bc4f/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