./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b 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_167b6254-b5bf-469a-964b-a1ae461d14f9/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167b6254-b5bf-469a-964b-a1ae461d14f9/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167b6254-b5bf-469a-964b-a1ae461d14f9/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167b6254-b5bf-469a-964b-a1ae461d14f9/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167b6254-b5bf-469a-964b-a1ae461d14f9/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167b6254-b5bf-469a-964b-a1ae461d14f9/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 eab672eda1edfc97284913525627300d4c299ae27e8726a3a4858e3cefa92c8f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:02:47,452 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:02:47,558 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167b6254-b5bf-469a-964b-a1ae461d14f9/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 23:02:47,567 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:02:47,568 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:02:47,610 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:02:47,610 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:02:47,611 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:02:47,612 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:02:47,617 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:02:47,619 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:02:47,619 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:02:47,619 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:02:47,621 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:02:47,621 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:02:47,621 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:02:47,622 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:02:47,622 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:02:47,623 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:02:47,623 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:02:47,624 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:02:47,624 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:02:47,626 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:02:47,626 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:02:47,627 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:02:47,627 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:02:47,628 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:02:47,628 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:02:47,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:02:47,629 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:02:47,631 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:02:47,631 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:02:47,631 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:02:47,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:02:47,632 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:02:47,632 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:02:47,632 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:02:47,633 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:02:47,633 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:02:47,633 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_167b6254-b5bf-469a-964b-a1ae461d14f9/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167b6254-b5bf-469a-964b-a1ae461d14f9/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eab672eda1edfc97284913525627300d4c299ae27e8726a3a4858e3cefa92c8f [2023-11-06 23:02:47,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:02:47,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:02:47,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:02:47,941 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:02:47,941 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:02:47,942 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167b6254-b5bf-469a-964b-a1ae461d14f9/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i [2023-11-06 23:02:51,108 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:02:51,380 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:02:51,380 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167b6254-b5bf-469a-964b-a1ae461d14f9/sv-benchmarks/c/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i [2023-11-06 23:02:51,396 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167b6254-b5bf-469a-964b-a1ae461d14f9/bin/uautomizer-verify-WvqO1wxjHP/data/8e4f3f5d2/7c3ca4af0c63497a8240d5029d9a0389/FLAGcd1cd2ce9 [2023-11-06 23:02:51,411 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167b6254-b5bf-469a-964b-a1ae461d14f9/bin/uautomizer-verify-WvqO1wxjHP/data/8e4f3f5d2/7c3ca4af0c63497a8240d5029d9a0389 [2023-11-06 23:02:51,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:02:51,416 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:02:51,417 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:02:51,417 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:02:51,423 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:02:51,424 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:02:51" (1/1) ... [2023-11-06 23:02:51,425 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75bfcc1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:51, skipping insertion in model container [2023-11-06 23:02:51,425 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:02:51" (1/1) ... [2023-11-06 23:02:51,494 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:02:51,694 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_167b6254-b5bf-469a-964b-a1ae461d14f9/sv-benchmarks/c/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i[1129,1142] [2023-11-06 23:02:51,905 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:02:51,921 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:02:51,935 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_167b6254-b5bf-469a-964b-a1ae461d14f9/sv-benchmarks/c/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i[1129,1142] [2023-11-06 23:02:51,970 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:02:52,010 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:02:52,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:52 WrapperNode [2023-11-06 23:02:52,011 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:02:52,012 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:02:52,013 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:02:52,013 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:02:52,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:52" (1/1) ... [2023-11-06 23:02:52,056 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:52" (1/1) ... [2023-11-06 23:02:52,087 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 52 [2023-11-06 23:02:52,088 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:02:52,088 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:02:52,089 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:02:52,089 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:02:52,098 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:52" (1/1) ... [2023-11-06 23:02:52,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:52" (1/1) ... [2023-11-06 23:02:52,107 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:52" (1/1) ... [2023-11-06 23:02:52,107 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:52" (1/1) ... [2023-11-06 23:02:52,119 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:52" (1/1) ... [2023-11-06 23:02:52,124 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:52" (1/1) ... [2023-11-06 23:02:52,131 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:52" (1/1) ... [2023-11-06 23:02:52,133 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:52" (1/1) ... [2023-11-06 23:02:52,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:02:52,143 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:02:52,143 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:02:52,144 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:02:52,145 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:52" (1/1) ... [2023-11-06 23:02:52,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:02:52,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167b6254-b5bf-469a-964b-a1ae461d14f9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:02:52,190 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167b6254-b5bf-469a-964b-a1ae461d14f9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:02:52,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167b6254-b5bf-469a-964b-a1ae461d14f9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:02:52,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:02:52,239 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 23:02:52,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:02:52,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:02:52,240 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 23:02:52,240 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 23:02:52,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:02:52,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:02:52,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:02:52,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:02:52,243 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 23:02:52,422 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:02:52,426 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:02:52,594 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:02:52,601 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:02:52,601 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 23:02:52,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:02:52 BoogieIcfgContainer [2023-11-06 23:02:52,629 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:02:52,632 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:02:52,632 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:02:52,635 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:02:52,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:02:51" (1/3) ... [2023-11-06 23:02:52,636 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1495b6a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:02:52, skipping insertion in model container [2023-11-06 23:02:52,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:52" (2/3) ... [2023-11-06 23:02:52,637 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1495b6a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:02:52, skipping insertion in model container [2023-11-06 23:02:52,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:02:52" (3/3) ... [2023-11-06 23:02:52,638 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i [2023-11-06 23:02:52,647 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 23:02:52,675 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:02:52,676 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 23:02:52,676 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 23:02:52,745 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 23:02:52,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 67 transitions, 138 flow [2023-11-06 23:02:52,831 INFO L124 PetriNetUnfolderBase]: 1/66 cut-off events. [2023-11-06 23:02:52,831 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:02:52,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 66 events. 1/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2023-11-06 23:02:52,836 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 67 transitions, 138 flow [2023-11-06 23:02:52,840 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 53 transitions, 109 flow [2023-11-06 23:02:52,843 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 23:02:52,852 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 53 transitions, 109 flow [2023-11-06 23:02:52,855 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 53 transitions, 109 flow [2023-11-06 23:02:52,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 53 transitions, 109 flow [2023-11-06 23:02:52,877 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events. [2023-11-06 23:02:52,877 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:02:52,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 53 events. 0/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-06 23:02:52,878 INFO L119 LiptonReduction]: Number of co-enabled transitions 300 [2023-11-06 23:02:55,633 INFO L134 LiptonReduction]: Checked pairs total: 882 [2023-11-06 23:02:55,634 INFO L136 LiptonReduction]: Total number of compositions: 40 [2023-11-06 23:02:55,650 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:02:55,658 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=LoopsAndPotentialCycles, 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;@1e22c44b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:02:55,658 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-06 23:02:55,663 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 23:02:55,664 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2023-11-06 23:02:55,664 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:02:55,664 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:02:55,665 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:02:55,666 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-06 23:02:55,673 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:02:55,673 INFO L85 PathProgramCache]: Analyzing trace with hash -356353582, now seen corresponding path program 1 times [2023-11-06 23:02:55,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:02:55,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711922623] [2023-11-06 23:02:55,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:02:55,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:02:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:56,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:02:56,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:02:56,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711922623] [2023-11-06 23:02:56,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711922623] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:02:56,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:02:56,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:02:56,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643783362] [2023-11-06 23:02:56,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:02:56,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:02:56,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:02:56,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:02:56,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:02:56,164 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 107 [2023-11-06 23:02:56,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 13 transitions, 29 flow. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2023-11-06 23:02:56,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:02:56,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 107 [2023-11-06 23:02:56,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:02:56,228 INFO L124 PetriNetUnfolderBase]: 12/51 cut-off events. [2023-11-06 23:02:56,228 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:02:56,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 51 events. 12/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 141 event pairs, 9 based on Foata normal form. 5/56 useless extension candidates. Maximal degree in co-relation 84. Up to 30 conditions per place. [2023-11-06 23:02:56,232 INFO L140 encePairwiseOnDemand]: 104/107 looper letters, 10 selfloop transitions, 2 changer transitions 2/17 dead transitions. [2023-11-06 23:02:56,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 17 transitions, 65 flow [2023-11-06 23:02:56,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:02:56,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:02:56,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 198 transitions. [2023-11-06 23:02:56,248 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.616822429906542 [2023-11-06 23:02:56,249 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 198 transitions. [2023-11-06 23:02:56,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 198 transitions. [2023-11-06 23:02:56,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:02:56,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 198 transitions. [2023-11-06 23:02:56,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2023-11-06 23:02:56,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2023-11-06 23:02:56,272 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2023-11-06 23:02:56,274 INFO L175 Difference]: Start difference. First operand has 17 places, 13 transitions, 29 flow. Second operand 3 states and 198 transitions. [2023-11-06 23:02:56,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 17 transitions, 65 flow [2023-11-06 23:02:56,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 17 transitions, 64 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 23:02:56,278 INFO L231 Difference]: Finished difference. Result has 19 places, 13 transitions, 36 flow [2023-11-06 23:02:56,280 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=36, PETRI_PLACES=19, PETRI_TRANSITIONS=13} [2023-11-06 23:02:56,285 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 2 predicate places. [2023-11-06 23:02:56,286 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 13 transitions, 36 flow [2023-11-06 23:02:56,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2023-11-06 23:02:56,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:02:56,287 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:02:56,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 23:02:56,288 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-06 23:02:56,288 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:02:56,288 INFO L85 PathProgramCache]: Analyzing trace with hash 273486204, now seen corresponding path program 1 times [2023-11-06 23:02:56,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:02:56,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508670284] [2023-11-06 23:02:56,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:02:56,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:02:56,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:56,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:02:56,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:02:56,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508670284] [2023-11-06 23:02:56,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508670284] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:02:56,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:02:56,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:02:56,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579803551] [2023-11-06 23:02:56,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:02:56,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:02:56,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:02:56,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:02:56,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:02:56,475 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 107 [2023-11-06 23:02:56,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 13 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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) [2023-11-06 23:02:56,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:02:56,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 107 [2023-11-06 23:02:56,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:02:56,517 INFO L124 PetriNetUnfolderBase]: 6/27 cut-off events. [2023-11-06 23:02:56,518 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-06 23:02:56,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 27 events. 6/27 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 29 event pairs, 1 based on Foata normal form. 4/31 useless extension candidates. Maximal degree in co-relation 54. Up to 13 conditions per place. [2023-11-06 23:02:56,519 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 9 selfloop transitions, 4 changer transitions 0/15 dead transitions. [2023-11-06 23:02:56,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 15 transitions, 68 flow [2023-11-06 23:02:56,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:02:56,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:02:56,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 183 transitions. [2023-11-06 23:02:56,525 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5700934579439252 [2023-11-06 23:02:56,527 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 183 transitions. [2023-11-06 23:02:56,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 183 transitions. [2023-11-06 23:02:56,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:02:56,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 183 transitions. [2023-11-06 23:02:56,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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) [2023-11-06 23:02:56,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2023-11-06 23:02:56,533 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2023-11-06 23:02:56,533 INFO L175 Difference]: Start difference. First operand has 19 places, 13 transitions, 36 flow. Second operand 3 states and 183 transitions. [2023-11-06 23:02:56,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 15 transitions, 68 flow [2023-11-06 23:02:56,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 15 transitions, 66 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 23:02:56,535 INFO L231 Difference]: Finished difference. Result has 20 places, 13 transitions, 42 flow [2023-11-06 23:02:56,538 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=42, PETRI_PLACES=20, PETRI_TRANSITIONS=13} [2023-11-06 23:02:56,539 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 3 predicate places. [2023-11-06 23:02:56,539 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 13 transitions, 42 flow [2023-11-06 23:02:56,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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) [2023-11-06 23:02:56,541 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:02:56,541 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:02:56,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 23:02:56,542 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-06 23:02:56,543 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:02:56,548 INFO L85 PathProgramCache]: Analyzing trace with hash 5265280, now seen corresponding path program 2 times [2023-11-06 23:02:56,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:02:56,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853845733] [2023-11-06 23:02:56,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:02:56,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:02:56,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:56,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:02:56,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:02:56,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853845733] [2023-11-06 23:02:56,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853845733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:02:56,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:02:56,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:02:56,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091167839] [2023-11-06 23:02:56,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:02:56,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:02:56,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:02:56,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:02:56,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:02:56,928 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2023-11-06 23:02:56,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 13 transitions, 42 flow. Second operand has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 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) [2023-11-06 23:02:56,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:02:56,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2023-11-06 23:02:56,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:02:56,957 INFO L124 PetriNetUnfolderBase]: 1/18 cut-off events. [2023-11-06 23:02:56,958 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 23:02:56,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 18 events. 1/18 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 6/24 useless extension candidates. Maximal degree in co-relation 39. Up to 11 conditions per place. [2023-11-06 23:02:56,958 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 5 selfloop transitions, 6 changer transitions 1/14 dead transitions. [2023-11-06 23:02:56,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 14 transitions, 70 flow [2023-11-06 23:02:56,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:02:56,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 23:02:56,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 243 transitions. [2023-11-06 23:02:56,961 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5677570093457944 [2023-11-06 23:02:56,961 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 243 transitions. [2023-11-06 23:02:56,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 243 transitions. [2023-11-06 23:02:56,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:02:56,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 243 transitions. [2023-11-06 23:02:56,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 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) [2023-11-06 23:02:56,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 107.0) internal successors, (535), 5 states have internal predecessors, (535), 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) [2023-11-06 23:02:56,965 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 107.0) internal successors, (535), 5 states have internal predecessors, (535), 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) [2023-11-06 23:02:56,965 INFO L175 Difference]: Start difference. First operand has 20 places, 13 transitions, 42 flow. Second operand 4 states and 243 transitions. [2023-11-06 23:02:56,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 14 transitions, 70 flow [2023-11-06 23:02:56,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 14 transitions, 65 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 23:02:56,967 INFO L231 Difference]: Finished difference. Result has 22 places, 13 transitions, 50 flow [2023-11-06 23:02:56,967 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=50, PETRI_PLACES=22, PETRI_TRANSITIONS=13} [2023-11-06 23:02:56,968 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 5 predicate places. [2023-11-06 23:02:56,968 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 13 transitions, 50 flow [2023-11-06 23:02:56,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 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) [2023-11-06 23:02:56,969 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:02:56,969 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:02:56,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 23:02:56,970 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-06 23:02:56,970 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:02:56,971 INFO L85 PathProgramCache]: Analyzing trace with hash 2072176521, now seen corresponding path program 1 times [2023-11-06 23:02:56,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:02:56,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503385860] [2023-11-06 23:02:56,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:02:56,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:02:56,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:57,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:02:57,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:02:57,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503385860] [2023-11-06 23:02:57,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503385860] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:02:57,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:02:57,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:02:57,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208669873] [2023-11-06 23:02:57,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:02:57,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:02:57,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:02:57,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:02:57,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:02:57,226 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 107 [2023-11-06 23:02:57,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 13 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 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) [2023-11-06 23:02:57,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:02:57,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 107 [2023-11-06 23:02:57,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:02:57,246 INFO L124 PetriNetUnfolderBase]: 1/12 cut-off events. [2023-11-06 23:02:57,247 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 23:02:57,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 12 events. 1/12 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 1/13 useless extension candidates. Maximal degree in co-relation 26. Up to 7 conditions per place. [2023-11-06 23:02:57,247 INFO L140 encePairwiseOnDemand]: 104/107 looper letters, 0 selfloop transitions, 0 changer transitions 10/10 dead transitions. [2023-11-06 23:02:57,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 10 transitions, 55 flow [2023-11-06 23:02:57,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:02:57,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 23:02:57,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 241 transitions. [2023-11-06 23:02:57,250 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5630841121495327 [2023-11-06 23:02:57,250 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 241 transitions. [2023-11-06 23:02:57,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 241 transitions. [2023-11-06 23:02:57,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:02:57,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 241 transitions. [2023-11-06 23:02:57,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 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) [2023-11-06 23:02:57,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 107.0) internal successors, (535), 5 states have internal predecessors, (535), 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) [2023-11-06 23:02:57,254 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 107.0) internal successors, (535), 5 states have internal predecessors, (535), 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) [2023-11-06 23:02:57,254 INFO L175 Difference]: Start difference. First operand has 22 places, 13 transitions, 50 flow. Second operand 4 states and 241 transitions. [2023-11-06 23:02:57,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 10 transitions, 55 flow [2023-11-06 23:02:57,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 10 transitions, 48 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 23:02:57,255 INFO L231 Difference]: Finished difference. Result has 18 places, 0 transitions, 0 flow [2023-11-06 23:02:57,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=29, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=18, PETRI_TRANSITIONS=0} [2023-11-06 23:02:57,256 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 1 predicate places. [2023-11-06 23:02:57,256 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 0 transitions, 0 flow [2023-11-06 23:02:57,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 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) [2023-11-06 23:02:57,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-11-06 23:02:57,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-11-06 23:02:57,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 23:02:57,261 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-11-06 23:02:57,264 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 23:02:57,264 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 23:02:57,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:02:57 BasicIcfg [2023-11-06 23:02:57,268 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 23:02:57,269 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 23:02:57,269 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 23:02:57,269 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 23:02:57,270 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:02:52" (3/4) ... [2023-11-06 23:02:57,272 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 23:02:57,276 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-06 23:02:57,280 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-06 23:02:57,281 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 23:02:57,281 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 23:02:57,281 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 23:02:57,329 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167b6254-b5bf-469a-964b-a1ae461d14f9/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 23:02:57,329 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167b6254-b5bf-469a-964b-a1ae461d14f9/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 23:02:57,330 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 23:02:57,330 INFO L158 Benchmark]: Toolchain (without parser) took 5914.86ms. Allocated memory was 132.1MB in the beginning and 178.3MB in the end (delta: 46.1MB). Free memory was 86.3MB in the beginning and 140.0MB in the end (delta: -53.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:02:57,331 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 132.1MB. Free memory was 103.4MB in the beginning and 103.2MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:02:57,331 INFO L158 Benchmark]: CACSL2BoogieTranslator took 594.63ms. Allocated memory is still 132.1MB. Free memory was 85.9MB in the beginning and 66.5MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-06 23:02:57,332 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.40ms. Allocated memory is still 132.1MB. Free memory was 66.5MB in the beginning and 64.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:02:57,332 INFO L158 Benchmark]: Boogie Preprocessor took 53.91ms. Allocated memory is still 132.1MB. Free memory was 64.5MB in the beginning and 63.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:02:57,333 INFO L158 Benchmark]: RCFGBuilder took 485.98ms. Allocated memory is still 132.1MB. Free memory was 63.3MB in the beginning and 101.9MB in the end (delta: -38.7MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2023-11-06 23:02:57,333 INFO L158 Benchmark]: TraceAbstraction took 4636.71ms. Allocated memory was 132.1MB in the beginning and 178.3MB in the end (delta: 46.1MB). Free memory was 101.3MB in the beginning and 143.1MB in the end (delta: -41.9MB). Peak memory consumption was 98.4MB. Max. memory is 16.1GB. [2023-11-06 23:02:57,334 INFO L158 Benchmark]: Witness Printer took 60.84ms. Allocated memory is still 178.3MB. Free memory was 143.1MB in the beginning and 140.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:02:57,336 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 132.1MB. Free memory was 103.4MB in the beginning and 103.2MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 594.63ms. Allocated memory is still 132.1MB. Free memory was 85.9MB in the beginning and 66.5MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.40ms. Allocated memory is still 132.1MB. Free memory was 66.5MB in the beginning and 64.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.91ms. Allocated memory is still 132.1MB. Free memory was 64.5MB in the beginning and 63.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 485.98ms. Allocated memory is still 132.1MB. Free memory was 63.3MB in the beginning and 101.9MB in the end (delta: -38.7MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4636.71ms. Allocated memory was 132.1MB in the beginning and 178.3MB in the end (delta: 46.1MB). Free memory was 101.3MB in the beginning and 143.1MB in the end (delta: -41.9MB). Peak memory consumption was 98.4MB. Max. memory is 16.1GB. * Witness Printer took 60.84ms. Allocated memory is still 178.3MB. Free memory was 143.1MB in the beginning and 140.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 57 PlacesBefore, 17 PlacesAfterwards, 53 TransitionsBefore, 13 TransitionsAfterwards, 300 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 40 TotalNumberOfCompositions, 882 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 351, independent: 235, independent conditional: 0, independent unconditional: 235, dependent: 116, dependent conditional: 0, dependent unconditional: 116, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 156, independent: 138, independent conditional: 0, independent unconditional: 138, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 351, independent: 97, independent conditional: 0, independent unconditional: 97, dependent: 98, dependent conditional: 0, dependent unconditional: 98, unknown: 156, unknown conditional: 0, unknown unconditional: 156] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 79 locations, 2 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: 4.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 160 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 209 IncrementalHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 2 mSDtfsCounter, 209 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=3, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 188 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 23:02:57,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_167b6254-b5bf-469a-964b-a1ae461d14f9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE