./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix023_power.opt_pso.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_ae55e3a9-f654-4347-bdfc-43648ce325c1/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae55e3a9-f654-4347-bdfc-43648ce325c1/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_ae55e3a9-f654-4347-bdfc-43648ce325c1/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae55e3a9-f654-4347-bdfc-43648ce325c1/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix023_power.opt_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae55e3a9-f654-4347-bdfc-43648ce325c1/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae55e3a9-f654-4347-bdfc-43648ce325c1/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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 28f58acc3eb15266c6a84eca373e682a200492b696916dc340e2c03025141f5c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:46:51,406 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:46:51,480 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae55e3a9-f654-4347-bdfc-43648ce325c1/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:46:51,486 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:46:51,486 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:46:51,514 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:46:51,515 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:46:51,515 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:46:51,516 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:46:51,517 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:46:51,518 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:46:51,518 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:46:51,519 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:46:51,519 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:46:51,520 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:46:51,520 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:46:51,521 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:46:51,521 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:46:51,522 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:46:51,522 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:46:51,523 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:46:51,524 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:46:51,525 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:46:51,525 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:46:51,525 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:46:51,526 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:46:51,526 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:46:51,527 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:46:51,527 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:46:51,527 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:46:51,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:46:51,528 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:46:51,529 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:46:51,529 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:46:51,529 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:46:51,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:46:51,530 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:46:51,530 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:46:51,532 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:46:51,533 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:46:51,533 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:46:51,539 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_ae55e3a9-f654-4347-bdfc-43648ce325c1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae55e3a9-f654-4347-bdfc-43648ce325c1/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 28f58acc3eb15266c6a84eca373e682a200492b696916dc340e2c03025141f5c [2023-11-06 22:46:51,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:46:51,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:46:51,879 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:46:51,880 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:46:51,881 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:46:51,882 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae55e3a9-f654-4347-bdfc-43648ce325c1/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-wmm/mix023_power.opt_pso.opt_rmo.opt.i [2023-11-06 22:46:55,086 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:46:55,395 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:46:55,396 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae55e3a9-f654-4347-bdfc-43648ce325c1/sv-benchmarks/c/pthread-wmm/mix023_power.opt_pso.opt_rmo.opt.i [2023-11-06 22:46:55,422 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae55e3a9-f654-4347-bdfc-43648ce325c1/bin/uautomizer-verify-WvqO1wxjHP/data/b54537d91/6d495a342fd64b0fa9b088d515e85442/FLAGa2d223844 [2023-11-06 22:46:55,435 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae55e3a9-f654-4347-bdfc-43648ce325c1/bin/uautomizer-verify-WvqO1wxjHP/data/b54537d91/6d495a342fd64b0fa9b088d515e85442 [2023-11-06 22:46:55,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:46:55,439 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:46:55,440 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:46:55,441 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:46:55,452 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:46:55,456 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:46:55" (1/1) ... [2023-11-06 22:46:55,457 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b46a05b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:55, skipping insertion in model container [2023-11-06 22:46:55,457 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:46:55" (1/1) ... [2023-11-06 22:46:55,538 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:46:55,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:46:55,926 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:46:56,034 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:46:56,091 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:46:56,091 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:46:56,098 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:46:56,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:56 WrapperNode [2023-11-06 22:46:56,099 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:46:56,101 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:46:56,101 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:46:56,102 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:46:56,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:56" (1/1) ... [2023-11-06 22:46:56,144 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:56" (1/1) ... [2023-11-06 22:46:56,194 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 152 [2023-11-06 22:46:56,196 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:46:56,196 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:46:56,197 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:46:56,197 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:46:56,205 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:56" (1/1) ... [2023-11-06 22:46:56,206 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:56" (1/1) ... [2023-11-06 22:46:56,222 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:56" (1/1) ... [2023-11-06 22:46:56,224 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:56" (1/1) ... [2023-11-06 22:46:56,233 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:56" (1/1) ... [2023-11-06 22:46:56,249 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:56" (1/1) ... [2023-11-06 22:46:56,251 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:56" (1/1) ... [2023-11-06 22:46:56,262 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:56" (1/1) ... [2023-11-06 22:46:56,266 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:46:56,267 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:46:56,267 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:46:56,267 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:46:56,275 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:56" (1/1) ... [2023-11-06 22:46:56,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:46:56,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae55e3a9-f654-4347-bdfc-43648ce325c1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:56,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae55e3a9-f654-4347-bdfc-43648ce325c1/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:56,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae55e3a9-f654-4347-bdfc-43648ce325c1/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:46:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:46:56,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:46:56,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:46:56,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:46:56,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:46:56,359 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-06 22:46:56,359 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-06 22:46:56,359 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-06 22:46:56,359 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-06 22:46:56,359 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-06 22:46:56,360 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-06 22:46:56,360 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-06 22:46:56,360 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-06 22:46:56,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:46:56,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:46:56,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:46:56,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:46:56,363 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 22:46:56,576 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:46:56,578 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:46:56,992 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:46:57,153 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:46:57,153 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:46:57,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:46:57 BoogieIcfgContainer [2023-11-06 22:46:57,156 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:46:57,158 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:46:57,158 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:46:57,161 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:46:57,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:46:55" (1/3) ... [2023-11-06 22:46:57,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@182f789a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:46:57, skipping insertion in model container [2023-11-06 22:46:57,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:56" (2/3) ... [2023-11-06 22:46:57,163 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@182f789a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:46:57, skipping insertion in model container [2023-11-06 22:46:57,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:46:57" (3/3) ... [2023-11-06 22:46:57,164 INFO L112 eAbstractionObserver]: Analyzing ICFG mix023_power.opt_pso.opt_rmo.opt.i [2023-11-06 22:46:57,175 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:46:57,185 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:46:57,185 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-06 22:46:57,185 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:46:57,253 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 22:46:57,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 154 places, 144 transitions, 304 flow [2023-11-06 22:46:57,358 INFO L124 PetriNetUnfolderBase]: 3/140 cut-off events. [2023-11-06 22:46:57,358 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:46:57,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 140 events. 3/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 104 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2023-11-06 22:46:57,370 INFO L82 GeneralOperation]: Start removeDead. Operand has 154 places, 144 transitions, 304 flow [2023-11-06 22:46:57,376 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 140 transitions, 292 flow [2023-11-06 22:46:57,380 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:46:57,393 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 140 transitions, 292 flow [2023-11-06 22:46:57,397 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 140 transitions, 292 flow [2023-11-06 22:46:57,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 140 transitions, 292 flow [2023-11-06 22:46:57,434 INFO L124 PetriNetUnfolderBase]: 3/140 cut-off events. [2023-11-06 22:46:57,435 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:46:57,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 140 events. 3/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 104 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2023-11-06 22:46:57,440 INFO L119 LiptonReduction]: Number of co-enabled transitions 4492 [2023-11-06 22:47:02,734 INFO L134 LiptonReduction]: Checked pairs total: 15880 [2023-11-06 22:47:02,734 INFO L136 LiptonReduction]: Total number of compositions: 121 [2023-11-06 22:47:02,750 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:47:02,758 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;@6ed0d0fc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:47:02,758 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-06 22:47:02,762 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:47:02,762 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-06 22:47:02,762 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:47:02,763 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:47:02,763 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:47:02,764 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-06 22:47:02,769 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:47:02,769 INFO L85 PathProgramCache]: Analyzing trace with hash 591676539, now seen corresponding path program 1 times [2023-11-06 22:47:02,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:47:02,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793941364] [2023-11-06 22:47:02,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:47:02,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:47:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:47:03,070 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 22:47:03,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:47:03,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793941364] [2023-11-06 22:47:03,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793941364] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:47:03,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:47:03,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:47:03,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267491797] [2023-11-06 22:47:03,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:47:03,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:47:03,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:47:03,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:47:03,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:47:03,144 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 265 [2023-11-06 22:47:03,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 36 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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 22:47:03,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:47:03,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 265 [2023-11-06 22:47:03,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:47:04,726 INFO L124 PetriNetUnfolderBase]: 6339/8742 cut-off events. [2023-11-06 22:47:04,727 INFO L125 PetriNetUnfolderBase]: For 107/107 co-relation queries the response was YES. [2023-11-06 22:47:04,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17586 conditions, 8742 events. 6339/8742 cut-off events. For 107/107 co-relation queries the response was YES. Maximal size of possible extension queue 437. Compared 46423 event pairs, 6339 based on Foata normal form. 0/6675 useless extension candidates. Maximal degree in co-relation 17574. Up to 8588 conditions per place. [2023-11-06 22:47:04,825 INFO L140 encePairwiseOnDemand]: 259/265 looper letters, 25 selfloop transitions, 1 changer transitions 0/31 dead transitions. [2023-11-06 22:47:04,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 31 transitions, 126 flow [2023-11-06 22:47:04,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:47:04,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:47:04,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 385 transitions. [2023-11-06 22:47:04,849 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48427672955974843 [2023-11-06 22:47:04,850 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 385 transitions. [2023-11-06 22:47:04,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 385 transitions. [2023-11-06 22:47:04,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:47:04,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 385 transitions. [2023-11-06 22:47:04,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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 22:47:04,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 265.0) internal successors, (1060), 4 states have internal predecessors, (1060), 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 22:47:04,871 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 265.0) internal successors, (1060), 4 states have internal predecessors, (1060), 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 22:47:04,873 INFO L175 Difference]: Start difference. First operand has 48 places, 36 transitions, 84 flow. Second operand 3 states and 385 transitions. [2023-11-06 22:47:04,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 31 transitions, 126 flow [2023-11-06 22:47:04,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 31 transitions, 122 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:47:04,882 INFO L231 Difference]: Finished difference. Result has 42 places, 31 transitions, 72 flow [2023-11-06 22:47:04,884 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2023-11-06 22:47:04,890 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -6 predicate places. [2023-11-06 22:47:04,891 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 72 flow [2023-11-06 22:47:04,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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 22:47:04,892 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:47:04,892 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:47:04,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:47:04,892 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-06 22:47:04,893 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:47:04,894 INFO L85 PathProgramCache]: Analyzing trace with hash 591676540, now seen corresponding path program 1 times [2023-11-06 22:47:04,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:47:04,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005722550] [2023-11-06 22:47:04,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:47:04,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:47:04,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:47:05,048 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 22:47:05,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:47:05,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005722550] [2023-11-06 22:47:05,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005722550] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:47:05,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:47:05,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:47:05,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876380783] [2023-11-06 22:47:05,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:47:05,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:47:05,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:47:05,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:47:05,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:47:05,063 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 265 [2023-11-06 22:47:05,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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 22:47:05,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:47:05,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 265 [2023-11-06 22:47:05,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:47:06,070 INFO L124 PetriNetUnfolderBase]: 4063/5740 cut-off events. [2023-11-06 22:47:06,071 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:47:06,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11606 conditions, 5740 events. 4063/5740 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 30005 event pairs, 1011 based on Foata normal form. 0/4750 useless extension candidates. Maximal degree in co-relation 11600. Up to 4849 conditions per place. [2023-11-06 22:47:06,137 INFO L140 encePairwiseOnDemand]: 256/265 looper letters, 41 selfloop transitions, 5 changer transitions 0/51 dead transitions. [2023-11-06 22:47:06,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 51 transitions, 210 flow [2023-11-06 22:47:06,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:47:06,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:47:06,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 404 transitions. [2023-11-06 22:47:06,140 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5081761006289308 [2023-11-06 22:47:06,141 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 404 transitions. [2023-11-06 22:47:06,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 404 transitions. [2023-11-06 22:47:06,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:47:06,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 404 transitions. [2023-11-06 22:47:06,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 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 22:47:06,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 265.0) internal successors, (1060), 4 states have internal predecessors, (1060), 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 22:47:06,151 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 265.0) internal successors, (1060), 4 states have internal predecessors, (1060), 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 22:47:06,151 INFO L175 Difference]: Start difference. First operand has 42 places, 31 transitions, 72 flow. Second operand 3 states and 404 transitions. [2023-11-06 22:47:06,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 51 transitions, 210 flow [2023-11-06 22:47:06,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 51 transitions, 209 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:47:06,156 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 110 flow [2023-11-06 22:47:06,161 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2023-11-06 22:47:06,162 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -4 predicate places. [2023-11-06 22:47:06,162 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 110 flow [2023-11-06 22:47:06,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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 22:47:06,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:47:06,163 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:47:06,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:47:06,164 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-06 22:47:06,165 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:47:06,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1084909860, now seen corresponding path program 1 times [2023-11-06 22:47:06,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:47:06,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969592042] [2023-11-06 22:47:06,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:47:06,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:47:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:47:06,375 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 22:47:06,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:47:06,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969592042] [2023-11-06 22:47:06,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969592042] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:47:06,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:47:06,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:47:06,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529690143] [2023-11-06 22:47:06,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:47:06,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:47:06,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:47:06,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:47:06,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:47:06,391 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 265 [2023-11-06 22:47:06,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 110 flow. Second operand has 4 states, 4 states have (on average 120.25) internal successors, (481), 4 states have internal predecessors, (481), 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 22:47:06,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:47:06,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 265 [2023-11-06 22:47:06,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:47:07,210 INFO L124 PetriNetUnfolderBase]: 2586/3713 cut-off events. [2023-11-06 22:47:07,210 INFO L125 PetriNetUnfolderBase]: For 344/344 co-relation queries the response was YES. [2023-11-06 22:47:07,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9068 conditions, 3713 events. 2586/3713 cut-off events. For 344/344 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 18324 event pairs, 613 based on Foata normal form. 0/3447 useless extension candidates. Maximal degree in co-relation 9060. Up to 1477 conditions per place. [2023-11-06 22:47:07,246 INFO L140 encePairwiseOnDemand]: 256/265 looper letters, 55 selfloop transitions, 9 changer transitions 0/69 dead transitions. [2023-11-06 22:47:07,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 69 transitions, 324 flow [2023-11-06 22:47:07,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:47:07,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:47:07,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 540 transitions. [2023-11-06 22:47:07,250 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5094339622641509 [2023-11-06 22:47:07,250 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 540 transitions. [2023-11-06 22:47:07,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 540 transitions. [2023-11-06 22:47:07,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:47:07,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 540 transitions. [2023-11-06 22:47:07,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 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 22:47:07,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 265.0) internal successors, (1325), 5 states have internal predecessors, (1325), 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 22:47:07,257 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 265.0) internal successors, (1325), 5 states have internal predecessors, (1325), 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 22:47:07,257 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 110 flow. Second operand 4 states and 540 transitions. [2023-11-06 22:47:07,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 69 transitions, 324 flow [2023-11-06 22:47:07,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 69 transitions, 319 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:47:07,268 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 163 flow [2023-11-06 22:47:07,269 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=163, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-11-06 22:47:07,270 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2023-11-06 22:47:07,270 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 163 flow [2023-11-06 22:47:07,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 120.25) internal successors, (481), 4 states have internal predecessors, (481), 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 22:47:07,271 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:47:07,271 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:47:07,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:47:07,277 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-06 22:47:07,277 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:47:07,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1148508946, now seen corresponding path program 1 times [2023-11-06 22:47:07,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:47:07,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459427982] [2023-11-06 22:47:07,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:47:07,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:47:07,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:47:07,487 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 22:47:07,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:47:07,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459427982] [2023-11-06 22:47:07,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459427982] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:47:07,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:47:07,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:47:07,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724877005] [2023-11-06 22:47:07,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:47:07,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:47:07,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:47:07,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:47:07,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:47:07,503 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 265 [2023-11-06 22:47:07,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 163 flow. Second operand has 5 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 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 22:47:07,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:47:07,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 265 [2023-11-06 22:47:07,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:47:08,244 INFO L124 PetriNetUnfolderBase]: 2307/3272 cut-off events. [2023-11-06 22:47:08,245 INFO L125 PetriNetUnfolderBase]: For 2166/2166 co-relation queries the response was YES. [2023-11-06 22:47:08,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8910 conditions, 3272 events. 2307/3272 cut-off events. For 2166/2166 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 15746 event pairs, 569 based on Foata normal form. 0/3192 useless extension candidates. Maximal degree in co-relation 8900. Up to 1345 conditions per place. [2023-11-06 22:47:08,272 INFO L140 encePairwiseOnDemand]: 256/265 looper letters, 63 selfloop transitions, 13 changer transitions 4/85 dead transitions. [2023-11-06 22:47:08,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 85 transitions, 443 flow [2023-11-06 22:47:08,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:47:08,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:47:08,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 674 transitions. [2023-11-06 22:47:08,276 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5086792452830189 [2023-11-06 22:47:08,276 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 674 transitions. [2023-11-06 22:47:08,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 674 transitions. [2023-11-06 22:47:08,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:47:08,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 674 transitions. [2023-11-06 22:47:08,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 134.8) internal successors, (674), 5 states have internal predecessors, (674), 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 22:47:08,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 265.0) internal successors, (1590), 6 states have internal predecessors, (1590), 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 22:47:08,284 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 265.0) internal successors, (1590), 6 states have internal predecessors, (1590), 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 22:47:08,285 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 163 flow. Second operand 5 states and 674 transitions. [2023-11-06 22:47:08,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 85 transitions, 443 flow [2023-11-06 22:47:08,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 85 transitions, 425 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-11-06 22:47:08,293 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 187 flow [2023-11-06 22:47:08,294 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=187, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2023-11-06 22:47:08,295 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 2 predicate places. [2023-11-06 22:47:08,296 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 187 flow [2023-11-06 22:47:08,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 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 22:47:08,297 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:47:08,297 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, 1] [2023-11-06 22:47:08,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:47:08,297 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-06 22:47:08,298 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:47:08,298 INFO L85 PathProgramCache]: Analyzing trace with hash 483308534, now seen corresponding path program 1 times [2023-11-06 22:47:08,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:47:08,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918426247] [2023-11-06 22:47:08,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:47:08,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:47:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:47:08,528 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 22:47:08,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:47:08,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918426247] [2023-11-06 22:47:08,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918426247] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:47:08,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:47:08,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:47:08,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292777099] [2023-11-06 22:47:08,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:47:08,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:47:08,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:47:08,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:47:08,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:47:08,547 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 265 [2023-11-06 22:47:08,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 187 flow. Second operand has 6 states, 6 states have (on average 121.16666666666667) internal successors, (727), 6 states have internal predecessors, (727), 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 22:47:08,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:47:08,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 265 [2023-11-06 22:47:08,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:47:09,261 INFO L124 PetriNetUnfolderBase]: 2280/3225 cut-off events. [2023-11-06 22:47:09,262 INFO L125 PetriNetUnfolderBase]: For 2700/2700 co-relation queries the response was YES. [2023-11-06 22:47:09,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9011 conditions, 3225 events. 2280/3225 cut-off events. For 2700/2700 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 15600 event pairs, 569 based on Foata normal form. 16/3177 useless extension candidates. Maximal degree in co-relation 9000. Up to 1345 conditions per place. [2023-11-06 22:47:09,273 INFO L140 encePairwiseOnDemand]: 256/265 looper letters, 0 selfloop transitions, 0 changer transitions 77/77 dead transitions. [2023-11-06 22:47:09,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 77 transitions, 395 flow [2023-11-06 22:47:09,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:47:09,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:47:09,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 784 transitions. [2023-11-06 22:47:09,278 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4930817610062893 [2023-11-06 22:47:09,279 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 784 transitions. [2023-11-06 22:47:09,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 784 transitions. [2023-11-06 22:47:09,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:47:09,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 784 transitions. [2023-11-06 22:47:09,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 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 22:47:09,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 265.0) internal successors, (1855), 7 states have internal predecessors, (1855), 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 22:47:09,288 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 265.0) internal successors, (1855), 7 states have internal predecessors, (1855), 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 22:47:09,289 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 187 flow. Second operand 6 states and 784 transitions. [2023-11-06 22:47:09,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 77 transitions, 395 flow [2023-11-06 22:47:09,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 77 transitions, 340 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-06 22:47:09,373 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2023-11-06 22:47:09,373 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2023-11-06 22:47:09,374 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-11-06 22:47:09,374 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2023-11-06 22:47:09,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.16666666666667) internal successors, (727), 6 states have internal predecessors, (727), 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 22:47:09,377 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-06 22:47:09,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-06 22:47:09,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-06 22:47:09,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-06 22:47:09,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-06 22:47:09,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-06 22:47:09,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-06 22:47:09,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-06 22:47:09,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-06 22:47:09,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-06 22:47:09,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-06 22:47:09,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-06 22:47:09,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-06 22:47:09,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-06 22:47:09,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-06 22:47:09,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-06 22:47:09,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-06 22:47:09,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-06 22:47:09,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-06 22:47:09,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-06 22:47:09,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:47:09,384 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-06 22:47:09,390 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:47:09,390 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:47:09,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:47:09 BasicIcfg [2023-11-06 22:47:09,394 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:47:09,395 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:47:09,395 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:47:09,395 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:47:09,396 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:46:57" (3/4) ... [2023-11-06 22:47:09,397 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:47:09,400 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-06 22:47:09,401 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-06 22:47:09,401 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-06 22:47:09,401 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-06 22:47:09,406 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-06 22:47:09,407 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-06 22:47:09,407 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:47:09,408 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:47:09,480 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae55e3a9-f654-4347-bdfc-43648ce325c1/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:47:09,480 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae55e3a9-f654-4347-bdfc-43648ce325c1/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:47:09,481 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:47:09,481 INFO L158 Benchmark]: Toolchain (without parser) took 14042.02ms. Allocated memory was 159.4MB in the beginning and 656.4MB in the end (delta: 497.0MB). Free memory was 112.6MB in the beginning and 426.6MB in the end (delta: -314.0MB). Peak memory consumption was 186.2MB. Max. memory is 16.1GB. [2023-11-06 22:47:09,482 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 68.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:47:09,482 INFO L158 Benchmark]: CACSL2BoogieTranslator took 659.21ms. Allocated memory is still 159.4MB. Free memory was 112.1MB in the beginning and 88.6MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-06 22:47:09,482 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.21ms. Allocated memory is still 159.4MB. Free memory was 88.6MB in the beginning and 86.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:47:09,483 INFO L158 Benchmark]: Boogie Preprocessor took 70.07ms. Allocated memory is still 159.4MB. Free memory was 86.1MB in the beginning and 84.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:47:09,483 INFO L158 Benchmark]: RCFGBuilder took 888.59ms. Allocated memory is still 159.4MB. Free memory was 84.0MB in the beginning and 101.5MB in the end (delta: -17.6MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2023-11-06 22:47:09,484 INFO L158 Benchmark]: TraceAbstraction took 12236.17ms. Allocated memory was 159.4MB in the beginning and 656.4MB in the end (delta: 497.0MB). Free memory was 100.8MB in the beginning and 429.7MB in the end (delta: -329.0MB). Peak memory consumption was 270.2MB. Max. memory is 16.1GB. [2023-11-06 22:47:09,484 INFO L158 Benchmark]: Witness Printer took 86.03ms. Allocated memory is still 656.4MB. Free memory was 429.7MB in the beginning and 426.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:47:09,486 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 68.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 659.21ms. Allocated memory is still 159.4MB. Free memory was 112.1MB in the beginning and 88.6MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.21ms. Allocated memory is still 159.4MB. Free memory was 88.6MB in the beginning and 86.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.07ms. Allocated memory is still 159.4MB. Free memory was 86.1MB in the beginning and 84.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 888.59ms. Allocated memory is still 159.4MB. Free memory was 84.0MB in the beginning and 101.5MB in the end (delta: -17.6MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * TraceAbstraction took 12236.17ms. Allocated memory was 159.4MB in the beginning and 656.4MB in the end (delta: 497.0MB). Free memory was 100.8MB in the beginning and 429.7MB in the end (delta: -329.0MB). Peak memory consumption was 270.2MB. Max. memory is 16.1GB. * Witness Printer took 86.03ms. Allocated memory is still 656.4MB. Free memory was 429.7MB in the beginning and 426.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.3s, 150 PlacesBefore, 48 PlacesAfterwards, 140 TransitionsBefore, 36 TransitionsAfterwards, 4492 CoEnabledTransitionPairs, 7 FixpointIterations, 42 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 121 TotalNumberOfCompositions, 15880 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6057, independent: 5697, independent conditional: 0, independent unconditional: 5697, dependent: 360, dependent conditional: 0, dependent unconditional: 360, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2401, independent: 2338, independent conditional: 0, independent unconditional: 2338, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6057, independent: 3359, independent conditional: 0, independent unconditional: 3359, dependent: 297, dependent conditional: 0, dependent unconditional: 297, unknown: 2401, unknown conditional: 0, unknown unconditional: 2401] , Statistics on independence cache: Total cache size (in pairs): 222, Positive cache size: 194, Positive conditional cache size: 0, Positive unconditional cache size: 194, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 821]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 821]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 844]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 844]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 186 locations, 20 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: 12.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 211 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 186 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 331 IncrementalHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 6 mSDtfsCounter, 331 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=187occurred in iteration=4, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 171 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:47:09,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae55e3a9-f654-4347-bdfc-43648ce325c1/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