./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe014_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb52165d-00e6-4e84-9072-19807f225b83/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb52165d-00e6-4e84-9072-19807f225b83/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_eb52165d-00e6-4e84-9072-19807f225b83/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb52165d-00e6-4e84-9072-19807f225b83/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe014_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb52165d-00e6-4e84-9072-19807f225b83/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_eb52165d-00e6-4e84-9072-19807f225b83/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 bb32390c6e08fa980f308e05dcc5f75aadd246c70ded8fbe4d875fa3ae4239fa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:58:33,359 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:58:33,479 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb52165d-00e6-4e84-9072-19807f225b83/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 21:58:33,486 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:58:33,487 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:58:33,517 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:58:33,518 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:58:33,518 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:58:33,519 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:58:33,520 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:58:33,521 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:58:33,521 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:58:33,522 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:58:33,523 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:58:33,523 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:58:33,524 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:58:33,525 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:58:33,525 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:58:33,526 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:58:33,526 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:58:33,527 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:58:33,527 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:58:33,528 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 21:58:33,528 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:58:33,529 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:58:33,529 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:58:33,529 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:58:33,530 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:58:33,530 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:58:33,531 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:58:33,531 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:58:33,532 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:58:33,532 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:58:33,533 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:58:33,533 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:58:33,534 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:58:33,534 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:58:33,534 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:58:33,535 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:58:33,535 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:58:33,535 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:58:33,536 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_eb52165d-00e6-4e84-9072-19807f225b83/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb52165d-00e6-4e84-9072-19807f225b83/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb32390c6e08fa980f308e05dcc5f75aadd246c70ded8fbe4d875fa3ae4239fa [2023-11-06 21:58:33,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:58:33,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:58:33,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:58:33,917 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:58:33,918 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:58:33,919 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb52165d-00e6-4e84-9072-19807f225b83/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-wmm/safe014_rmo.oepc.i [2023-11-06 21:58:37,335 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:58:37,648 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:58:37,649 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb52165d-00e6-4e84-9072-19807f225b83/sv-benchmarks/c/pthread-wmm/safe014_rmo.oepc.i [2023-11-06 21:58:37,674 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb52165d-00e6-4e84-9072-19807f225b83/bin/uautomizer-verify-WvqO1wxjHP/data/5cc6e58ae/bcb9ea3d36d240cbae9b2f022cb7abd5/FLAG17a753dc5 [2023-11-06 21:58:37,693 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb52165d-00e6-4e84-9072-19807f225b83/bin/uautomizer-verify-WvqO1wxjHP/data/5cc6e58ae/bcb9ea3d36d240cbae9b2f022cb7abd5 [2023-11-06 21:58:37,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:58:37,698 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:58:37,700 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:58:37,701 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:58:37,715 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:58:37,719 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:37" (1/1) ... [2023-11-06 21:58:37,720 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad2474b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:37, skipping insertion in model container [2023-11-06 21:58:37,721 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:37" (1/1) ... [2023-11-06 21:58:37,784 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:58:38,262 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:58:38,281 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:58:38,354 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:58:38,396 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:58:38,396 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:58:38,405 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:58:38,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:38 WrapperNode [2023-11-06 21:58:38,406 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:58:38,407 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:58:38,407 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:58:38,408 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:58:38,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:38" (1/1) ... [2023-11-06 21:58:38,436 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:38" (1/1) ... [2023-11-06 21:58:38,469 INFO L138 Inliner]: procedures = 176, calls = 68, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 139 [2023-11-06 21:58:38,469 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:58:38,470 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:58:38,470 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:58:38,471 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:58:38,487 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:38" (1/1) ... [2023-11-06 21:58:38,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:38" (1/1) ... [2023-11-06 21:58:38,492 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:38" (1/1) ... [2023-11-06 21:58:38,492 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:38" (1/1) ... [2023-11-06 21:58:38,512 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:38" (1/1) ... [2023-11-06 21:58:38,519 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:38" (1/1) ... [2023-11-06 21:58:38,527 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:38" (1/1) ... [2023-11-06 21:58:38,542 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:38" (1/1) ... [2023-11-06 21:58:38,547 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:58:38,548 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:58:38,549 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:58:38,549 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:58:38,556 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:38" (1/1) ... [2023-11-06 21:58:38,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:58:38,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb52165d-00e6-4e84-9072-19807f225b83/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:38,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb52165d-00e6-4e84-9072-19807f225b83/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:58:38,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb52165d-00e6-4e84-9072-19807f225b83/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:58:38,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 21:58:38,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:58:38,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 21:58:38,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:58:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:58:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:58:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-06 21:58:38,691 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-06 21:58:38,692 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-06 21:58:38,692 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-06 21:58:38,692 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-06 21:58:38,692 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-06 21:58:38,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:58:38,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 21:58:38,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:58:38,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:58:38,698 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 21:58:38,871 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:58:38,873 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:58:39,380 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:58:39,634 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:58:39,635 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 21:58:39,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:39 BoogieIcfgContainer [2023-11-06 21:58:39,639 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:58:39,646 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:58:39,647 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:58:39,651 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:58:39,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:58:37" (1/3) ... [2023-11-06 21:58:39,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab5ca96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:39, skipping insertion in model container [2023-11-06 21:58:39,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:38" (2/3) ... [2023-11-06 21:58:39,656 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab5ca96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:39, skipping insertion in model container [2023-11-06 21:58:39,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:39" (3/3) ... [2023-11-06 21:58:39,658 INFO L112 eAbstractionObserver]: Analyzing ICFG safe014_rmo.oepc.i [2023-11-06 21:58:39,679 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 21:58:39,694 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:58:39,694 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-06 21:58:39,694 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:58:39,797 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 21:58:39,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 137 transitions, 286 flow [2023-11-06 21:58:39,994 INFO L124 PetriNetUnfolderBase]: 3/134 cut-off events. [2023-11-06 21:58:40,016 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:58:40,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 134 events. 3/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2023-11-06 21:58:40,023 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 137 transitions, 286 flow [2023-11-06 21:58:40,029 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 134 transitions, 277 flow [2023-11-06 21:58:40,034 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 21:58:40,047 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 134 transitions, 277 flow [2023-11-06 21:58:40,050 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 134 transitions, 277 flow [2023-11-06 21:58:40,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 134 transitions, 277 flow [2023-11-06 21:58:40,121 INFO L124 PetriNetUnfolderBase]: 3/134 cut-off events. [2023-11-06 21:58:40,121 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:58:40,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 134 events. 3/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2023-11-06 21:58:40,126 INFO L119 LiptonReduction]: Number of co-enabled transitions 2602 [2023-11-06 21:58:50,181 INFO L134 LiptonReduction]: Checked pairs total: 7938 [2023-11-06 21:58:50,182 INFO L136 LiptonReduction]: Total number of compositions: 125 [2023-11-06 21:58:50,200 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:58:50,208 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;@6e5674fb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:58:50,208 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-06 21:58:50,214 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 21:58:50,214 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-06 21:58:50,214 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:58:50,214 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:58:50,215 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 21:58:50,216 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-06 21:58:50,222 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:50,222 INFO L85 PathProgramCache]: Analyzing trace with hash 650846620, now seen corresponding path program 1 times [2023-11-06 21:58:50,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:50,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697018150] [2023-11-06 21:58:50,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:50,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:50,697 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 21:58:50,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:50,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697018150] [2023-11-06 21:58:50,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697018150] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:50,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:50,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 21:58:50,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344362373] [2023-11-06 21:58:50,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:50,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:58:50,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:50,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:58:50,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:50,775 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 262 [2023-11-06 21:58:50,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 25 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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 21:58:50,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:58:50,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 262 [2023-11-06 21:58:50,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:58:51,251 INFO L124 PetriNetUnfolderBase]: 599/973 cut-off events. [2023-11-06 21:58:51,252 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-06 21:58:51,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1972 conditions, 973 events. 599/973 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 4685 event pairs, 155 based on Foata normal form. 0/726 useless extension candidates. Maximal degree in co-relation 1961. Up to 821 conditions per place. [2023-11-06 21:58:51,269 INFO L140 encePairwiseOnDemand]: 252/262 looper letters, 32 selfloop transitions, 4 changer transitions 0/39 dead transitions. [2023-11-06 21:58:51,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 39 transitions, 165 flow [2023-11-06 21:58:51,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:58:51,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:58:51,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2023-11-06 21:58:51,298 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4961832061068702 [2023-11-06 21:58:51,301 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 390 transitions. [2023-11-06 21:58:51,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 390 transitions. [2023-11-06 21:58:51,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:58:51,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 390 transitions. [2023-11-06 21:58:51,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 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 21:58:51,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 262.0) internal successors, (1048), 4 states have internal predecessors, (1048), 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 21:58:51,341 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 262.0) internal successors, (1048), 4 states have internal predecessors, (1048), 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 21:58:51,343 INFO L175 Difference]: Start difference. First operand has 35 places, 25 transitions, 59 flow. Second operand 3 states and 390 transitions. [2023-11-06 21:58:51,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 39 transitions, 165 flow [2023-11-06 21:58:51,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 39 transitions, 160 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 21:58:51,351 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 92 flow [2023-11-06 21:58:51,353 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2023-11-06 21:58:51,361 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2023-11-06 21:58:51,362 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 92 flow [2023-11-06 21:58:51,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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 21:58:51,363 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:58:51,363 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:51,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:58:51,364 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-06 21:58:51,372 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:51,373 INFO L85 PathProgramCache]: Analyzing trace with hash -694238379, now seen corresponding path program 1 times [2023-11-06 21:58:51,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:51,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987544605] [2023-11-06 21:58:51,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:51,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:51,631 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 21:58:51,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:51,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987544605] [2023-11-06 21:58:51,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987544605] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:51,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:51,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:58:51,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386157875] [2023-11-06 21:58:51,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:51,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:58:51,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:51,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:58:51,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:58:51,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 262 [2023-11-06 21:58:51,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 21:58:51,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:58:51,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 262 [2023-11-06 21:58:51,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:58:51,946 INFO L124 PetriNetUnfolderBase]: 425/691 cut-off events. [2023-11-06 21:58:51,947 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2023-11-06 21:58:51,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1744 conditions, 691 events. 425/691 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2977 event pairs, 107 based on Foata normal form. 0/588 useless extension candidates. Maximal degree in co-relation 1733. Up to 538 conditions per place. [2023-11-06 21:58:51,958 INFO L140 encePairwiseOnDemand]: 255/262 looper letters, 29 selfloop transitions, 4 changer transitions 0/36 dead transitions. [2023-11-06 21:58:51,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 172 flow [2023-11-06 21:58:51,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:58:51,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 21:58:51,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 500 transitions. [2023-11-06 21:58:51,963 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4770992366412214 [2023-11-06 21:58:51,964 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 500 transitions. [2023-11-06 21:58:51,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 500 transitions. [2023-11-06 21:58:51,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:58:51,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 500 transitions. [2023-11-06 21:58:51,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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 21:58:51,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 262.0) internal successors, (1310), 5 states have internal predecessors, (1310), 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 21:58:51,982 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 262.0) internal successors, (1310), 5 states have internal predecessors, (1310), 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 21:58:51,983 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 92 flow. Second operand 4 states and 500 transitions. [2023-11-06 21:58:51,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 172 flow [2023-11-06 21:58:51,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 36 transitions, 168 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:58:51,987 INFO L231 Difference]: Finished difference. Result has 34 places, 25 transitions, 84 flow [2023-11-06 21:58:51,987 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=84, PETRI_PLACES=34, PETRI_TRANSITIONS=25} [2023-11-06 21:58:51,995 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2023-11-06 21:58:51,996 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 25 transitions, 84 flow [2023-11-06 21:58:51,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 21:58:51,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:58:51,997 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:51,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:58:51,997 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-06 21:58:52,001 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:52,001 INFO L85 PathProgramCache]: Analyzing trace with hash -694238378, now seen corresponding path program 1 times [2023-11-06 21:58:52,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:52,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104889412] [2023-11-06 21:58:52,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:52,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:52,224 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 21:58:52,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:52,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104889412] [2023-11-06 21:58:52,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104889412] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:52,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:52,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:58:52,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845394885] [2023-11-06 21:58:52,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:52,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:58:52,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:52,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:58:52,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:58:52,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 262 [2023-11-06 21:58:52,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 21:58:52,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:58:52,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 262 [2023-11-06 21:58:52,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:58:52,487 INFO L124 PetriNetUnfolderBase]: 302/496 cut-off events. [2023-11-06 21:58:52,487 INFO L125 PetriNetUnfolderBase]: For 206/206 co-relation queries the response was YES. [2023-11-06 21:58:52,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1243 conditions, 496 events. 302/496 cut-off events. For 206/206 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1913 event pairs, 79 based on Foata normal form. 0/477 useless extension candidates. Maximal degree in co-relation 1231. Up to 208 conditions per place. [2023-11-06 21:58:52,494 INFO L140 encePairwiseOnDemand]: 255/262 looper letters, 35 selfloop transitions, 7 changer transitions 3/48 dead transitions. [2023-11-06 21:58:52,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 48 transitions, 232 flow [2023-11-06 21:58:52,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:58:52,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 21:58:52,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 512 transitions. [2023-11-06 21:58:52,499 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48854961832061067 [2023-11-06 21:58:52,499 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 512 transitions. [2023-11-06 21:58:52,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 512 transitions. [2023-11-06 21:58:52,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:58:52,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 512 transitions. [2023-11-06 21:58:52,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 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 21:58:52,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 262.0) internal successors, (1310), 5 states have internal predecessors, (1310), 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 21:58:52,508 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 262.0) internal successors, (1310), 5 states have internal predecessors, (1310), 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 21:58:52,508 INFO L175 Difference]: Start difference. First operand has 34 places, 25 transitions, 84 flow. Second operand 4 states and 512 transitions. [2023-11-06 21:58:52,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 48 transitions, 232 flow [2023-11-06 21:58:52,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 48 transitions, 227 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 21:58:52,512 INFO L231 Difference]: Finished difference. Result has 36 places, 25 transitions, 105 flow [2023-11-06 21:58:52,513 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=105, PETRI_PLACES=36, PETRI_TRANSITIONS=25} [2023-11-06 21:58:52,515 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2023-11-06 21:58:52,515 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 25 transitions, 105 flow [2023-11-06 21:58:52,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 21:58:52,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:58:52,516 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:52,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:58:52,522 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-06 21:58:52,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:52,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1076386956, now seen corresponding path program 1 times [2023-11-06 21:58:52,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:52,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120595563] [2023-11-06 21:58:52,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:52,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:52,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:52,718 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 21:58:52,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:52,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120595563] [2023-11-06 21:58:52,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120595563] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:52,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:52,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:58:52,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432694522] [2023-11-06 21:58:52,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:52,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:58:52,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:52,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:58:52,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:58:52,733 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 262 [2023-11-06 21:58:52,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 25 transitions, 105 flow. Second operand has 5 states, 5 states have (on average 118.6) internal successors, (593), 5 states have internal predecessors, (593), 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 21:58:52,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:58:52,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 262 [2023-11-06 21:58:52,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:58:53,000 INFO L124 PetriNetUnfolderBase]: 282/460 cut-off events. [2023-11-06 21:58:53,001 INFO L125 PetriNetUnfolderBase]: For 420/420 co-relation queries the response was YES. [2023-11-06 21:58:53,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1342 conditions, 460 events. 282/460 cut-off events. For 420/420 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1771 event pairs, 79 based on Foata normal form. 12/465 useless extension candidates. Maximal degree in co-relation 1329. Up to 208 conditions per place. [2023-11-06 21:58:53,004 INFO L140 encePairwiseOnDemand]: 255/262 looper letters, 0 selfloop transitions, 0 changer transitions 42/42 dead transitions. [2023-11-06 21:58:53,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 42 transitions, 211 flow [2023-11-06 21:58:53,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 21:58:53,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 21:58:53,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 622 transitions. [2023-11-06 21:58:53,008 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47480916030534354 [2023-11-06 21:58:53,008 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 622 transitions. [2023-11-06 21:58:53,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 622 transitions. [2023-11-06 21:58:53,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:58:53,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 622 transitions. [2023-11-06 21:58:53,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 124.4) internal successors, (622), 5 states have internal predecessors, (622), 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 21:58:53,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 262.0) internal successors, (1572), 6 states have internal predecessors, (1572), 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 21:58:53,019 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 262.0) internal successors, (1572), 6 states have internal predecessors, (1572), 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 21:58:53,019 INFO L175 Difference]: Start difference. First operand has 36 places, 25 transitions, 105 flow. Second operand 5 states and 622 transitions. [2023-11-06 21:58:53,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 42 transitions, 211 flow [2023-11-06 21:58:53,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 42 transitions, 187 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-11-06 21:58:53,023 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2023-11-06 21:58:53,023 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2023-11-06 21:58:53,024 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -2 predicate places. [2023-11-06 21:58:53,025 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2023-11-06 21:58:53,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.6) internal successors, (593), 5 states have internal predecessors, (593), 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 21:58:53,029 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-06 21:58:53,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-06 21:58:53,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-06 21:58:53,031 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-06 21:58:53,031 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-06 21:58:53,031 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-06 21:58:53,032 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-06 21:58:53,032 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-06 21:58:53,032 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-06 21:58:53,032 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-06 21:58:53,033 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-06 21:58:53,033 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-06 21:58:53,033 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-06 21:58:53,034 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-06 21:58:53,034 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-06 21:58:53,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 21:58:53,035 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-06 21:58:53,042 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 21:58:53,043 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 21:58:53,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:58:53 BasicIcfg [2023-11-06 21:58:53,048 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 21:58:53,049 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:58:53,049 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:58:53,050 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:58:53,050 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:39" (3/4) ... [2023-11-06 21:58:53,052 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 21:58:53,056 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-06 21:58:53,057 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-06 21:58:53,057 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-06 21:58:53,065 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2023-11-06 21:58:53,066 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-06 21:58:53,066 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 21:58:53,067 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 21:58:53,175 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb52165d-00e6-4e84-9072-19807f225b83/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 21:58:53,175 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb52165d-00e6-4e84-9072-19807f225b83/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 21:58:53,176 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:58:53,176 INFO L158 Benchmark]: Toolchain (without parser) took 15478.21ms. Allocated memory was 142.6MB in the beginning and 207.6MB in the end (delta: 65.0MB). Free memory was 104.0MB in the beginning and 113.9MB in the end (delta: -9.9MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. [2023-11-06 21:58:53,177 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:58:53,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 705.89ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 81.0MB in the end (delta: 22.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-06 21:58:53,178 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.57ms. Allocated memory is still 142.6MB. Free memory was 81.0MB in the beginning and 78.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 21:58:53,178 INFO L158 Benchmark]: Boogie Preprocessor took 77.37ms. Allocated memory is still 142.6MB. Free memory was 78.4MB in the beginning and 76.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:58:53,179 INFO L158 Benchmark]: RCFGBuilder took 1091.07ms. Allocated memory is still 142.6MB. Free memory was 76.3MB in the beginning and 66.1MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 21:58:53,179 INFO L158 Benchmark]: TraceAbstraction took 13402.07ms. Allocated memory was 142.6MB in the beginning and 207.6MB in the end (delta: 65.0MB). Free memory was 65.4MB in the beginning and 118.1MB in the end (delta: -52.7MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB. [2023-11-06 21:58:53,180 INFO L158 Benchmark]: Witness Printer took 126.65ms. Allocated memory is still 207.6MB. Free memory was 118.1MB in the beginning and 113.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 21:58:53,182 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 705.89ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 81.0MB in the end (delta: 22.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.57ms. Allocated memory is still 142.6MB. Free memory was 81.0MB in the beginning and 78.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.37ms. Allocated memory is still 142.6MB. Free memory was 78.4MB in the beginning and 76.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1091.07ms. Allocated memory is still 142.6MB. Free memory was 76.3MB in the beginning and 66.1MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 13402.07ms. Allocated memory was 142.6MB in the beginning and 207.6MB in the end (delta: 65.0MB). Free memory was 65.4MB in the beginning and 118.1MB in the end (delta: -52.7MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB. * Witness Printer took 126.65ms. Allocated memory is still 207.6MB. Free memory was 118.1MB in the beginning and 113.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.1s, 141 PlacesBefore, 35 PlacesAfterwards, 134 TransitionsBefore, 25 TransitionsAfterwards, 2602 CoEnabledTransitionPairs, 7 FixpointIterations, 56 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 3 ChoiceCompositions, 125 TotalNumberOfCompositions, 7938 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3948, independent: 3698, independent conditional: 0, independent unconditional: 3698, dependent: 250, dependent conditional: 0, dependent unconditional: 250, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1491, independent: 1431, independent conditional: 0, independent unconditional: 1431, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3948, independent: 2267, independent conditional: 0, independent unconditional: 2267, dependent: 190, dependent conditional: 0, dependent unconditional: 190, unknown: 1491, unknown conditional: 0, unknown unconditional: 1491] , Statistics on independence cache: Total cache size (in pairs): 133, Positive cache size: 111, Positive conditional cache size: 0, Positive unconditional cache size: 111, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 784]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 784]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 819]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 819]: 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 7 procedures, 166 locations, 15 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: 13.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 118 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 95 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 210 IncrementalHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 7 mSDtfsCounter, 210 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 111 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 21:58:53,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb52165d-00e6-4e84-9072-19807f225b83/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