./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe019_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_5ac9fcc5-025f-4ad1-8c95-0986f8d32de7/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ac9fcc5-025f-4ad1-8c95-0986f8d32de7/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ac9fcc5-025f-4ad1-8c95-0986f8d32de7/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ac9fcc5-025f-4ad1-8c95-0986f8d32de7/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe019_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ac9fcc5-025f-4ad1-8c95-0986f8d32de7/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ac9fcc5-025f-4ad1-8c95-0986f8d32de7/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --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 2ad190c36ab064f1e4bfbebf06775e6b037058a5a86becabf7b70897d3619304 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:58:50,572 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:58:50,670 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ac9fcc5-025f-4ad1-8c95-0986f8d32de7/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:58:50,676 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:58:50,677 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:58:50,704 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:58:50,705 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:58:50,705 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:58:50,706 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:58:50,707 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:58:50,708 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:58:50,709 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:58:50,709 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:58:50,710 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:58:50,711 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:58:50,711 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:58:50,712 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:58:50,712 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:58:50,713 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:58:50,714 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:58:50,714 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:58:50,715 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:58:50,716 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:58:50,716 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:58:50,717 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:58:50,718 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:58:50,718 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:58:50,719 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:58:50,719 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:58:50,720 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:58:50,721 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:58:50,721 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:58:50,722 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:58:50,722 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:58:50,722 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:58:50,723 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:58:50,723 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:58:50,724 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:58:50,724 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:58:50,724 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:58:50,725 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:58:50,725 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_5ac9fcc5-025f-4ad1-8c95-0986f8d32de7/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ac9fcc5-025f-4ad1-8c95-0986f8d32de7/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ad190c36ab064f1e4bfbebf06775e6b037058a5a86becabf7b70897d3619304 [2023-11-19 07:58:50,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:58:51,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:58:51,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:58:51,004 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:58:51,005 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:58:51,007 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ac9fcc5-025f-4ad1-8c95-0986f8d32de7/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/safe019_rmo.opt.i [2023-11-19 07:58:54,330 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:58:54,642 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:58:54,643 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ac9fcc5-025f-4ad1-8c95-0986f8d32de7/sv-benchmarks/c/pthread-wmm/safe019_rmo.opt.i [2023-11-19 07:58:54,668 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ac9fcc5-025f-4ad1-8c95-0986f8d32de7/bin/uautomizer-verify-uCwYo4JHxu/data/177267f65/6e8f391a6c614a4ca34cc162c0752f06/FLAGad65d2652 [2023-11-19 07:58:54,684 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ac9fcc5-025f-4ad1-8c95-0986f8d32de7/bin/uautomizer-verify-uCwYo4JHxu/data/177267f65/6e8f391a6c614a4ca34cc162c0752f06 [2023-11-19 07:58:54,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:58:54,688 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:58:54,690 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:54,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:58:54,704 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:58:54,705 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:54" (1/1) ... [2023-11-19 07:58:54,706 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45535d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:54, skipping insertion in model container [2023-11-19 07:58:54,706 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:54" (1/1) ... [2023-11-19 07:58:54,800 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:58:55,353 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:58:55,366 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:58:55,531 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:58:55,578 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:58:55,579 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:58:55,587 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:58:55,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55 WrapperNode [2023-11-19 07:58:55,588 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:55,589 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:58:55,590 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:58:55,590 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:58:55,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2023-11-19 07:58:55,643 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2023-11-19 07:58:55,693 INFO L138 Inliner]: procedures = 177, calls = 87, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 154 [2023-11-19 07:58:55,694 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:58:55,695 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:58:55,695 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:58:55,696 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:58:55,706 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2023-11-19 07:58:55,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2023-11-19 07:58:55,725 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2023-11-19 07:58:55,725 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2023-11-19 07:58:55,741 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2023-11-19 07:58:55,759 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2023-11-19 07:58:55,762 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2023-11-19 07:58:55,764 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2023-11-19 07:58:55,769 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:58:55,770 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:58:55,770 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:58:55,771 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:58:55,771 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2023-11-19 07:58:55,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:58:55,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ac9fcc5-025f-4ad1-8c95-0986f8d32de7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:55,821 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ac9fcc5-025f-4ad1-8c95-0986f8d32de7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:55,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ac9fcc5-025f-4ad1-8c95-0986f8d32de7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:58:55,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:58:55,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:58:55,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:58:55,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:58:55,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:58:55,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:58:55,868 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 07:58:55,868 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 07:58:55,868 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 07:58:55,868 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 07:58:55,868 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 07:58:55,869 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 07:58:55,869 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-19 07:58:55,869 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-19 07:58:55,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:58:55,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:58:55,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:58:55,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:58:55,872 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:58:56,040 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:58:56,044 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:58:56,667 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:58:57,076 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:58:57,076 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:58:57,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:57 BoogieIcfgContainer [2023-11-19 07:58:57,086 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:58:57,089 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:58:57,090 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:58:57,094 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:58:57,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:58:54" (1/3) ... [2023-11-19 07:58:57,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24de428e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:57, skipping insertion in model container [2023-11-19 07:58:57,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (2/3) ... [2023-11-19 07:58:57,098 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24de428e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:57, skipping insertion in model container [2023-11-19 07:58:57,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:57" (3/3) ... [2023-11-19 07:58:57,100 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_rmo.opt.i [2023-11-19 07:58:57,110 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:58:57,121 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:58:57,122 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-19 07:58:57,122 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:58:57,235 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:58:57,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 170 places, 160 transitions, 336 flow [2023-11-19 07:58:57,391 INFO L124 PetriNetUnfolderBase]: 3/156 cut-off events. [2023-11-19 07:58:57,392 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:58:57,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 156 events. 3/156 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 97 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2023-11-19 07:58:57,399 INFO L82 GeneralOperation]: Start removeDead. Operand has 170 places, 160 transitions, 336 flow [2023-11-19 07:58:57,408 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 166 places, 156 transitions, 324 flow [2023-11-19 07:58:57,412 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:58:57,434 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 166 places, 156 transitions, 324 flow [2023-11-19 07:58:57,439 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 166 places, 156 transitions, 324 flow [2023-11-19 07:58:57,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 166 places, 156 transitions, 324 flow [2023-11-19 07:58:57,496 INFO L124 PetriNetUnfolderBase]: 3/156 cut-off events. [2023-11-19 07:58:57,497 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:58:57,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 156 events. 3/156 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 97 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2023-11-19 07:58:57,502 INFO L119 LiptonReduction]: Number of co-enabled transitions 4246 [2023-11-19 07:59:07,889 INFO L134 LiptonReduction]: Checked pairs total: 12240 [2023-11-19 07:59:07,889 INFO L136 LiptonReduction]: Total number of compositions: 138 [2023-11-19 07:59:07,906 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:59:07,914 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@43b6747d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:59:07,914 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-19 07:59:07,919 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:59:07,919 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-19 07:59:07,920 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:59:07,920 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:07,921 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:59:07,921 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:59:07,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:07,926 INFO L85 PathProgramCache]: Analyzing trace with hash 895540208, now seen corresponding path program 1 times [2023-11-19 07:59:07,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:07,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188060736] [2023-11-19 07:59:07,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:07,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:08,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:08,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:08,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188060736] [2023-11-19 07:59:08,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188060736] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:08,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:08,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:59:08,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971873442] [2023-11-19 07:59:08,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:08,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:59:08,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:08,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:59:08,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:08,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 298 [2023-11-19 07:59:08,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 32 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 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) [2023-11-19 07:59:08,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:08,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 298 [2023-11-19 07:59:08,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:11,131 INFO L124 PetriNetUnfolderBase]: 8379/11690 cut-off events. [2023-11-19 07:59:11,131 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2023-11-19 07:59:11,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23654 conditions, 11690 events. 8379/11690 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 516. Compared 61704 event pairs, 2390 based on Foata normal form. 0/8627 useless extension candidates. Maximal degree in co-relation 23642. Up to 10350 conditions per place. [2023-11-19 07:59:11,237 INFO L140 encePairwiseOnDemand]: 285/298 looper letters, 47 selfloop transitions, 5 changer transitions 0/53 dead transitions. [2023-11-19 07:59:11,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 53 transitions, 231 flow [2023-11-19 07:59:11,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:59:11,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:59:11,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 453 transitions. [2023-11-19 07:59:11,261 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5067114093959731 [2023-11-19 07:59:11,262 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 453 transitions. [2023-11-19 07:59:11,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 453 transitions. [2023-11-19 07:59:11,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:11,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 453 transitions. [2023-11-19 07:59:11,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 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) [2023-11-19 07:59:11,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 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) [2023-11-19 07:59:11,283 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 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) [2023-11-19 07:59:11,285 INFO L175 Difference]: Start difference. First operand has 45 places, 32 transitions, 76 flow. Second operand 3 states and 453 transitions. [2023-11-19 07:59:11,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 53 transitions, 231 flow [2023-11-19 07:59:11,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 53 transitions, 224 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:59:11,294 INFO L231 Difference]: Finished difference. Result has 44 places, 36 transitions, 119 flow [2023-11-19 07:59:11,297 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=44, PETRI_TRANSITIONS=36} [2023-11-19 07:59:11,307 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -1 predicate places. [2023-11-19 07:59:11,307 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 36 transitions, 119 flow [2023-11-19 07:59:11,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 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) [2023-11-19 07:59:11,308 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:11,308 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:11,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:59:11,309 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:59:11,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:11,322 INFO L85 PathProgramCache]: Analyzing trace with hash -371059715, now seen corresponding path program 1 times [2023-11-19 07:59:11,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:11,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349037244] [2023-11-19 07:59:11,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:11,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:11,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:11,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:11,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349037244] [2023-11-19 07:59:11,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349037244] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:11,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:11,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:59:11,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825957680] [2023-11-19 07:59:11,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:11,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:59:11,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:11,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:59:11,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:59:11,590 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 298 [2023-11-19 07:59:11,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 36 transitions, 119 flow. Second operand has 4 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 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) [2023-11-19 07:59:11,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:11,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 298 [2023-11-19 07:59:11,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:13,533 INFO L124 PetriNetUnfolderBase]: 5187/7226 cut-off events. [2023-11-19 07:59:13,533 INFO L125 PetriNetUnfolderBase]: For 419/419 co-relation queries the response was YES. [2023-11-19 07:59:13,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17729 conditions, 7226 events. 5187/7226 cut-off events. For 419/419 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 35366 event pairs, 1390 based on Foata normal form. 0/6181 useless extension candidates. Maximal degree in co-relation 17718. Up to 5885 conditions per place. [2023-11-19 07:59:13,606 INFO L140 encePairwiseOnDemand]: 289/298 looper letters, 43 selfloop transitions, 5 changer transitions 0/49 dead transitions. [2023-11-19 07:59:13,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 49 transitions, 239 flow [2023-11-19 07:59:13,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:59:13,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:59:13,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 576 transitions. [2023-11-19 07:59:13,612 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48322147651006714 [2023-11-19 07:59:13,612 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 576 transitions. [2023-11-19 07:59:13,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 576 transitions. [2023-11-19 07:59:13,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:13,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 576 transitions. [2023-11-19 07:59:13,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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) [2023-11-19 07:59:13,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 298.0) internal successors, (1490), 5 states have internal predecessors, (1490), 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) [2023-11-19 07:59:13,626 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 298.0) internal successors, (1490), 5 states have internal predecessors, (1490), 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) [2023-11-19 07:59:13,627 INFO L175 Difference]: Start difference. First operand has 44 places, 36 transitions, 119 flow. Second operand 4 states and 576 transitions. [2023-11-19 07:59:13,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 49 transitions, 239 flow [2023-11-19 07:59:13,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 49 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:59:13,638 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 108 flow [2023-11-19 07:59:13,638 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=108, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2023-11-19 07:59:13,639 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -3 predicate places. [2023-11-19 07:59:13,639 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 108 flow [2023-11-19 07:59:13,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 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) [2023-11-19 07:59:13,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:13,640 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:13,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:59:13,641 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:59:13,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:13,645 INFO L85 PathProgramCache]: Analyzing trace with hash -371059714, now seen corresponding path program 1 times [2023-11-19 07:59:13,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:13,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683430440] [2023-11-19 07:59:13,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:13,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:13,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:13,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:13,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:13,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683430440] [2023-11-19 07:59:13,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683430440] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:13,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:13,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:59:13,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224552496] [2023-11-19 07:59:13,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:13,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:59:13,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:13,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:59:13,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:59:13,845 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 298 [2023-11-19 07:59:13,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 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) [2023-11-19 07:59:13,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:13,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 298 [2023-11-19 07:59:13,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:15,352 INFO L124 PetriNetUnfolderBase]: 3471/4872 cut-off events. [2023-11-19 07:59:15,352 INFO L125 PetriNetUnfolderBase]: For 1338/1338 co-relation queries the response was YES. [2023-11-19 07:59:15,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11808 conditions, 4872 events. 3471/4872 cut-off events. For 1338/1338 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 22605 event pairs, 964 based on Foata normal form. 0/4647 useless extension candidates. Maximal degree in co-relation 11796. Up to 1836 conditions per place. [2023-11-19 07:59:15,395 INFO L140 encePairwiseOnDemand]: 289/298 looper letters, 58 selfloop transitions, 9 changer transitions 0/68 dead transitions. [2023-11-19 07:59:15,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 68 transitions, 332 flow [2023-11-19 07:59:15,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:59:15,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:59:15,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 595 transitions. [2023-11-19 07:59:15,400 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49916107382550334 [2023-11-19 07:59:15,400 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 595 transitions. [2023-11-19 07:59:15,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 595 transitions. [2023-11-19 07:59:15,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:15,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 595 transitions. [2023-11-19 07:59:15,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 148.75) internal successors, (595), 4 states have internal predecessors, (595), 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) [2023-11-19 07:59:15,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 298.0) internal successors, (1490), 5 states have internal predecessors, (1490), 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) [2023-11-19 07:59:15,409 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 298.0) internal successors, (1490), 5 states have internal predecessors, (1490), 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) [2023-11-19 07:59:15,410 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 108 flow. Second operand 4 states and 595 transitions. [2023-11-19 07:59:15,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 68 transitions, 332 flow [2023-11-19 07:59:15,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 68 transitions, 326 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:59:15,416 INFO L231 Difference]: Finished difference. Result has 44 places, 36 transitions, 160 flow [2023-11-19 07:59:15,417 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=160, PETRI_PLACES=44, PETRI_TRANSITIONS=36} [2023-11-19 07:59:15,419 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -1 predicate places. [2023-11-19 07:59:15,419 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 36 transitions, 160 flow [2023-11-19 07:59:15,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 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) [2023-11-19 07:59:15,420 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:15,420 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:15,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:59:15,426 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:59:15,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:15,427 INFO L85 PathProgramCache]: Analyzing trace with hash -86107429, now seen corresponding path program 1 times [2023-11-19 07:59:15,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:15,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834799783] [2023-11-19 07:59:15,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:15,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:15,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:15,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:15,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:15,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834799783] [2023-11-19 07:59:15,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834799783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:15,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:15,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:59:15,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541687295] [2023-11-19 07:59:15,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:15,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:59:15,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:15,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:59:15,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:59:15,699 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 298 [2023-11-19 07:59:15,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 36 transitions, 160 flow. Second operand has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 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) [2023-11-19 07:59:15,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:15,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 298 [2023-11-19 07:59:15,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:17,071 INFO L124 PetriNetUnfolderBase]: 3171/4398 cut-off events. [2023-11-19 07:59:17,072 INFO L125 PetriNetUnfolderBase]: For 2757/2757 co-relation queries the response was YES. [2023-11-19 07:59:17,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12235 conditions, 4398 events. 3171/4398 cut-off events. For 2757/2757 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 19931 event pairs, 920 based on Foata normal form. 0/4371 useless extension candidates. Maximal degree in co-relation 12222. Up to 1836 conditions per place. [2023-11-19 07:59:17,110 INFO L140 encePairwiseOnDemand]: 289/298 looper letters, 67 selfloop transitions, 13 changer transitions 4/85 dead transitions. [2023-11-19 07:59:17,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 85 transitions, 454 flow [2023-11-19 07:59:17,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:59:17,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:59:17,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 743 transitions. [2023-11-19 07:59:17,115 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4986577181208054 [2023-11-19 07:59:17,115 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 743 transitions. [2023-11-19 07:59:17,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 743 transitions. [2023-11-19 07:59:17,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:17,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 743 transitions. [2023-11-19 07:59:17,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 148.6) internal successors, (743), 5 states have internal predecessors, (743), 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) [2023-11-19 07:59:17,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 298.0) internal successors, (1788), 6 states have internal predecessors, (1788), 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) [2023-11-19 07:59:17,126 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 298.0) internal successors, (1788), 6 states have internal predecessors, (1788), 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) [2023-11-19 07:59:17,127 INFO L175 Difference]: Start difference. First operand has 44 places, 36 transitions, 160 flow. Second operand 5 states and 743 transitions. [2023-11-19 07:59:17,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 85 transitions, 454 flow [2023-11-19 07:59:17,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 85 transitions, 436 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-11-19 07:59:17,142 INFO L231 Difference]: Finished difference. Result has 47 places, 36 transitions, 184 flow [2023-11-19 07:59:17,142 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=184, PETRI_PLACES=47, PETRI_TRANSITIONS=36} [2023-11-19 07:59:17,144 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 2 predicate places. [2023-11-19 07:59:17,144 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 36 transitions, 184 flow [2023-11-19 07:59:17,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 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) [2023-11-19 07:59:17,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:17,146 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] [2023-11-19 07:59:17,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:59:17,146 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:59:17,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:17,147 INFO L85 PathProgramCache]: Analyzing trace with hash -630532383, now seen corresponding path program 1 times [2023-11-19 07:59:17,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:17,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367752461] [2023-11-19 07:59:17,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:17,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:17,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:17,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:17,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367752461] [2023-11-19 07:59:17,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367752461] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:17,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:17,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:59:17,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482480881] [2023-11-19 07:59:17,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:17,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:59:17,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:17,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:59:17,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:59:17,409 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 298 [2023-11-19 07:59:17,411 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 36 transitions, 184 flow. Second operand has 6 states, 6 states have (on average 134.33333333333334) internal successors, (806), 6 states have internal predecessors, (806), 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) [2023-11-19 07:59:17,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:17,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 298 [2023-11-19 07:59:17,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:18,867 INFO L124 PetriNetUnfolderBase]: 3144/4351 cut-off events. [2023-11-19 07:59:18,868 INFO L125 PetriNetUnfolderBase]: For 3379/3379 co-relation queries the response was YES. [2023-11-19 07:59:18,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12406 conditions, 4351 events. 3144/4351 cut-off events. For 3379/3379 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 19723 event pairs, 920 based on Foata normal form. 16/4356 useless extension candidates. Maximal degree in co-relation 12392. Up to 1836 conditions per place. [2023-11-19 07:59:18,888 INFO L140 encePairwiseOnDemand]: 289/298 looper letters, 0 selfloop transitions, 0 changer transitions 77/77 dead transitions. [2023-11-19 07:59:18,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 77 transitions, 406 flow [2023-11-19 07:59:18,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:59:18,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:59:18,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 866 transitions. [2023-11-19 07:59:18,892 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4843400447427293 [2023-11-19 07:59:18,893 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 866 transitions. [2023-11-19 07:59:18,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 866 transitions. [2023-11-19 07:59:18,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:18,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 866 transitions. [2023-11-19 07:59:18,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 144.33333333333334) internal successors, (866), 6 states have internal predecessors, (866), 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) [2023-11-19 07:59:18,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 298.0) internal successors, (2086), 7 states have internal predecessors, (2086), 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) [2023-11-19 07:59:18,904 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 298.0) internal successors, (2086), 7 states have internal predecessors, (2086), 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) [2023-11-19 07:59:18,904 INFO L175 Difference]: Start difference. First operand has 47 places, 36 transitions, 184 flow. Second operand 6 states and 866 transitions. [2023-11-19 07:59:18,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 77 transitions, 406 flow [2023-11-19 07:59:18,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 77 transitions, 351 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-19 07:59:18,977 INFO L231 Difference]: Finished difference. Result has 42 places, 0 transitions, 0 flow [2023-11-19 07:59:18,978 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=42, PETRI_TRANSITIONS=0} [2023-11-19 07:59:18,978 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -3 predicate places. [2023-11-19 07:59:18,979 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 0 transitions, 0 flow [2023-11-19 07:59:18,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 134.33333333333334) internal successors, (806), 6 states have internal predecessors, (806), 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) [2023-11-19 07:59:18,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-19 07:59:18,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-19 07:59:18,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-19 07:59:18,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-19 07:59:18,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-19 07:59:18,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-19 07:59:18,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-19 07:59:18,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-19 07:59:18,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-19 07:59:18,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-19 07:59:18,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-19 07:59:18,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-19 07:59:18,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-19 07:59:18,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-19 07:59:18,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-19 07:59:18,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-19 07:59:18,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-19 07:59:18,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-19 07:59:18,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-19 07:59:18,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-19 07:59:18,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:59:18,987 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-19 07:59:18,993 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:59:18,993 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:59:18,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:59:18 BasicIcfg [2023-11-19 07:59:18,997 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:59:18,997 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:59:18,997 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:59:18,998 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:59:18,998 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:57" (3/4) ... [2023-11-19 07:59:19,000 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:59:19,003 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 07:59:19,003 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 07:59:19,003 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-19 07:59:19,003 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-19 07:59:19,012 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-19 07:59:19,012 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:59:19,012 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-19 07:59:19,012 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:59:19,111 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ac9fcc5-025f-4ad1-8c95-0986f8d32de7/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:59:19,112 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ac9fcc5-025f-4ad1-8c95-0986f8d32de7/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:59:19,112 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:59:19,112 INFO L158 Benchmark]: Toolchain (without parser) took 24424.11ms. Allocated memory was 130.0MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 82.9MB in the beginning and 1.0GB in the end (delta: -943.2MB). Peak memory consumption was 320.8MB. Max. memory is 16.1GB. [2023-11-19 07:59:19,113 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:59:19,113 INFO L158 Benchmark]: CACSL2BoogieTranslator took 898.24ms. Allocated memory was 130.0MB in the beginning and 169.9MB in the end (delta: 39.8MB). Free memory was 82.6MB in the beginning and 132.2MB in the end (delta: -49.6MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2023-11-19 07:59:19,114 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.28ms. Allocated memory is still 169.9MB. Free memory was 132.2MB in the beginning and 130.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:59:19,114 INFO L158 Benchmark]: Boogie Preprocessor took 74.23ms. Allocated memory is still 169.9MB. Free memory was 130.1MB in the beginning and 127.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:59:19,114 INFO L158 Benchmark]: RCFGBuilder took 1315.92ms. Allocated memory is still 169.9MB. Free memory was 127.0MB in the beginning and 119.8MB in the end (delta: 7.2MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2023-11-19 07:59:19,115 INFO L158 Benchmark]: TraceAbstraction took 21907.57ms. Allocated memory was 169.9MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 119.8MB in the beginning and 1.0GB in the end (delta: -911.6MB). Peak memory consumption was 560.6MB. Max. memory is 16.1GB. [2023-11-19 07:59:19,115 INFO L158 Benchmark]: Witness Printer took 114.55ms. Allocated memory is still 1.4GB. Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:59:19,117 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 898.24ms. Allocated memory was 130.0MB in the beginning and 169.9MB in the end (delta: 39.8MB). Free memory was 82.6MB in the beginning and 132.2MB in the end (delta: -49.6MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.28ms. Allocated memory is still 169.9MB. Free memory was 132.2MB in the beginning and 130.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.23ms. Allocated memory is still 169.9MB. Free memory was 130.1MB in the beginning and 127.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1315.92ms. Allocated memory is still 169.9MB. Free memory was 127.0MB in the beginning and 119.8MB in the end (delta: 7.2MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. * TraceAbstraction took 21907.57ms. Allocated memory was 169.9MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 119.8MB in the beginning and 1.0GB in the end (delta: -911.6MB). Peak memory consumption was 560.6MB. Max. memory is 16.1GB. * Witness Printer took 114.55ms. Allocated memory is still 1.4GB. Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.5s, 166 PlacesBefore, 45 PlacesAfterwards, 156 TransitionsBefore, 32 TransitionsAfterwards, 4246 CoEnabledTransitionPairs, 7 FixpointIterations, 60 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 3 ChoiceCompositions, 138 TotalNumberOfCompositions, 12240 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4579, independent: 4271, independent conditional: 0, independent unconditional: 4271, dependent: 308, dependent conditional: 0, dependent unconditional: 308, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2239, independent: 2164, independent conditional: 0, independent unconditional: 2164, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4579, independent: 2107, independent conditional: 0, independent unconditional: 2107, dependent: 233, dependent conditional: 0, dependent unconditional: 233, unknown: 2239, unknown conditional: 0, unknown unconditional: 2239] , Statistics on independence cache: Total cache size (in pairs): 170, Positive cache size: 145, Positive conditional cache size: 0, Positive unconditional cache size: 145, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 787]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 787]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 839]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 839]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 856]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 856]: 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, 200 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: 21.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 277 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 263 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 421 IncrementalHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 1 mSDtfsCounter, 421 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=184occurred in iteration=4, InterpolantAutomatonStates: 22, 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, 1.0s 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! [2023-11-19 07:59:19,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ac9fcc5-025f-4ad1-8c95-0986f8d32de7/bin/uautomizer-verify-uCwYo4JHxu/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