./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix050.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_07e57f3b-52c6-4861-83fd-6711bc515dd5/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e57f3b-52c6-4861-83fd-6711bc515dd5/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_07e57f3b-52c6-4861-83fd-6711bc515dd5/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e57f3b-52c6-4861-83fd-6711bc515dd5/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix050.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e57f3b-52c6-4861-83fd-6711bc515dd5/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_07e57f3b-52c6-4861-83fd-6711bc515dd5/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 a3c87384db48703a1f350b065ac4130898667537456cdd449d5c78c22c9ba26d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:22:26,304 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:22:26,442 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e57f3b-52c6-4861-83fd-6711bc515dd5/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:22:26,452 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:22:26,453 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:22:26,504 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:22:26,505 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:22:26,506 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:22:26,507 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:22:26,516 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:22:26,518 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:22:26,518 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:22:26,519 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:22:26,521 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:22:26,522 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:22:26,522 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:22:26,523 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:22:26,523 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:22:26,524 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:22:26,524 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:22:26,525 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:22:26,526 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:22:26,526 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:22:26,527 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:22:26,527 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:22:26,528 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:22:26,528 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:22:26,529 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:22:26,530 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:22:26,531 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:22:26,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:22:26,533 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:22:26,533 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:22:26,533 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:22:26,534 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:22:26,534 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:22:26,534 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:22:26,535 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:22:26,535 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:22:26,535 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:22:26,536 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:22:26,536 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_07e57f3b-52c6-4861-83fd-6711bc515dd5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e57f3b-52c6-4861-83fd-6711bc515dd5/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3c87384db48703a1f350b065ac4130898667537456cdd449d5c78c22c9ba26d [2023-11-06 22:22:26,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:22:26,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:22:26,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:22:26,902 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:22:26,902 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:22:26,904 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e57f3b-52c6-4861-83fd-6711bc515dd5/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-wmm/mix050.i [2023-11-06 22:22:30,037 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:22:30,366 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:22:30,366 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e57f3b-52c6-4861-83fd-6711bc515dd5/sv-benchmarks/c/pthread-wmm/mix050.i [2023-11-06 22:22:30,389 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e57f3b-52c6-4861-83fd-6711bc515dd5/bin/uautomizer-verify-WvqO1wxjHP/data/b1a9c509c/9e873d1700ae4ed18766995bb52f0bd3/FLAG1c156216a [2023-11-06 22:22:30,406 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e57f3b-52c6-4861-83fd-6711bc515dd5/bin/uautomizer-verify-WvqO1wxjHP/data/b1a9c509c/9e873d1700ae4ed18766995bb52f0bd3 [2023-11-06 22:22:30,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:22:30,411 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:22:30,413 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:22:30,414 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:22:30,424 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:22:30,425 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:22:30" (1/1) ... [2023-11-06 22:22:30,427 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64614835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:30, skipping insertion in model container [2023-11-06 22:22:30,427 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:22:30" (1/1) ... [2023-11-06 22:22:30,505 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:22:31,196 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:22:31,216 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:22:31,336 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:22:31,388 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:31,388 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:31,401 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:22:31,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:31 WrapperNode [2023-11-06 22:22:31,402 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:22:31,404 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:22:31,404 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:22:31,405 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:22:31,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:31" (1/1) ... [2023-11-06 22:22:31,467 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:31" (1/1) ... [2023-11-06 22:22:31,530 INFO L138 Inliner]: procedures = 177, calls = 68, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 152 [2023-11-06 22:22:31,531 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:22:31,532 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:22:31,532 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:22:31,532 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:22:31,546 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:31" (1/1) ... [2023-11-06 22:22:31,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:31" (1/1) ... [2023-11-06 22:22:31,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:31" (1/1) ... [2023-11-06 22:22:31,567 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:31" (1/1) ... [2023-11-06 22:22:31,596 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:31" (1/1) ... [2023-11-06 22:22:31,598 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:31" (1/1) ... [2023-11-06 22:22:31,602 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:31" (1/1) ... [2023-11-06 22:22:31,604 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:31" (1/1) ... [2023-11-06 22:22:31,610 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:22:31,611 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:22:31,611 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:22:31,612 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:22:31,613 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:31" (1/1) ... [2023-11-06 22:22:31,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:22:31,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e57f3b-52c6-4861-83fd-6711bc515dd5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:22:31,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e57f3b-52c6-4861-83fd-6711bc515dd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:22:31,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e57f3b-52c6-4861-83fd-6711bc515dd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:22:31,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:22:31,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:22:31,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:22:31,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:22:31,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:22:31,717 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-06 22:22:31,717 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-06 22:22:31,717 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-06 22:22:31,718 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-06 22:22:31,718 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-06 22:22:31,719 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-06 22:22:31,719 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-06 22:22:31,721 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-06 22:22:31,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:22:31,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:22:31,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:22:31,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:22:31,725 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:22:31,966 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:22:31,968 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:22:32,400 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:22:32,570 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:22:32,570 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:22:32,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:22:32 BoogieIcfgContainer [2023-11-06 22:22:32,573 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:22:32,576 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:22:32,576 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:22:32,580 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:22:32,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:22:30" (1/3) ... [2023-11-06 22:22:32,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7180cdb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:22:32, skipping insertion in model container [2023-11-06 22:22:32,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:31" (2/3) ... [2023-11-06 22:22:32,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7180cdb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:22:32, skipping insertion in model container [2023-11-06 22:22:32,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:22:32" (3/3) ... [2023-11-06 22:22:32,583 INFO L112 eAbstractionObserver]: Analyzing ICFG mix050.i [2023-11-06 22:22:32,592 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:22:32,604 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:22:32,605 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-06 22:22:32,605 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:22:32,676 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 22:22:32,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 154 places, 144 transitions, 304 flow [2023-11-06 22:22:32,781 INFO L124 PetriNetUnfolderBase]: 3/140 cut-off events. [2023-11-06 22:22:32,782 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:22:32,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 140 events. 3/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2023-11-06 22:22:32,789 INFO L82 GeneralOperation]: Start removeDead. Operand has 154 places, 144 transitions, 304 flow [2023-11-06 22:22:32,795 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 140 transitions, 292 flow [2023-11-06 22:22:32,799 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:22:32,815 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 140 transitions, 292 flow [2023-11-06 22:22:32,819 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 140 transitions, 292 flow [2023-11-06 22:22:32,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 140 transitions, 292 flow [2023-11-06 22:22:32,883 INFO L124 PetriNetUnfolderBase]: 3/140 cut-off events. [2023-11-06 22:22:32,883 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:22:32,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 140 events. 3/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 102 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2023-11-06 22:22:32,888 INFO L119 LiptonReduction]: Number of co-enabled transitions 4536 [2023-11-06 22:22:38,281 INFO L134 LiptonReduction]: Checked pairs total: 15952 [2023-11-06 22:22:38,281 INFO L136 LiptonReduction]: Total number of compositions: 121 [2023-11-06 22:22:38,299 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:22:38,307 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;@51566aa, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:22:38,307 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-06 22:22:38,312 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:22:38,313 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-06 22:22:38,313 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:22:38,313 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:22:38,314 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:22:38,315 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-06 22:22:38,321 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:38,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1579998204, now seen corresponding path program 1 times [2023-11-06 22:22:38,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:38,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821613212] [2023-11-06 22:22:38,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:38,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:38,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:22:38,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:38,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821613212] [2023-11-06 22:22:38,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821613212] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:38,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:38,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:22:38,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542012535] [2023-11-06 22:22:38,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:38,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:22:38,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:38,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:22:38,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:22:38,837 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 265 [2023-11-06 22:22:38,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 36 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:38,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:22:38,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 265 [2023-11-06 22:22:38,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:22:41,452 INFO L124 PetriNetUnfolderBase]: 9717/13507 cut-off events. [2023-11-06 22:22:41,453 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2023-11-06 22:22:41,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27281 conditions, 13507 events. 9717/13507 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 571. Compared 73535 event pairs, 2763 based on Foata normal form. 0/10178 useless extension candidates. Maximal degree in co-relation 27269. Up to 11755 conditions per place. [2023-11-06 22:22:41,601 INFO L140 encePairwiseOnDemand]: 251/265 looper letters, 49 selfloop transitions, 5 changer transitions 0/57 dead transitions. [2023-11-06 22:22:41,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 57 transitions, 243 flow [2023-11-06 22:22:41,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:22:41,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:22:41,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 412 transitions. [2023-11-06 22:22:41,627 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5182389937106918 [2023-11-06 22:22:41,628 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 412 transitions. [2023-11-06 22:22:41,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 412 transitions. [2023-11-06 22:22:41,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:22:41,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 412 transitions. [2023-11-06 22:22:41,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:41,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 265.0) internal successors, (1060), 4 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:41,653 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 265.0) internal successors, (1060), 4 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:41,656 INFO L175 Difference]: Start difference. First operand has 48 places, 36 transitions, 84 flow. Second operand 3 states and 412 transitions. [2023-11-06 22:22:41,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 57 transitions, 243 flow [2023-11-06 22:22:41,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 57 transitions, 236 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:22:41,668 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 125 flow [2023-11-06 22:22:41,671 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-11-06 22:22:41,676 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2023-11-06 22:22:41,676 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 125 flow [2023-11-06 22:22:41,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:41,677 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:22:41,677 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:22:41,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:22:41,678 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-06 22:22:41,680 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:41,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1060113171, now seen corresponding path program 1 times [2023-11-06 22:22:41,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:41,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038285661] [2023-11-06 22:22:41,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:41,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:41,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:22:41,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:41,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038285661] [2023-11-06 22:22:41,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038285661] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:41,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:41,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:22:41,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293276856] [2023-11-06 22:22:41,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:41,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:22:41,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:41,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:22:41,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:22:41,936 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 265 [2023-11-06 22:22:41,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 125 flow. Second operand has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:41,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:22:41,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 265 [2023-11-06 22:22:41,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:22:43,781 INFO L124 PetriNetUnfolderBase]: 6207/8605 cut-off events. [2023-11-06 22:22:43,782 INFO L125 PetriNetUnfolderBase]: For 475/475 co-relation queries the response was YES. [2023-11-06 22:22:43,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20912 conditions, 8605 events. 6207/8605 cut-off events. For 475/475 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 44342 event pairs, 1715 based on Foata normal form. 0/7450 useless extension candidates. Maximal degree in co-relation 20901. Up to 6852 conditions per place. [2023-11-06 22:22:43,882 INFO L140 encePairwiseOnDemand]: 256/265 looper letters, 45 selfloop transitions, 5 changer transitions 0/53 dead transitions. [2023-11-06 22:22:43,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 53 transitions, 251 flow [2023-11-06 22:22:43,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:22:43,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:22:43,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 518 transitions. [2023-11-06 22:22:43,886 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48867924528301887 [2023-11-06 22:22:43,887 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 518 transitions. [2023-11-06 22:22:43,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 518 transitions. [2023-11-06 22:22:43,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:22:43,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 518 transitions. [2023-11-06 22:22:43,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 129.5) internal successors, (518), 4 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:43,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 265.0) internal successors, (1325), 5 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:43,900 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 265.0) internal successors, (1325), 5 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:43,900 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 125 flow. Second operand 4 states and 518 transitions. [2023-11-06 22:22:43,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 53 transitions, 251 flow [2023-11-06 22:22:43,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 53 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:22:43,909 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 114 flow [2023-11-06 22:22:43,915 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=114, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2023-11-06 22:22:43,916 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-11-06 22:22:43,916 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 114 flow [2023-11-06 22:22:43,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:43,917 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:22:43,917 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:22:43,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:22:43,918 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-06 22:22:43,921 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:43,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1060113172, now seen corresponding path program 1 times [2023-11-06 22:22:43,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:43,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053743545] [2023-11-06 22:22:43,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:43,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:44,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:22:44,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:44,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053743545] [2023-11-06 22:22:44,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053743545] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:44,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:44,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:22:44,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496300859] [2023-11-06 22:22:44,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:44,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:22:44,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:44,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:22:44,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:22:44,172 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 265 [2023-11-06 22:22:44,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:44,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:22:44,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 265 [2023-11-06 22:22:44,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:22:45,586 INFO L124 PetriNetUnfolderBase]: 4260/5936 cut-off events. [2023-11-06 22:22:45,586 INFO L125 PetriNetUnfolderBase]: For 1558/1558 co-relation queries the response was YES. [2023-11-06 22:22:45,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14241 conditions, 5936 events. 4260/5936 cut-off events. For 1558/1558 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 29531 event pairs, 1261 based on Foata normal form. 0/5697 useless extension candidates. Maximal degree in co-relation 14229. Up to 2277 conditions per place. [2023-11-06 22:22:45,637 INFO L140 encePairwiseOnDemand]: 256/265 looper letters, 61 selfloop transitions, 9 changer transitions 0/73 dead transitions. [2023-11-06 22:22:45,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 73 transitions, 348 flow [2023-11-06 22:22:45,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:22:45,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:22:45,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 538 transitions. [2023-11-06 22:22:45,641 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5075471698113208 [2023-11-06 22:22:45,641 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 538 transitions. [2023-11-06 22:22:45,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 538 transitions. [2023-11-06 22:22:45,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:22:45,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 538 transitions. [2023-11-06 22:22:45,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 134.5) internal successors, (538), 4 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:45,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 265.0) internal successors, (1325), 5 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:45,649 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 265.0) internal successors, (1325), 5 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:45,650 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 114 flow. Second operand 4 states and 538 transitions. [2023-11-06 22:22:45,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 73 transitions, 348 flow [2023-11-06 22:22:45,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 73 transitions, 342 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:22:45,657 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 166 flow [2023-11-06 22:22:45,657 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-11-06 22:22:45,659 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2023-11-06 22:22:45,659 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 166 flow [2023-11-06 22:22:45,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:45,660 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:22:45,660 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:22:45,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:22:45,666 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-06 22:22:45,667 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:45,667 INFO L85 PathProgramCache]: Analyzing trace with hash 166518801, now seen corresponding path program 1 times [2023-11-06 22:22:45,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:45,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662449685] [2023-11-06 22:22:45,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:45,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:45,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:22:45,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:45,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662449685] [2023-11-06 22:22:45,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662449685] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:45,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:45,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:22:45,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772711122] [2023-11-06 22:22:45,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:45,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:22:45,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:45,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:22:45,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:22:45,885 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 265 [2023-11-06 22:22:45,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 166 flow. Second operand has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 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) [2023-11-06 22:22:45,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:22:45,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 265 [2023-11-06 22:22:45,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:22:46,890 INFO L124 PetriNetUnfolderBase]: 3939/5429 cut-off events. [2023-11-06 22:22:46,890 INFO L125 PetriNetUnfolderBase]: For 3249/3249 co-relation queries the response was YES. [2023-11-06 22:22:46,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14854 conditions, 5429 events. 3939/5429 cut-off events. For 3249/3249 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 26636 event pairs, 1217 based on Foata normal form. 0/5400 useless extension candidates. Maximal degree in co-relation 14841. Up to 2277 conditions per place. [2023-11-06 22:22:46,941 INFO L140 encePairwiseOnDemand]: 256/265 looper letters, 71 selfloop transitions, 13 changer transitions 4/91 dead transitions. [2023-11-06 22:22:46,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 91 transitions, 474 flow [2023-11-06 22:22:46,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:22:46,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:22:46,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 672 transitions. [2023-11-06 22:22:46,944 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5071698113207547 [2023-11-06 22:22:46,945 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 672 transitions. [2023-11-06 22:22:46,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 672 transitions. [2023-11-06 22:22:46,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:22:46,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 672 transitions. [2023-11-06 22:22:46,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 134.4) internal successors, (672), 5 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:46,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 265.0) internal successors, (1590), 6 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:46,953 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 265.0) internal successors, (1590), 6 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:46,953 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 166 flow. Second operand 5 states and 672 transitions. [2023-11-06 22:22:46,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 91 transitions, 474 flow [2023-11-06 22:22:46,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 91 transitions, 456 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-11-06 22:22:46,963 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 190 flow [2023-11-06 22:22:46,963 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=190, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2023-11-06 22:22:46,964 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 2 predicate places. [2023-11-06 22:22:46,964 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 190 flow [2023-11-06 22:22:46,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 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) [2023-11-06 22:22:46,965 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:22:46,965 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:22:46,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:22:46,966 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-06 22:22:46,966 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:46,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1610215440, now seen corresponding path program 1 times [2023-11-06 22:22:46,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:46,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653253669] [2023-11-06 22:22:46,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:46,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:47,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:22:47,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:47,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653253669] [2023-11-06 22:22:47,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653253669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:47,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:47,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:22:47,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016785693] [2023-11-06 22:22:47,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:47,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:22:47,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:47,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:22:47,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:22:47,179 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 265 [2023-11-06 22:22:47,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 190 flow. Second operand has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:47,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:22:47,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 265 [2023-11-06 22:22:47,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:22:48,126 INFO L124 PetriNetUnfolderBase]: 3912/5382 cut-off events. [2023-11-06 22:22:48,127 INFO L125 PetriNetUnfolderBase]: For 3955/3955 co-relation queries the response was YES. [2023-11-06 22:22:48,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15085 conditions, 5382 events. 3912/5382 cut-off events. For 3955/3955 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 26414 event pairs, 1217 based on Foata normal form. 16/5385 useless extension candidates. Maximal degree in co-relation 15071. Up to 2277 conditions per place. [2023-11-06 22:22:48,154 INFO L140 encePairwiseOnDemand]: 256/265 looper letters, 0 selfloop transitions, 0 changer transitions 83/83 dead transitions. [2023-11-06 22:22:48,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 83 transitions, 426 flow [2023-11-06 22:22:48,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:22:48,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:22:48,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 780 transitions. [2023-11-06 22:22:48,159 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49056603773584906 [2023-11-06 22:22:48,160 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 780 transitions. [2023-11-06 22:22:48,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 780 transitions. [2023-11-06 22:22:48,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:22:48,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 780 transitions. [2023-11-06 22:22:48,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 130.0) internal successors, (780), 6 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:48,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 265.0) internal successors, (1855), 7 states have internal predecessors, (1855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:48,170 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 265.0) internal successors, (1855), 7 states have internal predecessors, (1855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:48,171 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 190 flow. Second operand 6 states and 780 transitions. [2023-11-06 22:22:48,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 83 transitions, 426 flow [2023-11-06 22:22:48,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 83 transitions, 371 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-06 22:22:48,291 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2023-11-06 22:22:48,291 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2023-11-06 22:22:48,292 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-11-06 22:22:48,293 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2023-11-06 22:22:48,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:48,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-06 22:22:48,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-06 22:22:48,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-06 22:22:48,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-06 22:22:48,299 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-06 22:22:48,299 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-06 22:22:48,299 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-06 22:22:48,299 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-06 22:22:48,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-06 22:22:48,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-06 22:22:48,306 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-06 22:22:48,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-06 22:22:48,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-06 22:22:48,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-06 22:22:48,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-06 22:22:48,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-06 22:22:48,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-06 22:22:48,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-06 22:22:48,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-06 22:22:48,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-06 22:22:48,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:22:48,311 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-06 22:22:48,320 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:22:48,320 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:22:48,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:22:48 BasicIcfg [2023-11-06 22:22:48,327 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:22:48,328 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:22:48,328 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:22:48,329 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:22:48,329 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:22:32" (3/4) ... [2023-11-06 22:22:48,331 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:22:48,335 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-06 22:22:48,335 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-06 22:22:48,335 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-06 22:22:48,336 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-06 22:22:48,344 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-06 22:22:48,344 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-06 22:22:48,345 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:22:48,345 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:22:48,446 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e57f3b-52c6-4861-83fd-6711bc515dd5/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:22:48,447 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e57f3b-52c6-4861-83fd-6711bc515dd5/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:22:48,447 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:22:48,448 INFO L158 Benchmark]: Toolchain (without parser) took 18036.65ms. Allocated memory was 165.7MB in the beginning and 788.5MB in the end (delta: 622.9MB). Free memory was 120.7MB in the beginning and 418.7MB in the end (delta: -298.0MB). Peak memory consumption was 326.1MB. Max. memory is 16.1GB. [2023-11-06 22:22:48,448 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 119.5MB. Free memory was 65.7MB in the beginning and 65.6MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:22:48,449 INFO L158 Benchmark]: CACSL2BoogieTranslator took 989.12ms. Allocated memory is still 165.7MB. Free memory was 120.3MB in the beginning and 96.4MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-06 22:22:48,449 INFO L158 Benchmark]: Boogie Procedure Inliner took 127.52ms. Allocated memory is still 165.7MB. Free memory was 96.4MB in the beginning and 93.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:22:48,450 INFO L158 Benchmark]: Boogie Preprocessor took 78.34ms. Allocated memory is still 165.7MB. Free memory was 93.9MB in the beginning and 91.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:22:48,450 INFO L158 Benchmark]: RCFGBuilder took 962.11ms. Allocated memory is still 165.7MB. Free memory was 91.8MB in the beginning and 100.5MB in the end (delta: -8.7MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2023-11-06 22:22:48,451 INFO L158 Benchmark]: TraceAbstraction took 15751.15ms. Allocated memory was 165.7MB in the beginning and 788.5MB in the end (delta: 622.9MB). Free memory was 99.8MB in the beginning and 421.8MB in the end (delta: -322.1MB). Peak memory consumption was 537.0MB. Max. memory is 16.1GB. [2023-11-06 22:22:48,451 INFO L158 Benchmark]: Witness Printer took 119.16ms. Allocated memory is still 788.5MB. Free memory was 421.8MB in the beginning and 418.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:22:48,455 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 119.5MB. Free memory was 65.7MB in the beginning and 65.6MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 989.12ms. Allocated memory is still 165.7MB. Free memory was 120.3MB in the beginning and 96.4MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 127.52ms. Allocated memory is still 165.7MB. Free memory was 96.4MB in the beginning and 93.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.34ms. Allocated memory is still 165.7MB. Free memory was 93.9MB in the beginning and 91.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 962.11ms. Allocated memory is still 165.7MB. Free memory was 91.8MB in the beginning and 100.5MB in the end (delta: -8.7MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * TraceAbstraction took 15751.15ms. Allocated memory was 165.7MB in the beginning and 788.5MB in the end (delta: 622.9MB). Free memory was 99.8MB in the beginning and 421.8MB in the end (delta: -322.1MB). Peak memory consumption was 537.0MB. Max. memory is 16.1GB. * Witness Printer took 119.16ms. Allocated memory is still 788.5MB. Free memory was 421.8MB in the beginning and 418.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.5s, 150 PlacesBefore, 48 PlacesAfterwards, 140 TransitionsBefore, 36 TransitionsAfterwards, 4536 CoEnabledTransitionPairs, 7 FixpointIterations, 42 TrivialSequentialCompositions, 65 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 121 TotalNumberOfCompositions, 15952 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5593, independent: 5238, independent conditional: 0, independent unconditional: 5238, dependent: 355, dependent conditional: 0, dependent unconditional: 355, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2438, independent: 2374, independent conditional: 0, independent unconditional: 2374, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5593, independent: 2864, independent conditional: 0, independent unconditional: 2864, dependent: 291, dependent conditional: 0, dependent unconditional: 291, unknown: 2438, unknown conditional: 0, unknown unconditional: 2438] , Statistics on independence cache: Total cache size (in pairs): 188, Positive cache size: 165, Positive conditional cache size: 0, Positive unconditional cache size: 165, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 815]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 815]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 848]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 848]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 186 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 15.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 282 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 262 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 75 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 444 IncrementalHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 75 mSolverCounterUnsat, 1 mSDtfsCounter, 444 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=190occurred 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, 0.9s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 201 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:22:48,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e57f3b-52c6-4861-83fd-6711bc515dd5/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