./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe012_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac9065-2b96-470f-b392-445faebe7c63/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac9065-2b96-470f-b392-445faebe7c63/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_ddac9065-2b96-470f-b392-445faebe7c63/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac9065-2b96-470f-b392-445faebe7c63/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe012_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac9065-2b96-470f-b392-445faebe7c63/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_ddac9065-2b96-470f-b392-445faebe7c63/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 697ff70a4856546a25a8cc2eb04fc80299855e02086960ffcc9a4790310db5da --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:14:26,304 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:14:26,413 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac9065-2b96-470f-b392-445faebe7c63/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 21:14:26,425 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:14:26,426 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:14:26,475 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:14:26,476 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:14:26,477 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:14:26,478 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:14:26,483 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:14:26,485 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:14:26,486 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:14:26,486 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:14:26,488 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:14:26,488 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:14:26,489 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:14:26,489 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:14:26,490 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:14:26,490 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:14:26,491 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:14:26,491 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:14:26,492 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:14:26,492 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 21:14:26,493 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:14:26,493 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:14:26,493 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:14:26,494 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:14:26,495 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:14:26,495 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:14:26,496 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:14:26,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:14:26,497 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:14:26,498 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:14:26,498 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:14:26,498 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:14:26,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:14:26,499 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:14:26,499 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:14:26,499 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:14:26,500 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:14:26,506 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:14:26,507 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_ddac9065-2b96-470f-b392-445faebe7c63/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac9065-2b96-470f-b392-445faebe7c63/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 697ff70a4856546a25a8cc2eb04fc80299855e02086960ffcc9a4790310db5da [2023-11-06 21:14:26,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:14:26,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:14:26,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:14:26,841 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:14:26,842 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:14:26,843 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac9065-2b96-470f-b392-445faebe7c63/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-wmm/safe012_power.opt.i [2023-11-06 21:14:29,747 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:14:30,184 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:14:30,187 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac9065-2b96-470f-b392-445faebe7c63/sv-benchmarks/c/pthread-wmm/safe012_power.opt.i [2023-11-06 21:14:30,221 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac9065-2b96-470f-b392-445faebe7c63/bin/uautomizer-verify-WvqO1wxjHP/data/4e667a4f0/319f6371fd144a7d8b570383d6fe03c0/FLAG7d5ced365 [2023-11-06 21:14:30,239 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac9065-2b96-470f-b392-445faebe7c63/bin/uautomizer-verify-WvqO1wxjHP/data/4e667a4f0/319f6371fd144a7d8b570383d6fe03c0 [2023-11-06 21:14:30,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:14:30,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:14:30,251 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:14:30,252 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:14:30,257 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:14:30,258 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:14:30" (1/1) ... [2023-11-06 21:14:30,259 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24f04b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:30, skipping insertion in model container [2023-11-06 21:14:30,259 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:14:30" (1/1) ... [2023-11-06 21:14:30,327 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:14:30,774 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:14:30,798 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:14:30,868 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:14:30,913 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:14:30,913 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:14:30,922 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:14:30,923 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:30 WrapperNode [2023-11-06 21:14:30,923 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:14:30,924 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:14:30,925 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:14:30,925 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:14:30,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:30" (1/1) ... [2023-11-06 21:14:30,964 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:30" (1/1) ... [2023-11-06 21:14:31,009 INFO L138 Inliner]: procedures = 176, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 189 [2023-11-06 21:14:31,009 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:14:31,010 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:14:31,010 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:14:31,011 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:14:31,022 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:30" (1/1) ... [2023-11-06 21:14:31,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:30" (1/1) ... [2023-11-06 21:14:31,028 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:30" (1/1) ... [2023-11-06 21:14:31,028 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:30" (1/1) ... [2023-11-06 21:14:31,046 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:30" (1/1) ... [2023-11-06 21:14:31,063 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:30" (1/1) ... [2023-11-06 21:14:31,066 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:30" (1/1) ... [2023-11-06 21:14:31,069 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:30" (1/1) ... [2023-11-06 21:14:31,074 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:14:31,075 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:14:31,075 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:14:31,076 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:14:31,077 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:30" (1/1) ... [2023-11-06 21:14:31,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:14:31,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac9065-2b96-470f-b392-445faebe7c63/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:14:31,124 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac9065-2b96-470f-b392-445faebe7c63/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:14:31,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac9065-2b96-470f-b392-445faebe7c63/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:14:31,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 21:14:31,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:14:31,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 21:14:31,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:14:31,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:14:31,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:14:31,168 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-06 21:14:31,168 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-06 21:14:31,168 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-06 21:14:31,168 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-06 21:14:31,168 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-06 21:14:31,168 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-06 21:14:31,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:14:31,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 21:14:31,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:14:31,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:14:31,172 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 21:14:31,406 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:14:31,409 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:14:32,094 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:14:32,441 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:14:32,441 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 21:14:32,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:14:32 BoogieIcfgContainer [2023-11-06 21:14:32,445 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:14:32,448 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:14:32,448 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:14:32,452 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:14:32,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:14:30" (1/3) ... [2023-11-06 21:14:32,453 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4000f17b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:14:32, skipping insertion in model container [2023-11-06 21:14:32,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:30" (2/3) ... [2023-11-06 21:14:32,455 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4000f17b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:14:32, skipping insertion in model container [2023-11-06 21:14:32,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:14:32" (3/3) ... [2023-11-06 21:14:32,458 INFO L112 eAbstractionObserver]: Analyzing ICFG safe012_power.opt.i [2023-11-06 21:14:32,466 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 21:14:32,477 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:14:32,477 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-06 21:14:32,477 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:14:32,602 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 21:14:32,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 139 transitions, 290 flow [2023-11-06 21:14:32,703 INFO L124 PetriNetUnfolderBase]: 3/136 cut-off events. [2023-11-06 21:14:32,703 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:14:32,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 136 events. 3/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 81. Up to 2 conditions per place. [2023-11-06 21:14:32,709 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 139 transitions, 290 flow [2023-11-06 21:14:32,714 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 136 transitions, 281 flow [2023-11-06 21:14:32,718 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 21:14:32,728 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 136 transitions, 281 flow [2023-11-06 21:14:32,731 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 136 transitions, 281 flow [2023-11-06 21:14:32,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 136 transitions, 281 flow [2023-11-06 21:14:32,765 INFO L124 PetriNetUnfolderBase]: 3/136 cut-off events. [2023-11-06 21:14:32,765 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:14:32,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 136 events. 3/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 81. Up to 2 conditions per place. [2023-11-06 21:14:32,769 INFO L119 LiptonReduction]: Number of co-enabled transitions 2724 [2023-11-06 21:14:42,150 INFO L134 LiptonReduction]: Checked pairs total: 8939 [2023-11-06 21:14:42,151 INFO L136 LiptonReduction]: Total number of compositions: 120 [2023-11-06 21:14:42,166 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:14:42,173 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;@5069c745, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:14:42,173 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-06 21:14:42,178 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 21:14:42,178 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-06 21:14:42,179 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:14:42,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:14:42,180 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 21:14:42,180 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-06 21:14:42,185 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:42,185 INFO L85 PathProgramCache]: Analyzing trace with hash 820861032, now seen corresponding path program 1 times [2023-11-06 21:14:42,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:42,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42761173] [2023-11-06 21:14:42,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:42,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:42,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:42,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:14:42,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:42,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42761173] [2023-11-06 21:14:42,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42761173] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:42,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:42,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 21:14:42,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035206580] [2023-11-06 21:14:42,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:42,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:14:42,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:42,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:14:42,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:14:42,630 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 259 [2023-11-06 21:14:42,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:42,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:14:42,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 259 [2023-11-06 21:14:42,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:14:43,329 INFO L124 PetriNetUnfolderBase]: 1065/1712 cut-off events. [2023-11-06 21:14:43,329 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-06 21:14:43,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3461 conditions, 1712 events. 1065/1712 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 8754 event pairs, 461 based on Foata normal form. 114/1327 useless extension candidates. Maximal degree in co-relation 3450. Up to 1539 conditions per place. [2023-11-06 21:14:43,357 INFO L140 encePairwiseOnDemand]: 247/259 looper letters, 36 selfloop transitions, 4 changer transitions 0/42 dead transitions. [2023-11-06 21:14:43,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 42 transitions, 179 flow [2023-11-06 21:14:43,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:14:43,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:14:43,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2023-11-06 21:14:43,388 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.510939510939511 [2023-11-06 21:14:43,389 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2023-11-06 21:14:43,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2023-11-06 21:14:43,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:14:43,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2023-11-06 21:14:43,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:43,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:43,418 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:43,421 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 67 flow. Second operand 3 states and 397 transitions. [2023-11-06 21:14:43,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 42 transitions, 179 flow [2023-11-06 21:14:43,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 42 transitions, 174 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 21:14:43,429 INFO L231 Difference]: Finished difference. Result has 38 places, 31 transitions, 100 flow [2023-11-06 21:14:43,432 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=38, PETRI_TRANSITIONS=31} [2023-11-06 21:14:43,440 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2023-11-06 21:14:43,441 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 31 transitions, 100 flow [2023-11-06 21:14:43,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:43,441 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:14:43,442 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:14:43,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:14:43,442 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-06 21:14:43,444 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:43,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1065680558, now seen corresponding path program 1 times [2023-11-06 21:14:43,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:43,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665348832] [2023-11-06 21:14:43,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:43,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:43,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:14:43,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:43,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665348832] [2023-11-06 21:14:43,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665348832] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:43,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:43,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:14:43,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725900445] [2023-11-06 21:14:43,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:43,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:14:43,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:43,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:14:43,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:14:43,731 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 259 [2023-11-06 21:14:43,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 100 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 21:14:43,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:14:43,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 259 [2023-11-06 21:14:43,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:14:44,250 INFO L124 PetriNetUnfolderBase]: 749/1212 cut-off events. [2023-11-06 21:14:44,251 INFO L125 PetriNetUnfolderBase]: For 108/108 co-relation queries the response was YES. [2023-11-06 21:14:44,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2981 conditions, 1212 events. 749/1212 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 5659 event pairs, 269 based on Foata normal form. 0/1041 useless extension candidates. Maximal degree in co-relation 2970. Up to 1038 conditions per place. [2023-11-06 21:14:44,265 INFO L140 encePairwiseOnDemand]: 252/259 looper letters, 33 selfloop transitions, 4 changer transitions 0/39 dead transitions. [2023-11-06 21:14:44,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 39 transitions, 188 flow [2023-11-06 21:14:44,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:14:44,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 21:14:44,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 504 transitions. [2023-11-06 21:14:44,270 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4864864864864865 [2023-11-06 21:14:44,271 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 504 transitions. [2023-11-06 21:14:44,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 504 transitions. [2023-11-06 21:14:44,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:14:44,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 504 transitions. [2023-11-06 21:14:44,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:44,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 259.0) internal successors, (1295), 5 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:44,286 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 259.0) internal successors, (1295), 5 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:44,286 INFO L175 Difference]: Start difference. First operand has 38 places, 31 transitions, 100 flow. Second operand 4 states and 504 transitions. [2023-11-06 21:14:44,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 39 transitions, 188 flow [2023-11-06 21:14:44,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 39 transitions, 184 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:14:44,289 INFO L231 Difference]: Finished difference. Result has 37 places, 28 transitions, 92 flow [2023-11-06 21:14:44,290 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=92, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2023-11-06 21:14:44,291 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2023-11-06 21:14:44,291 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 92 flow [2023-11-06 21:14:44,292 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 21:14:44,292 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:14:44,292 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:14:44,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:14:44,293 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-06 21:14:44,294 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:44,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1065680557, now seen corresponding path program 1 times [2023-11-06 21:14:44,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:44,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404481485] [2023-11-06 21:14:44,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:44,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:44,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:14:44,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:44,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404481485] [2023-11-06 21:14:44,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404481485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:44,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:44,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:14:44,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235154695] [2023-11-06 21:14:44,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:44,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:14:44,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:44,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:14:44,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:14:44,533 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 259 [2023-11-06 21:14:44,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 92 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 21:14:44,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:14:44,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 259 [2023-11-06 21:14:44,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:14:44,823 INFO L124 PetriNetUnfolderBase]: 306/535 cut-off events. [2023-11-06 21:14:44,824 INFO L125 PetriNetUnfolderBase]: For 151/151 co-relation queries the response was YES. [2023-11-06 21:14:44,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1321 conditions, 535 events. 306/535 cut-off events. For 151/151 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2071 event pairs, 107 based on Foata normal form. 26/538 useless extension candidates. Maximal degree in co-relation 1309. Up to 182 conditions per place. [2023-11-06 21:14:44,829 INFO L140 encePairwiseOnDemand]: 251/259 looper letters, 39 selfloop transitions, 7 changer transitions 3/51 dead transitions. [2023-11-06 21:14:44,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 51 transitions, 248 flow [2023-11-06 21:14:44,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:14:44,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 21:14:44,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 517 transitions. [2023-11-06 21:14:44,838 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49903474903474904 [2023-11-06 21:14:44,838 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 517 transitions. [2023-11-06 21:14:44,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 517 transitions. [2023-11-06 21:14:44,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:14:44,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 517 transitions. [2023-11-06 21:14:44,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 129.25) internal successors, (517), 4 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:44,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 259.0) internal successors, (1295), 5 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:44,852 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 259.0) internal successors, (1295), 5 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:44,853 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 92 flow. Second operand 4 states and 517 transitions. [2023-11-06 21:14:44,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 51 transitions, 248 flow [2023-11-06 21:14:44,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 51 transitions, 243 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 21:14:44,858 INFO L231 Difference]: Finished difference. Result has 39 places, 28 transitions, 115 flow [2023-11-06 21:14:44,858 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=115, PETRI_PLACES=39, PETRI_TRANSITIONS=28} [2023-11-06 21:14:44,860 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 1 predicate places. [2023-11-06 21:14:44,860 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 115 flow [2023-11-06 21:14:44,861 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 21:14:44,861 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:14:44,862 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:14:44,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:14:44,868 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-06 21:14:44,869 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:44,869 INFO L85 PathProgramCache]: Analyzing trace with hash 624114044, now seen corresponding path program 1 times [2023-11-06 21:14:44,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:44,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376240880] [2023-11-06 21:14:44,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:44,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:45,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:14:45,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:45,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376240880] [2023-11-06 21:14:45,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376240880] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:45,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:45,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:14:45,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96421381] [2023-11-06 21:14:45,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:45,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:14:45,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:45,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:14:45,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:14:45,171 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 259 [2023-11-06 21:14:45,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 115 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 21:14:45,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:14:45,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 259 [2023-11-06 21:14:45,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:14:45,377 INFO L124 PetriNetUnfolderBase]: 250/419 cut-off events. [2023-11-06 21:14:45,377 INFO L125 PetriNetUnfolderBase]: For 312/312 co-relation queries the response was YES. [2023-11-06 21:14:45,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1187 conditions, 419 events. 250/419 cut-off events. For 312/312 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1566 event pairs, 91 based on Foata normal form. 15/429 useless extension candidates. Maximal degree in co-relation 1174. Up to 182 conditions per place. [2023-11-06 21:14:45,379 INFO L140 encePairwiseOnDemand]: 251/259 looper letters, 0 selfloop transitions, 0 changer transitions 41/41 dead transitions. [2023-11-06 21:14:45,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 41 transitions, 209 flow [2023-11-06 21:14:45,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 21:14:45,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 21:14:45,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 623 transitions. [2023-11-06 21:14:45,383 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4810810810810811 [2023-11-06 21:14:45,383 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 623 transitions. [2023-11-06 21:14:45,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 623 transitions. [2023-11-06 21:14:45,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:14:45,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 623 transitions. [2023-11-06 21:14:45,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 124.6) internal successors, (623), 5 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:45,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 259.0) internal successors, (1554), 6 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:45,392 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 259.0) internal successors, (1554), 6 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:45,392 INFO L175 Difference]: Start difference. First operand has 39 places, 28 transitions, 115 flow. Second operand 5 states and 623 transitions. [2023-11-06 21:14:45,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 41 transitions, 209 flow [2023-11-06 21:14:45,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 41 transitions, 185 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-11-06 21:14:45,395 INFO L231 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2023-11-06 21:14:45,396 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2023-11-06 21:14:45,396 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -6 predicate places. [2023-11-06 21:14:45,397 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 0 transitions, 0 flow [2023-11-06 21:14:45,397 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 21:14:45,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-06 21:14:45,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-06 21:14:45,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-06 21:14:45,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-06 21:14:45,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-06 21:14:45,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-06 21:14:45,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-06 21:14:45,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-06 21:14:45,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-06 21:14:45,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-06 21:14:45,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-06 21:14:45,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-06 21:14:45,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-06 21:14:45,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-06 21:14:45,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-06 21:14:45,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 21:14:45,405 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-06 21:14:45,411 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 21:14:45,411 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 21:14:45,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:14:45 BasicIcfg [2023-11-06 21:14:45,415 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 21:14:45,416 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:14:45,416 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:14:45,416 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:14:45,417 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:14:32" (3/4) ... [2023-11-06 21:14:45,419 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 21:14:45,422 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-06 21:14:45,422 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-06 21:14:45,422 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-06 21:14:45,429 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2023-11-06 21:14:45,429 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-06 21:14:45,430 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-06 21:14:45,430 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 21:14:45,491 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac9065-2b96-470f-b392-445faebe7c63/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 21:14:45,491 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac9065-2b96-470f-b392-445faebe7c63/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 21:14:45,491 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:14:45,492 INFO L158 Benchmark]: Toolchain (without parser) took 15245.63ms. Allocated memory was 153.1MB in the beginning and 230.7MB in the end (delta: 77.6MB). Free memory was 120.9MB in the beginning and 144.2MB in the end (delta: -23.3MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. [2023-11-06 21:14:45,492 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 125.8MB. Free memory is still 98.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:14:45,493 INFO L158 Benchmark]: CACSL2BoogieTranslator took 672.10ms. Allocated memory is still 153.1MB. Free memory was 120.4MB in the beginning and 96.4MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-06 21:14:45,493 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.10ms. Allocated memory is still 153.1MB. Free memory was 96.4MB in the beginning and 93.6MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 21:14:45,494 INFO L158 Benchmark]: Boogie Preprocessor took 64.39ms. Allocated memory is still 153.1MB. Free memory was 93.6MB in the beginning and 91.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:14:45,494 INFO L158 Benchmark]: RCFGBuilder took 1369.78ms. Allocated memory is still 153.1MB. Free memory was 91.5MB in the beginning and 70.0MB in the end (delta: 21.5MB). Peak memory consumption was 37.0MB. Max. memory is 16.1GB. [2023-11-06 21:14:45,495 INFO L158 Benchmark]: TraceAbstraction took 12967.37ms. Allocated memory was 153.1MB in the beginning and 230.7MB in the end (delta: 77.6MB). Free memory was 70.0MB in the beginning and 148.4MB in the end (delta: -78.4MB). Peak memory consumption was 89.1MB. Max. memory is 16.1GB. [2023-11-06 21:14:45,495 INFO L158 Benchmark]: Witness Printer took 75.52ms. Allocated memory is still 230.7MB. Free memory was 148.4MB in the beginning and 144.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 21:14:45,497 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 125.8MB. Free memory is still 98.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 672.10ms. Allocated memory is still 153.1MB. Free memory was 120.4MB in the beginning and 96.4MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.10ms. Allocated memory is still 153.1MB. Free memory was 96.4MB in the beginning and 93.6MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.39ms. Allocated memory is still 153.1MB. Free memory was 93.6MB in the beginning and 91.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1369.78ms. Allocated memory is still 153.1MB. Free memory was 91.5MB in the beginning and 70.0MB in the end (delta: 21.5MB). Peak memory consumption was 37.0MB. Max. memory is 16.1GB. * TraceAbstraction took 12967.37ms. Allocated memory was 153.1MB in the beginning and 230.7MB in the end (delta: 77.6MB). Free memory was 70.0MB in the beginning and 148.4MB in the end (delta: -78.4MB). Peak memory consumption was 89.1MB. Max. memory is 16.1GB. * Witness Printer took 75.52ms. Allocated memory is still 230.7MB. Free memory was 148.4MB in the beginning and 144.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.4s, 143 PlacesBefore, 38 PlacesAfterwards, 136 TransitionsBefore, 29 TransitionsAfterwards, 2724 CoEnabledTransitionPairs, 7 FixpointIterations, 57 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 120 TotalNumberOfCompositions, 8939 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3503, independent: 3230, independent conditional: 0, independent unconditional: 3230, dependent: 273, dependent conditional: 0, dependent unconditional: 273, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1489, independent: 1443, independent conditional: 0, independent unconditional: 1443, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3503, independent: 1787, independent conditional: 0, independent unconditional: 1787, dependent: 227, dependent conditional: 0, dependent unconditional: 227, unknown: 1489, unknown conditional: 0, unknown unconditional: 1489] , Statistics on independence cache: Total cache size (in pairs): 167, Positive cache size: 143, Positive conditional cache size: 0, Positive unconditional cache size: 143, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 770]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 770]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 835]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 835]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 169 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 12.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 119 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 99 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 246 IncrementalHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 1 mSDtfsCounter, 246 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 21:14:45,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddac9065-2b96-470f-b392-445faebe7c63/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