./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix054_pso.opt_rmo.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_ac135796-daf9-48ce-979b-81646c5960a4/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac135796-daf9-48ce-979b-81646c5960a4/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac135796-daf9-48ce-979b-81646c5960a4/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac135796-daf9-48ce-979b-81646c5960a4/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix054_pso.opt_rmo.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac135796-daf9-48ce-979b-81646c5960a4/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac135796-daf9-48ce-979b-81646c5960a4/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4b807ac1723767f46eb51e856f642cbeec29c757d6219d60986235d902b15355 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:46:53,224 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:46:53,336 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac135796-daf9-48ce-979b-81646c5960a4/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:46:53,347 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:46:53,350 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:46:53,391 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:46:53,393 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:46:53,394 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:46:53,395 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:46:53,400 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:46:53,402 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:46:53,402 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:46:53,403 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:46:53,405 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:46:53,405 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:46:53,405 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:46:53,406 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:46:53,406 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:46:53,407 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:46:53,407 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:46:53,407 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:46:53,408 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:46:53,408 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:46:53,410 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:46:53,411 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:46:53,411 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:46:53,411 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:46:53,412 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:46:53,413 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:46:53,413 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:46:53,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:53,415 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:46:53,415 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:46:53,415 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:46:53,415 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:46:53,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:46:53,416 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:46:53,416 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:46:53,416 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:46:53,417 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:46:53,417 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:46:53,418 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_ac135796-daf9-48ce-979b-81646c5960a4/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac135796-daf9-48ce-979b-81646c5960a4/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b807ac1723767f46eb51e856f642cbeec29c757d6219d60986235d902b15355 [2023-11-19 07:46:53,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:46:53,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:46:53,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:46:53,749 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:46:53,749 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:46:53,751 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac135796-daf9-48ce-979b-81646c5960a4/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/mix054_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2023-11-19 07:46:56,988 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:46:57,387 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:46:57,387 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac135796-daf9-48ce-979b-81646c5960a4/sv-benchmarks/c/pthread-wmm/mix054_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2023-11-19 07:46:57,416 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac135796-daf9-48ce-979b-81646c5960a4/bin/uautomizer-verify-uCwYo4JHxu/data/82d377285/0ee67d1a7d5f4382a4bca35d3ec43583/FLAG1ce4254d7 [2023-11-19 07:46:57,430 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac135796-daf9-48ce-979b-81646c5960a4/bin/uautomizer-verify-uCwYo4JHxu/data/82d377285/0ee67d1a7d5f4382a4bca35d3ec43583 [2023-11-19 07:46:57,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:46:57,435 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:46:57,436 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:57,436 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:46:57,442 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:46:57,443 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:57" (1/1) ... [2023-11-19 07:46:57,445 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@707d02b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:57, skipping insertion in model container [2023-11-19 07:46:57,445 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:57" (1/1) ... [2023-11-19 07:46:57,509 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:46:58,047 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:58,065 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:46:58,189 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:58,255 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:46:58,256 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:46:58,266 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:46:58,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:58 WrapperNode [2023-11-19 07:46:58,268 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:58,270 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:58,271 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:46:58,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:46:58,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:58" (1/1) ... [2023-11-19 07:46:58,327 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:58" (1/1) ... [2023-11-19 07:46:58,379 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 136 [2023-11-19 07:46:58,387 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:58,388 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:46:58,389 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:46:58,389 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:46:58,401 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:58" (1/1) ... [2023-11-19 07:46:58,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:58" (1/1) ... [2023-11-19 07:46:58,419 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:58" (1/1) ... [2023-11-19 07:46:58,420 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:58" (1/1) ... [2023-11-19 07:46:58,440 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:58" (1/1) ... [2023-11-19 07:46:58,453 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:58" (1/1) ... [2023-11-19 07:46:58,456 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:58" (1/1) ... [2023-11-19 07:46:58,458 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:58" (1/1) ... [2023-11-19 07:46:58,462 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:46:58,469 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:46:58,470 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:46:58,470 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:46:58,471 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:58" (1/1) ... [2023-11-19 07:46:58,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:58,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac135796-daf9-48ce-979b-81646c5960a4/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:58,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac135796-daf9-48ce-979b-81646c5960a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:58,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac135796-daf9-48ce-979b-81646c5960a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:46:58,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:46:58,572 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:46:58,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:46:58,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:46:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:46:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 07:46:58,573 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 07:46:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 07:46:58,574 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 07:46:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:46:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:46:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:46:58,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:46:58,578 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:46:58,761 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:46:58,768 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:46:59,152 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:46:59,475 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:46:59,475 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:46:59,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:59 BoogieIcfgContainer [2023-11-19 07:46:59,481 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:46:59,486 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:46:59,487 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:46:59,490 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:46:59,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:46:57" (1/3) ... [2023-11-19 07:46:59,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@460fd402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:59, skipping insertion in model container [2023-11-19 07:46:59,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:58" (2/3) ... [2023-11-19 07:46:59,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@460fd402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:59, skipping insertion in model container [2023-11-19 07:46:59,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:59" (3/3) ... [2023-11-19 07:46:59,496 INFO L112 eAbstractionObserver]: Analyzing ICFG mix054_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2023-11-19 07:46:59,505 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:46:59,513 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:46:59,513 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-19 07:46:59,514 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:46:59,578 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:46:59,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 97 transitions, 202 flow [2023-11-19 07:46:59,706 INFO L124 PetriNetUnfolderBase]: 3/95 cut-off events. [2023-11-19 07:46:59,708 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:46:59,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 95 events. 3/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2023-11-19 07:46:59,718 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 97 transitions, 202 flow [2023-11-19 07:46:59,723 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 95 transitions, 196 flow [2023-11-19 07:46:59,728 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:46:59,752 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 95 transitions, 196 flow [2023-11-19 07:46:59,760 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 95 transitions, 196 flow [2023-11-19 07:46:59,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 95 transitions, 196 flow [2023-11-19 07:46:59,787 INFO L124 PetriNetUnfolderBase]: 3/95 cut-off events. [2023-11-19 07:46:59,788 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:46:59,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 95 events. 3/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2023-11-19 07:46:59,790 INFO L119 LiptonReduction]: Number of co-enabled transitions 1548 [2023-11-19 07:47:04,744 INFO L134 LiptonReduction]: Checked pairs total: 4513 [2023-11-19 07:47:04,745 INFO L136 LiptonReduction]: Total number of compositions: 87 [2023-11-19 07:47:04,762 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:47:04,770 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@43cd745d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:47:04,770 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-19 07:47:04,775 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:47:04,775 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-19 07:47:04,776 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:47:04,776 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:04,777 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:47:04,777 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-19 07:47:04,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:04,784 INFO L85 PathProgramCache]: Analyzing trace with hash 994701201, now seen corresponding path program 1 times [2023-11-19 07:47:04,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:04,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301136039] [2023-11-19 07:47:04,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:04,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:05,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:05,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:05,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301136039] [2023-11-19 07:47:05,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301136039] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:05,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:05,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:47:05,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433647872] [2023-11-19 07:47:05,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:05,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:47:05,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:05,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:05,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:05,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 184 [2023-11-19 07:47:05,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 19 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:05,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:05,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 184 [2023-11-19 07:47:05,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:05,443 INFO L124 PetriNetUnfolderBase]: 144/263 cut-off events. [2023-11-19 07:47:05,444 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-19 07:47:05,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 534 conditions, 263 events. 144/263 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 995 event pairs, 144 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 524. Up to 255 conditions per place. [2023-11-19 07:47:05,451 INFO L140 encePairwiseOnDemand]: 181/184 looper letters, 14 selfloop transitions, 1 changer transitions 0/17 dead transitions. [2023-11-19 07:47:05,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 17 transitions, 70 flow [2023-11-19 07:47:05,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:05,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:47:05,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2023-11-19 07:47:05,477 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4601449275362319 [2023-11-19 07:47:05,478 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 254 transitions. [2023-11-19 07:47:05,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 254 transitions. [2023-11-19 07:47:05,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:05,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 254 transitions. [2023-11-19 07:47:05,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:05,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:05,495 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:05,497 INFO L175 Difference]: Start difference. First operand has 26 places, 19 transitions, 44 flow. Second operand 3 states and 254 transitions. [2023-11-19 07:47:05,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 17 transitions, 70 flow [2023-11-19 07:47:05,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 17 transitions, 68 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:47:05,502 INFO L231 Difference]: Finished difference. Result has 24 places, 17 transitions, 40 flow [2023-11-19 07:47:05,504 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=24, PETRI_TRANSITIONS=17} [2023-11-19 07:47:05,511 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -2 predicate places. [2023-11-19 07:47:05,511 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 40 flow [2023-11-19 07:47:05,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:05,512 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:05,512 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:47:05,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:47:05,513 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-19 07:47:05,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:05,516 INFO L85 PathProgramCache]: Analyzing trace with hash 994701202, now seen corresponding path program 1 times [2023-11-19 07:47:05,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:05,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342705053] [2023-11-19 07:47:05,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:05,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:05,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:05,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:05,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:05,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342705053] [2023-11-19 07:47:05,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342705053] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:05,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:05,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:47:05,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104559207] [2023-11-19 07:47:05,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:05,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:47:05,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:05,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:05,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:05,685 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 184 [2023-11-19 07:47:05,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:05,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:05,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 184 [2023-11-19 07:47:05,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:05,799 INFO L124 PetriNetUnfolderBase]: 93/182 cut-off events. [2023-11-19 07:47:05,799 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:47:05,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 182 events. 93/182 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 638 event pairs, 44 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 364. Up to 88 conditions per place. [2023-11-19 07:47:05,802 INFO L140 encePairwiseOnDemand]: 179/184 looper letters, 21 selfloop transitions, 3 changer transitions 2/28 dead transitions. [2023-11-19 07:47:05,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 28 transitions, 116 flow [2023-11-19 07:47:05,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:05,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:47:05,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 265 transitions. [2023-11-19 07:47:05,810 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48007246376811596 [2023-11-19 07:47:05,810 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 265 transitions. [2023-11-19 07:47:05,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 265 transitions. [2023-11-19 07:47:05,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:05,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 265 transitions. [2023-11-19 07:47:05,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:05,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:05,816 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:05,817 INFO L175 Difference]: Start difference. First operand has 24 places, 17 transitions, 40 flow. Second operand 3 states and 265 transitions. [2023-11-19 07:47:05,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 28 transitions, 116 flow [2023-11-19 07:47:05,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 28 transitions, 115 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:47:05,818 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 52 flow [2023-11-19 07:47:05,819 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=26, PETRI_TRANSITIONS=17} [2023-11-19 07:47:05,820 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 0 predicate places. [2023-11-19 07:47:05,820 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 52 flow [2023-11-19 07:47:05,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:05,821 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:05,821 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:05,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:47:05,822 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-19 07:47:05,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:05,823 INFO L85 PathProgramCache]: Analyzing trace with hash 2124942780, now seen corresponding path program 1 times [2023-11-19 07:47:05,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:05,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924656849] [2023-11-19 07:47:05,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:05,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:06,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:06,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924656849] [2023-11-19 07:47:06,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924656849] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:06,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:06,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:47:06,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918814975] [2023-11-19 07:47:06,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:06,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:47:06,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:06,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:47:06,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:47:06,036 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 184 [2023-11-19 07:47:06,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 52 flow. Second operand has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:06,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:06,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 184 [2023-11-19 07:47:06,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:06,149 INFO L124 PetriNetUnfolderBase]: 80/157 cut-off events. [2023-11-19 07:47:06,150 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-11-19 07:47:06,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 157 events. 80/157 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 566 event pairs, 44 based on Foata normal form. 8/161 useless extension candidates. Maximal degree in co-relation 366. Up to 87 conditions per place. [2023-11-19 07:47:06,154 INFO L140 encePairwiseOnDemand]: 179/184 looper letters, 0 selfloop transitions, 0 changer transitions 24/24 dead transitions. [2023-11-19 07:47:06,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 24 transitions, 108 flow [2023-11-19 07:47:06,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:47:06,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:47:06,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 340 transitions. [2023-11-19 07:47:06,158 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46195652173913043 [2023-11-19 07:47:06,158 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 340 transitions. [2023-11-19 07:47:06,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 340 transitions. [2023-11-19 07:47:06,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:06,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 340 transitions. [2023-11-19 07:47:06,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:06,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 184.0) internal successors, (920), 5 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:06,166 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 184.0) internal successors, (920), 5 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:06,166 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 52 flow. Second operand 4 states and 340 transitions. [2023-11-19 07:47:06,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 24 transitions, 108 flow [2023-11-19 07:47:06,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 24 transitions, 102 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:47:06,168 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2023-11-19 07:47:06,168 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2023-11-19 07:47:06,170 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -1 predicate places. [2023-11-19 07:47:06,171 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2023-11-19 07:47:06,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:06,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-11-19 07:47:06,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-11-19 07:47:06,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-11-19 07:47:06,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-11-19 07:47:06,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2023-11-19 07:47:06,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-11-19 07:47:06,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-11-19 07:47:06,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-11-19 07:47:06,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-11-19 07:47:06,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-11-19 07:47:06,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:47:06,184 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 07:47:06,192 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:47:06,192 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:47:06,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:47:06 BasicIcfg [2023-11-19 07:47:06,198 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:47:06,199 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:47:06,199 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:47:06,199 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:47:06,200 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:59" (3/4) ... [2023-11-19 07:47:06,224 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:47:06,229 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 07:47:06,230 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 07:47:06,238 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2023-11-19 07:47:06,239 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-19 07:47:06,239 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 07:47:06,240 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:47:06,365 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac135796-daf9-48ce-979b-81646c5960a4/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:47:06,365 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac135796-daf9-48ce-979b-81646c5960a4/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:47:06,366 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:47:06,366 INFO L158 Benchmark]: Toolchain (without parser) took 8931.74ms. Allocated memory was 176.2MB in the beginning and 230.7MB in the end (delta: 54.5MB). Free memory was 143.6MB in the beginning and 192.2MB in the end (delta: -48.6MB). Peak memory consumption was 134.2MB. Max. memory is 16.1GB. [2023-11-19 07:47:06,367 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 130.0MB. Free memory is still 89.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:47:06,367 INFO L158 Benchmark]: CACSL2BoogieTranslator took 832.31ms. Allocated memory is still 176.2MB. Free memory was 143.6MB in the beginning and 120.7MB in the end (delta: 22.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 07:47:06,368 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.08ms. Allocated memory is still 176.2MB. Free memory was 120.7MB in the beginning and 118.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:47:06,368 INFO L158 Benchmark]: Boogie Preprocessor took 80.22ms. Allocated memory is still 176.2MB. Free memory was 118.1MB in the beginning and 116.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:47:06,369 INFO L158 Benchmark]: RCFGBuilder took 1012.03ms. Allocated memory is still 176.2MB. Free memory was 116.1MB in the beginning and 141.6MB in the end (delta: -25.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-19 07:47:06,369 INFO L158 Benchmark]: TraceAbstraction took 6711.66ms. Allocated memory was 176.2MB in the beginning and 230.7MB in the end (delta: 54.5MB). Free memory was 140.3MB in the beginning and 67.4MB in the end (delta: 72.8MB). Peak memory consumption was 128.2MB. Max. memory is 16.1GB. [2023-11-19 07:47:06,370 INFO L158 Benchmark]: Witness Printer took 167.07ms. Allocated memory is still 230.7MB. Free memory was 67.4MB in the beginning and 192.2MB in the end (delta: -124.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:47:06,372 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 130.0MB. Free memory is still 89.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 832.31ms. Allocated memory is still 176.2MB. Free memory was 143.6MB in the beginning and 120.7MB in the end (delta: 22.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.08ms. Allocated memory is still 176.2MB. Free memory was 120.7MB in the beginning and 118.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.22ms. Allocated memory is still 176.2MB. Free memory was 118.1MB in the beginning and 116.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1012.03ms. Allocated memory is still 176.2MB. Free memory was 116.1MB in the beginning and 141.6MB in the end (delta: -25.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6711.66ms. Allocated memory was 176.2MB in the beginning and 230.7MB in the end (delta: 54.5MB). Free memory was 140.3MB in the beginning and 67.4MB in the end (delta: 72.8MB). Peak memory consumption was 128.2MB. Max. memory is 16.1GB. * Witness Printer took 167.07ms. Allocated memory is still 230.7MB. Free memory was 67.4MB in the beginning and 192.2MB in the end (delta: -124.7MB). 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: 5.0s, 99 PlacesBefore, 26 PlacesAfterwards, 95 TransitionsBefore, 19 TransitionsAfterwards, 1548 CoEnabledTransitionPairs, 7 FixpointIterations, 33 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 3 ChoiceCompositions, 87 TotalNumberOfCompositions, 4513 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1808, independent: 1614, independent conditional: 0, independent unconditional: 1614, dependent: 194, dependent conditional: 0, dependent unconditional: 194, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 872, independent: 829, independent conditional: 0, independent unconditional: 829, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1808, independent: 785, independent conditional: 0, independent unconditional: 785, dependent: 151, dependent conditional: 0, dependent unconditional: 151, unknown: 872, unknown conditional: 0, unknown unconditional: 872] , Statistics on independence cache: Total cache size (in pairs): 61, Positive cache size: 49, Positive conditional cache size: 0, Positive unconditional cache size: 49, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 749]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 749]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 777]: 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 5 procedures, 117 locations, 10 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: 6.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 75 IncrementalHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 2 mSDtfsCounter, 75 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=2, InterpolantAutomatonStates: 10, 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, 0.5s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 63 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 07:47:06,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac135796-daf9-48ce-979b-81646c5960a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE