./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi003_tso.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_c793e066-7f8f-4fb6-97a5-9659fbd12de1/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c793e066-7f8f-4fb6-97a5-9659fbd12de1/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_c793e066-7f8f-4fb6-97a5-9659fbd12de1/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c793e066-7f8f-4fb6-97a5-9659fbd12de1/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi003_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c793e066-7f8f-4fb6-97a5-9659fbd12de1/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_c793e066-7f8f-4fb6-97a5-9659fbd12de1/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 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:52:03,226 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:52:03,313 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c793e066-7f8f-4fb6-97a5-9659fbd12de1/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:52:03,318 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:52:03,319 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:52:03,350 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:52:03,351 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:52:03,352 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:52:03,352 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:52:03,353 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:52:03,354 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:52:03,355 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:52:03,355 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:52:03,356 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:52:03,356 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:52:03,357 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:52:03,358 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:52:03,358 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:52:03,359 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:52:03,363 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:52:03,367 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:52:03,368 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:52:03,369 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:52:03,370 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:52:03,371 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:52:03,371 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:52:03,372 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:52:03,372 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:52:03,373 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:52:03,373 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:52:03,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:52:03,375 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:52:03,375 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:52:03,376 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:52:03,376 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:52:03,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:52:03,376 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:52:03,377 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:52:03,377 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:52:03,377 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:52:03,377 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:52:03,378 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_c793e066-7f8f-4fb6-97a5-9659fbd12de1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c793e066-7f8f-4fb6-97a5-9659fbd12de1/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 [2023-11-06 22:52:03,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:52:03,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:52:03,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:52:03,761 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:52:03,762 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:52:03,763 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c793e066-7f8f-4fb6-97a5-9659fbd12de1/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2023-11-06 22:52:07,067 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:52:07,453 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:52:07,454 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c793e066-7f8f-4fb6-97a5-9659fbd12de1/sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2023-11-06 22:52:07,472 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c793e066-7f8f-4fb6-97a5-9659fbd12de1/bin/uautomizer-verify-WvqO1wxjHP/data/a96e9ed7d/da962e1d3713448ebdb97ad52d4a0b90/FLAGeccc7d254 [2023-11-06 22:52:07,488 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c793e066-7f8f-4fb6-97a5-9659fbd12de1/bin/uautomizer-verify-WvqO1wxjHP/data/a96e9ed7d/da962e1d3713448ebdb97ad52d4a0b90 [2023-11-06 22:52:07,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:52:07,493 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:52:07,494 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:52:07,494 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:52:07,501 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:52:07,502 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:52:07" (1/1) ... [2023-11-06 22:52:07,503 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32b381a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:07, skipping insertion in model container [2023-11-06 22:52:07,503 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:52:07" (1/1) ... [2023-11-06 22:52:07,565 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:52:08,103 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:52:08,114 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:52:08,179 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:52:08,215 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:52:08,216 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:52:08,224 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:52:08,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:08 WrapperNode [2023-11-06 22:52:08,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:52:08,226 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:52:08,226 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:52:08,226 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:52:08,234 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:08" (1/1) ... [2023-11-06 22:52:08,253 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:08" (1/1) ... [2023-11-06 22:52:08,290 INFO L138 Inliner]: procedures = 175, calls = 48, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 178 [2023-11-06 22:52:08,290 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:52:08,291 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:52:08,291 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:52:08,291 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:52:08,302 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:08" (1/1) ... [2023-11-06 22:52:08,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:08" (1/1) ... [2023-11-06 22:52:08,306 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:08" (1/1) ... [2023-11-06 22:52:08,307 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:08" (1/1) ... [2023-11-06 22:52:08,319 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:08" (1/1) ... [2023-11-06 22:52:08,322 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:08" (1/1) ... [2023-11-06 22:52:08,325 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:08" (1/1) ... [2023-11-06 22:52:08,327 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:08" (1/1) ... [2023-11-06 22:52:08,332 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:52:08,333 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:52:08,334 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:52:08,334 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:52:08,335 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:08" (1/1) ... [2023-11-06 22:52:08,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:52:08,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c793e066-7f8f-4fb6-97a5-9659fbd12de1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:52:08,382 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c793e066-7f8f-4fb6-97a5-9659fbd12de1/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:52:08,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c793e066-7f8f-4fb6-97a5-9659fbd12de1/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:52:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:52:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:52:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:52:08,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:52:08,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:52:08,426 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-06 22:52:08,426 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-06 22:52:08,426 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-06 22:52:08,427 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-06 22:52:08,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:52:08,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:52:08,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:52:08,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:52:08,432 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:52:08,657 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:52:08,660 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:52:09,193 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:52:09,542 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:52:09,543 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:52:09,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:52:09 BoogieIcfgContainer [2023-11-06 22:52:09,546 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:52:09,553 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:52:09,555 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:52:09,560 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:52:09,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:52:07" (1/3) ... [2023-11-06 22:52:09,561 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a14aecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:52:09, skipping insertion in model container [2023-11-06 22:52:09,561 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:08" (2/3) ... [2023-11-06 22:52:09,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a14aecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:52:09, skipping insertion in model container [2023-11-06 22:52:09,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:52:09" (3/3) ... [2023-11-06 22:52:09,566 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi003_tso.i [2023-11-06 22:52:09,578 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:52:09,591 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:52:09,592 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-06 22:52:09,592 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:52:09,708 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 22:52:09,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 102 transitions, 212 flow [2023-11-06 22:52:09,845 INFO L124 PetriNetUnfolderBase]: 3/100 cut-off events. [2023-11-06 22:52:09,845 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:52:09,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 100 events. 3/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 71 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2023-11-06 22:52:09,852 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 102 transitions, 212 flow [2023-11-06 22:52:09,861 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 100 transitions, 206 flow [2023-11-06 22:52:09,865 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:52:09,886 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 100 transitions, 206 flow [2023-11-06 22:52:09,889 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 100 transitions, 206 flow [2023-11-06 22:52:09,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 100 transitions, 206 flow [2023-11-06 22:52:09,948 INFO L124 PetriNetUnfolderBase]: 3/100 cut-off events. [2023-11-06 22:52:09,948 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:52:09,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 100 events. 3/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 71 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2023-11-06 22:52:09,952 INFO L119 LiptonReduction]: Number of co-enabled transitions 1830 [2023-11-06 22:52:14,509 INFO L134 LiptonReduction]: Checked pairs total: 5884 [2023-11-06 22:52:14,509 INFO L136 LiptonReduction]: Total number of compositions: 87 [2023-11-06 22:52:14,537 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:52:14,548 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;@c9ca6af, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:52:14,548 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-06 22:52:14,574 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:52:14,574 INFO L124 PetriNetUnfolderBase]: 1/14 cut-off events. [2023-11-06 22:52:14,574 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:52:14,574 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:52:14,575 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:52:14,577 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-06 22:52:14,582 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:52:14,582 INFO L85 PathProgramCache]: Analyzing trace with hash 2091281866, now seen corresponding path program 1 times [2023-11-06 22:52:14,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:52:14,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917967144] [2023-11-06 22:52:14,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:52:14,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:52:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:14,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:52:14,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:52:14,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917967144] [2023-11-06 22:52:14,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917967144] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:52:14,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:52:14,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:52:14,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760775843] [2023-11-06 22:52:14,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:52:14,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:52:14,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:52:14,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:52:14,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:52:14,990 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 189 [2023-11-06 22:52:14,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:52:14,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:52:14,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 189 [2023-11-06 22:52:14,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:52:15,302 INFO L124 PetriNetUnfolderBase]: 280/489 cut-off events. [2023-11-06 22:52:15,303 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-06 22:52:15,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 991 conditions, 489 events. 280/489 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1887 event pairs, 173 based on Foata normal form. 0/467 useless extension candidates. Maximal degree in co-relation 981. Up to 302 conditions per place. [2023-11-06 22:52:15,310 INFO L140 encePairwiseOnDemand]: 181/189 looper letters, 33 selfloop transitions, 3 changer transitions 2/39 dead transitions. [2023-11-06 22:52:15,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 39 transitions, 163 flow [2023-11-06 22:52:15,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:52:15,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:52:15,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 287 transitions. [2023-11-06 22:52:15,328 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5061728395061729 [2023-11-06 22:52:15,329 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 287 transitions. [2023-11-06 22:52:15,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 287 transitions. [2023-11-06 22:52:15,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:52:15,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 287 transitions. [2023-11-06 22:52:15,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:52:15,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:52:15,344 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:52:15,346 INFO L175 Difference]: Start difference. First operand has 30 places, 24 transitions, 54 flow. Second operand 3 states and 287 transitions. [2023-11-06 22:52:15,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 39 transitions, 163 flow [2023-11-06 22:52:15,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 39 transitions, 160 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:52:15,352 INFO L231 Difference]: Finished difference. Result has 31 places, 23 transitions, 67 flow [2023-11-06 22:52:15,355 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=31, PETRI_TRANSITIONS=23} [2023-11-06 22:52:15,359 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 1 predicate places. [2023-11-06 22:52:15,359 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 67 flow [2023-11-06 22:52:15,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:52:15,360 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:52:15,360 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:52:15,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:52:15,361 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-06 22:52:15,361 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:52:15,361 INFO L85 PathProgramCache]: Analyzing trace with hash -976705520, now seen corresponding path program 1 times [2023-11-06 22:52:15,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:52:15,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294643289] [2023-11-06 22:52:15,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:52:15,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:52:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:15,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:52:15,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:52:15,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294643289] [2023-11-06 22:52:15,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294643289] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:52:15,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:52:15,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:52:15,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586637181] [2023-11-06 22:52:15,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:52:15,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:52:15,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:52:15,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:52:15,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:52:15,732 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 189 [2023-11-06 22:52:15,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 23 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:52:15,734 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:52:15,734 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 189 [2023-11-06 22:52:15,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:52:15,984 INFO L124 PetriNetUnfolderBase]: 263/457 cut-off events. [2023-11-06 22:52:15,985 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2023-11-06 22:52:15,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1042 conditions, 457 events. 263/457 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1755 event pairs, 173 based on Foata normal form. 0/455 useless extension candidates. Maximal degree in co-relation 1031. Up to 302 conditions per place. [2023-11-06 22:52:15,994 INFO L140 encePairwiseOnDemand]: 184/189 looper letters, 31 selfloop transitions, 3 changer transitions 0/35 dead transitions. [2023-11-06 22:52:15,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 35 transitions, 157 flow [2023-11-06 22:52:15,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:52:15,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:52:16,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 360 transitions. [2023-11-06 22:52:16,005 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2023-11-06 22:52:16,005 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 360 transitions. [2023-11-06 22:52:16,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 360 transitions. [2023-11-06 22:52:16,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:52:16,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 360 transitions. [2023-11-06 22:52:16,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:52:16,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:52:16,020 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:52:16,021 INFO L175 Difference]: Start difference. First operand has 31 places, 23 transitions, 67 flow. Second operand 4 states and 360 transitions. [2023-11-06 22:52:16,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 35 transitions, 157 flow [2023-11-06 22:52:16,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 35 transitions, 154 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:52:16,028 INFO L231 Difference]: Finished difference. Result has 31 places, 21 transitions, 62 flow [2023-11-06 22:52:16,028 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=62, PETRI_PLACES=31, PETRI_TRANSITIONS=21} [2023-11-06 22:52:16,030 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 1 predicate places. [2023-11-06 22:52:16,030 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 21 transitions, 62 flow [2023-11-06 22:52:16,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:52:16,037 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:52:16,038 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:52:16,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:52:16,038 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-06 22:52:16,039 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:52:16,039 INFO L85 PathProgramCache]: Analyzing trace with hash -976705519, now seen corresponding path program 1 times [2023-11-06 22:52:16,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:52:16,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451702802] [2023-11-06 22:52:16,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:52:16,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:52:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:16,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:52:16,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:52:16,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451702802] [2023-11-06 22:52:16,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451702802] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:52:16,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:52:16,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:52:16,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826598542] [2023-11-06 22:52:16,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:52:16,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:52:16,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:52:16,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:52:16,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:52:16,309 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 189 [2023-11-06 22:52:16,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:52:16,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:52:16,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 189 [2023-11-06 22:52:16,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:52:16,499 INFO L124 PetriNetUnfolderBase]: 255/439 cut-off events. [2023-11-06 22:52:16,499 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2023-11-06 22:52:16,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 997 conditions, 439 events. 255/439 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1685 event pairs, 173 based on Foata normal form. 10/447 useless extension candidates. Maximal degree in co-relation 985. Up to 302 conditions per place. [2023-11-06 22:52:16,501 INFO L140 encePairwiseOnDemand]: 184/189 looper letters, 0 selfloop transitions, 0 changer transitions 33/33 dead transitions. [2023-11-06 22:52:16,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 33 transitions, 148 flow [2023-11-06 22:52:16,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:52:16,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:52:16,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 358 transitions. [2023-11-06 22:52:16,505 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47354497354497355 [2023-11-06 22:52:16,506 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 358 transitions. [2023-11-06 22:52:16,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 358 transitions. [2023-11-06 22:52:16,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:52:16,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 358 transitions. [2023-11-06 22:52:16,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:52:16,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:52:16,512 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:52:16,512 INFO L175 Difference]: Start difference. First operand has 31 places, 21 transitions, 62 flow. Second operand 4 states and 358 transitions. [2023-11-06 22:52:16,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 33 transitions, 148 flow [2023-11-06 22:52:16,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 33 transitions, 141 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 22:52:16,514 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2023-11-06 22:52:16,515 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2023-11-06 22:52:16,515 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, -1 predicate places. [2023-11-06 22:52:16,516 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2023-11-06 22:52:16,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:52:16,519 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-11-06 22:52:16,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-11-06 22:52:16,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-11-06 22:52:16,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-11-06 22:52:16,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2023-11-06 22:52:16,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-11-06 22:52:16,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-11-06 22:52:16,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-11-06 22:52:16,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-11-06 22:52:16,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-11-06 22:52:16,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:52:16,523 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-06 22:52:16,529 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:52:16,529 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:52:16,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:52:16 BasicIcfg [2023-11-06 22:52:16,534 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:52:16,534 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:52:16,534 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:52:16,535 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:52:16,535 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:52:09" (3/4) ... [2023-11-06 22:52:16,537 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:52:16,540 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-06 22:52:16,540 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-06 22:52:16,546 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2023-11-06 22:52:16,547 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-06 22:52:16,547 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:52:16,548 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:52:16,611 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c793e066-7f8f-4fb6-97a5-9659fbd12de1/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:52:16,611 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c793e066-7f8f-4fb6-97a5-9659fbd12de1/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:52:16,611 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:52:16,612 INFO L158 Benchmark]: Toolchain (without parser) took 9119.69ms. Allocated memory was 148.9MB in the beginning and 232.8MB in the end (delta: 83.9MB). Free memory was 115.4MB in the beginning and 188.4MB in the end (delta: -73.1MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2023-11-06 22:52:16,613 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 148.9MB. Free memory is still 120.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:52:16,613 INFO L158 Benchmark]: CACSL2BoogieTranslator took 730.64ms. Allocated memory is still 148.9MB. Free memory was 115.4MB in the beginning and 103.3MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:52:16,614 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.91ms. Allocated memory is still 148.9MB. Free memory was 103.3MB in the beginning and 99.7MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:52:16,614 INFO L158 Benchmark]: Boogie Preprocessor took 41.42ms. Allocated memory is still 148.9MB. Free memory was 99.7MB in the beginning and 97.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:52:16,615 INFO L158 Benchmark]: RCFGBuilder took 1213.04ms. Allocated memory is still 148.9MB. Free memory was 97.6MB in the beginning and 45.2MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2023-11-06 22:52:16,616 INFO L158 Benchmark]: TraceAbstraction took 6981.10ms. Allocated memory was 148.9MB in the beginning and 232.8MB in the end (delta: 83.9MB). Free memory was 44.6MB in the beginning and 192.6MB in the end (delta: -148.0MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB. [2023-11-06 22:52:16,616 INFO L158 Benchmark]: Witness Printer took 77.36ms. Allocated memory is still 232.8MB. Free memory was 192.6MB in the beginning and 188.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:52:16,618 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 148.9MB. Free memory is still 120.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 730.64ms. Allocated memory is still 148.9MB. Free memory was 115.4MB in the beginning and 103.3MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.91ms. Allocated memory is still 148.9MB. Free memory was 103.3MB in the beginning and 99.7MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.42ms. Allocated memory is still 148.9MB. Free memory was 99.7MB in the beginning and 97.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1213.04ms. Allocated memory is still 148.9MB. Free memory was 97.6MB in the beginning and 45.2MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * TraceAbstraction took 6981.10ms. Allocated memory was 148.9MB in the beginning and 232.8MB in the end (delta: 83.9MB). Free memory was 44.6MB in the beginning and 192.6MB in the end (delta: -148.0MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB. * Witness Printer took 77.36ms. Allocated memory is still 232.8MB. Free memory was 192.6MB in the beginning and 188.4MB 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: 4.6s, 104 PlacesBefore, 30 PlacesAfterwards, 100 TransitionsBefore, 24 TransitionsAfterwards, 1830 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 87 TotalNumberOfCompositions, 5884 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2340, independent: 2126, independent conditional: 0, independent unconditional: 2126, dependent: 214, dependent conditional: 0, dependent unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1037, independent: 995, independent conditional: 0, independent unconditional: 995, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2340, independent: 1131, independent conditional: 0, independent unconditional: 1131, dependent: 172, dependent conditional: 0, dependent unconditional: 172, unknown: 1037, unknown conditional: 0, unknown unconditional: 1037] , Statistics on independence cache: Total cache size (in pairs): 106, Positive cache size: 85, Positive conditional cache size: 0, Positive unconditional cache size: 85, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 820]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 820]: 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, 125 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: 6.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 78 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 157 IncrementalHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 5 mSDtfsCounter, 157 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 0.7s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 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! [2023-11-06 22:52:16,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c793e066-7f8f-4fb6-97a5-9659fbd12de1/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