./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi002_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_8b6b95c2-1d1a-4fd7-8482-0f56268e7f6e/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6b95c2-1d1a-4fd7-8482-0f56268e7f6e/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6b95c2-1d1a-4fd7-8482-0f56268e7f6e/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6b95c2-1d1a-4fd7-8482-0f56268e7f6e/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi002_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6b95c2-1d1a-4fd7-8482-0f56268e7f6e/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6b95c2-1d1a-4fd7-8482-0f56268e7f6e/bin/uautomizer-verify-uTZkv6EMXl --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 48e6a57243e80a87d178da358ff4ad1dd63b86003507ef0dec3764d15038130a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:23:02,062 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:23:02,189 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6b95c2-1d1a-4fd7-8482-0f56268e7f6e/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:23:02,199 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:23:02,200 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:23:02,246 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:23:02,247 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:23:02,248 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:23:02,249 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:23:02,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:23:02,251 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:23:02,252 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:23:02,253 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:23:02,254 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:23:02,255 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:23:02,256 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:23:02,257 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:23:02,258 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:23:02,259 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:23:02,259 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:23:02,260 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:23:02,261 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:23:02,262 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:23:02,263 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:23:02,263 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:23:02,264 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:23:02,265 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:23:02,266 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:23:02,266 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:23:02,267 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:23:02,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:23:02,268 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:23:02,269 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:23:02,269 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:23:02,270 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:23:02,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:23:02,270 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:23:02,271 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:23:02,271 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:23:02,272 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:23:02,272 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:23:02,273 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_8b6b95c2-1d1a-4fd7-8482-0f56268e7f6e/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6b95c2-1d1a-4fd7-8482-0f56268e7f6e/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48e6a57243e80a87d178da358ff4ad1dd63b86003507ef0dec3764d15038130a [2023-11-12 02:23:02,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:23:02,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:23:02,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:23:02,642 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:23:02,643 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:23:02,645 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6b95c2-1d1a-4fd7-8482-0f56268e7f6e/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-wmm/rfi002_tso.i [2023-11-12 02:23:06,361 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:23:06,661 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:23:06,664 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6b95c2-1d1a-4fd7-8482-0f56268e7f6e/sv-benchmarks/c/pthread-wmm/rfi002_tso.i [2023-11-12 02:23:06,704 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6b95c2-1d1a-4fd7-8482-0f56268e7f6e/bin/uautomizer-verify-uTZkv6EMXl/data/3f97c579a/21f582ba84274d558890e062ca2157e9/FLAG8e86e3e9f [2023-11-12 02:23:06,719 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6b95c2-1d1a-4fd7-8482-0f56268e7f6e/bin/uautomizer-verify-uTZkv6EMXl/data/3f97c579a/21f582ba84274d558890e062ca2157e9 [2023-11-12 02:23:06,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:23:06,724 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:23:06,726 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:23:06,726 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:23:06,733 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:23:06,733 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:23:06" (1/1) ... [2023-11-12 02:23:06,735 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@778a910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:06, skipping insertion in model container [2023-11-12 02:23:06,735 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:23:06" (1/1) ... [2023-11-12 02:23:06,833 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:23:07,463 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:23:07,489 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:23:07,633 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:23:07,697 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:23:07,698 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:23:07,706 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:23:07,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:07 WrapperNode [2023-11-12 02:23:07,707 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:23:07,708 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:23:07,709 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:23:07,709 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:23:07,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:07" (1/1) ... [2023-11-12 02:23:07,770 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:07" (1/1) ... [2023-11-12 02:23:07,867 INFO L138 Inliner]: procedures = 175, calls = 49, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 219 [2023-11-12 02:23:07,868 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:23:07,868 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:23:07,869 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:23:07,869 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:23:07,888 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:07" (1/1) ... [2023-11-12 02:23:07,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:07" (1/1) ... [2023-11-12 02:23:07,910 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:07" (1/1) ... [2023-11-12 02:23:07,911 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:07" (1/1) ... [2023-11-12 02:23:07,934 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:07" (1/1) ... [2023-11-12 02:23:07,954 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:07" (1/1) ... [2023-11-12 02:23:07,957 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:07" (1/1) ... [2023-11-12 02:23:07,960 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:07" (1/1) ... [2023-11-12 02:23:07,988 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:23:07,995 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:23:08,005 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:23:08,005 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:23:08,006 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:07" (1/1) ... [2023-11-12 02:23:08,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:23:08,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6b95c2-1d1a-4fd7-8482-0f56268e7f6e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:23:08,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6b95c2-1d1a-4fd7-8482-0f56268e7f6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:23:08,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6b95c2-1d1a-4fd7-8482-0f56268e7f6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:23:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:23:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:23:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:23:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:23:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:23:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 02:23:08,098 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 02:23:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 02:23:08,099 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 02:23:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:23:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:23:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:23:08,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:23:08,105 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:23:08,263 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:23:08,265 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:23:08,735 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:23:09,066 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:23:09,068 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:23:09,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:23:09 BoogieIcfgContainer [2023-11-12 02:23:09,073 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:23:09,078 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:23:09,078 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:23:09,082 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:23:09,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:23:06" (1/3) ... [2023-11-12 02:23:09,083 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e765810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:23:09, skipping insertion in model container [2023-11-12 02:23:09,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:07" (2/3) ... [2023-11-12 02:23:09,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e765810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:23:09, skipping insertion in model container [2023-11-12 02:23:09,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:23:09" (3/3) ... [2023-11-12 02:23:09,088 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi002_tso.i [2023-11-12 02:23:09,097 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:23:09,109 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:23:09,111 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-12 02:23:09,111 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:23:09,197 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:23:09,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 116 transitions, 240 flow [2023-11-12 02:23:09,298 INFO L124 PetriNetUnfolderBase]: 3/114 cut-off events. [2023-11-12 02:23:09,299 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:23:09,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 114 events. 3/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 69 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2023-11-12 02:23:09,306 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 116 transitions, 240 flow [2023-11-12 02:23:09,312 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 114 transitions, 234 flow [2023-11-12 02:23:09,317 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:23:09,341 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 114 transitions, 234 flow [2023-11-12 02:23:09,344 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 118 places, 114 transitions, 234 flow [2023-11-12 02:23:09,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 114 transitions, 234 flow [2023-11-12 02:23:09,411 INFO L124 PetriNetUnfolderBase]: 3/114 cut-off events. [2023-11-12 02:23:09,415 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:23:09,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 114 events. 3/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 69 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2023-11-12 02:23:09,419 INFO L119 LiptonReduction]: Number of co-enabled transitions 1830 [2023-11-12 02:23:15,718 INFO L134 LiptonReduction]: Checked pairs total: 6495 [2023-11-12 02:23:15,718 INFO L136 LiptonReduction]: Total number of compositions: 106 [2023-11-12 02:23:15,733 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:23:15,740 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;@2bb776af, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:23:15,740 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-12 02:23:15,748 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:23:15,748 INFO L124 PetriNetUnfolderBase]: 1/14 cut-off events. [2023-11-12 02:23:15,748 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:23:15,748 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:23:15,749 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:23:15,750 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-12 02:23:15,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:15,756 INFO L85 PathProgramCache]: Analyzing trace with hash -772355160, now seen corresponding path program 1 times [2023-11-12 02:23:15,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:15,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288198917] [2023-11-12 02:23:15,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:15,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:16,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:23:16,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:16,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288198917] [2023-11-12 02:23:16,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288198917] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:16,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:16,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:23:16,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680645450] [2023-11-12 02:23:16,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:16,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:23:16,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:16,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:23:16,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:23:16,243 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 222 [2023-11-12 02:23:16,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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) [2023-11-12 02:23:16,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:23:16,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 222 [2023-11-12 02:23:16,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:23:16,555 INFO L124 PetriNetUnfolderBase]: 340/583 cut-off events. [2023-11-12 02:23:16,555 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-12 02:23:16,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1184 conditions, 583 events. 340/583 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2180 event pairs, 224 based on Foata normal form. 0/563 useless extension candidates. Maximal degree in co-relation 1174. Up to 385 conditions per place. [2023-11-12 02:23:16,569 INFO L140 encePairwiseOnDemand]: 214/222 looper letters, 35 selfloop transitions, 3 changer transitions 2/40 dead transitions. [2023-11-12 02:23:16,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 40 transitions, 169 flow [2023-11-12 02:23:16,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:23:16,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:23:16,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 325 transitions. [2023-11-12 02:23:16,591 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.487987987987988 [2023-11-12 02:23:16,592 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 325 transitions. [2023-11-12 02:23:16,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 325 transitions. [2023-11-12 02:23:16,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:23:16,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 325 transitions. [2023-11-12 02:23:16,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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) [2023-11-12 02:23:16,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 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) [2023-11-12 02:23:16,608 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 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) [2023-11-12 02:23:16,610 INFO L175 Difference]: Start difference. First operand has 30 places, 24 transitions, 54 flow. Second operand 3 states and 325 transitions. [2023-11-12 02:23:16,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 40 transitions, 169 flow [2023-11-12 02:23:16,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 40 transitions, 166 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:23:16,616 INFO L231 Difference]: Finished difference. Result has 31 places, 23 transitions, 67 flow [2023-11-12 02:23:16,619 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, 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} [2023-11-12 02:23:16,623 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 1 predicate places. [2023-11-12 02:23:16,623 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 67 flow [2023-11-12 02:23:16,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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) [2023-11-12 02:23:16,624 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:23:16,624 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:23:16,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:23:16,625 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-12 02:23:16,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:16,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1449863008, now seen corresponding path program 1 times [2023-11-12 02:23:16,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:16,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867027092] [2023-11-12 02:23:16,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:16,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:16,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:23:16,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:16,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867027092] [2023-11-12 02:23:16,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867027092] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:16,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:16,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:23:16,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299866446] [2023-11-12 02:23:16,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:16,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:23:16,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:16,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:23:16,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:23:17,001 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 222 [2023-11-12 02:23:17,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 23 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 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) [2023-11-12 02:23:17,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:23:17,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 222 [2023-11-12 02:23:17,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:23:17,284 INFO L124 PetriNetUnfolderBase]: 323/551 cut-off events. [2023-11-12 02:23:17,285 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2023-11-12 02:23:17,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1245 conditions, 551 events. 323/551 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2036 event pairs, 224 based on Foata normal form. 0/551 useless extension candidates. Maximal degree in co-relation 1234. Up to 385 conditions per place. [2023-11-12 02:23:17,290 INFO L140 encePairwiseOnDemand]: 217/222 looper letters, 33 selfloop transitions, 3 changer transitions 0/36 dead transitions. [2023-11-12 02:23:17,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 36 transitions, 163 flow [2023-11-12 02:23:17,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:23:17,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:23:17,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 410 transitions. [2023-11-12 02:23:17,295 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4617117117117117 [2023-11-12 02:23:17,295 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 410 transitions. [2023-11-12 02:23:17,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 410 transitions. [2023-11-12 02:23:17,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:23:17,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 410 transitions. [2023-11-12 02:23:17,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 102.5) internal successors, (410), 4 states have internal predecessors, (410), 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) [2023-11-12 02:23:17,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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) [2023-11-12 02:23:17,303 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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) [2023-11-12 02:23:17,303 INFO L175 Difference]: Start difference. First operand has 31 places, 23 transitions, 67 flow. Second operand 4 states and 410 transitions. [2023-11-12 02:23:17,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 36 transitions, 163 flow [2023-11-12 02:23:17,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 36 transitions, 160 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:23:17,306 INFO L231 Difference]: Finished difference. Result has 31 places, 21 transitions, 62 flow [2023-11-12 02:23:17,307 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, 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} [2023-11-12 02:23:17,308 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 1 predicate places. [2023-11-12 02:23:17,308 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 21 transitions, 62 flow [2023-11-12 02:23:17,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 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) [2023-11-12 02:23:17,309 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:23:17,309 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:23:17,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:23:17,309 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-12 02:23:17,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:17,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1449863007, now seen corresponding path program 1 times [2023-11-12 02:23:17,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:17,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819678635] [2023-11-12 02:23:17,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:17,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:17,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:23:17,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:17,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819678635] [2023-11-12 02:23:17,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819678635] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:17,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:17,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:23:17,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566447069] [2023-11-12 02:23:17,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:17,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:23:17,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:17,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:23:17,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:23:17,542 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 222 [2023-11-12 02:23:17,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 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) [2023-11-12 02:23:17,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:23:17,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 222 [2023-11-12 02:23:17,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:23:17,795 INFO L124 PetriNetUnfolderBase]: 315/533 cut-off events. [2023-11-12 02:23:17,795 INFO L125 PetriNetUnfolderBase]: For 99/99 co-relation queries the response was YES. [2023-11-12 02:23:17,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1200 conditions, 533 events. 315/533 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1973 event pairs, 224 based on Foata normal form. 10/543 useless extension candidates. Maximal degree in co-relation 1188. Up to 385 conditions per place. [2023-11-12 02:23:17,799 INFO L140 encePairwiseOnDemand]: 217/222 looper letters, 0 selfloop transitions, 0 changer transitions 34/34 dead transitions. [2023-11-12 02:23:17,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 34 transitions, 154 flow [2023-11-12 02:23:17,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:23:17,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:23:17,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 408 transitions. [2023-11-12 02:23:17,803 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4594594594594595 [2023-11-12 02:23:17,803 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 408 transitions. [2023-11-12 02:23:17,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 408 transitions. [2023-11-12 02:23:17,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:23:17,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 408 transitions. [2023-11-12 02:23:17,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 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) [2023-11-12 02:23:17,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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) [2023-11-12 02:23:17,810 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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) [2023-11-12 02:23:17,810 INFO L175 Difference]: Start difference. First operand has 31 places, 21 transitions, 62 flow. Second operand 4 states and 408 transitions. [2023-11-12 02:23:17,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 34 transitions, 154 flow [2023-11-12 02:23:17,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 34 transitions, 147 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-12 02:23:17,814 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2023-11-12 02:23:17,814 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, 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} [2023-11-12 02:23:17,815 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, -1 predicate places. [2023-11-12 02:23:17,815 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2023-11-12 02:23:17,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 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) [2023-11-12 02:23:17,819 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-11-12 02:23:17,819 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-11-12 02:23:17,820 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-11-12 02:23:17,820 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-11-12 02:23:17,820 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2023-11-12 02:23:17,821 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-11-12 02:23:17,821 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-11-12 02:23:17,821 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-11-12 02:23:17,821 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-11-12 02:23:17,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-11-12 02:23:17,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:23:17,822 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-12 02:23:17,832 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:23:17,832 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:23:17,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:23:17 BasicIcfg [2023-11-12 02:23:17,837 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:23:17,838 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:23:17,838 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:23:17,838 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:23:17,839 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:23:09" (3/4) ... [2023-11-12 02:23:17,841 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:23:17,845 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-12 02:23:17,845 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-12 02:23:17,855 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2023-11-12 02:23:17,856 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-12 02:23:17,856 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-12 02:23:17,857 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:23:17,990 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6b95c2-1d1a-4fd7-8482-0f56268e7f6e/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:23:17,991 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6b95c2-1d1a-4fd7-8482-0f56268e7f6e/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:23:17,991 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:23:17,992 INFO L158 Benchmark]: Toolchain (without parser) took 11267.47ms. Allocated memory was 159.4MB in the beginning and 251.7MB in the end (delta: 92.3MB). Free memory was 114.8MB in the beginning and 110.8MB in the end (delta: 4.0MB). Peak memory consumption was 98.7MB. Max. memory is 16.1GB. [2023-11-12 02:23:17,992 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 109.1MB. Free memory is still 56.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:23:17,992 INFO L158 Benchmark]: CACSL2BoogieTranslator took 981.18ms. Allocated memory is still 159.4MB. Free memory was 114.5MB in the beginning and 87.1MB in the end (delta: 27.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-12 02:23:17,993 INFO L158 Benchmark]: Boogie Procedure Inliner took 159.67ms. Allocated memory is still 159.4MB. Free memory was 87.1MB in the beginning and 131.2MB in the end (delta: -44.0MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2023-11-12 02:23:17,993 INFO L158 Benchmark]: Boogie Preprocessor took 125.32ms. Allocated memory is still 159.4MB. Free memory was 131.2MB in the beginning and 128.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:23:17,994 INFO L158 Benchmark]: RCFGBuilder took 1078.42ms. Allocated memory is still 159.4MB. Free memory was 128.5MB in the beginning and 114.8MB in the end (delta: 13.7MB). Peak memory consumption was 63.5MB. Max. memory is 16.1GB. [2023-11-12 02:23:17,994 INFO L158 Benchmark]: TraceAbstraction took 8759.47ms. Allocated memory was 159.4MB in the beginning and 251.7MB in the end (delta: 92.3MB). Free memory was 114.4MB in the beginning and 115.0MB in the end (delta: -610.6kB). Peak memory consumption was 91.7MB. Max. memory is 16.1GB. [2023-11-12 02:23:17,995 INFO L158 Benchmark]: Witness Printer took 152.92ms. Allocated memory is still 251.7MB. Free memory was 115.0MB in the beginning and 110.8MB in the end (delta: 4.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 02:23:17,997 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 109.1MB. Free memory is still 56.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 981.18ms. Allocated memory is still 159.4MB. Free memory was 114.5MB in the beginning and 87.1MB in the end (delta: 27.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 159.67ms. Allocated memory is still 159.4MB. Free memory was 87.1MB in the beginning and 131.2MB in the end (delta: -44.0MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 125.32ms. Allocated memory is still 159.4MB. Free memory was 131.2MB in the beginning and 128.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1078.42ms. Allocated memory is still 159.4MB. Free memory was 128.5MB in the beginning and 114.8MB in the end (delta: 13.7MB). Peak memory consumption was 63.5MB. Max. memory is 16.1GB. * TraceAbstraction took 8759.47ms. Allocated memory was 159.4MB in the beginning and 251.7MB in the end (delta: 92.3MB). Free memory was 114.4MB in the beginning and 115.0MB in the end (delta: -610.6kB). Peak memory consumption was 91.7MB. Max. memory is 16.1GB. * Witness Printer took 152.92ms. Allocated memory is still 251.7MB. Free memory was 115.0MB in the beginning and 110.8MB in the end (delta: 4.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.4s, 118 PlacesBefore, 30 PlacesAfterwards, 114 TransitionsBefore, 24 TransitionsAfterwards, 1830 CoEnabledTransitionPairs, 7 FixpointIterations, 49 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 106 TotalNumberOfCompositions, 6495 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2761, independent: 2522, independent conditional: 0, independent unconditional: 2522, dependent: 239, dependent conditional: 0, dependent unconditional: 239, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1070, independent: 1030, independent conditional: 0, independent unconditional: 1030, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2761, independent: 1492, independent conditional: 0, independent unconditional: 1492, dependent: 199, dependent conditional: 0, dependent unconditional: 199, unknown: 1070, unknown conditional: 0, unknown unconditional: 1070] , Statistics on independence cache: Total cache size (in pairs): 97, Positive cache size: 74, Positive conditional cache size: 0, Positive unconditional cache size: 74, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 788]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 788]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 861]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 861]: 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, 139 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: 8.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 79 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 161 IncrementalHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 4 mSDtfsCounter, 161 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, 0.2s 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! [2023-11-12 02:23:18,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6b95c2-1d1a-4fd7-8482-0f56268e7f6e/bin/uautomizer-verify-uTZkv6EMXl/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