./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix002.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f846ad5-3f8e-43a2-b6cc-dec02e5b8fe3/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f846ad5-3f8e-43a2-b6cc-dec02e5b8fe3/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f846ad5-3f8e-43a2-b6cc-dec02e5b8fe3/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f846ad5-3f8e-43a2-b6cc-dec02e5b8fe3/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix002.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f846ad5-3f8e-43a2-b6cc-dec02e5b8fe3/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f846ad5-3f8e-43a2-b6cc-dec02e5b8fe3/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e77d530bbfcfe22638f8b89e94c23e25f591d8037158e571482779188378fc47 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:01:13,153 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:01:13,270 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f846ad5-3f8e-43a2-b6cc-dec02e5b8fe3/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 08:01:13,277 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:01:13,278 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:01:13,315 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:01:13,316 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:01:13,316 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:01:13,318 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:01:13,323 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:01:13,324 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:01:13,325 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:01:13,325 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:01:13,327 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:01:13,328 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:01:13,328 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:01:13,329 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:01:13,329 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:01:13,330 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:01:13,330 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:01:13,331 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:01:13,331 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:01:13,332 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 08:01:13,332 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:01:13,333 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:01:13,333 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:01:13,334 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:01:13,334 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:01:13,335 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:01:13,335 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:01:13,337 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:01:13,337 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:01:13,337 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:01:13,338 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:01:13,338 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:01:13,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:01:13,338 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:01:13,339 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:01:13,339 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:01:13,339 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:01:13,339 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:01:13,340 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_0f846ad5-3f8e-43a2-b6cc-dec02e5b8fe3/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f846ad5-3f8e-43a2-b6cc-dec02e5b8fe3/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e77d530bbfcfe22638f8b89e94c23e25f591d8037158e571482779188378fc47 [2023-11-19 08:01:13,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:01:13,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:01:13,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:01:13,682 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:01:13,683 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:01:13,684 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f846ad5-3f8e-43a2-b6cc-dec02e5b8fe3/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/mix002.oepc.i [2023-11-19 08:01:16,881 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:01:17,219 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:01:17,219 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f846ad5-3f8e-43a2-b6cc-dec02e5b8fe3/sv-benchmarks/c/pthread-wmm/mix002.oepc.i [2023-11-19 08:01:17,255 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f846ad5-3f8e-43a2-b6cc-dec02e5b8fe3/bin/uautomizer-verify-uCwYo4JHxu/data/2960a3031/4d19853d84e14d09a5146c5d79d7db3d/FLAGda69ba7b6 [2023-11-19 08:01:17,271 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f846ad5-3f8e-43a2-b6cc-dec02e5b8fe3/bin/uautomizer-verify-uCwYo4JHxu/data/2960a3031/4d19853d84e14d09a5146c5d79d7db3d [2023-11-19 08:01:17,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:01:17,282 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:01:17,286 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:01:17,287 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:01:17,293 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:01:17,294 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:01:17" (1/1) ... [2023-11-19 08:01:17,295 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c70b270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:17, skipping insertion in model container [2023-11-19 08:01:17,295 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:01:17" (1/1) ... [2023-11-19 08:01:17,366 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:01:17,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:01:17,923 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:01:18,025 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:01:18,061 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:01:18,061 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:01:18,069 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:01:18,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:18 WrapperNode [2023-11-19 08:01:18,070 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:01:18,072 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:01:18,072 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:01:18,073 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:01:18,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:18" (1/1) ... [2023-11-19 08:01:18,128 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:18" (1/1) ... [2023-11-19 08:01:18,183 INFO L138 Inliner]: procedures = 176, calls = 63, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 146 [2023-11-19 08:01:18,184 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:01:18,185 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:01:18,186 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:01:18,186 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:01:18,196 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:18" (1/1) ... [2023-11-19 08:01:18,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:18" (1/1) ... [2023-11-19 08:01:18,213 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:18" (1/1) ... [2023-11-19 08:01:18,217 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:18" (1/1) ... [2023-11-19 08:01:18,227 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:18" (1/1) ... [2023-11-19 08:01:18,247 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:18" (1/1) ... [2023-11-19 08:01:18,250 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:18" (1/1) ... [2023-11-19 08:01:18,252 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:18" (1/1) ... [2023-11-19 08:01:18,256 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:01:18,258 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:01:18,258 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:01:18,258 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:01:18,259 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:18" (1/1) ... [2023-11-19 08:01:18,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:01:18,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f846ad5-3f8e-43a2-b6cc-dec02e5b8fe3/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:18,293 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f846ad5-3f8e-43a2-b6cc-dec02e5b8fe3/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:01:18,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f846ad5-3f8e-43a2-b6cc-dec02e5b8fe3/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:01:18,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:01:18,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 08:01:18,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:01:18,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:01:18,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:01:18,340 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 08:01:18,340 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 08:01:18,340 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 08:01:18,340 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 08:01:18,340 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 08:01:18,341 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 08:01:18,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:01:18,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 08:01:18,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:01:18,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:01:18,345 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 08:01:18,502 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:01:18,504 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:01:18,930 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:01:19,150 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:01:19,151 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 08:01:19,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:19 BoogieIcfgContainer [2023-11-19 08:01:19,158 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:01:19,161 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:01:19,161 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:01:19,164 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:01:19,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:01:17" (1/3) ... [2023-11-19 08:01:19,166 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@393eac02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:01:19, skipping insertion in model container [2023-11-19 08:01:19,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:18" (2/3) ... [2023-11-19 08:01:19,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@393eac02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:01:19, skipping insertion in model container [2023-11-19 08:01:19,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:19" (3/3) ... [2023-11-19 08:01:19,171 INFO L112 eAbstractionObserver]: Analyzing ICFG mix002.oepc.i [2023-11-19 08:01:19,181 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 08:01:19,192 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:01:19,192 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 08:01:19,192 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 08:01:19,305 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 08:01:19,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 129 transitions, 270 flow [2023-11-19 08:01:19,460 INFO L124 PetriNetUnfolderBase]: 3/126 cut-off events. [2023-11-19 08:01:19,461 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:01:19,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 126 events. 3/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2023-11-19 08:01:19,468 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 129 transitions, 270 flow [2023-11-19 08:01:19,478 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 126 transitions, 261 flow [2023-11-19 08:01:19,483 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:01:19,505 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 126 transitions, 261 flow [2023-11-19 08:01:19,508 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 126 transitions, 261 flow [2023-11-19 08:01:19,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 133 places, 126 transitions, 261 flow [2023-11-19 08:01:19,542 INFO L124 PetriNetUnfolderBase]: 3/126 cut-off events. [2023-11-19 08:01:19,542 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:01:19,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 126 events. 3/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2023-11-19 08:01:19,547 INFO L119 LiptonReduction]: Number of co-enabled transitions 3382 [2023-11-19 08:01:24,132 INFO L134 LiptonReduction]: Checked pairs total: 12173 [2023-11-19 08:01:24,132 INFO L136 LiptonReduction]: Total number of compositions: 106 [2023-11-19 08:01:24,163 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:01:24,172 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;@1391a276, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:01:24,173 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-19 08:01:24,191 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:01:24,195 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2023-11-19 08:01:24,195 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:01:24,196 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:01:24,196 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:24,197 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 08:01:24,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:24,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1749509445, now seen corresponding path program 1 times [2023-11-19 08:01:24,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:24,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016705018] [2023-11-19 08:01:24,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:24,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:24,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:24,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:24,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:24,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016705018] [2023-11-19 08:01:24,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016705018] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:24,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:24,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:01:24,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454864453] [2023-11-19 08:01:24,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:24,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:01:24,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:24,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:01:24,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:01:24,669 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 235 [2023-11-19 08:01:24,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 33 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:24,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:01:24,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 235 [2023-11-19 08:01:24,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:01:25,248 INFO L124 PetriNetUnfolderBase]: 1459/2332 cut-off events. [2023-11-19 08:01:25,248 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-11-19 08:01:25,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4695 conditions, 2332 events. 1459/2332 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 12070 event pairs, 611 based on Foata normal form. 162/1918 useless extension candidates. Maximal degree in co-relation 4684. Up to 1969 conditions per place. [2023-11-19 08:01:25,277 INFO L140 encePairwiseOnDemand]: 223/235 looper letters, 40 selfloop transitions, 4 changer transitions 0/48 dead transitions. [2023-11-19 08:01:25,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 48 transitions, 199 flow [2023-11-19 08:01:25,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:01:25,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:01:25,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 371 transitions. [2023-11-19 08:01:25,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.526241134751773 [2023-11-19 08:01:25,300 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 371 transitions. [2023-11-19 08:01:25,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 371 transitions. [2023-11-19 08:01:25,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:01:25,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 371 transitions. [2023-11-19 08:01:25,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:25,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:25,321 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:25,323 INFO L175 Difference]: Start difference. First operand has 42 places, 33 transitions, 75 flow. Second operand 3 states and 371 transitions. [2023-11-19 08:01:25,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 48 transitions, 199 flow [2023-11-19 08:01:25,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 48 transitions, 194 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 08:01:25,332 INFO L231 Difference]: Finished difference. Result has 42 places, 35 transitions, 108 flow [2023-11-19 08:01:25,334 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=42, PETRI_TRANSITIONS=35} [2023-11-19 08:01:25,341 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 0 predicate places. [2023-11-19 08:01:25,341 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 35 transitions, 108 flow [2023-11-19 08:01:25,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:25,342 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:01:25,342 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:25,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:01:25,343 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 08:01:25,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:25,353 INFO L85 PathProgramCache]: Analyzing trace with hash 824352020, now seen corresponding path program 1 times [2023-11-19 08:01:25,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:25,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315006665] [2023-11-19 08:01:25,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:25,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:25,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:25,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:25,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315006665] [2023-11-19 08:01:25,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315006665] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:25,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:25,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:01:25,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522824054] [2023-11-19 08:01:25,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:25,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:01:25,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:25,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:01:25,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:25,575 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 235 [2023-11-19 08:01:25,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 35 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:25,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:01:25,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 235 [2023-11-19 08:01:25,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:01:25,972 INFO L124 PetriNetUnfolderBase]: 1099/1764 cut-off events. [2023-11-19 08:01:25,972 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES. [2023-11-19 08:01:25,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4207 conditions, 1764 events. 1099/1764 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 8799 event pairs, 403 based on Foata normal form. 0/1564 useless extension candidates. Maximal degree in co-relation 4196. Up to 1400 conditions per place. [2023-11-19 08:01:25,990 INFO L140 encePairwiseOnDemand]: 228/235 looper letters, 37 selfloop transitions, 4 changer transitions 0/45 dead transitions. [2023-11-19 08:01:25,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 45 transitions, 208 flow [2023-11-19 08:01:25,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:01:25,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 08:01:25,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 468 transitions. [2023-11-19 08:01:25,994 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4978723404255319 [2023-11-19 08:01:25,994 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 468 transitions. [2023-11-19 08:01:25,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 468 transitions. [2023-11-19 08:01:25,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:01:25,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 468 transitions. [2023-11-19 08:01:25,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:26,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 235.0) internal successors, (1175), 5 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:26,002 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 235.0) internal successors, (1175), 5 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:26,003 INFO L175 Difference]: Start difference. First operand has 42 places, 35 transitions, 108 flow. Second operand 4 states and 468 transitions. [2023-11-19 08:01:26,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 45 transitions, 208 flow [2023-11-19 08:01:26,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 45 transitions, 204 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:01:26,005 INFO L231 Difference]: Finished difference. Result has 41 places, 32 transitions, 100 flow [2023-11-19 08:01:26,006 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=100, PETRI_PLACES=41, PETRI_TRANSITIONS=32} [2023-11-19 08:01:26,007 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -1 predicate places. [2023-11-19 08:01:26,007 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 32 transitions, 100 flow [2023-11-19 08:01:26,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:26,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:01:26,008 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:26,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:01:26,009 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 08:01:26,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:26,010 INFO L85 PathProgramCache]: Analyzing trace with hash 824352021, now seen corresponding path program 1 times [2023-11-19 08:01:26,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:26,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419019335] [2023-11-19 08:01:26,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:26,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:26,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:26,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:26,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419019335] [2023-11-19 08:01:26,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419019335] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:26,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:26,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:01:26,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913551838] [2023-11-19 08:01:26,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:26,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:01:26,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:26,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:01:26,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:26,118 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 235 [2023-11-19 08:01:26,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 32 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:26,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:01:26,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 235 [2023-11-19 08:01:26,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:01:26,378 INFO L124 PetriNetUnfolderBase]: 500/851 cut-off events. [2023-11-19 08:01:26,379 INFO L125 PetriNetUnfolderBase]: For 237/237 co-relation queries the response was YES. [2023-11-19 08:01:26,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2017 conditions, 851 events. 500/851 cut-off events. For 237/237 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3849 event pairs, 217 based on Foata normal form. 40/863 useless extension candidates. Maximal degree in co-relation 2005. Up to 330 conditions per place. [2023-11-19 08:01:26,386 INFO L140 encePairwiseOnDemand]: 227/235 looper letters, 45 selfloop transitions, 7 changer transitions 3/59 dead transitions. [2023-11-19 08:01:26,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 59 transitions, 276 flow [2023-11-19 08:01:26,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:01:26,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 08:01:26,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 483 transitions. [2023-11-19 08:01:26,390 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5138297872340426 [2023-11-19 08:01:26,390 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 483 transitions. [2023-11-19 08:01:26,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 483 transitions. [2023-11-19 08:01:26,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:01:26,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 483 transitions. [2023-11-19 08:01:26,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 120.75) internal successors, (483), 4 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:26,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 235.0) internal successors, (1175), 5 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:26,397 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 235.0) internal successors, (1175), 5 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:26,397 INFO L175 Difference]: Start difference. First operand has 41 places, 32 transitions, 100 flow. Second operand 4 states and 483 transitions. [2023-11-19 08:01:26,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 59 transitions, 276 flow [2023-11-19 08:01:26,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 59 transitions, 271 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:01:26,400 INFO L231 Difference]: Finished difference. Result has 43 places, 32 transitions, 123 flow [2023-11-19 08:01:26,401 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=123, PETRI_PLACES=43, PETRI_TRANSITIONS=32} [2023-11-19 08:01:26,402 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 1 predicate places. [2023-11-19 08:01:26,402 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 32 transitions, 123 flow [2023-11-19 08:01:26,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:26,403 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:01:26,403 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:26,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:01:26,404 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 08:01:26,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:26,404 INFO L85 PathProgramCache]: Analyzing trace with hash 685564428, now seen corresponding path program 1 times [2023-11-19 08:01:26,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:26,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50374831] [2023-11-19 08:01:26,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:26,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:26,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:26,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:26,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50374831] [2023-11-19 08:01:26,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50374831] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:26,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:26,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:01:26,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547075001] [2023-11-19 08:01:26,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:26,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:01:26,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:26,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:01:26,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:01:26,668 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 235 [2023-11-19 08:01:26,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 32 transitions, 123 flow. Second operand has 5 states, 5 states have (on average 109.4) internal successors, (547), 5 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:26,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:01:26,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 235 [2023-11-19 08:01:26,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:01:26,903 INFO L124 PetriNetUnfolderBase]: 436/719 cut-off events. [2023-11-19 08:01:26,903 INFO L125 PetriNetUnfolderBase]: For 486/486 co-relation queries the response was YES. [2023-11-19 08:01:26,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1895 conditions, 719 events. 436/719 cut-off events. For 486/486 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3234 event pairs, 201 based on Foata normal form. 17/726 useless extension candidates. Maximal degree in co-relation 1882. Up to 330 conditions per place. [2023-11-19 08:01:26,906 INFO L140 encePairwiseOnDemand]: 227/235 looper letters, 0 selfloop transitions, 0 changer transitions 49/49 dead transitions. [2023-11-19 08:01:26,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 49 transitions, 237 flow [2023-11-19 08:01:26,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:01:26,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 08:01:26,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 579 transitions. [2023-11-19 08:01:26,909 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4927659574468085 [2023-11-19 08:01:26,910 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 579 transitions. [2023-11-19 08:01:26,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 579 transitions. [2023-11-19 08:01:26,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:01:26,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 579 transitions. [2023-11-19 08:01:26,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 115.8) internal successors, (579), 5 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:26,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 235.0) internal successors, (1410), 6 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:26,917 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 235.0) internal successors, (1410), 6 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:26,917 INFO L175 Difference]: Start difference. First operand has 43 places, 32 transitions, 123 flow. Second operand 5 states and 579 transitions. [2023-11-19 08:01:26,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 49 transitions, 237 flow [2023-11-19 08:01:26,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 49 transitions, 213 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-11-19 08:01:26,921 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2023-11-19 08:01:26,921 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2023-11-19 08:01:26,922 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -6 predicate places. [2023-11-19 08:01:26,922 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2023-11-19 08:01:26,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 109.4) internal successors, (547), 5 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:26,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-19 08:01:26,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-19 08:01:26,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-19 08:01:26,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-19 08:01:26,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-19 08:01:26,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-19 08:01:26,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-19 08:01:26,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-19 08:01:26,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-19 08:01:26,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-19 08:01:26,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-19 08:01:26,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-19 08:01:26,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-19 08:01:26,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-19 08:01:26,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-19 08:01:26,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:01:26,930 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 08:01:26,935 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 08:01:26,935 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:01:26,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:01:26 BasicIcfg [2023-11-19 08:01:26,940 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:01:26,940 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:01:26,940 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:01:26,941 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:01:26,941 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:19" (3/4) ... [2023-11-19 08:01:26,943 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 08:01:26,946 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 08:01:26,946 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 08:01:26,946 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-19 08:01:26,951 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-19 08:01:26,952 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 08:01:26,952 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 08:01:26,952 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 08:01:27,043 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f846ad5-3f8e-43a2-b6cc-dec02e5b8fe3/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:01:27,043 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f846ad5-3f8e-43a2-b6cc-dec02e5b8fe3/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 08:01:27,043 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:01:27,044 INFO L158 Benchmark]: Toolchain (without parser) took 9762.04ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 118.5MB in the beginning and 118.8MB in the end (delta: -226.0kB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2023-11-19 08:01:27,044 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:01:27,045 INFO L158 Benchmark]: CACSL2BoogieTranslator took 784.21ms. Allocated memory is still 151.0MB. Free memory was 118.5MB in the beginning and 95.0MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 08:01:27,045 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.22ms. Allocated memory is still 151.0MB. Free memory was 95.0MB in the beginning and 92.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:01:27,045 INFO L158 Benchmark]: Boogie Preprocessor took 71.49ms. Allocated memory is still 151.0MB. Free memory was 92.3MB in the beginning and 90.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:01:27,046 INFO L158 Benchmark]: RCFGBuilder took 900.34ms. Allocated memory is still 151.0MB. Free memory was 90.4MB in the beginning and 120.0MB in the end (delta: -29.6MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2023-11-19 08:01:27,046 INFO L158 Benchmark]: TraceAbstraction took 7779.13ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 119.2MB in the beginning and 124.0MB in the end (delta: -4.8MB). Peak memory consumption was 110.1MB. Max. memory is 16.1GB. [2023-11-19 08:01:27,047 INFO L158 Benchmark]: Witness Printer took 103.00ms. Allocated memory is still 182.5MB. Free memory was 124.0MB in the beginning and 118.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 08:01:27,049 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 784.21ms. Allocated memory is still 151.0MB. Free memory was 118.5MB in the beginning and 95.0MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.22ms. Allocated memory is still 151.0MB. Free memory was 95.0MB in the beginning and 92.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.49ms. Allocated memory is still 151.0MB. Free memory was 92.3MB in the beginning and 90.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 900.34ms. Allocated memory is still 151.0MB. Free memory was 90.4MB in the beginning and 120.0MB in the end (delta: -29.6MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7779.13ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 119.2MB in the beginning and 124.0MB in the end (delta: -4.8MB). Peak memory consumption was 110.1MB. Max. memory is 16.1GB. * Witness Printer took 103.00ms. Allocated memory is still 182.5MB. Free memory was 124.0MB in the beginning and 118.8MB in the end (delta: 5.2MB). 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, 133 PlacesBefore, 42 PlacesAfterwards, 126 TransitionsBefore, 33 TransitionsAfterwards, 3382 CoEnabledTransitionPairs, 7 FixpointIterations, 42 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 106 TotalNumberOfCompositions, 12173 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3769, independent: 3438, independent conditional: 0, independent unconditional: 3438, dependent: 331, dependent conditional: 0, dependent unconditional: 331, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1838, independent: 1781, independent conditional: 0, independent unconditional: 1781, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3769, independent: 1657, independent conditional: 0, independent unconditional: 1657, dependent: 274, dependent conditional: 0, dependent unconditional: 274, unknown: 1838, unknown conditional: 0, unknown unconditional: 1838] , Statistics on independence cache: Total cache size (in pairs): 235, Positive cache size: 208, Positive conditional cache size: 0, Positive unconditional cache size: 208, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 781]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 781]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 840]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 840]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 164 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 101 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 268 IncrementalHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 3 mSDtfsCounter, 268 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=123occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 156 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 08:01:27,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f846ad5-3f8e-43a2-b6cc-dec02e5b8fe3/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE