./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe019_power.opt.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_d44d2e57-fd8f-45ef-94f0-cafcbbb8a930/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44d2e57-fd8f-45ef-94f0-cafcbbb8a930/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_d44d2e57-fd8f-45ef-94f0-cafcbbb8a930/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44d2e57-fd8f-45ef-94f0-cafcbbb8a930/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe019_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44d2e57-fd8f-45ef-94f0-cafcbbb8a930/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_d44d2e57-fd8f-45ef-94f0-cafcbbb8a930/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 57c8b47d74ada5c94291d16aafebbb644062493fff61510a323122bcd88ba5b1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:33:48,123 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:33:48,236 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44d2e57-fd8f-45ef-94f0-cafcbbb8a930/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:33:48,242 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:33:48,243 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:33:48,274 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:33:48,275 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:33:48,276 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:33:48,277 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:33:48,278 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:33:48,279 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:33:48,279 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:33:48,280 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:33:48,281 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:33:48,281 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:33:48,282 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:33:48,283 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:33:48,284 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:33:48,284 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:33:48,285 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:33:48,285 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:33:48,286 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:33:48,287 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:33:48,287 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:33:48,288 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:33:48,288 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:33:48,289 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:33:48,289 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:33:48,290 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:33:48,290 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:33:48,291 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:33:48,291 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:33:48,292 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:33:48,292 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:33:48,293 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:33:48,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:33:48,294 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:33:48,294 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:33:48,295 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:33:48,295 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:33:48,295 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:33:48,296 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_d44d2e57-fd8f-45ef-94f0-cafcbbb8a930/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44d2e57-fd8f-45ef-94f0-cafcbbb8a930/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57c8b47d74ada5c94291d16aafebbb644062493fff61510a323122bcd88ba5b1 [2023-11-19 07:33:48,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:33:48,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:33:48,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:33:48,667 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:33:48,667 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:33:48,669 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44d2e57-fd8f-45ef-94f0-cafcbbb8a930/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/safe019_power.opt.i [2023-11-19 07:33:52,011 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:33:52,403 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:33:52,404 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44d2e57-fd8f-45ef-94f0-cafcbbb8a930/sv-benchmarks/c/pthread-wmm/safe019_power.opt.i [2023-11-19 07:33:52,437 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44d2e57-fd8f-45ef-94f0-cafcbbb8a930/bin/uautomizer-verify-uCwYo4JHxu/data/b88e0159c/ac201602ad564119894852a5df668ad7/FLAG7897c235d [2023-11-19 07:33:52,454 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44d2e57-fd8f-45ef-94f0-cafcbbb8a930/bin/uautomizer-verify-uCwYo4JHxu/data/b88e0159c/ac201602ad564119894852a5df668ad7 [2023-11-19 07:33:52,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:33:52,459 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:33:52,461 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:33:52,461 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:33:52,469 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:33:52,470 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:33:52" (1/1) ... [2023-11-19 07:33:52,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44daf283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:52, skipping insertion in model container [2023-11-19 07:33:52,475 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:33:52" (1/1) ... [2023-11-19 07:33:52,557 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:33:53,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:33:53,112 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:33:53,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:33:53,282 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:33:53,283 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:33:53,292 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:33:53,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:53 WrapperNode [2023-11-19 07:33:53,294 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:33:53,295 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:33:53,296 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:33:53,297 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:33:53,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:53" (1/1) ... [2023-11-19 07:33:53,353 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:53" (1/1) ... [2023-11-19 07:33:53,400 INFO L138 Inliner]: procedures = 177, calls = 89, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 201 [2023-11-19 07:33:53,402 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:33:53,403 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:33:53,404 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:33:53,405 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:33:53,416 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:53" (1/1) ... [2023-11-19 07:33:53,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:53" (1/1) ... [2023-11-19 07:33:53,434 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:53" (1/1) ... [2023-11-19 07:33:53,439 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:53" (1/1) ... [2023-11-19 07:33:53,459 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:53" (1/1) ... [2023-11-19 07:33:53,480 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:53" (1/1) ... [2023-11-19 07:33:53,491 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:53" (1/1) ... [2023-11-19 07:33:53,495 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:53" (1/1) ... [2023-11-19 07:33:53,501 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:33:53,502 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:33:53,503 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:33:53,503 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:33:53,504 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:53" (1/1) ... [2023-11-19 07:33:53,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:33:53,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44d2e57-fd8f-45ef-94f0-cafcbbb8a930/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:53,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44d2e57-fd8f-45ef-94f0-cafcbbb8a930/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:33:53,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44d2e57-fd8f-45ef-94f0-cafcbbb8a930/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:33:53,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:33:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:33:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:33:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:33:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:33:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:33:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 07:33:53,630 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 07:33:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 07:33:53,630 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 07:33:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 07:33:53,631 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 07:33:53,633 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-19 07:33:53,634 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-19 07:33:53,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:33:53,634 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:33:53,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:33:53,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:33:53,637 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:33:53,889 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:33:53,892 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:33:54,734 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:33:55,237 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:33:55,237 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:33:55,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:55 BoogieIcfgContainer [2023-11-19 07:33:55,245 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:33:55,248 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:33:55,248 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:33:55,252 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:33:55,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:33:52" (1/3) ... [2023-11-19 07:33:55,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@378498ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:55, skipping insertion in model container [2023-11-19 07:33:55,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:53" (2/3) ... [2023-11-19 07:33:55,254 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@378498ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:55, skipping insertion in model container [2023-11-19 07:33:55,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:55" (3/3) ... [2023-11-19 07:33:55,255 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_power.opt.i [2023-11-19 07:33:55,266 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:33:55,278 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:33:55,278 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-19 07:33:55,278 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:33:55,409 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:33:55,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 170 places, 160 transitions, 336 flow [2023-11-19 07:33:55,533 INFO L124 PetriNetUnfolderBase]: 3/156 cut-off events. [2023-11-19 07:33:55,534 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:33:55,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 156 events. 3/156 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 95 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2023-11-19 07:33:55,542 INFO L82 GeneralOperation]: Start removeDead. Operand has 170 places, 160 transitions, 336 flow [2023-11-19 07:33:55,549 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 166 places, 156 transitions, 324 flow [2023-11-19 07:33:55,553 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:33:55,564 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 166 places, 156 transitions, 324 flow [2023-11-19 07:33:55,567 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 166 places, 156 transitions, 324 flow [2023-11-19 07:33:55,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 166 places, 156 transitions, 324 flow [2023-11-19 07:33:55,631 INFO L124 PetriNetUnfolderBase]: 3/156 cut-off events. [2023-11-19 07:33:55,631 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:33:55,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 156 events. 3/156 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 95 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2023-11-19 07:33:55,639 INFO L119 LiptonReduction]: Number of co-enabled transitions 4246 [2023-11-19 07:34:06,804 INFO L134 LiptonReduction]: Checked pairs total: 13073 [2023-11-19 07:34:06,805 INFO L136 LiptonReduction]: Total number of compositions: 136 [2023-11-19 07:34:06,821 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:34:06,828 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;@15c53c7e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:34:06,829 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-19 07:34:06,833 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:34:06,834 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-19 07:34:06,834 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:34:06,834 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:06,835 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:34:06,835 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:34:06,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:06,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1022573569, now seen corresponding path program 1 times [2023-11-19 07:34:06,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:06,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037318257] [2023-11-19 07:34:06,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:06,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:07,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:07,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:07,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037318257] [2023-11-19 07:34:07,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037318257] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:07,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:07,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:34:07,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218926674] [2023-11-19 07:34:07,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:07,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:34:07,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:07,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:34:07,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:34:07,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 296 [2023-11-19 07:34:07,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 35 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:07,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:07,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 296 [2023-11-19 07:34:07,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:11,009 INFO L124 PetriNetUnfolderBase]: 12064/16175 cut-off events. [2023-11-19 07:34:11,010 INFO L125 PetriNetUnfolderBase]: For 123/123 co-relation queries the response was YES. [2023-11-19 07:34:11,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32618 conditions, 16175 events. 12064/16175 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 648. Compared 79583 event pairs, 12064 based on Foata normal form. 625/12978 useless extension candidates. Maximal degree in co-relation 32606. Up to 16125 conditions per place. [2023-11-19 07:34:11,178 INFO L140 encePairwiseOnDemand]: 290/296 looper letters, 28 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2023-11-19 07:34:11,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 30 transitions, 130 flow [2023-11-19 07:34:11,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:34:11,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:34:11,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 427 transitions. [2023-11-19 07:34:11,200 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48085585585585583 [2023-11-19 07:34:11,201 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 427 transitions. [2023-11-19 07:34:11,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 427 transitions. [2023-11-19 07:34:11,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:11,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 427 transitions. [2023-11-19 07:34:11,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:11,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 296.0) internal successors, (1184), 4 states have internal predecessors, (1184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:11,223 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 296.0) internal successors, (1184), 4 states have internal predecessors, (1184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:11,225 INFO L175 Difference]: Start difference. First operand has 47 places, 35 transitions, 82 flow. Second operand 3 states and 427 transitions. [2023-11-19 07:34:11,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 30 transitions, 130 flow [2023-11-19 07:34:11,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 30 transitions, 126 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:34:11,236 INFO L231 Difference]: Finished difference. Result has 41 places, 30 transitions, 70 flow [2023-11-19 07:34:11,238 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=41, PETRI_TRANSITIONS=30} [2023-11-19 07:34:11,246 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -6 predicate places. [2023-11-19 07:34:11,246 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 70 flow [2023-11-19 07:34:11,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:11,247 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:11,247 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:34:11,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:34:11,248 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:34:11,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:11,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1022573570, now seen corresponding path program 1 times [2023-11-19 07:34:11,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:11,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931155603] [2023-11-19 07:34:11,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:11,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:11,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:11,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:11,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:11,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931155603] [2023-11-19 07:34:11,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931155603] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:11,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:11,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:34:11,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546905782] [2023-11-19 07:34:11,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:11,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:34:11,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:11,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:34:11,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:34:11,403 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 296 [2023-11-19 07:34:11,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:11,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:11,405 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 296 [2023-11-19 07:34:11,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:13,610 INFO L124 PetriNetUnfolderBase]: 6491/9106 cut-off events. [2023-11-19 07:34:13,610 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:34:13,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18420 conditions, 9106 events. 6491/9106 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 413. Compared 45986 event pairs, 2230 based on Foata normal form. 0/7204 useless extension candidates. Maximal degree in co-relation 18414. Up to 8360 conditions per place. [2023-11-19 07:34:13,662 INFO L140 encePairwiseOnDemand]: 286/296 looper letters, 43 selfloop transitions, 5 changer transitions 0/49 dead transitions. [2023-11-19 07:34:13,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 49 transitions, 210 flow [2023-11-19 07:34:13,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:34:13,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:34:13,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2023-11-19 07:34:13,665 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5022522522522522 [2023-11-19 07:34:13,665 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 446 transitions. [2023-11-19 07:34:13,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 446 transitions. [2023-11-19 07:34:13,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:13,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 446 transitions. [2023-11-19 07:34:13,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:13,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 296.0) internal successors, (1184), 4 states have internal predecessors, (1184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:13,672 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 296.0) internal successors, (1184), 4 states have internal predecessors, (1184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:13,673 INFO L175 Difference]: Start difference. First operand has 41 places, 30 transitions, 70 flow. Second operand 3 states and 446 transitions. [2023-11-19 07:34:13,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 49 transitions, 210 flow [2023-11-19 07:34:13,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 49 transitions, 209 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:34:13,675 INFO L231 Difference]: Finished difference. Result has 43 places, 34 transitions, 110 flow [2023-11-19 07:34:13,675 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=43, PETRI_TRANSITIONS=34} [2023-11-19 07:34:13,676 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -4 predicate places. [2023-11-19 07:34:13,677 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 34 transitions, 110 flow [2023-11-19 07:34:13,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:13,678 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:13,678 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:13,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:34:13,678 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:34:13,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:13,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1433414241, now seen corresponding path program 1 times [2023-11-19 07:34:13,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:13,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845067615] [2023-11-19 07:34:13,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:13,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:13,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:13,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:13,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845067615] [2023-11-19 07:34:13,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845067615] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:13,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:13,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:34:13,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291177041] [2023-11-19 07:34:13,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:13,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:34:13,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:13,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:34:13,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:34:13,800 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 296 [2023-11-19 07:34:13,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 34 transitions, 110 flow. Second operand has 4 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:13,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:13,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 296 [2023-11-19 07:34:13,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:14,547 INFO L124 PetriNetUnfolderBase]: 2591/3840 cut-off events. [2023-11-19 07:34:14,547 INFO L125 PetriNetUnfolderBase]: For 343/343 co-relation queries the response was YES. [2023-11-19 07:34:14,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9417 conditions, 3840 events. 2591/3840 cut-off events. For 343/343 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 18133 event pairs, 790 based on Foata normal form. 108/3619 useless extension candidates. Maximal degree in co-relation 9409. Up to 2122 conditions per place. [2023-11-19 07:34:14,568 INFO L140 encePairwiseOnDemand]: 286/296 looper letters, 56 selfloop transitions, 9 changer transitions 0/66 dead transitions. [2023-11-19 07:34:14,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 66 transitions, 322 flow [2023-11-19 07:34:14,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:34:14,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:34:14,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 594 transitions. [2023-11-19 07:34:14,573 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5016891891891891 [2023-11-19 07:34:14,573 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 594 transitions. [2023-11-19 07:34:14,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 594 transitions. [2023-11-19 07:34:14,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:14,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 594 transitions. [2023-11-19 07:34:14,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 148.5) internal successors, (594), 4 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:14,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:14,581 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:14,581 INFO L175 Difference]: Start difference. First operand has 43 places, 34 transitions, 110 flow. Second operand 4 states and 594 transitions. [2023-11-19 07:34:14,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 66 transitions, 322 flow [2023-11-19 07:34:14,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 66 transitions, 317 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:34:14,588 INFO L231 Difference]: Finished difference. Result has 46 places, 38 transitions, 165 flow [2023-11-19 07:34:14,589 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=165, PETRI_PLACES=46, PETRI_TRANSITIONS=38} [2023-11-19 07:34:14,589 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -1 predicate places. [2023-11-19 07:34:14,590 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 38 transitions, 165 flow [2023-11-19 07:34:14,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:14,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:14,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:14,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:34:14,591 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:34:14,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:14,592 INFO L85 PathProgramCache]: Analyzing trace with hash -589000925, now seen corresponding path program 1 times [2023-11-19 07:34:14,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:14,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947131273] [2023-11-19 07:34:14,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:14,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:14,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:14,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:14,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:14,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947131273] [2023-11-19 07:34:14,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947131273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:14,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:14,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:34:14,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480384756] [2023-11-19 07:34:14,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:14,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:34:14,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:14,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:34:14,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:34:14,777 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 296 [2023-11-19 07:34:14,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 165 flow. Second operand has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:14,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:14,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 296 [2023-11-19 07:34:14,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:15,484 INFO L124 PetriNetUnfolderBase]: 1691/2466 cut-off events. [2023-11-19 07:34:15,484 INFO L125 PetriNetUnfolderBase]: For 1497/1497 co-relation queries the response was YES. [2023-11-19 07:34:15,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6714 conditions, 2466 events. 1691/2466 cut-off events. For 1497/1497 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 10663 event pairs, 508 based on Foata normal form. 54/2485 useless extension candidates. Maximal degree in co-relation 6704. Up to 972 conditions per place. [2023-11-19 07:34:15,499 INFO L140 encePairwiseOnDemand]: 286/296 looper letters, 63 selfloop transitions, 13 changer transitions 4/81 dead transitions. [2023-11-19 07:34:15,499 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 81 transitions, 439 flow [2023-11-19 07:34:15,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:34:15,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:34:15,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 740 transitions. [2023-11-19 07:34:15,502 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-11-19 07:34:15,503 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 740 transitions. [2023-11-19 07:34:15,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 740 transitions. [2023-11-19 07:34:15,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:15,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 740 transitions. [2023-11-19 07:34:15,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 148.0) internal successors, (740), 5 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:15,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 296.0) internal successors, (1776), 6 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:15,511 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 296.0) internal successors, (1776), 6 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:15,511 INFO L175 Difference]: Start difference. First operand has 46 places, 38 transitions, 165 flow. Second operand 5 states and 740 transitions. [2023-11-19 07:34:15,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 81 transitions, 439 flow [2023-11-19 07:34:15,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 81 transitions, 421 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-11-19 07:34:15,519 INFO L231 Difference]: Finished difference. Result has 49 places, 38 transitions, 191 flow [2023-11-19 07:34:15,520 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=191, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2023-11-19 07:34:15,520 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 2 predicate places. [2023-11-19 07:34:15,521 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 191 flow [2023-11-19 07:34:15,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:15,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:15,522 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 07:34:15,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:34:15,522 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:34:15,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:15,523 INFO L85 PathProgramCache]: Analyzing trace with hash -706721720, now seen corresponding path program 1 times [2023-11-19 07:34:15,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:15,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346840920] [2023-11-19 07:34:15,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:15,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:15,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:15,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:15,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346840920] [2023-11-19 07:34:15,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346840920] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:15,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:15,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:34:15,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010452716] [2023-11-19 07:34:15,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:15,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:34:15,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:15,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:34:15,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:34:15,738 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 296 [2023-11-19 07:34:15,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 191 flow. Second operand has 6 states, 6 states have (on average 134.33333333333334) internal successors, (806), 6 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:15,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:15,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 296 [2023-11-19 07:34:15,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:16,470 INFO L124 PetriNetUnfolderBase]: 1616/2313 cut-off events. [2023-11-19 07:34:16,470 INFO L125 PetriNetUnfolderBase]: For 1795/1795 co-relation queries the response was YES. [2023-11-19 07:34:16,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6463 conditions, 2313 events. 1616/2313 cut-off events. For 1795/1795 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 9923 event pairs, 488 based on Foata normal form. 20/2322 useless extension candidates. Maximal degree in co-relation 6452. Up to 972 conditions per place. [2023-11-19 07:34:16,480 INFO L140 encePairwiseOnDemand]: 286/296 looper letters, 0 selfloop transitions, 0 changer transitions 69/69 dead transitions. [2023-11-19 07:34:16,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 69 transitions, 371 flow [2023-11-19 07:34:16,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:34:16,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:34:16,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 859 transitions. [2023-11-19 07:34:16,484 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48367117117117114 [2023-11-19 07:34:16,485 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 859 transitions. [2023-11-19 07:34:16,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 859 transitions. [2023-11-19 07:34:16,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:16,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 859 transitions. [2023-11-19 07:34:16,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 143.16666666666666) internal successors, (859), 6 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:16,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 296.0) internal successors, (2072), 7 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:16,496 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 296.0) internal successors, (2072), 7 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:16,496 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 191 flow. Second operand 6 states and 859 transitions. [2023-11-19 07:34:16,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 69 transitions, 371 flow [2023-11-19 07:34:16,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 69 transitions, 316 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-19 07:34:16,535 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2023-11-19 07:34:16,535 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2023-11-19 07:34:16,538 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -7 predicate places. [2023-11-19 07:34:16,538 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2023-11-19 07:34:16,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 134.33333333333334) internal successors, (806), 6 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:16,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-19 07:34:16,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-19 07:34:16,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-19 07:34:16,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-19 07:34:16,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-19 07:34:16,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-19 07:34:16,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-19 07:34:16,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-19 07:34:16,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-19 07:34:16,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-19 07:34:16,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-19 07:34:16,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-19 07:34:16,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-19 07:34:16,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-19 07:34:16,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-19 07:34:16,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-19 07:34:16,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-19 07:34:16,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-19 07:34:16,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-19 07:34:16,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-19 07:34:16,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:34:16,552 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-19 07:34:16,559 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:34:16,559 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:34:16,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:34:16 BasicIcfg [2023-11-19 07:34:16,565 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:34:16,565 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:34:16,565 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:34:16,566 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:34:16,566 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:55" (3/4) ... [2023-11-19 07:34:16,568 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:34:16,571 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 07:34:16,571 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 07:34:16,571 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-19 07:34:16,571 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-19 07:34:16,578 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-19 07:34:16,578 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:34:16,579 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-19 07:34:16,579 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:34:16,689 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44d2e57-fd8f-45ef-94f0-cafcbbb8a930/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:34:16,690 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44d2e57-fd8f-45ef-94f0-cafcbbb8a930/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:34:16,690 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:34:16,691 INFO L158 Benchmark]: Toolchain (without parser) took 24231.68ms. Allocated memory was 184.5MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 134.3MB in the beginning and 1.6GB in the end (delta: -1.4GB). Peak memory consumption was 161.7MB. Max. memory is 16.1GB. [2023-11-19 07:34:16,691 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 184.5MB. Free memory is still 157.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:34:16,691 INFO L158 Benchmark]: CACSL2BoogieTranslator took 833.41ms. Allocated memory is still 184.5MB. Free memory was 134.2MB in the beginning and 108.2MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-19 07:34:16,692 INFO L158 Benchmark]: Boogie Procedure Inliner took 107.20ms. Allocated memory is still 184.5MB. Free memory was 108.2MB in the beginning and 105.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:34:16,692 INFO L158 Benchmark]: Boogie Preprocessor took 98.42ms. Allocated memory is still 184.5MB. Free memory was 105.4MB in the beginning and 102.7MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:34:16,693 INFO L158 Benchmark]: RCFGBuilder took 1743.05ms. Allocated memory was 184.5MB in the beginning and 234.9MB in the end (delta: 50.3MB). Free memory was 102.6MB in the beginning and 114.2MB in the end (delta: -11.6MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2023-11-19 07:34:16,693 INFO L158 Benchmark]: TraceAbstraction took 21317.06ms. Allocated memory was 234.9MB in the beginning and 1.8GB in the end (delta: 1.5GB). Free memory was 114.2MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 523.9MB. Max. memory is 16.1GB. [2023-11-19 07:34:16,694 INFO L158 Benchmark]: Witness Printer took 124.91ms. Allocated memory is still 1.8GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:34:16,696 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 184.5MB. Free memory is still 157.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 833.41ms. Allocated memory is still 184.5MB. Free memory was 134.2MB in the beginning and 108.2MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 107.20ms. Allocated memory is still 184.5MB. Free memory was 108.2MB in the beginning and 105.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 98.42ms. Allocated memory is still 184.5MB. Free memory was 105.4MB in the beginning and 102.7MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1743.05ms. Allocated memory was 184.5MB in the beginning and 234.9MB in the end (delta: 50.3MB). Free memory was 102.6MB in the beginning and 114.2MB in the end (delta: -11.6MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. * TraceAbstraction took 21317.06ms. Allocated memory was 234.9MB in the beginning and 1.8GB in the end (delta: 1.5GB). Free memory was 114.2MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 523.9MB. Max. memory is 16.1GB. * Witness Printer took 124.91ms. Allocated memory is still 1.8GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 5.2MB). 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: 11.2s, 166 PlacesBefore, 47 PlacesAfterwards, 156 TransitionsBefore, 35 TransitionsAfterwards, 4246 CoEnabledTransitionPairs, 7 FixpointIterations, 60 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 136 TotalNumberOfCompositions, 13073 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4800, independent: 4474, independent conditional: 0, independent unconditional: 4474, dependent: 326, dependent conditional: 0, dependent unconditional: 326, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2198, independent: 2138, independent conditional: 0, independent unconditional: 2138, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4800, independent: 2336, independent conditional: 0, independent unconditional: 2336, dependent: 266, dependent conditional: 0, dependent unconditional: 266, unknown: 2198, unknown conditional: 0, unknown unconditional: 2198] , Statistics on independence cache: Total cache size (in pairs): 207, Positive cache size: 175, Positive conditional cache size: 0, Positive unconditional cache size: 175, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 787]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 787]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 814]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 814]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 850]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 850]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 867]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 867]: 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 9 procedures, 200 locations, 20 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: 21.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 226 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 212 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 345 IncrementalHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 4 mSDtfsCounter, 345 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=191occurred in iteration=4, InterpolantAutomatonStates: 21, 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, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 156 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 07:34:16,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44d2e57-fd8f-45ef-94f0-cafcbbb8a930/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE