./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.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_9d3b4c59-84a0-4151-acb6-424f95d234d6/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3b4c59-84a0-4151-acb6-424f95d234d6/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_9d3b4c59-84a0-4151-acb6-424f95d234d6/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3b4c59-84a0-4151-acb6-424f95d234d6/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3b4c59-84a0-4151-acb6-424f95d234d6/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_9d3b4c59-84a0-4151-acb6-424f95d234d6/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 4017723c7e4b1f7c431c7e7a6ea6ca9df8ac56fc590cd03021a11577cb455eff --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:43:46,369 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:43:46,456 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3b4c59-84a0-4151-acb6-424f95d234d6/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:43:46,462 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:43:46,463 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:43:46,491 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:43:46,492 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:43:46,493 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:43:46,494 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:43:46,495 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:43:46,495 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:43:46,496 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:43:46,497 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:43:46,497 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:43:46,498 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:43:46,499 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:43:46,499 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:43:46,500 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:43:46,501 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:43:46,501 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:43:46,502 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:43:46,503 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:43:46,503 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:43:46,504 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:43:46,504 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:43:46,505 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:43:46,506 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:43:46,506 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:43:46,507 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:43:46,507 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:43:46,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:43:46,508 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:43:46,509 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:43:46,509 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:43:46,510 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:43:46,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:43:46,510 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:43:46,511 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:43:46,511 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:43:46,512 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:43:46,512 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:43:46,513 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_9d3b4c59-84a0-4151-acb6-424f95d234d6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3b4c59-84a0-4151-acb6-424f95d234d6/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4017723c7e4b1f7c431c7e7a6ea6ca9df8ac56fc590cd03021a11577cb455eff [2023-11-19 07:43:46,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:43:46,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:43:46,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:43:46,797 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:43:46,798 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:43:46,800 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3b4c59-84a0-4151-acb6-424f95d234d6/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i [2023-11-19 07:43:50,212 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:43:50,523 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:43:50,524 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3b4c59-84a0-4151-acb6-424f95d234d6/sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i [2023-11-19 07:43:50,544 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3b4c59-84a0-4151-acb6-424f95d234d6/bin/uautomizer-verify-uCwYo4JHxu/data/cc978fb93/8d5d6d3adcd6459c9085460b20d15150/FLAGd6e77ff03 [2023-11-19 07:43:50,562 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3b4c59-84a0-4151-acb6-424f95d234d6/bin/uautomizer-verify-uCwYo4JHxu/data/cc978fb93/8d5d6d3adcd6459c9085460b20d15150 [2023-11-19 07:43:50,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:43:50,568 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:43:50,570 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:50,570 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:43:50,577 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:43:50,578 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:50" (1/1) ... [2023-11-19 07:43:50,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23e19dab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:50, skipping insertion in model container [2023-11-19 07:43:50,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:50" (1/1) ... [2023-11-19 07:43:50,633 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:43:50,999 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:51,017 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:43:51,078 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:51,123 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:43:51,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:51 WrapperNode [2023-11-19 07:43:51,123 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:51,125 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:51,125 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:43:51,125 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:43:51,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:51" (1/1) ... [2023-11-19 07:43:51,159 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:51" (1/1) ... [2023-11-19 07:43:51,194 INFO L138 Inliner]: procedures = 162, calls = 25, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 91 [2023-11-19 07:43:51,194 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:51,195 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:43:51,195 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:43:51,195 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:43:51,205 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:51" (1/1) ... [2023-11-19 07:43:51,206 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:51" (1/1) ... [2023-11-19 07:43:51,209 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:51" (1/1) ... [2023-11-19 07:43:51,209 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:51" (1/1) ... [2023-11-19 07:43:51,216 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:51" (1/1) ... [2023-11-19 07:43:51,219 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:51" (1/1) ... [2023-11-19 07:43:51,221 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:51" (1/1) ... [2023-11-19 07:43:51,223 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:51" (1/1) ... [2023-11-19 07:43:51,226 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:43:51,227 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:43:51,228 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:43:51,234 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:43:51,235 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:51" (1/1) ... [2023-11-19 07:43:51,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:43:51,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3b4c59-84a0-4151-acb6-424f95d234d6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:51,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3b4c59-84a0-4151-acb6-424f95d234d6/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:43:51,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3b4c59-84a0-4151-acb6-424f95d234d6/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:43:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:43:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:43:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:43:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:43:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:43:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-19 07:43:51,329 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-19 07:43:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:43:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:43:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:43:51,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:43:51,332 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 07:43:51,557 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:43:51,559 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:43:51,818 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:43:51,850 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:43:51,851 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:43:51,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:51 BoogieIcfgContainer [2023-11-19 07:43:51,855 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:43:51,858 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:43:51,858 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:43:51,861 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:43:51,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:43:50" (1/3) ... [2023-11-19 07:43:51,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@347a97d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:51, skipping insertion in model container [2023-11-19 07:43:51,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:51" (2/3) ... [2023-11-19 07:43:51,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@347a97d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:51, skipping insertion in model container [2023-11-19 07:43:51,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:51" (3/3) ... [2023-11-19 07:43:51,865 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_25-struct_nr_true.i [2023-11-19 07:43:51,874 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:43:51,886 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:43:51,886 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-19 07:43:51,887 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:43:51,957 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 07:43:51,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 116 transitions, 239 flow [2023-11-19 07:43:52,048 INFO L124 PetriNetUnfolderBase]: 8/115 cut-off events. [2023-11-19 07:43:52,048 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:43:52,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 115 events. 8/115 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 160 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2023-11-19 07:43:52,055 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 116 transitions, 239 flow [2023-11-19 07:43:52,060 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 107 transitions, 217 flow [2023-11-19 07:43:52,064 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:43:52,074 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 107 transitions, 217 flow [2023-11-19 07:43:52,077 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 107 transitions, 217 flow [2023-11-19 07:43:52,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 107 transitions, 217 flow [2023-11-19 07:43:52,112 INFO L124 PetriNetUnfolderBase]: 8/107 cut-off events. [2023-11-19 07:43:52,112 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:43:52,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 107 events. 8/107 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 160 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2023-11-19 07:43:52,117 INFO L119 LiptonReduction]: Number of co-enabled transitions 2584 [2023-11-19 07:43:54,990 INFO L134 LiptonReduction]: Checked pairs total: 5384 [2023-11-19 07:43:54,992 INFO L136 LiptonReduction]: Total number of compositions: 125 [2023-11-19 07:43:55,023 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:43:55,033 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;@5e01b959, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:43:55,034 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-19 07:43:55,040 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:43:55,040 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2023-11-19 07:43:55,040 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:43:55,041 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:43:55,041 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 07:43:55,042 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-19 07:43:55,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:55,051 INFO L85 PathProgramCache]: Analyzing trace with hash 14130329, now seen corresponding path program 1 times [2023-11-19 07:43:55,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:55,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484326388] [2023-11-19 07:43:55,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:55,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:55,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:55,359 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 07:43:55,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:55,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484326388] [2023-11-19 07:43:55,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484326388] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:55,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:55,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:43:55,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181364244] [2023-11-19 07:43:55,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:55,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:55,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:55,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:55,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:55,445 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 241 [2023-11-19 07:43:55,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 25 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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 07:43:55,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:43:55,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 241 [2023-11-19 07:43:55,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:43:55,620 INFO L124 PetriNetUnfolderBase]: 95/225 cut-off events. [2023-11-19 07:43:55,621 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:43:55,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 225 events. 95/225 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 950 event pairs, 35 based on Foata normal form. 32/196 useless extension candidates. Maximal degree in co-relation 446. Up to 114 conditions per place. [2023-11-19 07:43:55,628 INFO L140 encePairwiseOnDemand]: 225/241 looper letters, 23 selfloop transitions, 8 changer transitions 6/37 dead transitions. [2023-11-19 07:43:55,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 37 transitions, 151 flow [2023-11-19 07:43:55,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:55,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:43:55,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 339 transitions. [2023-11-19 07:43:55,660 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46887966804979253 [2023-11-19 07:43:55,661 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 339 transitions. [2023-11-19 07:43:55,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 339 transitions. [2023-11-19 07:43:55,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:43:55,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 339 transitions. [2023-11-19 07:43:55,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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 07:43:55,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 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 07:43:55,689 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 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 07:43:55,692 INFO L175 Difference]: Start difference. First operand has 25 places, 25 transitions, 53 flow. Second operand 3 states and 339 transitions. [2023-11-19 07:43:55,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 37 transitions, 151 flow [2023-11-19 07:43:55,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 37 transitions, 150 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:43:55,699 INFO L231 Difference]: Finished difference. Result has 28 places, 25 transitions, 104 flow [2023-11-19 07:43:55,701 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=28, PETRI_TRANSITIONS=25} [2023-11-19 07:43:55,708 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 3 predicate places. [2023-11-19 07:43:55,709 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 25 transitions, 104 flow [2023-11-19 07:43:55,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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 07:43:55,710 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:43:55,710 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 07:43:55,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:43:55,711 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-19 07:43:55,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:55,712 INFO L85 PathProgramCache]: Analyzing trace with hash 14130331, now seen corresponding path program 1 times [2023-11-19 07:43:55,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:55,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375751283] [2023-11-19 07:43:55,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:55,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:55,859 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 07:43:55,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:55,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375751283] [2023-11-19 07:43:55,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375751283] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:55,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:55,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:43:55,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114493967] [2023-11-19 07:43:55,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:55,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:55,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:55,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:55,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:55,886 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 241 [2023-11-19 07:43:55,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 25 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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 07:43:55,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:43:55,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 241 [2023-11-19 07:43:55,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:43:55,988 INFO L124 PetriNetUnfolderBase]: 45/132 cut-off events. [2023-11-19 07:43:55,989 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2023-11-19 07:43:55,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 132 events. 45/132 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 525 event pairs, 17 based on Foata normal form. 16/148 useless extension candidates. Maximal degree in co-relation 362. Up to 80 conditions per place. [2023-11-19 07:43:55,999 INFO L140 encePairwiseOnDemand]: 230/241 looper letters, 27 selfloop transitions, 9 changer transitions 0/36 dead transitions. [2023-11-19 07:43:55,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 36 transitions, 214 flow [2023-11-19 07:43:56,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:56,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:43:56,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 323 transitions. [2023-11-19 07:43:56,005 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4467496542185339 [2023-11-19 07:43:56,005 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 323 transitions. [2023-11-19 07:43:56,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 323 transitions. [2023-11-19 07:43:56,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:43:56,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 323 transitions. [2023-11-19 07:43:56,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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 07:43:56,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 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 07:43:56,014 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 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 07:43:56,014 INFO L175 Difference]: Start difference. First operand has 28 places, 25 transitions, 104 flow. Second operand 3 states and 323 transitions. [2023-11-19 07:43:56,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 36 transitions, 214 flow [2023-11-19 07:43:56,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 36 transitions, 192 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:43:56,026 INFO L231 Difference]: Finished difference. Result has 27 places, 30 transitions, 162 flow [2023-11-19 07:43:56,026 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=27, PETRI_TRANSITIONS=30} [2023-11-19 07:43:56,027 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 2 predicate places. [2023-11-19 07:43:56,028 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 30 transitions, 162 flow [2023-11-19 07:43:56,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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 07:43:56,029 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:43:56,031 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:56,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:43:56,031 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-19 07:43:56,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:56,039 INFO L85 PathProgramCache]: Analyzing trace with hash 50212482, now seen corresponding path program 1 times [2023-11-19 07:43:56,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:56,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344583265] [2023-11-19 07:43:56,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:56,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:56,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:56,235 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 07:43:56,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:56,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344583265] [2023-11-19 07:43:56,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344583265] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:56,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:56,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:56,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266406899] [2023-11-19 07:43:56,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:56,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:56,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:56,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:56,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:56,267 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 241 [2023-11-19 07:43:56,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 30 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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 07:43:56,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:43:56,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 241 [2023-11-19 07:43:56,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:43:56,310 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2023-11-19 07:43:56,310 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-19 07:43:56,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 22 events. 0/22 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 12/34 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2023-11-19 07:43:56,311 INFO L140 encePairwiseOnDemand]: 238/241 looper letters, 13 selfloop transitions, 3 changer transitions 2/18 dead transitions. [2023-11-19 07:43:56,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 18 transitions, 118 flow [2023-11-19 07:43:56,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:56,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:43:56,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 310 transitions. [2023-11-19 07:43:56,314 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4287690179806362 [2023-11-19 07:43:56,314 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 310 transitions. [2023-11-19 07:43:56,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 310 transitions. [2023-11-19 07:43:56,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:43:56,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 310 transitions. [2023-11-19 07:43:56,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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 07:43:56,319 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 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 07:43:56,320 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 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 07:43:56,320 INFO L175 Difference]: Start difference. First operand has 27 places, 30 transitions, 162 flow. Second operand 3 states and 310 transitions. [2023-11-19 07:43:56,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 18 transitions, 118 flow [2023-11-19 07:43:56,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 96 flow, removed 6 selfloop flow, removed 2 redundant places. [2023-11-19 07:43:56,323 INFO L231 Difference]: Finished difference. Result has 26 places, 16 transitions, 62 flow [2023-11-19 07:43:56,323 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=26, PETRI_TRANSITIONS=16} [2023-11-19 07:43:56,324 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 1 predicate places. [2023-11-19 07:43:56,325 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 16 transitions, 62 flow [2023-11-19 07:43:56,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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 07:43:56,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:43:56,326 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:56,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:43:56,326 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-19 07:43:56,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:56,327 INFO L85 PathProgramCache]: Analyzing trace with hash 50187947, now seen corresponding path program 1 times [2023-11-19 07:43:56,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:56,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033914146] [2023-11-19 07:43:56,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:56,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:56,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:56,380 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 07:43:56,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:56,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033914146] [2023-11-19 07:43:56,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033914146] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:56,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:56,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:56,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421129691] [2023-11-19 07:43:56,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:56,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:56,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:56,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:56,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:56,403 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 241 [2023-11-19 07:43:56,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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 07:43:56,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:43:56,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 241 [2023-11-19 07:43:56,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:43:56,439 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2023-11-19 07:43:56,439 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:43:56,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 18 events. 0/18 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 2/20 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2023-11-19 07:43:56,440 INFO L140 encePairwiseOnDemand]: 235/241 looper letters, 8 selfloop transitions, 3 changer transitions 6/17 dead transitions. [2023-11-19 07:43:56,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 17 transitions, 100 flow [2023-11-19 07:43:56,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:56,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:43:56,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 309 transitions. [2023-11-19 07:43:56,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42738589211618255 [2023-11-19 07:43:56,443 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 309 transitions. [2023-11-19 07:43:56,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 309 transitions. [2023-11-19 07:43:56,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:43:56,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 309 transitions. [2023-11-19 07:43:56,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 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 07:43:56,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 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 07:43:56,449 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 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 07:43:56,449 INFO L175 Difference]: Start difference. First operand has 26 places, 16 transitions, 62 flow. Second operand 3 states and 309 transitions. [2023-11-19 07:43:56,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 17 transitions, 100 flow [2023-11-19 07:43:56,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 17 transitions, 96 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:43:56,451 INFO L231 Difference]: Finished difference. Result has 24 places, 11 transitions, 47 flow [2023-11-19 07:43:56,451 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=24, PETRI_TRANSITIONS=11} [2023-11-19 07:43:56,452 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -1 predicate places. [2023-11-19 07:43:56,452 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 11 transitions, 47 flow [2023-11-19 07:43:56,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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 07:43:56,453 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:43:56,453 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:56,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:43:56,454 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-19 07:43:56,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:56,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1054454316, now seen corresponding path program 1 times [2023-11-19 07:43:56,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:56,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533909731] [2023-11-19 07:43:56,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:56,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:56,534 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 07:43:56,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:56,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533909731] [2023-11-19 07:43:56,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533909731] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:56,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:56,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:56,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901409043] [2023-11-19 07:43:56,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:56,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:56,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:56,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:56,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:56,562 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 241 [2023-11-19 07:43:56,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 11 transitions, 47 flow. Second operand has 4 states, 4 states have (on average 97.5) internal successors, (390), 4 states have internal predecessors, (390), 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 07:43:56,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:43:56,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 241 [2023-11-19 07:43:56,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:43:56,614 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2023-11-19 07:43:56,614 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:43:56,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 11 events. 0/11 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/12 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2023-11-19 07:43:56,615 INFO L140 encePairwiseOnDemand]: 236/241 looper letters, 6 selfloop transitions, 4 changer transitions 1/11 dead transitions. [2023-11-19 07:43:56,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 11 transitions, 66 flow [2023-11-19 07:43:56,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:43:56,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:43:56,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 487 transitions. [2023-11-19 07:43:56,619 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.404149377593361 [2023-11-19 07:43:56,619 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 487 transitions. [2023-11-19 07:43:56,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 487 transitions. [2023-11-19 07:43:56,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:43:56,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 487 transitions. [2023-11-19 07:43:56,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 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 07:43:56,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 241.0) internal successors, (1446), 6 states have internal predecessors, (1446), 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 07:43:56,627 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 241.0) internal successors, (1446), 6 states have internal predecessors, (1446), 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 07:43:56,628 INFO L175 Difference]: Start difference. First operand has 24 places, 11 transitions, 47 flow. Second operand 5 states and 487 transitions. [2023-11-19 07:43:56,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 11 transitions, 66 flow [2023-11-19 07:43:56,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 11 transitions, 57 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:43:56,629 INFO L231 Difference]: Finished difference. Result has 20 places, 10 transitions, 40 flow [2023-11-19 07:43:56,630 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=40, PETRI_PLACES=20, PETRI_TRANSITIONS=10} [2023-11-19 07:43:56,631 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -5 predicate places. [2023-11-19 07:43:56,631 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 10 transitions, 40 flow [2023-11-19 07:43:56,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.5) internal successors, (390), 4 states have internal predecessors, (390), 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 07:43:56,632 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:43:56,632 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:56,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:43:56,633 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-19 07:43:56,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:56,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1054454314, now seen corresponding path program 1 times [2023-11-19 07:43:56,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:56,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500058700] [2023-11-19 07:43:56,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:56,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:56,708 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 07:43:56,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:56,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500058700] [2023-11-19 07:43:56,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500058700] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:56,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:56,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:56,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642451009] [2023-11-19 07:43:56,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:56,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:56,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:56,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:56,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:56,738 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 241 [2023-11-19 07:43:56,739 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 10 transitions, 40 flow. Second operand has 4 states, 4 states have (on average 97.5) internal successors, (390), 4 states have internal predecessors, (390), 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 07:43:56,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:43:56,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 241 [2023-11-19 07:43:56,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:43:56,767 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-11-19 07:43:56,767 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:43:56,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 10 events. 0/10 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/11 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2023-11-19 07:43:56,768 INFO L140 encePairwiseOnDemand]: 238/241 looper letters, 0 selfloop transitions, 0 changer transitions 10/10 dead transitions. [2023-11-19 07:43:56,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 10 transitions, 58 flow [2023-11-19 07:43:56,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:43:56,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:43:56,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 391 transitions. [2023-11-19 07:43:56,771 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40560165975103735 [2023-11-19 07:43:56,772 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 391 transitions. [2023-11-19 07:43:56,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 391 transitions. [2023-11-19 07:43:56,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:43:56,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 391 transitions. [2023-11-19 07:43:56,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 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 07:43:56,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 241.0) internal successors, (1205), 5 states have internal predecessors, (1205), 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 07:43:56,779 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 241.0) internal successors, (1205), 5 states have internal predecessors, (1205), 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 07:43:56,779 INFO L175 Difference]: Start difference. First operand has 20 places, 10 transitions, 40 flow. Second operand 4 states and 391 transitions. [2023-11-19 07:43:56,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 10 transitions, 58 flow [2023-11-19 07:43:56,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 10 transitions, 46 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-19 07:43:56,780 INFO L231 Difference]: Finished difference. Result has 16 places, 0 transitions, 0 flow [2023-11-19 07:43:56,781 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=23, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=16, PETRI_TRANSITIONS=0} [2023-11-19 07:43:56,782 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -9 predicate places. [2023-11-19 07:43:56,782 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 0 transitions, 0 flow [2023-11-19 07:43:56,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.5) internal successors, (390), 4 states have internal predecessors, (390), 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 07:43:56,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 5 remaining) [2023-11-19 07:43:56,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2023-11-19 07:43:56,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2023-11-19 07:43:56,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2023-11-19 07:43:56,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-11-19 07:43:56,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:43:56,788 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-19 07:43:56,792 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:43:56,792 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:43:56,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:43:56 BasicIcfg [2023-11-19 07:43:56,797 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:43:56,798 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:43:56,798 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:43:56,799 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:43:56,799 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:51" (3/4) ... [2023-11-19 07:43:56,802 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:43:56,808 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-19 07:43:56,814 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-19 07:43:56,814 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 07:43:56,815 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:43:56,815 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:43:56,923 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3b4c59-84a0-4151-acb6-424f95d234d6/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:43:56,923 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3b4c59-84a0-4151-acb6-424f95d234d6/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:43:56,924 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:43:56,925 INFO L158 Benchmark]: Toolchain (without parser) took 6356.55ms. Allocated memory was 155.2MB in the beginning and 218.1MB in the end (delta: 62.9MB). Free memory was 108.5MB in the beginning and 107.8MB in the end (delta: 716.6kB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2023-11-19 07:43:56,925 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 155.2MB. Free memory is still 99.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:43:56,926 INFO L158 Benchmark]: CACSL2BoogieTranslator took 553.95ms. Allocated memory is still 155.2MB. Free memory was 108.1MB in the beginning and 89.3MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:43:56,926 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.93ms. Allocated memory is still 155.2MB. Free memory was 89.3MB in the beginning and 87.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:43:56,927 INFO L158 Benchmark]: Boogie Preprocessor took 31.54ms. Allocated memory is still 155.2MB. Free memory was 87.2MB in the beginning and 85.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:43:56,927 INFO L158 Benchmark]: RCFGBuilder took 627.51ms. Allocated memory was 155.2MB in the beginning and 218.1MB in the end (delta: 62.9MB). Free memory was 85.6MB in the beginning and 187.4MB in the end (delta: -101.8MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2023-11-19 07:43:56,928 INFO L158 Benchmark]: TraceAbstraction took 4939.83ms. Allocated memory is still 218.1MB. Free memory was 186.7MB in the beginning and 112.0MB in the end (delta: 74.7MB). Peak memory consumption was 73.7MB. Max. memory is 16.1GB. [2023-11-19 07:43:56,928 INFO L158 Benchmark]: Witness Printer took 125.51ms. Allocated memory is still 218.1MB. Free memory was 112.0MB in the beginning and 107.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:43:56,931 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 155.2MB. Free memory is still 99.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 553.95ms. Allocated memory is still 155.2MB. Free memory was 108.1MB in the beginning and 89.3MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.93ms. Allocated memory is still 155.2MB. Free memory was 89.3MB in the beginning and 87.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.54ms. Allocated memory is still 155.2MB. Free memory was 87.2MB in the beginning and 85.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 627.51ms. Allocated memory was 155.2MB in the beginning and 218.1MB in the end (delta: 62.9MB). Free memory was 85.6MB in the beginning and 187.4MB in the end (delta: -101.8MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4939.83ms. Allocated memory is still 218.1MB. Free memory was 186.7MB in the beginning and 112.0MB in the end (delta: 74.7MB). Peak memory consumption was 73.7MB. Max. memory is 16.1GB. * Witness Printer took 125.51ms. Allocated memory is still 218.1MB. Free memory was 112.0MB in the beginning and 107.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 103 PlacesBefore, 25 PlacesAfterwards, 107 TransitionsBefore, 25 TransitionsAfterwards, 2584 CoEnabledTransitionPairs, 7 FixpointIterations, 36 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 17 ConcurrentYvCompositions, 4 ChoiceCompositions, 125 TotalNumberOfCompositions, 5384 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2817, independent: 2602, independent conditional: 0, independent unconditional: 2602, dependent: 215, dependent conditional: 0, dependent unconditional: 215, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1609, independent: 1562, independent conditional: 0, independent unconditional: 1562, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2817, independent: 1040, independent conditional: 0, independent unconditional: 1040, dependent: 168, dependent conditional: 0, dependent unconditional: 168, unknown: 1609, unknown conditional: 0, unknown unconditional: 1609] , Statistics on independence cache: Total cache size (in pairs): 51, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 704]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 704]: 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 3 procedures, 145 locations, 5 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: 4.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 214 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 101 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 261 IncrementalHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 42 mSDtfsCounter, 261 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred in iteration=2, 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, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 92 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 07:43:56,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3b4c59-84a0-4151-acb6-424f95d234d6/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