./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5b9d5-5998-4c19-a306-9fd5fbeed9ca/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5b9d5-5998-4c19-a306-9fd5fbeed9ca/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_c2f5b9d5-5998-4c19-a306-9fd5fbeed9ca/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5b9d5-5998-4c19-a306-9fd5fbeed9ca/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5b9d5-5998-4c19-a306-9fd5fbeed9ca/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_c2f5b9d5-5998-4c19-a306-9fd5fbeed9ca/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 a6d0914923ba77f2cbf67d52dc6ec759519359118cb2f8fd5f254f95bf2b938e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:46:29,299 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:46:29,407 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5b9d5-5998-4c19-a306-9fd5fbeed9ca/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:46:29,414 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:46:29,414 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:46:29,451 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:46:29,452 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:46:29,452 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:46:29,453 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:46:29,458 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:46:29,460 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:46:29,460 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:46:29,461 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:46:29,462 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:46:29,463 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:46:29,463 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:46:29,464 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:46:29,464 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:46:29,465 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:46:29,465 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:46:29,466 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:46:29,468 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:46:29,468 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:46:29,469 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:46:29,469 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:46:29,469 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:46:29,470 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:46:29,471 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:46:29,471 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:46:29,472 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:46:29,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:29,473 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:46:29,474 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:46:29,474 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:46:29,474 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:46:29,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:46:29,475 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:46:29,475 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:46:29,475 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:46:29,476 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:46:29,476 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:46:29,476 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_c2f5b9d5-5998-4c19-a306-9fd5fbeed9ca/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5b9d5-5998-4c19-a306-9fd5fbeed9ca/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6d0914923ba77f2cbf67d52dc6ec759519359118cb2f8fd5f254f95bf2b938e [2023-11-19 07:46:29,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:46:29,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:46:29,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:46:29,848 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:46:29,849 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:46:29,850 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5b9d5-5998-4c19-a306-9fd5fbeed9ca/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i [2023-11-19 07:46:32,867 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:46:33,226 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:46:33,227 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5b9d5-5998-4c19-a306-9fd5fbeed9ca/sv-benchmarks/c/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i [2023-11-19 07:46:33,248 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5b9d5-5998-4c19-a306-9fd5fbeed9ca/bin/uautomizer-verify-uCwYo4JHxu/data/bb07a85a8/ac55a7b0a02c42ab89097bc2a315b125/FLAG904c23920 [2023-11-19 07:46:33,264 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5b9d5-5998-4c19-a306-9fd5fbeed9ca/bin/uautomizer-verify-uCwYo4JHxu/data/bb07a85a8/ac55a7b0a02c42ab89097bc2a315b125 [2023-11-19 07:46:33,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:46:33,269 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:46:33,271 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:33,271 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:46:33,279 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:46:33,280 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:33" (1/1) ... [2023-11-19 07:46:33,281 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f848660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:33, skipping insertion in model container [2023-11-19 07:46:33,281 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:33" (1/1) ... [2023-11-19 07:46:33,373 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:46:33,870 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:33,882 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:46:33,945 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:33,991 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:46:33,993 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:46:34,001 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:46:34,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:34 WrapperNode [2023-11-19 07:46:34,002 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:34,004 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:34,004 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:46:34,005 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:46:34,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:34" (1/1) ... [2023-11-19 07:46:34,041 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:34" (1/1) ... [2023-11-19 07:46:34,073 INFO L138 Inliner]: procedures = 177, calls = 70, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 150 [2023-11-19 07:46:34,073 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:34,074 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:46:34,074 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:46:34,075 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:46:34,085 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:34" (1/1) ... [2023-11-19 07:46:34,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:34" (1/1) ... [2023-11-19 07:46:34,090 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:34" (1/1) ... [2023-11-19 07:46:34,090 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:34" (1/1) ... [2023-11-19 07:46:34,101 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:34" (1/1) ... [2023-11-19 07:46:34,104 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:34" (1/1) ... [2023-11-19 07:46:34,107 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:34" (1/1) ... [2023-11-19 07:46:34,110 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:34" (1/1) ... [2023-11-19 07:46:34,115 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:46:34,116 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:46:34,117 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:46:34,117 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:46:34,118 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:34" (1/1) ... [2023-11-19 07:46:34,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:34,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5b9d5-5998-4c19-a306-9fd5fbeed9ca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:34,162 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5b9d5-5998-4c19-a306-9fd5fbeed9ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:34,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5b9d5-5998-4c19-a306-9fd5fbeed9ca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:46:34,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:46:34,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:46:34,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:46:34,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:46:34,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:46:34,207 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 07:46:34,207 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 07:46:34,207 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 07:46:34,208 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 07:46:34,208 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 07:46:34,208 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 07:46:34,208 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-19 07:46:34,210 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-19 07:46:34,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:46:34,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:46:34,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:46:34,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:46:34,213 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 07:46:34,401 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:46:34,404 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:46:34,901 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:46:35,056 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:46:35,056 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:46:35,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:35 BoogieIcfgContainer [2023-11-19 07:46:35,061 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:46:35,063 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:46:35,063 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:46:35,067 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:46:35,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:46:33" (1/3) ... [2023-11-19 07:46:35,068 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b5bdb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:35, skipping insertion in model container [2023-11-19 07:46:35,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:34" (2/3) ... [2023-11-19 07:46:35,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b5bdb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:35, skipping insertion in model container [2023-11-19 07:46:35,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:35" (3/3) ... [2023-11-19 07:46:35,071 INFO L112 eAbstractionObserver]: Analyzing ICFG mix030_power.oepc_pso.oepc_rmo.oepc.i [2023-11-19 07:46:35,080 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:46:35,092 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:46:35,092 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-19 07:46:35,093 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:46:35,183 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:46:35,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 143 transitions, 302 flow [2023-11-19 07:46:35,292 INFO L124 PetriNetUnfolderBase]: 3/139 cut-off events. [2023-11-19 07:46:35,292 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:46:35,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 139 events. 3/139 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 106 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2023-11-19 07:46:35,300 INFO L82 GeneralOperation]: Start removeDead. Operand has 153 places, 143 transitions, 302 flow [2023-11-19 07:46:35,306 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 149 places, 139 transitions, 290 flow [2023-11-19 07:46:35,309 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:46:35,320 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 139 transitions, 290 flow [2023-11-19 07:46:35,323 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 139 transitions, 290 flow [2023-11-19 07:46:35,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 139 transitions, 290 flow [2023-11-19 07:46:35,375 INFO L124 PetriNetUnfolderBase]: 3/139 cut-off events. [2023-11-19 07:46:35,379 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:46:35,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 139 events. 3/139 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 106 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2023-11-19 07:46:35,385 INFO L119 LiptonReduction]: Number of co-enabled transitions 4668 [2023-11-19 07:46:40,309 INFO L134 LiptonReduction]: Checked pairs total: 16573 [2023-11-19 07:46:40,309 INFO L136 LiptonReduction]: Total number of compositions: 113 [2023-11-19 07:46:40,333 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:46:40,346 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;@2c3750cc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:46:40,349 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-19 07:46:40,358 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:46:40,359 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-19 07:46:40,359 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:46:40,359 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:40,360 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:46:40,360 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 07:46:40,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:40,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1795041558, now seen corresponding path program 1 times [2023-11-19 07:46:40,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:40,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208888510] [2023-11-19 07:46:40,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:40,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:40,793 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 07:46:40,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:40,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208888510] [2023-11-19 07:46:40,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208888510] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:40,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:40,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:46:40,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432609035] [2023-11-19 07:46:40,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:40,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:46:40,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:40,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:46:40,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:46:40,863 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 256 [2023-11-19 07:46:40,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 38 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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 07:46:40,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:40,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 256 [2023-11-19 07:46:40,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:43,838 INFO L124 PetriNetUnfolderBase]: 12225/16913 cut-off events. [2023-11-19 07:46:43,839 INFO L125 PetriNetUnfolderBase]: For 129/129 co-relation queries the response was YES. [2023-11-19 07:46:43,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34065 conditions, 16913 events. 12225/16913 cut-off events. For 129/129 co-relation queries the response was YES. Maximal size of possible extension queue 688. Compared 95229 event pairs, 3437 based on Foata normal form. 0/12760 useless extension candidates. Maximal degree in co-relation 34053. Up to 14728 conditions per place. [2023-11-19 07:46:44,025 INFO L140 encePairwiseOnDemand]: 242/256 looper letters, 51 selfloop transitions, 5 changer transitions 0/60 dead transitions. [2023-11-19 07:46:44,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 60 transitions, 253 flow [2023-11-19 07:46:44,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:46:44,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:46:44,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 411 transitions. [2023-11-19 07:46:44,042 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.53515625 [2023-11-19 07:46:44,043 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 411 transitions. [2023-11-19 07:46:44,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 411 transitions. [2023-11-19 07:46:44,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:44,048 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 411 transitions. [2023-11-19 07:46:44,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 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 07:46:44,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 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 07:46:44,059 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 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 07:46:44,061 INFO L175 Difference]: Start difference. First operand has 50 places, 38 transitions, 88 flow. Second operand 3 states and 411 transitions. [2023-11-19 07:46:44,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 60 transitions, 253 flow [2023-11-19 07:46:44,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 60 transitions, 246 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:46:44,070 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 129 flow [2023-11-19 07:46:44,072 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2023-11-19 07:46:44,076 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -1 predicate places. [2023-11-19 07:46:44,077 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 129 flow [2023-11-19 07:46:44,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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 07:46:44,078 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:44,078 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:44,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:46:44,078 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:46:44,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:44,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1155264506, now seen corresponding path program 1 times [2023-11-19 07:46:44,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:44,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238676713] [2023-11-19 07:46:44,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:44,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:44,261 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 07:46:44,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:44,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238676713] [2023-11-19 07:46:44,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238676713] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:44,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:44,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:46:44,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585398211] [2023-11-19 07:46:44,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:44,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:46:44,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:44,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:46:44,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:46:44,276 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 256 [2023-11-19 07:46:44,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 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 07:46:44,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:44,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 256 [2023-11-19 07:46:44,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:46,482 INFO L124 PetriNetUnfolderBase]: 7784/10748 cut-off events. [2023-11-19 07:46:46,482 INFO L125 PetriNetUnfolderBase]: For 609/609 co-relation queries the response was YES. [2023-11-19 07:46:46,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25982 conditions, 10748 events. 7784/10748 cut-off events. For 609/609 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 57353 event pairs, 2133 based on Foata normal form. 0/9292 useless extension candidates. Maximal degree in co-relation 25971. Up to 8562 conditions per place. [2023-11-19 07:46:46,576 INFO L140 encePairwiseOnDemand]: 247/256 looper letters, 47 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2023-11-19 07:46:46,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 56 transitions, 261 flow [2023-11-19 07:46:46,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:46:46,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:46:46,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 516 transitions. [2023-11-19 07:46:46,582 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.50390625 [2023-11-19 07:46:46,583 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 516 transitions. [2023-11-19 07:46:46,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 516 transitions. [2023-11-19 07:46:46,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:46,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 516 transitions. [2023-11-19 07:46:46,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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 07:46:46,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 256.0) internal successors, (1280), 5 states have internal predecessors, (1280), 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 07:46:46,596 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 256.0) internal successors, (1280), 5 states have internal predecessors, (1280), 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 07:46:46,597 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 129 flow. Second operand 4 states and 516 transitions. [2023-11-19 07:46:46,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 56 transitions, 261 flow [2023-11-19 07:46:46,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 56 transitions, 256 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:46:46,604 INFO L231 Difference]: Finished difference. Result has 47 places, 37 transitions, 118 flow [2023-11-19 07:46:46,610 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=47, PETRI_TRANSITIONS=37} [2023-11-19 07:46:46,612 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -3 predicate places. [2023-11-19 07:46:46,613 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 37 transitions, 118 flow [2023-11-19 07:46:46,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 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 07:46:46,614 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:46,614 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:46,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:46:46,614 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 07:46:46,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:46,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1155264507, now seen corresponding path program 1 times [2023-11-19 07:46:46,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:46,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554128375] [2023-11-19 07:46:46,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:46,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:46,806 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 07:46:46,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:46,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554128375] [2023-11-19 07:46:46,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554128375] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:46,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:46,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:46:46,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888511226] [2023-11-19 07:46:46,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:46,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:46:46,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:46,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:46:46,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:46:46,819 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 256 [2023-11-19 07:46:46,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 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 07:46:46,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:46,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 256 [2023-11-19 07:46:46,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:48,462 INFO L124 PetriNetUnfolderBase]: 5330/7403 cut-off events. [2023-11-19 07:46:48,463 INFO L125 PetriNetUnfolderBase]: For 1961/1961 co-relation queries the response was YES. [2023-11-19 07:46:48,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17653 conditions, 7403 events. 5330/7403 cut-off events. For 1961/1961 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 37997 event pairs, 1569 based on Foata normal form. 0/7079 useless extension candidates. Maximal degree in co-relation 17641. Up to 2826 conditions per place. [2023-11-19 07:46:48,543 INFO L140 encePairwiseOnDemand]: 247/256 looper letters, 64 selfloop transitions, 9 changer transitions 0/77 dead transitions. [2023-11-19 07:46:48,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 77 transitions, 362 flow [2023-11-19 07:46:48,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:46:48,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:46:48,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 537 transitions. [2023-11-19 07:46:48,547 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5244140625 [2023-11-19 07:46:48,548 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 537 transitions. [2023-11-19 07:46:48,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 537 transitions. [2023-11-19 07:46:48,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:48,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 537 transitions. [2023-11-19 07:46:48,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 134.25) internal successors, (537), 4 states have internal predecessors, (537), 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 07:46:48,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 256.0) internal successors, (1280), 5 states have internal predecessors, (1280), 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 07:46:48,556 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 256.0) internal successors, (1280), 5 states have internal predecessors, (1280), 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 07:46:48,556 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 118 flow. Second operand 4 states and 537 transitions. [2023-11-19 07:46:48,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 77 transitions, 362 flow [2023-11-19 07:46:48,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 77 transitions, 356 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:46:48,567 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 170 flow [2023-11-19 07:46:48,568 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=170, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2023-11-19 07:46:48,574 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -1 predicate places. [2023-11-19 07:46:48,574 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 170 flow [2023-11-19 07:46:48,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 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 07:46:48,575 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:48,575 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:48,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:46:48,576 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 07:46:48,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:48,576 INFO L85 PathProgramCache]: Analyzing trace with hash 235691478, now seen corresponding path program 1 times [2023-11-19 07:46:48,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:48,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975425487] [2023-11-19 07:46:48,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:48,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:48,785 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 07:46:48,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:48,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975425487] [2023-11-19 07:46:48,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975425487] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:48,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:48,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:46:48,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564752306] [2023-11-19 07:46:48,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:48,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:46:48,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:48,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:46:48,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:46:48,797 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 256 [2023-11-19 07:46:48,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 170 flow. Second operand has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 07:46:48,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:48,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 256 [2023-11-19 07:46:48,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:50,215 INFO L124 PetriNetUnfolderBase]: 4919/6761 cut-off events. [2023-11-19 07:46:50,215 INFO L125 PetriNetUnfolderBase]: For 4056/4056 co-relation queries the response was YES. [2023-11-19 07:46:50,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18367 conditions, 6761 events. 4919/6761 cut-off events. For 4056/4056 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 34118 event pairs, 1514 based on Foata normal form. 0/6698 useless extension candidates. Maximal degree in co-relation 18354. Up to 2826 conditions per place. [2023-11-19 07:46:50,274 INFO L140 encePairwiseOnDemand]: 247/256 looper letters, 75 selfloop transitions, 13 changer transitions 4/96 dead transitions. [2023-11-19 07:46:50,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 96 transitions, 492 flow [2023-11-19 07:46:50,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:46:50,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:46:50,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 671 transitions. [2023-11-19 07:46:50,277 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.52421875 [2023-11-19 07:46:50,277 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 671 transitions. [2023-11-19 07:46:50,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 671 transitions. [2023-11-19 07:46:50,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:50,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 671 transitions. [2023-11-19 07:46:50,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 134.2) internal successors, (671), 5 states have internal predecessors, (671), 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 07:46:50,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 256.0) internal successors, (1536), 6 states have internal predecessors, (1536), 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 07:46:50,285 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 256.0) internal successors, (1536), 6 states have internal predecessors, (1536), 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 07:46:50,285 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 170 flow. Second operand 5 states and 671 transitions. [2023-11-19 07:46:50,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 96 transitions, 492 flow [2023-11-19 07:46:50,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 96 transitions, 474 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-11-19 07:46:50,307 INFO L231 Difference]: Finished difference. Result has 52 places, 41 transitions, 194 flow [2023-11-19 07:46:50,307 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=194, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2023-11-19 07:46:50,309 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 2 predicate places. [2023-11-19 07:46:50,309 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 41 transitions, 194 flow [2023-11-19 07:46:50,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 07:46:50,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:50,310 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, 1, 1, 1, 1] [2023-11-19 07:46:50,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:46:50,310 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 07:46:50,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:50,311 INFO L85 PathProgramCache]: Analyzing trace with hash 73824504, now seen corresponding path program 1 times [2023-11-19 07:46:50,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:50,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261675981] [2023-11-19 07:46:50,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:50,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:50,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:50,525 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 07:46:50,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:50,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261675981] [2023-11-19 07:46:50,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261675981] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:50,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:50,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:46:50,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106749180] [2023-11-19 07:46:50,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:50,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:46:50,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:50,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:46:50,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:46:50,537 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 256 [2023-11-19 07:46:50,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 41 transitions, 194 flow. Second operand has 6 states, 6 states have (on average 118.5) internal successors, (711), 6 states have internal predecessors, (711), 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 07:46:50,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:50,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 256 [2023-11-19 07:46:50,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:51,577 INFO L124 PetriNetUnfolderBase]: 4884/6701 cut-off events. [2023-11-19 07:46:51,577 INFO L125 PetriNetUnfolderBase]: For 4927/4927 co-relation queries the response was YES. [2023-11-19 07:46:51,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18643 conditions, 6701 events. 4884/6701 cut-off events. For 4927/4927 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 33903 event pairs, 1514 based on Foata normal form. 20/6678 useless extension candidates. Maximal degree in co-relation 18629. Up to 2826 conditions per place. [2023-11-19 07:46:51,610 INFO L140 encePairwiseOnDemand]: 247/256 looper letters, 0 selfloop transitions, 0 changer transitions 88/88 dead transitions. [2023-11-19 07:46:51,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 88 transitions, 444 flow [2023-11-19 07:46:51,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:46:51,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:46:51,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 778 transitions. [2023-11-19 07:46:51,614 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5065104166666666 [2023-11-19 07:46:51,614 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 778 transitions. [2023-11-19 07:46:51,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 778 transitions. [2023-11-19 07:46:51,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:51,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 778 transitions. [2023-11-19 07:46:51,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.66666666666666) internal successors, (778), 6 states have internal predecessors, (778), 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 07:46:51,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 256.0) internal successors, (1792), 7 states have internal predecessors, (1792), 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 07:46:51,624 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 256.0) internal successors, (1792), 7 states have internal predecessors, (1792), 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 07:46:51,624 INFO L175 Difference]: Start difference. First operand has 52 places, 41 transitions, 194 flow. Second operand 6 states and 778 transitions. [2023-11-19 07:46:51,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 88 transitions, 444 flow [2023-11-19 07:46:51,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 88 transitions, 389 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-19 07:46:51,843 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2023-11-19 07:46:51,843 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2023-11-19 07:46:51,846 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -3 predicate places. [2023-11-19 07:46:51,846 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2023-11-19 07:46:51,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 118.5) internal successors, (711), 6 states have internal predecessors, (711), 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 07:46:51,849 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-19 07:46:51,849 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-19 07:46:51,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-19 07:46:51,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-19 07:46:51,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-19 07:46:51,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-19 07:46:51,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-19 07:46:51,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-19 07:46:51,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-19 07:46:51,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-19 07:46:51,855 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-19 07:46:51,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-19 07:46:51,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-19 07:46:51,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-19 07:46:51,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-19 07:46:51,857 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-19 07:46:51,857 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-19 07:46:51,857 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-19 07:46:51,858 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-19 07:46:51,858 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-19 07:46:51,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:46:51,858 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-19 07:46:51,864 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:46:51,864 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:46:51,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:46:51 BasicIcfg [2023-11-19 07:46:51,869 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:46:51,870 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:46:51,870 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:46:51,871 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:46:51,871 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:35" (3/4) ... [2023-11-19 07:46:51,873 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:46:51,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 07:46:51,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 07:46:51,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-19 07:46:51,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-19 07:46:51,883 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-11-19 07:46:51,884 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 07:46:51,884 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:46:51,884 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:46:51,991 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5b9d5-5998-4c19-a306-9fd5fbeed9ca/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:46:51,992 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5b9d5-5998-4c19-a306-9fd5fbeed9ca/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:46:51,992 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:46:51,992 INFO L158 Benchmark]: Toolchain (without parser) took 18723.52ms. Allocated memory was 146.8MB in the beginning and 1.1GB in the end (delta: 977.3MB). Free memory was 115.2MB in the beginning and 731.2MB in the end (delta: -616.0MB). Peak memory consumption was 362.2MB. Max. memory is 16.1GB. [2023-11-19 07:46:51,993 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory was 85.8MB in the beginning and 85.7MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:46:51,993 INFO L158 Benchmark]: CACSL2BoogieTranslator took 731.94ms. Allocated memory is still 146.8MB. Free memory was 115.2MB in the beginning and 100.0MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 07:46:51,994 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.08ms. Allocated memory is still 146.8MB. Free memory was 100.0MB in the beginning and 97.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:46:51,994 INFO L158 Benchmark]: Boogie Preprocessor took 41.35ms. Allocated memory is still 146.8MB. Free memory was 97.9MB in the beginning and 95.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:46:51,995 INFO L158 Benchmark]: RCFGBuilder took 944.52ms. Allocated memory is still 146.8MB. Free memory was 95.8MB in the beginning and 52.6MB in the end (delta: 43.2MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-11-19 07:46:51,995 INFO L158 Benchmark]: TraceAbstraction took 16806.46ms. Allocated memory was 146.8MB in the beginning and 1.1GB in the end (delta: 977.3MB). Free memory was 51.8MB in the beginning and 736.4MB in the end (delta: -684.6MB). Peak memory consumption was 720.1MB. Max. memory is 16.1GB. [2023-11-19 07:46:51,995 INFO L158 Benchmark]: Witness Printer took 121.68ms. Allocated memory is still 1.1GB. Free memory was 736.4MB in the beginning and 731.2MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:46:51,998 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory was 85.8MB in the beginning and 85.7MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 731.94ms. Allocated memory is still 146.8MB. Free memory was 115.2MB in the beginning and 100.0MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.08ms. Allocated memory is still 146.8MB. Free memory was 100.0MB in the beginning and 97.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.35ms. Allocated memory is still 146.8MB. Free memory was 97.9MB in the beginning and 95.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 944.52ms. Allocated memory is still 146.8MB. Free memory was 95.8MB in the beginning and 52.6MB in the end (delta: 43.2MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * TraceAbstraction took 16806.46ms. Allocated memory was 146.8MB in the beginning and 1.1GB in the end (delta: 977.3MB). Free memory was 51.8MB in the beginning and 736.4MB in the end (delta: -684.6MB). Peak memory consumption was 720.1MB. Max. memory is 16.1GB. * Witness Printer took 121.68ms. Allocated memory is still 1.1GB. Free memory was 736.4MB in the beginning and 731.2MB in the end (delta: 5.3MB). 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: 5.0s, 149 PlacesBefore, 50 PlacesAfterwards, 139 TransitionsBefore, 38 TransitionsAfterwards, 4668 CoEnabledTransitionPairs, 7 FixpointIterations, 40 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 113 TotalNumberOfCompositions, 16573 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5484, independent: 5113, independent conditional: 0, independent unconditional: 5113, dependent: 371, dependent conditional: 0, dependent unconditional: 371, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2475, independent: 2400, independent conditional: 0, independent unconditional: 2400, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5484, independent: 2713, independent conditional: 0, independent unconditional: 2713, dependent: 296, dependent conditional: 0, dependent unconditional: 296, unknown: 2475, unknown conditional: 0, unknown unconditional: 2475] , Statistics on independence cache: Total cache size (in pairs): 239, Positive cache size: 212, Positive conditional cache size: 0, Positive unconditional cache size: 212, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 847]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 847]: 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, 186 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: 16.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 236 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 223 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 457 IncrementalHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 4 mSDtfsCounter, 457 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=194occurred in iteration=4, InterpolantAutomatonStates: 22, 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, 0.8s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 204 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 07:46:52,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f5b9d5-5998-4c19-a306-9fd5fbeed9ca/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