./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6e0ea5-39e3-499d-a32e-fd4c37e90997/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6e0ea5-39e3-499d-a32e-fd4c37e90997/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6e0ea5-39e3-499d-a32e-fd4c37e90997/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6e0ea5-39e3-499d-a32e-fd4c37e90997/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6e0ea5-39e3-499d-a32e-fd4c37e90997/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6e0ea5-39e3-499d-a32e-fd4c37e90997/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:32:13,118 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:32:13,268 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6e0ea5-39e3-499d-a32e-fd4c37e90997/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:32:13,278 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:32:13,279 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:32:13,338 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:32:13,339 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:32:13,340 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:32:13,341 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:32:13,346 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:32:13,347 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:32:13,348 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:32:13,348 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:32:13,350 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:32:13,351 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:32:13,351 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:32:13,351 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:32:13,352 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:32:13,352 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:32:13,353 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:32:13,353 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:32:13,354 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:32:13,354 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:32:13,355 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:32:13,355 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:32:13,355 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:32:13,356 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:32:13,357 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:32:13,357 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:32:13,358 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:32:13,359 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:32:13,359 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:32:13,360 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:32:13,360 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:32:13,360 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:32:13,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:32:13,361 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:32:13,361 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:32:13,361 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:32:13,361 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:32:13,362 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:32:13,362 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_9c6e0ea5-39e3-499d-a32e-fd4c37e90997/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6e0ea5-39e3-499d-a32e-fd4c37e90997/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 [2023-11-06 22:32:13,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:32:13,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:32:13,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:32:13,751 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:32:13,751 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:32:13,753 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6e0ea5-39e3-499d-a32e-fd4c37e90997/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2023-11-06 22:32:16,989 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:32:17,332 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:32:17,333 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6e0ea5-39e3-499d-a32e-fd4c37e90997/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2023-11-06 22:32:17,349 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6e0ea5-39e3-499d-a32e-fd4c37e90997/bin/uautomizer-verify-WvqO1wxjHP/data/11d4a0b1d/b31fa0c4654e48c18d6a9466c0bd37eb/FLAGbfc8e3cba [2023-11-06 22:32:17,369 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6e0ea5-39e3-499d-a32e-fd4c37e90997/bin/uautomizer-verify-WvqO1wxjHP/data/11d4a0b1d/b31fa0c4654e48c18d6a9466c0bd37eb [2023-11-06 22:32:17,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:32:17,373 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:32:17,375 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:32:17,375 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:32:17,380 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:32:17,381 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:17" (1/1) ... [2023-11-06 22:32:17,382 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@296c5489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:17, skipping insertion in model container [2023-11-06 22:32:17,383 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:17" (1/1) ... [2023-11-06 22:32:17,435 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:32:17,837 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:32:17,863 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:32:17,934 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:32:17,990 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:32:17,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:17 WrapperNode [2023-11-06 22:32:17,990 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:32:17,992 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:32:17,992 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:32:17,992 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:32:18,001 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:17" (1/1) ... [2023-11-06 22:32:18,035 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:17" (1/1) ... [2023-11-06 22:32:18,063 INFO L138 Inliner]: procedures = 163, calls = 53, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 115 [2023-11-06 22:32:18,064 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:32:18,064 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:32:18,065 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:32:18,065 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:32:18,075 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:17" (1/1) ... [2023-11-06 22:32:18,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:17" (1/1) ... [2023-11-06 22:32:18,080 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:17" (1/1) ... [2023-11-06 22:32:18,080 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:17" (1/1) ... [2023-11-06 22:32:18,088 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:17" (1/1) ... [2023-11-06 22:32:18,090 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:17" (1/1) ... [2023-11-06 22:32:18,093 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:17" (1/1) ... [2023-11-06 22:32:18,095 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:17" (1/1) ... [2023-11-06 22:32:18,099 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:32:18,101 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:32:18,101 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:32:18,101 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:32:18,102 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:17" (1/1) ... [2023-11-06 22:32:18,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:32:18,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6e0ea5-39e3-499d-a32e-fd4c37e90997/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:32:18,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6e0ea5-39e3-499d-a32e-fd4c37e90997/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:32:18,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6e0ea5-39e3-499d-a32e-fd4c37e90997/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:32:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:32:18,185 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-06 22:32:18,185 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-06 22:32:18,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:32:18,185 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 22:32:18,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:32:18,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:32:18,186 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 22:32:18,186 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 22:32:18,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:32:18,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:32:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:32:18,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:32:18,189 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:32:18,337 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:32:18,339 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:32:18,778 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:32:18,797 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:32:18,797 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:32:18,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:18 BoogieIcfgContainer [2023-11-06 22:32:18,800 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:32:18,803 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:32:18,803 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:32:18,808 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:32:18,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:32:17" (1/3) ... [2023-11-06 22:32:18,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2960b07b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:18, skipping insertion in model container [2023-11-06 22:32:18,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:17" (2/3) ... [2023-11-06 22:32:18,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2960b07b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:18, skipping insertion in model container [2023-11-06 22:32:18,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:18" (3/3) ... [2023-11-06 22:32:18,811 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2023-11-06 22:32:18,821 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:32:18,831 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:32:18,831 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-06 22:32:18,831 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:32:18,944 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 22:32:18,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 186 places, 187 transitions, 388 flow [2023-11-06 22:32:19,087 INFO L124 PetriNetUnfolderBase]: 8/185 cut-off events. [2023-11-06 22:32:19,087 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:32:19,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 185 events. 8/185 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 254 event pairs, 0 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 137. Up to 2 conditions per place. [2023-11-06 22:32:19,097 INFO L82 GeneralOperation]: Start removeDead. Operand has 186 places, 187 transitions, 388 flow [2023-11-06 22:32:19,104 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 175 transitions, 359 flow [2023-11-06 22:32:19,108 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:32:19,118 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 174 places, 175 transitions, 359 flow [2023-11-06 22:32:19,121 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 174 places, 175 transitions, 359 flow [2023-11-06 22:32:19,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 174 places, 175 transitions, 359 flow [2023-11-06 22:32:19,205 INFO L124 PetriNetUnfolderBase]: 8/175 cut-off events. [2023-11-06 22:32:19,205 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:32:19,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 175 events. 8/175 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 254 event pairs, 0 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 137. Up to 2 conditions per place. [2023-11-06 22:32:19,220 INFO L119 LiptonReduction]: Number of co-enabled transitions 9828 [2023-11-06 22:32:25,621 INFO L134 LiptonReduction]: Checked pairs total: 25871 [2023-11-06 22:32:25,621 INFO L136 LiptonReduction]: Total number of compositions: 170 [2023-11-06 22:32:25,639 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:32:25,647 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=LoopsAndPotentialCycles, 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;@6bbc8de9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:32:25,647 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-11-06 22:32:25,650 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:32:25,651 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-11-06 22:32:25,651 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:32:25,651 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:32:25,652 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-06 22:32:25,652 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:32:25,658 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:25,658 INFO L85 PathProgramCache]: Analyzing trace with hash 20303515, now seen corresponding path program 1 times [2023-11-06 22:32:25,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:25,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831939281] [2023-11-06 22:32:25,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:25,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:26,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:32:26,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:26,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831939281] [2023-11-06 22:32:26,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831939281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:26,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:26,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:32:26,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231296425] [2023-11-06 22:32:26,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:26,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:32:26,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:26,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:32:26,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:32:26,188 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 357 [2023-11-06 22:32:26,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 59 transitions, 127 flow. Second operand has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 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) [2023-11-06 22:32:26,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:32:26,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 357 [2023-11-06 22:32:26,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:32:27,617 INFO L124 PetriNetUnfolderBase]: 6073/9866 cut-off events. [2023-11-06 22:32:27,617 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-11-06 22:32:27,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19643 conditions, 9866 events. 6073/9866 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 61406 event pairs, 2095 based on Foata normal form. 351/8278 useless extension candidates. Maximal degree in co-relation 19407. Up to 5360 conditions per place. [2023-11-06 22:32:27,737 INFO L140 encePairwiseOnDemand]: 340/357 looper letters, 77 selfloop transitions, 5 changer transitions 0/83 dead transitions. [2023-11-06 22:32:27,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 83 transitions, 345 flow [2023-11-06 22:32:27,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:32:27,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:32:27,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 604 transitions. [2023-11-06 22:32:27,763 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5639589169000934 [2023-11-06 22:32:27,764 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 604 transitions. [2023-11-06 22:32:27,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 604 transitions. [2023-11-06 22:32:27,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:32:27,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 604 transitions. [2023-11-06 22:32:27,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 201.33333333333334) internal successors, (604), 3 states have internal predecessors, (604), 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) [2023-11-06 22:32:27,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 357.0) internal successors, (1428), 4 states have internal predecessors, (1428), 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) [2023-11-06 22:32:27,795 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 357.0) internal successors, (1428), 4 states have internal predecessors, (1428), 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) [2023-11-06 22:32:27,798 INFO L175 Difference]: Start difference. First operand has 59 places, 59 transitions, 127 flow. Second operand 3 states and 604 transitions. [2023-11-06 22:32:27,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 83 transitions, 345 flow [2023-11-06 22:32:27,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 83 transitions, 337 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 22:32:27,815 INFO L231 Difference]: Finished difference. Result has 54 places, 49 transitions, 134 flow [2023-11-06 22:32:27,818 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=54, PETRI_TRANSITIONS=49} [2023-11-06 22:32:27,825 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -5 predicate places. [2023-11-06 22:32:27,825 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 134 flow [2023-11-06 22:32:27,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 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) [2023-11-06 22:32:27,826 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:32:27,827 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:32:27,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:32:27,828 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:32:27,830 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:27,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1961687616, now seen corresponding path program 1 times [2023-11-06 22:32:27,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:27,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115843444] [2023-11-06 22:32:27,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:27,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:27,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:27,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:32:27,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:27,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115843444] [2023-11-06 22:32:27,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115843444] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:27,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:27,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:32:27,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607420462] [2023-11-06 22:32:27,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:27,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:32:27,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:27,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:32:27,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:32:28,000 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 357 [2023-11-06 22:32:28,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 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) [2023-11-06 22:32:28,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:32:28,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 357 [2023-11-06 22:32:28,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:32:29,257 INFO L124 PetriNetUnfolderBase]: 6251/10503 cut-off events. [2023-11-06 22:32:29,257 INFO L125 PetriNetUnfolderBase]: For 2216/2216 co-relation queries the response was YES. [2023-11-06 22:32:29,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23237 conditions, 10503 events. 6251/10503 cut-off events. For 2216/2216 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 69838 event pairs, 1866 based on Foata normal form. 0/9540 useless extension candidates. Maximal degree in co-relation 21785. Up to 6084 conditions per place. [2023-11-06 22:32:29,409 INFO L140 encePairwiseOnDemand]: 348/357 looper letters, 78 selfloop transitions, 4 changer transitions 0/83 dead transitions. [2023-11-06 22:32:29,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 83 transitions, 395 flow [2023-11-06 22:32:29,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:32:29,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:32:29,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 585 transitions. [2023-11-06 22:32:29,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5462184873949579 [2023-11-06 22:32:29,414 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 585 transitions. [2023-11-06 22:32:29,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 585 transitions. [2023-11-06 22:32:29,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:32:29,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 585 transitions. [2023-11-06 22:32:29,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 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) [2023-11-06 22:32:29,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 357.0) internal successors, (1428), 4 states have internal predecessors, (1428), 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) [2023-11-06 22:32:29,422 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 357.0) internal successors, (1428), 4 states have internal predecessors, (1428), 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) [2023-11-06 22:32:29,423 INFO L175 Difference]: Start difference. First operand has 54 places, 49 transitions, 134 flow. Second operand 3 states and 585 transitions. [2023-11-06 22:32:29,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 83 transitions, 395 flow [2023-11-06 22:32:29,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 83 transitions, 377 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:32:29,442 INFO L231 Difference]: Finished difference. Result has 54 places, 49 transitions, 150 flow [2023-11-06 22:32:29,443 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=54, PETRI_TRANSITIONS=49} [2023-11-06 22:32:29,444 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -5 predicate places. [2023-11-06 22:32:29,445 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 150 flow [2023-11-06 22:32:29,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 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) [2023-11-06 22:32:29,446 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:32:29,446 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:29,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:32:29,453 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:32:29,456 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:29,456 INFO L85 PathProgramCache]: Analyzing trace with hash -730150482, now seen corresponding path program 1 times [2023-11-06 22:32:29,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:29,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938967055] [2023-11-06 22:32:29,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:29,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:29,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:32:29,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:29,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938967055] [2023-11-06 22:32:29,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938967055] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:29,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:29,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:32:29,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981012730] [2023-11-06 22:32:29,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:29,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:32:29,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:29,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:32:29,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:32:29,664 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 357 [2023-11-06 22:32:29,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 169.75) internal successors, (679), 4 states have internal predecessors, (679), 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) [2023-11-06 22:32:29,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:32:29,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 357 [2023-11-06 22:32:29,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:32:30,689 INFO L124 PetriNetUnfolderBase]: 4680/7809 cut-off events. [2023-11-06 22:32:30,689 INFO L125 PetriNetUnfolderBase]: For 1811/1811 co-relation queries the response was YES. [2023-11-06 22:32:30,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18201 conditions, 7809 events. 4680/7809 cut-off events. For 1811/1811 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 49016 event pairs, 1409 based on Foata normal form. 44/7585 useless extension candidates. Maximal degree in co-relation 16631. Up to 2963 conditions per place. [2023-11-06 22:32:30,728 INFO L140 encePairwiseOnDemand]: 351/357 looper letters, 97 selfloop transitions, 5 changer transitions 5/108 dead transitions. [2023-11-06 22:32:30,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 108 transitions, 529 flow [2023-11-06 22:32:30,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:32:30,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:32:30,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 776 transitions. [2023-11-06 22:32:30,733 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5434173669467787 [2023-11-06 22:32:30,733 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 776 transitions. [2023-11-06 22:32:30,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 776 transitions. [2023-11-06 22:32:30,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:32:30,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 776 transitions. [2023-11-06 22:32:30,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 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) [2023-11-06 22:32:30,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 357.0) internal successors, (1785), 5 states have internal predecessors, (1785), 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) [2023-11-06 22:32:30,742 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 357.0) internal successors, (1785), 5 states have internal predecessors, (1785), 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) [2023-11-06 22:32:30,742 INFO L175 Difference]: Start difference. First operand has 54 places, 49 transitions, 150 flow. Second operand 4 states and 776 transitions. [2023-11-06 22:32:30,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 108 transitions, 529 flow [2023-11-06 22:32:30,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 108 transitions, 509 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:32:30,753 INFO L231 Difference]: Finished difference. Result has 54 places, 47 transitions, 144 flow [2023-11-06 22:32:30,753 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=144, PETRI_PLACES=54, PETRI_TRANSITIONS=47} [2023-11-06 22:32:30,755 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -5 predicate places. [2023-11-06 22:32:30,758 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 47 transitions, 144 flow [2023-11-06 22:32:30,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 169.75) internal successors, (679), 4 states have internal predecessors, (679), 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) [2023-11-06 22:32:30,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:32:30,759 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:30,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:32:30,760 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:32:30,760 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:30,760 INFO L85 PathProgramCache]: Analyzing trace with hash -730150483, now seen corresponding path program 1 times [2023-11-06 22:32:30,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:30,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162306584] [2023-11-06 22:32:30,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:30,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:30,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:32:30,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:30,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162306584] [2023-11-06 22:32:30,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162306584] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:30,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:30,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:32:30,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057402993] [2023-11-06 22:32:30,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:30,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:32:30,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:30,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:32:30,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:32:30,889 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 357 [2023-11-06 22:32:30,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 47 transitions, 144 flow. Second operand has 4 states, 4 states have (on average 169.75) internal successors, (679), 4 states have internal predecessors, (679), 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) [2023-11-06 22:32:30,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:32:30,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 357 [2023-11-06 22:32:30,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:32:31,795 INFO L124 PetriNetUnfolderBase]: 4264/7140 cut-off events. [2023-11-06 22:32:31,796 INFO L125 PetriNetUnfolderBase]: For 1799/1799 co-relation queries the response was YES. [2023-11-06 22:32:31,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16678 conditions, 7140 events. 4264/7140 cut-off events. For 1799/1799 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 43848 event pairs, 1390 based on Foata normal form. 253/7104 useless extension candidates. Maximal degree in co-relation 15146. Up to 2963 conditions per place. [2023-11-06 22:32:31,830 INFO L140 encePairwiseOnDemand]: 351/357 looper letters, 86 selfloop transitions, 5 changer transitions 15/107 dead transitions. [2023-11-06 22:32:31,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 107 transitions, 513 flow [2023-11-06 22:32:31,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:32:31,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:32:31,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 773 transitions. [2023-11-06 22:32:31,835 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5413165266106442 [2023-11-06 22:32:31,835 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 773 transitions. [2023-11-06 22:32:31,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 773 transitions. [2023-11-06 22:32:31,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:32:31,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 773 transitions. [2023-11-06 22:32:31,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 193.25) internal successors, (773), 4 states have internal predecessors, (773), 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) [2023-11-06 22:32:31,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 357.0) internal successors, (1785), 5 states have internal predecessors, (1785), 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) [2023-11-06 22:32:31,845 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 357.0) internal successors, (1785), 5 states have internal predecessors, (1785), 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) [2023-11-06 22:32:31,845 INFO L175 Difference]: Start difference. First operand has 54 places, 47 transitions, 144 flow. Second operand 4 states and 773 transitions. [2023-11-06 22:32:31,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 107 transitions, 513 flow [2023-11-06 22:32:31,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 107 transitions, 507 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:32:31,859 INFO L231 Difference]: Finished difference. Result has 54 places, 41 transitions, 130 flow [2023-11-06 22:32:31,859 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=130, PETRI_PLACES=54, PETRI_TRANSITIONS=41} [2023-11-06 22:32:31,860 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -5 predicate places. [2023-11-06 22:32:31,860 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 41 transitions, 130 flow [2023-11-06 22:32:31,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 169.75) internal successors, (679), 4 states have internal predecessors, (679), 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) [2023-11-06 22:32:31,861 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:32:31,862 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:31,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:32:31,862 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:32:31,862 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:31,863 INFO L85 PathProgramCache]: Analyzing trace with hash 983175552, now seen corresponding path program 1 times [2023-11-06 22:32:31,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:31,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768025556] [2023-11-06 22:32:31,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:31,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:31,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:31,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:32:31,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:31,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768025556] [2023-11-06 22:32:31,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768025556] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:31,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:31,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:32:31,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952155716] [2023-11-06 22:32:31,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:31,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:32:31,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:31,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:32:31,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:32:31,965 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 357 [2023-11-06 22:32:31,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 41 transitions, 130 flow. Second operand has 4 states, 4 states have (on average 170.25) internal successors, (681), 4 states have internal predecessors, (681), 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) [2023-11-06 22:32:31,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:32:31,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 357 [2023-11-06 22:32:31,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:32:32,489 INFO L124 PetriNetUnfolderBase]: 2006/3465 cut-off events. [2023-11-06 22:32:32,489 INFO L125 PetriNetUnfolderBase]: For 1081/1081 co-relation queries the response was YES. [2023-11-06 22:32:32,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8206 conditions, 3465 events. 2006/3465 cut-off events. For 1081/1081 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 18877 event pairs, 970 based on Foata normal form. 0/3429 useless extension candidates. Maximal degree in co-relation 7407. Up to 1854 conditions per place. [2023-11-06 22:32:32,517 INFO L140 encePairwiseOnDemand]: 353/357 looper letters, 63 selfloop transitions, 3 changer transitions 1/68 dead transitions. [2023-11-06 22:32:32,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 68 transitions, 342 flow [2023-11-06 22:32:32,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:32:32,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:32:32,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 736 transitions. [2023-11-06 22:32:32,605 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5154061624649859 [2023-11-06 22:32:32,605 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 736 transitions. [2023-11-06 22:32:32,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 736 transitions. [2023-11-06 22:32:32,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:32:32,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 736 transitions. [2023-11-06 22:32:32,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 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) [2023-11-06 22:32:32,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 357.0) internal successors, (1785), 5 states have internal predecessors, (1785), 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) [2023-11-06 22:32:32,614 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 357.0) internal successors, (1785), 5 states have internal predecessors, (1785), 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) [2023-11-06 22:32:32,614 INFO L175 Difference]: Start difference. First operand has 54 places, 41 transitions, 130 flow. Second operand 4 states and 736 transitions. [2023-11-06 22:32:32,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 68 transitions, 342 flow [2023-11-06 22:32:32,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 68 transitions, 324 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 22:32:32,620 INFO L231 Difference]: Finished difference. Result has 49 places, 40 transitions, 122 flow [2023-11-06 22:32:32,621 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=122, PETRI_PLACES=49, PETRI_TRANSITIONS=40} [2023-11-06 22:32:32,623 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -10 predicate places. [2023-11-06 22:32:32,624 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 40 transitions, 122 flow [2023-11-06 22:32:32,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 170.25) internal successors, (681), 4 states have internal predecessors, (681), 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) [2023-11-06 22:32:32,625 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:32:32,625 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:32,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:32:32,625 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:32:32,626 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:32,626 INFO L85 PathProgramCache]: Analyzing trace with hash 983175529, now seen corresponding path program 1 times [2023-11-06 22:32:32,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:32,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969704638] [2023-11-06 22:32:32,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:32,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:32,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:32,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:32:32,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:32,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969704638] [2023-11-06 22:32:32,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969704638] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:32,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:32,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:32:32,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164038792] [2023-11-06 22:32:32,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:32,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:32:32,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:32,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:32:32,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:32:32,751 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 357 [2023-11-06 22:32:32,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 40 transitions, 122 flow. Second operand has 4 states, 4 states have (on average 170.25) internal successors, (681), 4 states have internal predecessors, (681), 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) [2023-11-06 22:32:32,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:32:32,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 357 [2023-11-06 22:32:32,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:32:33,079 INFO L124 PetriNetUnfolderBase]: 1414/2398 cut-off events. [2023-11-06 22:32:33,079 INFO L125 PetriNetUnfolderBase]: For 786/786 co-relation queries the response was YES. [2023-11-06 22:32:33,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5577 conditions, 2398 events. 1414/2398 cut-off events. For 786/786 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 11672 event pairs, 781 based on Foata normal form. 217/2615 useless extension candidates. Maximal degree in co-relation 4977. Up to 1340 conditions per place. [2023-11-06 22:32:33,086 INFO L140 encePairwiseOnDemand]: 353/357 looper letters, 0 selfloop transitions, 0 changer transitions 65/65 dead transitions. [2023-11-06 22:32:33,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 65 transitions, 312 flow [2023-11-06 22:32:33,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:32:33,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:32:33,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 734 transitions. [2023-11-06 22:32:33,090 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5140056022408963 [2023-11-06 22:32:33,090 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 734 transitions. [2023-11-06 22:32:33,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 734 transitions. [2023-11-06 22:32:33,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:32:33,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 734 transitions. [2023-11-06 22:32:33,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 183.5) internal successors, (734), 4 states have internal predecessors, (734), 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) [2023-11-06 22:32:33,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 357.0) internal successors, (1785), 5 states have internal predecessors, (1785), 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) [2023-11-06 22:32:33,098 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 357.0) internal successors, (1785), 5 states have internal predecessors, (1785), 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) [2023-11-06 22:32:33,098 INFO L175 Difference]: Start difference. First operand has 49 places, 40 transitions, 122 flow. Second operand 4 states and 734 transitions. [2023-11-06 22:32:33,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 65 transitions, 312 flow [2023-11-06 22:32:33,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 65 transitions, 309 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:32:33,103 INFO L231 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2023-11-06 22:32:33,104 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=49, PETRI_TRANSITIONS=0} [2023-11-06 22:32:33,106 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -10 predicate places. [2023-11-06 22:32:33,106 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 0 transitions, 0 flow [2023-11-06 22:32:33,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 170.25) internal successors, (681), 4 states have internal predecessors, (681), 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) [2023-11-06 22:32:33,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2023-11-06 22:32:33,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2023-11-06 22:32:33,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2023-11-06 22:32:33,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2023-11-06 22:32:33,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 18 remaining) [2023-11-06 22:32:33,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 18 remaining) [2023-11-06 22:32:33,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2023-11-06 22:32:33,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2023-11-06 22:32:33,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2023-11-06 22:32:33,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2023-11-06 22:32:33,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2023-11-06 22:32:33,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2023-11-06 22:32:33,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2023-11-06 22:32:33,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2023-11-06 22:32:33,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2023-11-06 22:32:33,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2023-11-06 22:32:33,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2023-11-06 22:32:33,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2023-11-06 22:32:33,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:32:33,115 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-06 22:32:33,122 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:32:33,122 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:32:33,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:32:33 BasicIcfg [2023-11-06 22:32:33,129 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:32:33,129 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:32:33,129 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:32:33,130 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:32:33,130 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:18" (3/4) ... [2023-11-06 22:32:33,132 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:32:33,143 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2023-11-06 22:32:33,144 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-06 22:32:33,154 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-06 22:32:33,154 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:32:33,155 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:32:33,155 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:32:33,226 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6e0ea5-39e3-499d-a32e-fd4c37e90997/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:32:33,227 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6e0ea5-39e3-499d-a32e-fd4c37e90997/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:32:33,227 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:32:33,228 INFO L158 Benchmark]: Toolchain (without parser) took 15854.97ms. Allocated memory was 174.1MB in the beginning and 683.7MB in the end (delta: 509.6MB). Free memory was 141.5MB in the beginning and 370.5MB in the end (delta: -229.0MB). Peak memory consumption was 281.3MB. Max. memory is 16.1GB. [2023-11-06 22:32:33,228 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 121.6MB. Free memory is still 96.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:32:33,229 INFO L158 Benchmark]: CACSL2BoogieTranslator took 616.26ms. Allocated memory is still 174.1MB. Free memory was 141.5MB in the beginning and 121.7MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-06 22:32:33,229 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.14ms. Allocated memory is still 174.1MB. Free memory was 121.7MB in the beginning and 119.6MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:32:33,230 INFO L158 Benchmark]: Boogie Preprocessor took 35.29ms. Allocated memory is still 174.1MB. Free memory was 119.6MB in the beginning and 118.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:32:33,230 INFO L158 Benchmark]: RCFGBuilder took 699.75ms. Allocated memory is still 174.1MB. Free memory was 117.5MB in the beginning and 134.1MB in the end (delta: -16.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-06 22:32:33,231 INFO L158 Benchmark]: TraceAbstraction took 14325.59ms. Allocated memory was 174.1MB in the beginning and 683.7MB in the end (delta: 509.6MB). Free memory was 133.4MB in the beginning and 374.7MB in the end (delta: -241.2MB). Peak memory consumption was 270.1MB. Max. memory is 16.1GB. [2023-11-06 22:32:33,231 INFO L158 Benchmark]: Witness Printer took 97.97ms. Allocated memory is still 683.7MB. Free memory was 374.7MB in the beginning and 370.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:32:33,233 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 121.6MB. Free memory is still 96.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 616.26ms. Allocated memory is still 174.1MB. Free memory was 141.5MB in the beginning and 121.7MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.14ms. Allocated memory is still 174.1MB. Free memory was 121.7MB in the beginning and 119.6MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.29ms. Allocated memory is still 174.1MB. Free memory was 119.6MB in the beginning and 118.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 699.75ms. Allocated memory is still 174.1MB. Free memory was 117.5MB in the beginning and 134.1MB in the end (delta: -16.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 14325.59ms. Allocated memory was 174.1MB in the beginning and 683.7MB in the end (delta: 509.6MB). Free memory was 133.4MB in the beginning and 374.7MB in the end (delta: -241.2MB). Peak memory consumption was 270.1MB. Max. memory is 16.1GB. * Witness Printer took 97.97ms. Allocated memory is still 683.7MB. Free memory was 374.7MB in the beginning and 370.5MB 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: 6.5s, 174 PlacesBefore, 59 PlacesAfterwards, 175 TransitionsBefore, 59 TransitionsAfterwards, 9828 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 113 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 21 ConcurrentYvCompositions, 1 ChoiceCompositions, 170 TotalNumberOfCompositions, 25871 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8764, independent: 8264, independent conditional: 0, independent unconditional: 8264, dependent: 500, dependent conditional: 0, dependent unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5451, independent: 5369, independent conditional: 0, independent unconditional: 5369, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8764, independent: 2895, independent conditional: 0, independent unconditional: 2895, dependent: 418, dependent conditional: 0, dependent unconditional: 418, unknown: 5451, unknown conditional: 0, unknown unconditional: 5451] , Statistics on independence cache: Total cache size (in pairs): 166, Positive cache size: 116, Positive conditional cache size: 0, Positive unconditional cache size: 116, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 699]: 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: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 236 locations, 18 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: 14.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 430 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 364 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 722 IncrementalHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 15 mSDtfsCounter, 722 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=150occurred in iteration=2, 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, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:32:33,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6e0ea5-39e3-499d-a32e-fd4c37e90997/bin/uautomizer-verify-WvqO1wxjHP/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