./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 2329fc70 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_d4eefbe7-c656-455b-895f-8e756d5330e3/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4eefbe7-c656-455b-895f-8e756d5330e3/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4eefbe7-c656-455b-895f-8e756d5330e3/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4eefbe7-c656-455b-895f-8e756d5330e3/bin/uautomizer-uyxdKDjOR8/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_d4eefbe7-c656-455b-895f-8e756d5330e3/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4eefbe7-c656-455b-895f-8e756d5330e3/bin/uautomizer-uyxdKDjOR8 --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 22:10:35,317 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:10:35,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:10:35,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:10:35,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:10:35,333 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:10:35,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:10:35,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:10:35,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:10:35,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:10:35,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:10:35,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:10:35,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:10:35,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:10:35,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:10:35,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:10:35,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:10:35,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:10:35,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:10:35,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:10:35,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:10:35,347 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:10:35,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:10:35,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:10:35,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:10:35,353 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:10:35,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:10:35,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:10:35,355 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:10:35,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:10:35,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:10:35,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:10:35,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:10:35,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:10:35,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:10:35,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:10:35,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:10:35,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:10:35,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:10:35,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:10:35,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:10:35,363 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4eefbe7-c656-455b-895f-8e756d5330e3/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 22:10:35,378 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:10:35,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:10:35,378 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:10:35,378 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:10:35,379 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 22:10:35,379 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 22:10:35,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:10:35,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:10:35,380 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:10:35,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:10:35,380 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 22:10:35,380 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 22:10:35,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:10:35,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 22:10:35,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:10:35,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 22:10:35,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 22:10:35,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 22:10:35,381 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 22:10:35,381 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 22:10:35,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 22:10:35,381 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:10:35,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 22:10:35,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:10:35,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:10:35,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 22:10:35,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:10:35,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:10:35,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 22:10:35,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 22:10:35,382 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 22:10:35,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 22:10:35,383 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 22:10:35,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 22:10:35,383 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 22:10:35,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 22:10:35,383 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 22:10:35,383 INFO L138 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_d4eefbe7-c656-455b-895f-8e756d5330e3/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4eefbe7-c656-455b-895f-8e756d5330e3/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 [2022-12-13 22:10:35,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:10:35,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:10:35,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:10:35,573 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:10:35,573 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:10:35,574 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4eefbe7-c656-455b-895f-8e756d5330e3/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2022-12-13 22:10:38,132 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:10:38,323 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:10:38,324 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4eefbe7-c656-455b-895f-8e756d5330e3/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2022-12-13 22:10:38,339 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4eefbe7-c656-455b-895f-8e756d5330e3/bin/uautomizer-uyxdKDjOR8/data/3b42a4bb2/86a30aad3cbc4daabc5efbce361baed9/FLAGba13f6154 [2022-12-13 22:10:38,352 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4eefbe7-c656-455b-895f-8e756d5330e3/bin/uautomizer-uyxdKDjOR8/data/3b42a4bb2/86a30aad3cbc4daabc5efbce361baed9 [2022-12-13 22:10:38,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:10:38,356 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:10:38,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:10:38,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:10:38,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:10:38,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:10:38" (1/1) ... [2022-12-13 22:10:38,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49c71d34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:38, skipping insertion in model container [2022-12-13 22:10:38,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:10:38" (1/1) ... [2022-12-13 22:10:38,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:10:38,391 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:10:38,529 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4eefbe7-c656-455b-895f-8e756d5330e3/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2022-12-13 22:10:38,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:10:38,660 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:10:38,670 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4eefbe7-c656-455b-895f-8e756d5330e3/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2022-12-13 22:10:38,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:10:38,736 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:10:38,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:38 WrapperNode [2022-12-13 22:10:38,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:10:38,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:10:38,738 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:10:38,738 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:10:38,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:38" (1/1) ... [2022-12-13 22:10:38,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:38" (1/1) ... [2022-12-13 22:10:38,777 INFO L138 Inliner]: procedures = 163, calls = 52, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 104 [2022-12-13 22:10:38,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:10:38,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:10:38,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:10:38,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:10:38,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:38" (1/1) ... [2022-12-13 22:10:38,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:38" (1/1) ... [2022-12-13 22:10:38,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:38" (1/1) ... [2022-12-13 22:10:38,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:38" (1/1) ... [2022-12-13 22:10:38,795 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:38" (1/1) ... [2022-12-13 22:10:38,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:38" (1/1) ... [2022-12-13 22:10:38,799 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:38" (1/1) ... [2022-12-13 22:10:38,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:38" (1/1) ... [2022-12-13 22:10:38,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:10:38,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:10:38,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:10:38,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:10:38,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:38" (1/1) ... [2022-12-13 22:10:38,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:10:38,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4eefbe7-c656-455b-895f-8e756d5330e3/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:10:38,832 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4eefbe7-c656-455b-895f-8e756d5330e3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 22:10:38,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4eefbe7-c656-455b-895f-8e756d5330e3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 22:10:38,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 22:10:38,867 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-12-13 22:10:38,867 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-12-13 22:10:38,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 22:10:38,867 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 22:10:38,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:10:38,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 22:10:38,868 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 22:10:38,868 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 22:10:38,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 22:10:38,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 22:10:38,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:10:38,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:10:38,870 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 22:10:38,984 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:10:38,986 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:10:39,211 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:10:39,220 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:10:39,221 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 22:10:39,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:10:39 BoogieIcfgContainer [2022-12-13 22:10:39,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:10:39,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 22:10:39,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 22:10:39,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 22:10:39,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:10:38" (1/3) ... [2022-12-13 22:10:39,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@284d72ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:10:39, skipping insertion in model container [2022-12-13 22:10:39,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:10:38" (2/3) ... [2022-12-13 22:10:39,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@284d72ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:10:39, skipping insertion in model container [2022-12-13 22:10:39,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:10:39" (3/3) ... [2022-12-13 22:10:39,233 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2022-12-13 22:10:39,240 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 22:10:39,248 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 22:10:39,248 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-13 22:10:39,248 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 22:10:39,301 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 22:10:39,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 174 places, 171 transitions, 358 flow [2022-12-13 22:10:39,380 INFO L130 PetriNetUnfolder]: 4/169 cut-off events. [2022-12-13 22:10:39,380 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 22:10:39,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 169 events. 4/169 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 190 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 117. Up to 2 conditions per place. [2022-12-13 22:10:39,384 INFO L82 GeneralOperation]: Start removeDead. Operand has 174 places, 171 transitions, 358 flow [2022-12-13 22:10:39,388 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 159 transitions, 327 flow [2022-12-13 22:10:39,391 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 22:10:39,398 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 162 places, 159 transitions, 327 flow [2022-12-13 22:10:39,400 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 162 places, 159 transitions, 327 flow [2022-12-13 22:10:39,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 159 transitions, 327 flow [2022-12-13 22:10:39,427 INFO L130 PetriNetUnfolder]: 4/159 cut-off events. [2022-12-13 22:10:39,427 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 22:10:39,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 159 events. 4/159 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 190 event pairs, 0 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 117. Up to 2 conditions per place. [2022-12-13 22:10:39,430 INFO L119 LiptonReduction]: Number of co-enabled transitions 7748 [2022-12-13 22:10:42,744 INFO L134 LiptonReduction]: Checked pairs total: 21811 [2022-12-13 22:10:42,744 INFO L136 LiptonReduction]: Total number of compositions: 142 [2022-12-13 22:10:42,755 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 22:10:42,759 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;@55b09e63, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 22:10:42,759 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-12-13 22:10:42,763 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-12-13 22:10:42,763 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 22:10:42,763 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:10:42,764 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 22:10:42,764 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)] === [2022-12-13 22:10:42,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:10:42,769 INFO L85 PathProgramCache]: Analyzing trace with hash 17987742, now seen corresponding path program 1 times [2022-12-13 22:10:42,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:10:42,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013539429] [2022-12-13 22:10:42,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:10:42,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:10:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:10:43,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:10:43,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:10:43,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013539429] [2022-12-13 22:10:43,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013539429] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:10:43,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:10:43,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 22:10:43,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614599582] [2022-12-13 22:10:43,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:10:43,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:10:43,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:10:43,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:10:43,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:10:43,063 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 313 [2022-12-13 22:10:43,067 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 54 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 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) [2022-12-13 22:10:43,067 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:10:43,067 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 313 [2022-12-13 22:10:43,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:10:43,673 INFO L130 PetriNetUnfolder]: 4005/6651 cut-off events. [2022-12-13 22:10:43,674 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-12-13 22:10:43,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13101 conditions, 6651 events. 4005/6651 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 43992 event pairs, 1284 based on Foata normal form. 341/5337 useless extension candidates. Maximal degree in co-relation 12901. Up to 4397 conditions per place. [2022-12-13 22:10:43,711 INFO L137 encePairwiseOnDemand]: 298/313 looper letters, 74 selfloop transitions, 4 changer transitions 0/82 dead transitions. [2022-12-13 22:10:43,711 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 82 transitions, 335 flow [2022-12-13 22:10:43,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:10:43,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 22:10:43,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 558 transitions. [2022-12-13 22:10:43,727 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5942492012779552 [2022-12-13 22:10:43,728 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 558 transitions. [2022-12-13 22:10:43,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 558 transitions. [2022-12-13 22:10:43,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:10:43,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 558 transitions. [2022-12-13 22:10:43,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 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) [2022-12-13 22:10:43,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 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) [2022-12-13 22:10:43,745 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 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) [2022-12-13 22:10:43,747 INFO L175 Difference]: Start difference. First operand has 57 places, 54 transitions, 117 flow. Second operand 3 states and 558 transitions. [2022-12-13 22:10:43,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 82 transitions, 335 flow [2022-12-13 22:10:43,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 82 transitions, 327 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 22:10:43,757 INFO L231 Difference]: Finished difference. Result has 56 places, 50 transitions, 134 flow [2022-12-13 22:10:43,759 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=56, PETRI_TRANSITIONS=50} [2022-12-13 22:10:43,762 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, -1 predicate places. [2022-12-13 22:10:43,762 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 50 transitions, 134 flow [2022-12-13 22:10:43,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 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) [2022-12-13 22:10:43,763 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:10:43,763 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 22:10:43,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 22:10:43,764 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)] === [2022-12-13 22:10:43,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:10:43,764 INFO L85 PathProgramCache]: Analyzing trace with hash 109245053, now seen corresponding path program 1 times [2022-12-13 22:10:43,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:10:43,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462332675] [2022-12-13 22:10:43,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:10:43,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:10:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:10:43,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:10:43,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:10:43,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462332675] [2022-12-13 22:10:43,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462332675] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:10:43,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:10:43,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 22:10:43,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652338550] [2022-12-13 22:10:43,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:10:43,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:10:43,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:10:43,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:10:43,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:10:43,859 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 313 [2022-12-13 22:10:43,859 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 50 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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) [2022-12-13 22:10:43,860 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:10:43,860 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 313 [2022-12-13 22:10:43,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:10:44,326 INFO L130 PetriNetUnfolder]: 2884/5080 cut-off events. [2022-12-13 22:10:44,326 INFO L131 PetriNetUnfolder]: For 922/922 co-relation queries the response was YES. [2022-12-13 22:10:44,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10785 conditions, 5080 events. 2884/5080 cut-off events. For 922/922 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 34074 event pairs, 871 based on Foata normal form. 0/4407 useless extension candidates. Maximal degree in co-relation 8890. Up to 3265 conditions per place. [2022-12-13 22:10:44,343 INFO L137 encePairwiseOnDemand]: 308/313 looper letters, 69 selfloop transitions, 2 changer transitions 0/77 dead transitions. [2022-12-13 22:10:44,343 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 77 transitions, 351 flow [2022-12-13 22:10:44,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:10:44,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 22:10:44,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 540 transitions. [2022-12-13 22:10:44,345 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5750798722044729 [2022-12-13 22:10:44,345 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 540 transitions. [2022-12-13 22:10:44,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 540 transitions. [2022-12-13 22:10:44,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:10:44,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 540 transitions. [2022-12-13 22:10:44,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 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) [2022-12-13 22:10:44,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 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) [2022-12-13 22:10:44,351 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 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) [2022-12-13 22:10:44,352 INFO L175 Difference]: Start difference. First operand has 56 places, 50 transitions, 134 flow. Second operand 3 states and 540 transitions. [2022-12-13 22:10:44,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 77 transitions, 351 flow [2022-12-13 22:10:44,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 77 transitions, 339 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 22:10:44,357 INFO L231 Difference]: Finished difference. Result has 55 places, 48 transitions, 130 flow [2022-12-13 22:10:44,357 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=55, PETRI_TRANSITIONS=48} [2022-12-13 22:10:44,358 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, -2 predicate places. [2022-12-13 22:10:44,358 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 48 transitions, 130 flow [2022-12-13 22:10:44,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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) [2022-12-13 22:10:44,358 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:10:44,358 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:10:44,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 22:10:44,359 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-13 22:10:44,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:10:44,359 INFO L85 PathProgramCache]: Analyzing trace with hash -998615362, now seen corresponding path program 1 times [2022-12-13 22:10:44,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:10:44,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873808838] [2022-12-13 22:10:44,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:10:44,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:10:44,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:10:44,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:10:44,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:10:44,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873808838] [2022-12-13 22:10:44,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873808838] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:10:44,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:10:44,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:10:44,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598221058] [2022-12-13 22:10:44,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:10:44,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 22:10:44,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:10:44,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 22:10:44,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 22:10:44,478 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 313 [2022-12-13 22:10:44,479 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 48 transitions, 130 flow. Second operand has 5 states, 5 states have (on average 153.2) internal successors, (766), 5 states have internal predecessors, (766), 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) [2022-12-13 22:10:44,479 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:10:44,479 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 313 [2022-12-13 22:10:44,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:10:44,984 INFO L130 PetriNetUnfolder]: 2842/4759 cut-off events. [2022-12-13 22:10:44,984 INFO L131 PetriNetUnfolder]: For 482/482 co-relation queries the response was YES. [2022-12-13 22:10:44,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10558 conditions, 4759 events. 2842/4759 cut-off events. For 482/482 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 30655 event pairs, 615 based on Foata normal form. 0/4315 useless extension candidates. Maximal degree in co-relation 9539. Up to 1553 conditions per place. [2022-12-13 22:10:44,998 INFO L137 encePairwiseOnDemand]: 307/313 looper letters, 118 selfloop transitions, 7 changer transitions 3/132 dead transitions. [2022-12-13 22:10:44,998 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 132 transitions, 584 flow [2022-12-13 22:10:44,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 22:10:44,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 22:10:45,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 889 transitions. [2022-12-13 22:10:45,002 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5680511182108626 [2022-12-13 22:10:45,002 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 889 transitions. [2022-12-13 22:10:45,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 889 transitions. [2022-12-13 22:10:45,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:10:45,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 889 transitions. [2022-12-13 22:10:45,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 177.8) internal successors, (889), 5 states have internal predecessors, (889), 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) [2022-12-13 22:10:45,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 313.0) internal successors, (1878), 6 states have internal predecessors, (1878), 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) [2022-12-13 22:10:45,014 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 313.0) internal successors, (1878), 6 states have internal predecessors, (1878), 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) [2022-12-13 22:10:45,014 INFO L175 Difference]: Start difference. First operand has 55 places, 48 transitions, 130 flow. Second operand 5 states and 889 transitions. [2022-12-13 22:10:45,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 132 transitions, 584 flow [2022-12-13 22:10:45,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 132 transitions, 574 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 22:10:45,019 INFO L231 Difference]: Finished difference. Result has 56 places, 48 transitions, 140 flow [2022-12-13 22:10:45,019 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=140, PETRI_PLACES=56, PETRI_TRANSITIONS=48} [2022-12-13 22:10:45,020 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, -1 predicate places. [2022-12-13 22:10:45,020 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 48 transitions, 140 flow [2022-12-13 22:10:45,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 153.2) internal successors, (766), 5 states have internal predecessors, (766), 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) [2022-12-13 22:10:45,021 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:10:45,021 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:10:45,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 22:10:45,022 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-13 22:10:45,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:10:45,022 INFO L85 PathProgramCache]: Analyzing trace with hash -998615379, now seen corresponding path program 1 times [2022-12-13 22:10:45,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:10:45,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349933164] [2022-12-13 22:10:45,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:10:45,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:10:45,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:10:45,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:10:45,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:10:45,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349933164] [2022-12-13 22:10:45,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349933164] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:10:45,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:10:45,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:10:45,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890955576] [2022-12-13 22:10:45,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:10:45,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 22:10:45,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:10:45,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 22:10:45,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 22:10:45,106 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 313 [2022-12-13 22:10:45,108 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 48 transitions, 140 flow. Second operand has 5 states, 5 states have (on average 153.2) internal successors, (766), 5 states have internal predecessors, (766), 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) [2022-12-13 22:10:45,108 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:10:45,108 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 313 [2022-12-13 22:10:45,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:10:45,578 INFO L130 PetriNetUnfolder]: 2398/4055 cut-off events. [2022-12-13 22:10:45,578 INFO L131 PetriNetUnfolder]: For 689/689 co-relation queries the response was YES. [2022-12-13 22:10:45,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9180 conditions, 4055 events. 2398/4055 cut-off events. For 689/689 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 25393 event pairs, 516 based on Foata normal form. 197/3920 useless extension candidates. Maximal degree in co-relation 8183. Up to 1526 conditions per place. [2022-12-13 22:10:45,600 INFO L137 encePairwiseOnDemand]: 307/313 looper letters, 107 selfloop transitions, 5 changer transitions 13/128 dead transitions. [2022-12-13 22:10:45,600 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 128 transitions, 562 flow [2022-12-13 22:10:45,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 22:10:45,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 22:10:45,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 886 transitions. [2022-12-13 22:10:45,605 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5661341853035143 [2022-12-13 22:10:45,605 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 886 transitions. [2022-12-13 22:10:45,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 886 transitions. [2022-12-13 22:10:45,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:10:45,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 886 transitions. [2022-12-13 22:10:45,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 177.2) internal successors, (886), 5 states have internal predecessors, (886), 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) [2022-12-13 22:10:45,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 313.0) internal successors, (1878), 6 states have internal predecessors, (1878), 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) [2022-12-13 22:10:45,618 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 313.0) internal successors, (1878), 6 states have internal predecessors, (1878), 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) [2022-12-13 22:10:45,618 INFO L175 Difference]: Start difference. First operand has 56 places, 48 transitions, 140 flow. Second operand 5 states and 886 transitions. [2022-12-13 22:10:45,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 128 transitions, 562 flow [2022-12-13 22:10:45,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 128 transitions, 555 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 22:10:45,624 INFO L231 Difference]: Finished difference. Result has 56 places, 41 transitions, 119 flow [2022-12-13 22:10:45,625 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=119, PETRI_PLACES=56, PETRI_TRANSITIONS=41} [2022-12-13 22:10:45,626 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, -1 predicate places. [2022-12-13 22:10:45,626 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 41 transitions, 119 flow [2022-12-13 22:10:45,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 153.2) internal successors, (766), 5 states have internal predecessors, (766), 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) [2022-12-13 22:10:45,627 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:10:45,627 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:10:45,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 22:10:45,627 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-13 22:10:45,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:10:45,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1068404685, now seen corresponding path program 1 times [2022-12-13 22:10:45,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:10:45,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86289534] [2022-12-13 22:10:45,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:10:45,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:10:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:10:45,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:10:45,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:10:45,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86289534] [2022-12-13 22:10:45,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86289534] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:10:45,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:10:45,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:10:45,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567250818] [2022-12-13 22:10:45,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:10:45,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:10:45,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:10:45,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:10:45,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:10:45,691 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 313 [2022-12-13 22:10:45,692 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 41 transitions, 119 flow. Second operand has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 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) [2022-12-13 22:10:45,692 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:10:45,692 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 313 [2022-12-13 22:10:45,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:10:45,905 INFO L130 PetriNetUnfolder]: 1098/1997 cut-off events. [2022-12-13 22:10:45,906 INFO L131 PetriNetUnfolder]: For 453/458 co-relation queries the response was YES. [2022-12-13 22:10:45,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4406 conditions, 1997 events. 1098/1997 cut-off events. For 453/458 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 10838 event pairs, 606 based on Foata normal form. 0/1978 useless extension candidates. Maximal degree in co-relation 3249. Up to 1022 conditions per place. [2022-12-13 22:10:45,913 INFO L137 encePairwiseOnDemand]: 310/313 looper letters, 61 selfloop transitions, 2 changer transitions 0/67 dead transitions. [2022-12-13 22:10:45,913 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 67 transitions, 317 flow [2022-12-13 22:10:45,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 22:10:45,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 22:10:45,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 686 transitions. [2022-12-13 22:10:45,915 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.547923322683706 [2022-12-13 22:10:45,915 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 686 transitions. [2022-12-13 22:10:45,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 686 transitions. [2022-12-13 22:10:45,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:10:45,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 686 transitions. [2022-12-13 22:10:45,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 171.5) internal successors, (686), 4 states have internal predecessors, (686), 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) [2022-12-13 22:10:45,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 313.0) internal successors, (1565), 5 states have internal predecessors, (1565), 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) [2022-12-13 22:10:45,918 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 313.0) internal successors, (1565), 5 states have internal predecessors, (1565), 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) [2022-12-13 22:10:45,918 INFO L175 Difference]: Start difference. First operand has 56 places, 41 transitions, 119 flow. Second operand 4 states and 686 transitions. [2022-12-13 22:10:45,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 67 transitions, 317 flow [2022-12-13 22:10:45,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 67 transitions, 301 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 22:10:45,919 INFO L231 Difference]: Finished difference. Result has 50 places, 40 transitions, 111 flow [2022-12-13 22:10:45,919 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=111, PETRI_PLACES=50, PETRI_TRANSITIONS=40} [2022-12-13 22:10:45,920 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, -7 predicate places. [2022-12-13 22:10:45,920 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 40 transitions, 111 flow [2022-12-13 22:10:45,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 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) [2022-12-13 22:10:45,920 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:10:45,920 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:10:45,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 22:10:45,920 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-13 22:10:45,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:10:45,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1068404662, now seen corresponding path program 1 times [2022-12-13 22:10:45,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:10:45,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370707147] [2022-12-13 22:10:45,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:10:45,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:10:45,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:10:45,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:10:45,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:10:45,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370707147] [2022-12-13 22:10:45,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370707147] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:10:45,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:10:45,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:10:45,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910699666] [2022-12-13 22:10:45,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:10:45,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:10:45,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:10:45,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:10:45,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:10:45,969 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 313 [2022-12-13 22:10:45,970 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 40 transitions, 111 flow. Second operand has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 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) [2022-12-13 22:10:45,970 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:10:45,970 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 313 [2022-12-13 22:10:45,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:10:46,129 INFO L130 PetriNetUnfolder]: 842/1594 cut-off events. [2022-12-13 22:10:46,130 INFO L131 PetriNetUnfolder]: For 229/233 co-relation queries the response was YES. [2022-12-13 22:10:46,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3494 conditions, 1594 events. 842/1594 cut-off events. For 229/233 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 8441 event pairs, 596 based on Foata normal form. 147/1725 useless extension candidates. Maximal degree in co-relation 2597. Up to 1022 conditions per place. [2022-12-13 22:10:46,132 INFO L137 encePairwiseOnDemand]: 310/313 looper letters, 0 selfloop transitions, 0 changer transitions 66/66 dead transitions. [2022-12-13 22:10:46,132 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 66 transitions, 301 flow [2022-12-13 22:10:46,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 22:10:46,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 22:10:46,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 685 transitions. [2022-12-13 22:10:46,135 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5471246006389776 [2022-12-13 22:10:46,135 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 685 transitions. [2022-12-13 22:10:46,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 685 transitions. [2022-12-13 22:10:46,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:10:46,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 685 transitions. [2022-12-13 22:10:46,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 171.25) internal successors, (685), 4 states have internal predecessors, (685), 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) [2022-12-13 22:10:46,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 313.0) internal successors, (1565), 5 states have internal predecessors, (1565), 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) [2022-12-13 22:10:46,139 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 313.0) internal successors, (1565), 5 states have internal predecessors, (1565), 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) [2022-12-13 22:10:46,140 INFO L175 Difference]: Start difference. First operand has 50 places, 40 transitions, 111 flow. Second operand 4 states and 685 transitions. [2022-12-13 22:10:46,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 66 transitions, 301 flow [2022-12-13 22:10:46,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 66 transitions, 298 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 22:10:46,142 INFO L231 Difference]: Finished difference. Result has 50 places, 0 transitions, 0 flow [2022-12-13 22:10:46,142 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=50, PETRI_TRANSITIONS=0} [2022-12-13 22:10:46,142 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, -7 predicate places. [2022-12-13 22:10:46,142 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 0 transitions, 0 flow [2022-12-13 22:10:46,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 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) [2022-12-13 22:10:46,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2022-12-13 22:10:46,146 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2022-12-13 22:10:46,146 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-12-13 22:10:46,146 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-12-13 22:10:46,146 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 18 remaining) [2022-12-13 22:10:46,146 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 18 remaining) [2022-12-13 22:10:46,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-12-13 22:10:46,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-12-13 22:10:46,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2022-12-13 22:10:46,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2022-12-13 22:10:46,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-12-13 22:10:46,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-12-13 22:10:46,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-12-13 22:10:46,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-12-13 22:10:46,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-12-13 22:10:46,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-12-13 22:10:46,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-12-13 22:10:46,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-12-13 22:10:46,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 22:10:46,149 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-13 22:10:46,154 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 22:10:46,154 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 22:10:46,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 10:10:46 BasicIcfg [2022-12-13 22:10:46,157 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 22:10:46,158 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 22:10:46,158 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 22:10:46,158 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 22:10:46,158 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:10:39" (3/4) ... [2022-12-13 22:10:46,161 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 22:10:46,166 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2022-12-13 22:10:46,166 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-13 22:10:46,170 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-12-13 22:10:46,170 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 22:10:46,170 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 22:10:46,171 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 22:10:46,200 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4eefbe7-c656-455b-895f-8e756d5330e3/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 22:10:46,200 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 22:10:46,201 INFO L158 Benchmark]: Toolchain (without parser) took 7845.30ms. Allocated memory was 115.3MB in the beginning and 289.4MB in the end (delta: 174.1MB). Free memory was 74.1MB in the beginning and 177.6MB in the end (delta: -103.5MB). Peak memory consumption was 72.0MB. Max. memory is 16.1GB. [2022-12-13 22:10:46,201 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 115.3MB. Free memory is still 89.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:10:46,202 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.16ms. Allocated memory is still 115.3MB. Free memory was 73.8MB in the beginning and 54.2MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 22:10:46,202 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.99ms. Allocated memory is still 115.3MB. Free memory was 54.2MB in the beginning and 52.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:10:46,202 INFO L158 Benchmark]: Boogie Preprocessor took 24.93ms. Allocated memory is still 115.3MB. Free memory was 52.1MB in the beginning and 50.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:10:46,203 INFO L158 Benchmark]: RCFGBuilder took 419.47ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 50.4MB in the beginning and 105.7MB in the end (delta: -55.3MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2022-12-13 22:10:46,203 INFO L158 Benchmark]: TraceAbstraction took 6931.23ms. Allocated memory was 144.7MB in the beginning and 289.4MB in the end (delta: 144.7MB). Free memory was 104.9MB in the beginning and 180.8MB in the end (delta: -75.8MB). Peak memory consumption was 193.3MB. Max. memory is 16.1GB. [2022-12-13 22:10:46,203 INFO L158 Benchmark]: Witness Printer took 42.52ms. Allocated memory is still 289.4MB. Free memory was 180.8MB in the beginning and 177.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 22:10:46,205 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 115.3MB. Free memory is still 89.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.16ms. Allocated memory is still 115.3MB. Free memory was 73.8MB in the beginning and 54.2MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.99ms. Allocated memory is still 115.3MB. Free memory was 54.2MB in the beginning and 52.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.93ms. Allocated memory is still 115.3MB. Free memory was 52.1MB in the beginning and 50.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 419.47ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 50.4MB in the beginning and 105.7MB in the end (delta: -55.3MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * TraceAbstraction took 6931.23ms. Allocated memory was 144.7MB in the beginning and 289.4MB in the end (delta: 144.7MB). Free memory was 104.9MB in the beginning and 180.8MB in the end (delta: -75.8MB). Peak memory consumption was 193.3MB. Max. memory is 16.1GB. * Witness Printer took 42.52ms. Allocated memory is still 289.4MB. Free memory was 180.8MB in the beginning and 177.6MB in the end (delta: 3.1MB). 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: 3.3s, 162 PlacesBefore, 57 PlacesAfterwards, 159 TransitionsBefore, 54 TransitionsAfterwards, 7748 CoEnabledTransitionPairs, 6 FixpointIterations, 39 TrivialSequentialCompositions, 90 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 0 ChoiceCompositions, 142 TotalNumberOfCompositions, 21811 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7367, independent: 6902, independent conditional: 0, independent unconditional: 6902, dependent: 465, dependent conditional: 0, dependent unconditional: 465, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4149, independent: 4060, independent conditional: 0, independent unconditional: 4060, dependent: 89, dependent conditional: 0, dependent unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7367, independent: 2842, independent conditional: 0, independent unconditional: 2842, dependent: 376, dependent conditional: 0, dependent unconditional: 376, unknown: 4149, unknown conditional: 0, unknown unconditional: 4149] , Statistics on independence cache: Total cache size (in pairs): 173, Positive cache size: 123, Positive conditional cache size: 0, Positive unconditional cache size: 123, 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, 224 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: 6.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 492 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 422 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 924 IncrementalHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 12 mSDtfsCounter, 924 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=140occurred in iteration=3, InterpolantAutomatonStates: 24, 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, 0.4s 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! [2022-12-13 22:10:46,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4eefbe7-c656-455b-895f-8e756d5330e3/bin/uautomizer-uyxdKDjOR8/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