./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c --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_afb39604-0600-4f7b-9468-7fc632a7d458/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb39604-0600-4f7b-9468-7fc632a7d458/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_afb39604-0600-4f7b-9468-7fc632a7d458/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb39604-0600-4f7b-9468-7fc632a7d458/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb39604-0600-4f7b-9468-7fc632a7d458/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_afb39604-0600-4f7b-9468-7fc632a7d458/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 846c6ea342419c7ea85c72de8af40f1cf8af72c22131b8a3f2ebdacec113c699 --- 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 16:42:28,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:42:28,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:42:28,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:42:28,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:42:28,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:42:28,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:42:28,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:42:28,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:42:28,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:42:28,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:42:28,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:42:28,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:42:28,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:42:28,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:42:28,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:42:28,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:42:28,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:42:28,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:42:28,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:42:28,175 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:42:28,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:42:28,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:42:28,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:42:28,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:42:28,181 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:42:28,181 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:42:28,182 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:42:28,183 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:42:28,183 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:42:28,184 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:42:28,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:42:28,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:42:28,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:42:28,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:42:28,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:42:28,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:42:28,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:42:28,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:42:28,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:42:28,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:42:28,189 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb39604-0600-4f7b-9468-7fc632a7d458/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 16:42:28,209 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:42:28,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:42:28,210 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:42:28,210 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:42:28,210 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:42:28,211 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:42:28,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:42:28,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:42:28,212 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:42:28,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:42:28,212 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:42:28,212 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:42:28,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:42:28,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:42:28,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:42:28,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:42:28,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:42:28,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:42:28,213 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 16:42:28,213 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:42:28,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:42:28,214 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:42:28,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:42:28,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:42:28,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:42:28,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:42:28,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:42:28,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:42:28,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:42:28,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:42:28,215 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:42:28,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:42:28,216 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:42:28,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:42:28,216 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:42:28,216 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:42:28,216 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:42:28,216 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_afb39604-0600-4f7b-9468-7fc632a7d458/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb39604-0600-4f7b-9468-7fc632a7d458/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 846c6ea342419c7ea85c72de8af40f1cf8af72c22131b8a3f2ebdacec113c699 [2022-12-13 16:42:28,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:42:28,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:42:28,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:42:28,439 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:42:28,439 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:42:28,440 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb39604-0600-4f7b-9468-7fc632a7d458/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c [2022-12-13 16:42:30,935 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:42:31,099 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:42:31,099 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb39604-0600-4f7b-9468-7fc632a7d458/sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c [2022-12-13 16:42:31,104 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb39604-0600-4f7b-9468-7fc632a7d458/bin/uautomizer-uyxdKDjOR8/data/dc35c9358/b46101d9e03547408cb4c452d2944847/FLAG826541933 [2022-12-13 16:42:31,512 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb39604-0600-4f7b-9468-7fc632a7d458/bin/uautomizer-uyxdKDjOR8/data/dc35c9358/b46101d9e03547408cb4c452d2944847 [2022-12-13 16:42:31,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:42:31,515 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:42:31,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:42:31,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:42:31,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:42:31,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:42:31" (1/1) ... [2022-12-13 16:42:31,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7618c654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:31, skipping insertion in model container [2022-12-13 16:42:31,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:42:31" (1/1) ... [2022-12-13 16:42:31,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:42:31,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:42:31,649 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_afb39604-0600-4f7b-9468-7fc632a7d458/sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c[2495,2508] [2022-12-13 16:42:31,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:42:31,660 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:42:31,675 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_afb39604-0600-4f7b-9468-7fc632a7d458/sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c[2495,2508] [2022-12-13 16:42:31,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:42:31,688 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:42:31,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:31 WrapperNode [2022-12-13 16:42:31,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:42:31,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:42:31,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:42:31,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:42:31,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:31" (1/1) ... [2022-12-13 16:42:31,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:31" (1/1) ... [2022-12-13 16:42:31,717 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 170 [2022-12-13 16:42:31,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:42:31,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:42:31,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:42:31,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:42:31,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:31" (1/1) ... [2022-12-13 16:42:31,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:31" (1/1) ... [2022-12-13 16:42:31,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:31" (1/1) ... [2022-12-13 16:42:31,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:31" (1/1) ... [2022-12-13 16:42:31,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:31" (1/1) ... [2022-12-13 16:42:31,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:31" (1/1) ... [2022-12-13 16:42:31,733 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:31" (1/1) ... [2022-12-13 16:42:31,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:31" (1/1) ... [2022-12-13 16:42:31,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:42:31,736 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:42:31,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:42:31,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:42:31,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:31" (1/1) ... [2022-12-13 16:42:31,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:42:31,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb39604-0600-4f7b-9468-7fc632a7d458/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:42:31,759 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb39604-0600-4f7b-9468-7fc632a7d458/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:42:31,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb39604-0600-4f7b-9468-7fc632a7d458/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:42:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:42:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 16:42:31,786 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 16:42:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 16:42:31,786 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 16:42:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:42:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:42:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 16:42:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:42:31,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:42:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 16:42:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:42:31,788 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 16:42:31,870 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:42:31,871 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:42:32,133 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:42:32,142 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:42:32,142 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 16:42:32,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:42:32 BoogieIcfgContainer [2022-12-13 16:42:32,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:42:32,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:42:32,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:42:32,150 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:42:32,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:42:31" (1/3) ... [2022-12-13 16:42:32,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179c4cbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:42:32, skipping insertion in model container [2022-12-13 16:42:32,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:31" (2/3) ... [2022-12-13 16:42:32,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179c4cbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:42:32, skipping insertion in model container [2022-12-13 16:42:32,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:42:32" (3/3) ... [2022-12-13 16:42:32,153 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-symm.wvr.c [2022-12-13 16:42:32,161 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 16:42:32,172 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:42:32,172 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-12-13 16:42:32,172 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 16:42:32,259 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 16:42:32,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 221 places, 233 transitions, 482 flow [2022-12-13 16:42:32,380 INFO L130 PetriNetUnfolder]: 19/231 cut-off events. [2022-12-13 16:42:32,380 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 16:42:32,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 231 events. 19/231 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 507 event pairs, 0 based on Foata normal form. 0/200 useless extension candidates. Maximal degree in co-relation 155. Up to 2 conditions per place. [2022-12-13 16:42:32,386 INFO L82 GeneralOperation]: Start removeDead. Operand has 221 places, 233 transitions, 482 flow [2022-12-13 16:42:32,390 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 187 places, 196 transitions, 401 flow [2022-12-13 16:42:32,393 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 16:42:32,402 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 187 places, 196 transitions, 401 flow [2022-12-13 16:42:32,404 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 187 places, 196 transitions, 401 flow [2022-12-13 16:42:32,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 187 places, 196 transitions, 401 flow [2022-12-13 16:42:32,438 INFO L130 PetriNetUnfolder]: 16/196 cut-off events. [2022-12-13 16:42:32,439 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 16:42:32,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 196 events. 16/196 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 445 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 155. Up to 2 conditions per place. [2022-12-13 16:42:32,444 INFO L119 LiptonReduction]: Number of co-enabled transitions 12528 [2022-12-13 16:42:40,552 INFO L134 LiptonReduction]: Checked pairs total: 12027 [2022-12-13 16:42:40,553 INFO L136 LiptonReduction]: Total number of compositions: 269 [2022-12-13 16:42:40,563 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:42:40,567 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;@2aff951f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:42:40,567 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-12-13 16:42:40,569 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2022-12-13 16:42:40,569 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:42:40,569 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:42:40,569 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 16:42:40,570 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-12-13 16:42:40,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:42:40,573 INFO L85 PathProgramCache]: Analyzing trace with hash 957338, now seen corresponding path program 1 times [2022-12-13 16:42:40,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:42:40,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191709507] [2022-12-13 16:42:40,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:42:40,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:42:40,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:42:40,726 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 16:42:40,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:42:40,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191709507] [2022-12-13 16:42:40,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191709507] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:42:40,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:42:40,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 16:42:40,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733436937] [2022-12-13 16:42:40,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:42:40,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:42:40,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:42:40,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:42:40,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:42:40,769 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 502 [2022-12-13 16:42:40,772 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 21 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 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 16:42:40,773 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:42:40,773 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 502 [2022-12-13 16:42:40,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:42:40,841 INFO L130 PetriNetUnfolder]: 72/143 cut-off events. [2022-12-13 16:42:40,841 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-12-13 16:42:40,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 143 events. 72/143 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 502 event pairs, 72 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 256. Up to 143 conditions per place. [2022-12-13 16:42:40,843 INFO L137 encePairwiseOnDemand]: 495/502 looper letters, 14 selfloop transitions, 1 changer transitions 0/15 dead transitions. [2022-12-13 16:42:40,844 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 15 transitions, 69 flow [2022-12-13 16:42:40,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:42:40,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:42:40,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 678 transitions. [2022-12-13 16:42:40,855 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.450199203187251 [2022-12-13 16:42:40,856 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 678 transitions. [2022-12-13 16:42:40,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 678 transitions. [2022-12-13 16:42:40,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:42:40,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 678 transitions. [2022-12-13 16:42:40,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 226.0) internal successors, (678), 3 states have internal predecessors, (678), 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 16:42:40,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 502.0) internal successors, (2008), 4 states have internal predecessors, (2008), 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 16:42:40,867 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 502.0) internal successors, (2008), 4 states have internal predecessors, (2008), 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 16:42:40,869 INFO L175 Difference]: Start difference. First operand has 28 places, 21 transitions, 51 flow. Second operand 3 states and 678 transitions. [2022-12-13 16:42:40,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 15 transitions, 69 flow [2022-12-13 16:42:40,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 15 transitions, 64 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 16:42:40,872 INFO L231 Difference]: Finished difference. Result has 21 places, 15 transitions, 36 flow [2022-12-13 16:42:40,873 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=502, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=36, PETRI_PLACES=21, PETRI_TRANSITIONS=15} [2022-12-13 16:42:40,876 INFO L288 CegarLoopForPetriNet]: 28 programPoint places, -7 predicate places. [2022-12-13 16:42:40,876 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 15 transitions, 36 flow [2022-12-13 16:42:40,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 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 16:42:40,877 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:42:40,877 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 16:42:40,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:42:40,877 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-12-13 16:42:40,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:42:40,877 INFO L85 PathProgramCache]: Analyzing trace with hash 957366, now seen corresponding path program 1 times [2022-12-13 16:42:40,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:42:40,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031252951] [2022-12-13 16:42:40,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:42:40,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:42:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:42:40,946 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 16:42:40,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:42:40,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031252951] [2022-12-13 16:42:40,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031252951] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:42:40,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:42:40,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 16:42:40,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574216804] [2022-12-13 16:42:40,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:42:40,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:42:40,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:42:40,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:42:40,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:42:40,955 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 502 [2022-12-13 16:42:40,957 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 15 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 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 16:42:40,957 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:42:40,957 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 502 [2022-12-13 16:42:40,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:42:41,002 INFO L130 PetriNetUnfolder]: 45/94 cut-off events. [2022-12-13 16:42:41,002 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:42:41,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 94 events. 45/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 280 event pairs, 45 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 195. Up to 94 conditions per place. [2022-12-13 16:42:41,003 INFO L137 encePairwiseOnDemand]: 499/502 looper letters, 12 selfloop transitions, 1 changer transitions 0/13 dead transitions. [2022-12-13 16:42:41,003 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 13 transitions, 58 flow [2022-12-13 16:42:41,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:42:41,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:42:41,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 672 transitions. [2022-12-13 16:42:41,008 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44621513944223107 [2022-12-13 16:42:41,008 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 672 transitions. [2022-12-13 16:42:41,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 672 transitions. [2022-12-13 16:42:41,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:42:41,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 672 transitions. [2022-12-13 16:42:41,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 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 16:42:41,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 502.0) internal successors, (2008), 4 states have internal predecessors, (2008), 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 16:42:41,012 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 502.0) internal successors, (2008), 4 states have internal predecessors, (2008), 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 16:42:41,012 INFO L175 Difference]: Start difference. First operand has 21 places, 15 transitions, 36 flow. Second operand 3 states and 672 transitions. [2022-12-13 16:42:41,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 13 transitions, 58 flow [2022-12-13 16:42:41,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 13 transitions, 57 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 16:42:41,013 INFO L231 Difference]: Finished difference. Result has 20 places, 13 transitions, 33 flow [2022-12-13 16:42:41,013 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=502, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=33, PETRI_PLACES=20, PETRI_TRANSITIONS=13} [2022-12-13 16:42:41,013 INFO L288 CegarLoopForPetriNet]: 28 programPoint places, -8 predicate places. [2022-12-13 16:42:41,013 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 13 transitions, 33 flow [2022-12-13 16:42:41,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 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 16:42:41,014 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:42:41,014 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 16:42:41,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 16:42:41,014 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-12-13 16:42:41,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:42:41,015 INFO L85 PathProgramCache]: Analyzing trace with hash 957368, now seen corresponding path program 1 times [2022-12-13 16:42:41,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:42:41,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584231472] [2022-12-13 16:42:41,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:42:41,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:42:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:42:41,087 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 16:42:41,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:42:41,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584231472] [2022-12-13 16:42:41,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584231472] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:42:41,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:42:41,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 16:42:41,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412397361] [2022-12-13 16:42:41,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:42:41,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:42:41,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:42:41,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:42:41,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:42:41,095 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 502 [2022-12-13 16:42:41,096 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 13 transitions, 33 flow. Second operand has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 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 16:42:41,096 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:42:41,096 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 502 [2022-12-13 16:42:41,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:42:41,134 INFO L130 PetriNetUnfolder]: 24/55 cut-off events. [2022-12-13 16:42:41,134 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:42:41,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 55 events. 24/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 125 event pairs, 24 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 115. Up to 55 conditions per place. [2022-12-13 16:42:41,134 INFO L137 encePairwiseOnDemand]: 499/502 looper letters, 10 selfloop transitions, 1 changer transitions 0/11 dead transitions. [2022-12-13 16:42:41,135 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 11 transitions, 51 flow [2022-12-13 16:42:41,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:42:41,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:42:41,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 670 transitions. [2022-12-13 16:42:41,136 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4448871181938911 [2022-12-13 16:42:41,136 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 670 transitions. [2022-12-13 16:42:41,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 670 transitions. [2022-12-13 16:42:41,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:42:41,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 670 transitions. [2022-12-13 16:42:41,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:42:41,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 502.0) internal successors, (2008), 4 states have internal predecessors, (2008), 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 16:42:41,140 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 502.0) internal successors, (2008), 4 states have internal predecessors, (2008), 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 16:42:41,140 INFO L175 Difference]: Start difference. First operand has 20 places, 13 transitions, 33 flow. Second operand 3 states and 670 transitions. [2022-12-13 16:42:41,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 11 transitions, 51 flow [2022-12-13 16:42:41,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 11 transitions, 50 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 16:42:41,140 INFO L231 Difference]: Finished difference. Result has 19 places, 11 transitions, 30 flow [2022-12-13 16:42:41,141 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=502, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=30, PETRI_PLACES=19, PETRI_TRANSITIONS=11} [2022-12-13 16:42:41,141 INFO L288 CegarLoopForPetriNet]: 28 programPoint places, -9 predicate places. [2022-12-13 16:42:41,141 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 11 transitions, 30 flow [2022-12-13 16:42:41,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 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 16:42:41,142 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:42:41,142 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 16:42:41,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 16:42:41,142 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-12-13 16:42:41,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:42:41,142 INFO L85 PathProgramCache]: Analyzing trace with hash 957367, now seen corresponding path program 1 times [2022-12-13 16:42:41,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:42:41,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521053165] [2022-12-13 16:42:41,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:42:41,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:42:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:42:41,191 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 16:42:41,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:42:41,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521053165] [2022-12-13 16:42:41,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521053165] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:42:41,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:42:41,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 16:42:41,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854968129] [2022-12-13 16:42:41,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:42:41,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:42:41,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:42:41,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:42:41,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:42:41,199 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 502 [2022-12-13 16:42:41,200 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 11 transitions, 30 flow. Second operand has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 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 16:42:41,201 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:42:41,201 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 502 [2022-12-13 16:42:41,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:42:41,229 INFO L130 PetriNetUnfolder]: 9/26 cut-off events. [2022-12-13 16:42:41,229 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:42:41,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 26 events. 9/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 9 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 55. Up to 26 conditions per place. [2022-12-13 16:42:41,230 INFO L137 encePairwiseOnDemand]: 499/502 looper letters, 0 selfloop transitions, 0 changer transitions 9/9 dead transitions. [2022-12-13 16:42:41,230 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 9 transitions, 44 flow [2022-12-13 16:42:41,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:42:41,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:42:41,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 668 transitions. [2022-12-13 16:42:41,233 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4435590969455511 [2022-12-13 16:42:41,233 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 668 transitions. [2022-12-13 16:42:41,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 668 transitions. [2022-12-13 16:42:41,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:42:41,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 668 transitions. [2022-12-13 16:42:41,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 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 16:42:41,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 502.0) internal successors, (2008), 4 states have internal predecessors, (2008), 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 16:42:41,240 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 502.0) internal successors, (2008), 4 states have internal predecessors, (2008), 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 16:42:41,240 INFO L175 Difference]: Start difference. First operand has 19 places, 11 transitions, 30 flow. Second operand 3 states and 668 transitions. [2022-12-13 16:42:41,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 9 transitions, 44 flow [2022-12-13 16:42:41,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 9 transitions, 43 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 16:42:41,241 INFO L231 Difference]: Finished difference. Result has 18 places, 0 transitions, 0 flow [2022-12-13 16:42:41,241 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=502, PETRI_DIFFERENCE_MINUEND_FLOW=25, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=18, PETRI_TRANSITIONS=0} [2022-12-13 16:42:41,241 INFO L288 CegarLoopForPetriNet]: 28 programPoint places, -10 predicate places. [2022-12-13 16:42:41,242 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 0 transitions, 0 flow [2022-12-13 16:42:41,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 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 16:42:41,244 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 26 remaining) [2022-12-13 16:42:41,244 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2022-12-13 16:42:41,244 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2022-12-13 16:42:41,244 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2022-12-13 16:42:41,244 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2022-12-13 16:42:41,245 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2022-12-13 16:42:41,245 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2022-12-13 16:42:41,245 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2022-12-13 16:42:41,245 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2022-12-13 16:42:41,245 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2022-12-13 16:42:41,245 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2022-12-13 16:42:41,245 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2022-12-13 16:42:41,245 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 26 remaining) [2022-12-13 16:42:41,245 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2022-12-13 16:42:41,246 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2022-12-13 16:42:41,246 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2022-12-13 16:42:41,246 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2022-12-13 16:42:41,246 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2022-12-13 16:42:41,246 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2022-12-13 16:42:41,246 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2022-12-13 16:42:41,246 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2022-12-13 16:42:41,246 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2022-12-13 16:42:41,246 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2022-12-13 16:42:41,247 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2022-12-13 16:42:41,247 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2022-12-13 16:42:41,247 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2022-12-13 16:42:41,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 16:42:41,247 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 16:42:41,251 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 16:42:41,251 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:42:41,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:42:41 BasicIcfg [2022-12-13 16:42:41,254 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:42:41,254 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:42:41,254 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:42:41,254 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:42:41,254 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:42:32" (3/4) ... [2022-12-13 16:42:41,256 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 16:42:41,261 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-13 16:42:41,261 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-13 16:42:41,264 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-12-13 16:42:41,264 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 16:42:41,264 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 16:42:41,264 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 16:42:41,289 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb39604-0600-4f7b-9468-7fc632a7d458/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 16:42:41,289 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:42:41,290 INFO L158 Benchmark]: Toolchain (without parser) took 9774.35ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 102.1MB in the beginning and 55.4MB in the end (delta: 46.7MB). Peak memory consumption was 76.0MB. Max. memory is 16.1GB. [2022-12-13 16:42:41,290 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 134.2MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:42:41,291 INFO L158 Benchmark]: CACSL2BoogieTranslator took 172.04ms. Allocated memory is still 134.2MB. Free memory was 101.7MB in the beginning and 90.8MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 16:42:41,291 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.42ms. Allocated memory is still 134.2MB. Free memory was 90.4MB in the beginning and 88.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:42:41,292 INFO L158 Benchmark]: Boogie Preprocessor took 17.99ms. Allocated memory is still 134.2MB. Free memory was 88.3MB in the beginning and 87.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:42:41,292 INFO L158 Benchmark]: RCFGBuilder took 408.73ms. Allocated memory is still 134.2MB. Free memory was 87.0MB in the beginning and 68.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 16:42:41,293 INFO L158 Benchmark]: TraceAbstraction took 9106.55ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 67.3MB in the beginning and 57.5MB in the end (delta: 9.8MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. [2022-12-13 16:42:41,293 INFO L158 Benchmark]: Witness Printer took 35.28ms. Allocated memory is still 161.5MB. Free memory was 57.5MB in the beginning and 55.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:42:41,296 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 134.2MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 172.04ms. Allocated memory is still 134.2MB. Free memory was 101.7MB in the beginning and 90.8MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.42ms. Allocated memory is still 134.2MB. Free memory was 90.4MB in the beginning and 88.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.99ms. Allocated memory is still 134.2MB. Free memory was 88.3MB in the beginning and 87.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 408.73ms. Allocated memory is still 134.2MB. Free memory was 87.0MB in the beginning and 68.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 9106.55ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 67.3MB in the beginning and 57.5MB in the end (delta: 9.8MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. * Witness Printer took 35.28ms. Allocated memory is still 161.5MB. Free memory was 57.5MB in the beginning and 55.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.1s, 187 PlacesBefore, 28 PlacesAfterwards, 196 TransitionsBefore, 21 TransitionsAfterwards, 12528 CoEnabledTransitionPairs, 8 FixpointIterations, 38 TrivialSequentialCompositions, 161 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 54 ConcurrentYvCompositions, 16 ChoiceCompositions, 269 TotalNumberOfCompositions, 12027 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12027, independent: 12027, independent conditional: 0, independent unconditional: 12027, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7682, independent: 7682, independent conditional: 0, independent unconditional: 7682, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 12027, independent: 4345, independent conditional: 0, independent unconditional: 4345, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 7682, unknown conditional: 0, unknown unconditional: 7682] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: 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, 347 locations, 26 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: 9.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 76 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 6 mSDtfsCounter, 70 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 16:42:41,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb39604-0600-4f7b-9468-7fc632a7d458/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