./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 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45a6013-e781-4c44-9679-ef45f16f08e6/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45a6013-e781-4c44-9679-ef45f16f08e6/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45a6013-e781-4c44-9679-ef45f16f08e6/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45a6013-e781-4c44-9679-ef45f16f08e6/bin/uautomizer-QkZJyEgLgS/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_c45a6013-e781-4c44-9679-ef45f16f08e6/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45a6013-e781-4c44-9679-ef45f16f08e6/bin/uautomizer-QkZJyEgLgS --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-4e7fbc6 [2022-11-23 03:10:10,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:10:10,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:10:10,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:10:10,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:10:10,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:10:10,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:10:10,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:10:10,162 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:10:10,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:10:10,169 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:10:10,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:10:10,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:10:10,172 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:10:10,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:10:10,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:10:10,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:10:10,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:10:10,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:10:10,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:10:10,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:10:10,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:10:10,202 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:10:10,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:10:10,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:10:10,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:10:10,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:10:10,219 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:10:10,220 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:10:10,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:10:10,222 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:10:10,223 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:10:10,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:10:10,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:10:10,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:10:10,228 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:10:10,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:10:10,231 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:10:10,231 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:10:10,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:10:10,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:10:10,236 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45a6013-e781-4c44-9679-ef45f16f08e6/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-23 03:10:10,292 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:10:10,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:10:10,293 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:10:10,294 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:10:10,295 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:10:10,295 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:10:10,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:10:10,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:10:10,297 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:10:10,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:10:10,299 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:10:10,300 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:10:10,300 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:10:10,300 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:10:10,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:10:10,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:10:10,301 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:10:10,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:10:10,302 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:10:10,303 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:10:10,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:10:10,303 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:10:10,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:10:10,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:10:10,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:10:10,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:10:10,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:10:10,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:10:10,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:10:10,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:10:10,307 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:10:10,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:10:10,307 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:10:10,308 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:10:10,308 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:10:10,308 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:10:10,309 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_c45a6013-e781-4c44-9679-ef45f16f08e6/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45a6013-e781-4c44-9679-ef45f16f08e6/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 [2022-11-23 03:10:10,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:10:10,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:10:10,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:10:10,676 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:10:10,677 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:10:10,679 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45a6013-e781-4c44-9679-ef45f16f08e6/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2022-11-23 03:10:13,886 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:10:14,212 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:10:14,213 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45a6013-e781-4c44-9679-ef45f16f08e6/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2022-11-23 03:10:14,227 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45a6013-e781-4c44-9679-ef45f16f08e6/bin/uautomizer-QkZJyEgLgS/data/7b90ff8db/190c45926e764508a864ebb3f2e78cfd/FLAG23278c779 [2022-11-23 03:10:14,242 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45a6013-e781-4c44-9679-ef45f16f08e6/bin/uautomizer-QkZJyEgLgS/data/7b90ff8db/190c45926e764508a864ebb3f2e78cfd [2022-11-23 03:10:14,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:10:14,247 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:10:14,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:10:14,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:10:14,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:10:14,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:10:14" (1/1) ... [2022-11-23 03:10:14,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28a65469 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:14, skipping insertion in model container [2022-11-23 03:10:14,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:10:14" (1/1) ... [2022-11-23 03:10:14,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:10:14,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:10:14,460 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_c45a6013-e781-4c44-9679-ef45f16f08e6/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2022-11-23 03:10:14,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:10:14,759 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:10:14,777 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_c45a6013-e781-4c44-9679-ef45f16f08e6/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2022-11-23 03:10:14,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:10:14,904 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:10:14,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:14 WrapperNode [2022-11-23 03:10:14,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:10:14,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:10:14,906 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:10:14,907 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:10:14,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:14" (1/1) ... [2022-11-23 03:10:14,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:14" (1/1) ... [2022-11-23 03:10:14,986 INFO L138 Inliner]: procedures = 163, calls = 52, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 104 [2022-11-23 03:10:14,987 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:10:14,988 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:10:14,988 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:10:14,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:10:14,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:14" (1/1) ... [2022-11-23 03:10:15,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:14" (1/1) ... [2022-11-23 03:10:15,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:14" (1/1) ... [2022-11-23 03:10:15,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:14" (1/1) ... [2022-11-23 03:10:15,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:14" (1/1) ... [2022-11-23 03:10:15,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:14" (1/1) ... [2022-11-23 03:10:15,036 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:14" (1/1) ... [2022-11-23 03:10:15,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:14" (1/1) ... [2022-11-23 03:10:15,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:10:15,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:10:15,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:10:15,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:10:15,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:14" (1/1) ... [2022-11-23 03:10:15,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:10:15,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45a6013-e781-4c44-9679-ef45f16f08e6/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:15,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45a6013-e781-4c44-9679-ef45f16f08e6/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:15,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45a6013-e781-4c44-9679-ef45f16f08e6/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:10:15,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 03:10:15,143 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-23 03:10:15,143 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-23 03:10:15,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 03:10:15,143 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 03:10:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:10:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:10:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-23 03:10:15,144 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-23 03:10:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:10:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:10:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:10:15,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:10:15,147 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 03:10:15,286 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:10:15,288 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:10:15,652 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:10:15,669 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:10:15,670 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 03:10:15,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:10:15 BoogieIcfgContainer [2022-11-23 03:10:15,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:10:15,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:10:15,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:10:15,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:10:15,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:10:14" (1/3) ... [2022-11-23 03:10:15,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@425c154d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:10:15, skipping insertion in model container [2022-11-23 03:10:15,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:14" (2/3) ... [2022-11-23 03:10:15,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@425c154d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:10:15, skipping insertion in model container [2022-11-23 03:10:15,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:10:15" (3/3) ... [2022-11-23 03:10:15,689 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2022-11-23 03:10:15,713 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 03:10:15,725 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:10:15,725 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-23 03:10:15,726 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 03:10:15,852 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-23 03:10:15,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 174 places, 171 transitions, 358 flow [2022-11-23 03:10:16,110 INFO L130 PetriNetUnfolder]: 4/169 cut-off events. [2022-11-23 03:10:16,110 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 03:10:16,120 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. [2022-11-23 03:10:16,121 INFO L82 GeneralOperation]: Start removeDead. Operand has 174 places, 171 transitions, 358 flow [2022-11-23 03:10:16,129 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 159 transitions, 327 flow [2022-11-23 03:10:16,133 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 03:10:16,166 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 162 places, 159 transitions, 327 flow [2022-11-23 03:10:16,170 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 162 places, 159 transitions, 327 flow [2022-11-23 03:10:16,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 159 transitions, 327 flow [2022-11-23 03:10:16,325 INFO L130 PetriNetUnfolder]: 4/159 cut-off events. [2022-11-23 03:10:16,330 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-23 03:10:16,333 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. [2022-11-23 03:10:16,339 INFO L119 LiptonReduction]: Number of co-enabled transitions 7748 [2022-11-23 03:10:22,752 INFO L134 LiptonReduction]: Checked pairs total: 24374 [2022-11-23 03:10:22,753 INFO L136 LiptonReduction]: Total number of compositions: 152 [2022-11-23 03:10:22,787 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:10:22,796 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;@145a33eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:10:22,796 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-23 03:10:22,804 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-11-23 03:10:22,804 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:10:22,805 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:10:22,806 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-23 03:10:22,807 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:10:22,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:22,816 INFO L85 PathProgramCache]: Analyzing trace with hash 18257899, now seen corresponding path program 1 times [2022-11-23 03:10:22,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:22,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971973772] [2022-11-23 03:10:22,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:22,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:22,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:23,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:23,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:23,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971973772] [2022-11-23 03:10:23,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971973772] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:10:23,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:10:23,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:10:23,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669769315] [2022-11-23 03:10:23,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:10:23,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:10:23,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:10:23,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:10:23,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:10:23,227 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 323 [2022-11-23 03:10:23,230 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 50 transitions, 109 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) [2022-11-23 03:10:23,231 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:10:23,231 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 323 [2022-11-23 03:10:23,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:10:24,030 INFO L130 PetriNetUnfolder]: 3398/5698 cut-off events. [2022-11-23 03:10:24,030 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2022-11-23 03:10:24,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11200 conditions, 5698 events. 3398/5698 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 36339 event pairs, 1034 based on Foata normal form. 0/4596 useless extension candidates. Maximal degree in co-relation 11000. Up to 3534 conditions per place. [2022-11-23 03:10:24,067 INFO L137 encePairwiseOnDemand]: 311/323 looper letters, 69 selfloop transitions, 4 changer transitions 0/77 dead transitions. [2022-11-23 03:10:24,068 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 77 transitions, 315 flow [2022-11-23 03:10:24,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:10:24,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:10:24,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 553 transitions. [2022-11-23 03:10:24,082 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5706914344685242 [2022-11-23 03:10:24,083 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 553 transitions. [2022-11-23 03:10:24,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 553 transitions. [2022-11-23 03:10:24,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:10:24,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 553 transitions. [2022-11-23 03:10:24,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 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) [2022-11-23 03:10:24,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 323.0) internal successors, (1292), 4 states have internal predecessors, (1292), 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) [2022-11-23 03:10:24,100 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 323.0) internal successors, (1292), 4 states have internal predecessors, (1292), 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) [2022-11-23 03:10:24,102 INFO L175 Difference]: Start difference. First operand has 53 places, 50 transitions, 109 flow. Second operand 3 states and 553 transitions. [2022-11-23 03:10:24,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 77 transitions, 315 flow [2022-11-23 03:10:24,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 77 transitions, 307 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-23 03:10:24,111 INFO L231 Difference]: Finished difference. Result has 52 places, 46 transitions, 120 flow [2022-11-23 03:10:24,113 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=52, PETRI_TRANSITIONS=46} [2022-11-23 03:10:24,116 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -1 predicate places. [2022-11-23 03:10:24,117 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 46 transitions, 120 flow [2022-11-23 03:10:24,117 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) [2022-11-23 03:10:24,117 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:10:24,118 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 03:10:24,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:10:24,118 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:10:24,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:24,119 INFO L85 PathProgramCache]: Analyzing trace with hash 367175536, now seen corresponding path program 1 times [2022-11-23 03:10:24,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:24,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277710346] [2022-11-23 03:10:24,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:24,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:24,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:24,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:24,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277710346] [2022-11-23 03:10:24,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277710346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:10:24,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:10:24,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:10:24,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516524744] [2022-11-23 03:10:24,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:10:24,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:10:24,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:10:24,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:10:24,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:10:24,227 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 323 [2022-11-23 03:10:24,228 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 46 transitions, 120 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) [2022-11-23 03:10:24,228 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:10:24,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 323 [2022-11-23 03:10:24,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:10:24,832 INFO L130 PetriNetUnfolder]: 2470/4393 cut-off events. [2022-11-23 03:10:24,833 INFO L131 PetriNetUnfolder]: For 749/749 co-relation queries the response was YES. [2022-11-23 03:10:24,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9177 conditions, 4393 events. 2470/4393 cut-off events. For 749/749 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 28405 event pairs, 721 based on Foata normal form. 0/3888 useless extension candidates. Maximal degree in co-relation 8208. Up to 2761 conditions per place. [2022-11-23 03:10:24,859 INFO L137 encePairwiseOnDemand]: 319/323 looper letters, 62 selfloop transitions, 2 changer transitions 0/70 dead transitions. [2022-11-23 03:10:24,859 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 70 transitions, 311 flow [2022-11-23 03:10:24,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:10:24,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:10:24,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 532 transitions. [2022-11-23 03:10:24,862 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5490196078431373 [2022-11-23 03:10:24,862 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 532 transitions. [2022-11-23 03:10:24,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 532 transitions. [2022-11-23 03:10:24,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:10:24,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 532 transitions. [2022-11-23 03:10:24,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 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) [2022-11-23 03:10:24,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 323.0) internal successors, (1292), 4 states have internal predecessors, (1292), 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) [2022-11-23 03:10:24,867 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 323.0) internal successors, (1292), 4 states have internal predecessors, (1292), 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) [2022-11-23 03:10:24,868 INFO L175 Difference]: Start difference. First operand has 52 places, 46 transitions, 120 flow. Second operand 3 states and 532 transitions. [2022-11-23 03:10:24,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 70 transitions, 311 flow [2022-11-23 03:10:24,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 70 transitions, 299 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 03:10:24,872 INFO L231 Difference]: Finished difference. Result has 50 places, 44 transitions, 112 flow [2022-11-23 03:10:24,872 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=50, PETRI_TRANSITIONS=44} [2022-11-23 03:10:24,873 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -3 predicate places. [2022-11-23 03:10:24,873 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 112 flow [2022-11-23 03:10:24,873 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) [2022-11-23 03:10:24,873 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:10:24,873 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:10:24,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:10:24,874 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)] === [2022-11-23 03:10:24,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:24,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1540310460, now seen corresponding path program 1 times [2022-11-23 03:10:24,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:24,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636337708] [2022-11-23 03:10:24,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:24,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:24,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:25,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:25,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:25,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636337708] [2022-11-23 03:10:25,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636337708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:10:25,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:10:25,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:10:25,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810955337] [2022-11-23 03:10:25,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:10:25,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:10:25,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:10:25,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:10:25,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:10:25,049 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 323 [2022-11-23 03:10:25,050 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 112 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) [2022-11-23 03:10:25,051 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:10:25,051 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 323 [2022-11-23 03:10:25,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:10:25,682 INFO L130 PetriNetUnfolder]: 2470/4169 cut-off events. [2022-11-23 03:10:25,683 INFO L131 PetriNetUnfolder]: For 360/360 co-relation queries the response was YES. [2022-11-23 03:10:25,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8889 conditions, 4169 events. 2470/4169 cut-off events. For 360/360 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 25847 event pairs, 545 based on Foata normal form. 0/3833 useless extension candidates. Maximal degree in co-relation 7925. Up to 1268 conditions per place. [2022-11-23 03:10:25,704 INFO L137 encePairwiseOnDemand]: 317/323 looper letters, 108 selfloop transitions, 7 changer transitions 3/122 dead transitions. [2022-11-23 03:10:25,704 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 122 transitions, 519 flow [2022-11-23 03:10:25,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:10:25,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-23 03:10:25,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 879 transitions. [2022-11-23 03:10:25,707 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5442724458204334 [2022-11-23 03:10:25,708 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 879 transitions. [2022-11-23 03:10:25,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 879 transitions. [2022-11-23 03:10:25,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:10:25,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 879 transitions. [2022-11-23 03:10:25,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 175.8) internal successors, (879), 5 states have internal predecessors, (879), 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) [2022-11-23 03:10:25,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 323.0) internal successors, (1938), 6 states have internal predecessors, (1938), 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) [2022-11-23 03:10:25,720 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 323.0) internal successors, (1938), 6 states have internal predecessors, (1938), 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) [2022-11-23 03:10:25,721 INFO L175 Difference]: Start difference. First operand has 50 places, 44 transitions, 112 flow. Second operand 5 states and 879 transitions. [2022-11-23 03:10:25,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 122 transitions, 519 flow [2022-11-23 03:10:25,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 122 transitions, 509 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 03:10:25,725 INFO L231 Difference]: Finished difference. Result has 51 places, 44 transitions, 122 flow [2022-11-23 03:10:25,726 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=122, PETRI_PLACES=51, PETRI_TRANSITIONS=44} [2022-11-23 03:10:25,726 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -2 predicate places. [2022-11-23 03:10:25,727 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 44 transitions, 122 flow [2022-11-23 03:10:25,727 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) [2022-11-23 03:10:25,728 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:10:25,728 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:10:25,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 03:10:25,728 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)] === [2022-11-23 03:10:25,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:25,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1540310471, now seen corresponding path program 1 times [2022-11-23 03:10:25,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:25,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662909808] [2022-11-23 03:10:25,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:25,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:25,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:25,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:25,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:25,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662909808] [2022-11-23 03:10:25,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662909808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:10:25,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:10:25,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:10:25,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678947072] [2022-11-23 03:10:25,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:10:25,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:10:25,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:10:25,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:10:25,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:10:25,887 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 323 [2022-11-23 03:10:25,889 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 44 transitions, 122 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) [2022-11-23 03:10:25,889 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:10:25,889 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 323 [2022-11-23 03:10:25,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:10:26,452 INFO L130 PetriNetUnfolder]: 2088/3560 cut-off events. [2022-11-23 03:10:26,453 INFO L131 PetriNetUnfolder]: For 526/526 co-relation queries the response was YES. [2022-11-23 03:10:26,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7768 conditions, 3560 events. 2088/3560 cut-off events. For 526/526 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 21514 event pairs, 473 based on Foata normal form. 164/3438 useless extension candidates. Maximal degree in co-relation 6826. Up to 1241 conditions per place. [2022-11-23 03:10:26,472 INFO L137 encePairwiseOnDemand]: 317/323 looper letters, 97 selfloop transitions, 5 changer transitions 13/118 dead transitions. [2022-11-23 03:10:26,472 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 118 transitions, 497 flow [2022-11-23 03:10:26,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:10:26,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-23 03:10:26,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 876 transitions. [2022-11-23 03:10:26,475 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5424148606811146 [2022-11-23 03:10:26,476 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 876 transitions. [2022-11-23 03:10:26,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 876 transitions. [2022-11-23 03:10:26,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:10:26,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 876 transitions. [2022-11-23 03:10:26,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 175.2) internal successors, (876), 5 states have internal predecessors, (876), 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) [2022-11-23 03:10:26,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 323.0) internal successors, (1938), 6 states have internal predecessors, (1938), 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) [2022-11-23 03:10:26,485 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 323.0) internal successors, (1938), 6 states have internal predecessors, (1938), 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) [2022-11-23 03:10:26,485 INFO L175 Difference]: Start difference. First operand has 51 places, 44 transitions, 122 flow. Second operand 5 states and 876 transitions. [2022-11-23 03:10:26,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 118 transitions, 497 flow [2022-11-23 03:10:26,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 118 transitions, 485 flow, removed 1 selfloop flow, removed 4 redundant places. [2022-11-23 03:10:26,494 INFO L231 Difference]: Finished difference. Result has 50 places, 37 transitions, 96 flow [2022-11-23 03:10:26,494 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=96, PETRI_PLACES=50, PETRI_TRANSITIONS=37} [2022-11-23 03:10:26,495 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -3 predicate places. [2022-11-23 03:10:26,495 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 37 transitions, 96 flow [2022-11-23 03:10:26,496 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) [2022-11-23 03:10:26,496 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:10:26,497 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:10:26,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 03:10:26,497 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:10:26,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:26,498 INFO L85 PathProgramCache]: Analyzing trace with hash -755637098, now seen corresponding path program 1 times [2022-11-23 03:10:26,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:26,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046753296] [2022-11-23 03:10:26,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:26,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:26,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:26,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:26,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046753296] [2022-11-23 03:10:26,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046753296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:10:26,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:10:26,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:10:26,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093036765] [2022-11-23 03:10:26,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:10:26,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:10:26,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:10:26,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:10:26,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:10:26,595 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 323 [2022-11-23 03:10:26,596 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 37 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 153.6) internal successors, (768), 5 states have internal predecessors, (768), 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) [2022-11-23 03:10:26,597 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:10:26,597 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 323 [2022-11-23 03:10:26,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:10:26,883 INFO L130 PetriNetUnfolder]: 968/1763 cut-off events. [2022-11-23 03:10:26,883 INFO L131 PetriNetUnfolder]: For 361/361 co-relation queries the response was YES. [2022-11-23 03:10:26,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3617 conditions, 1763 events. 968/1763 cut-off events. For 361/361 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 9328 event pairs, 320 based on Foata normal form. 0/1759 useless extension candidates. Maximal degree in co-relation 3067. Up to 682 conditions per place. [2022-11-23 03:10:26,895 INFO L137 encePairwiseOnDemand]: 319/323 looper letters, 77 selfloop transitions, 3 changer transitions 0/84 dead transitions. [2022-11-23 03:10:26,895 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 84 transitions, 374 flow [2022-11-23 03:10:26,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:10:26,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-23 03:10:26,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 838 transitions. [2022-11-23 03:10:26,898 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5188854489164086 [2022-11-23 03:10:26,898 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 838 transitions. [2022-11-23 03:10:26,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 838 transitions. [2022-11-23 03:10:26,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:10:26,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 838 transitions. [2022-11-23 03:10:26,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 167.6) internal successors, (838), 5 states have internal predecessors, (838), 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) [2022-11-23 03:10:26,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 323.0) internal successors, (1938), 6 states have internal predecessors, (1938), 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) [2022-11-23 03:10:26,907 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 323.0) internal successors, (1938), 6 states have internal predecessors, (1938), 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) [2022-11-23 03:10:26,908 INFO L175 Difference]: Start difference. First operand has 50 places, 37 transitions, 96 flow. Second operand 5 states and 838 transitions. [2022-11-23 03:10:26,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 84 transitions, 374 flow [2022-11-23 03:10:26,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 84 transitions, 352 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-23 03:10:26,911 INFO L231 Difference]: Finished difference. Result has 45 places, 36 transitions, 90 flow [2022-11-23 03:10:26,911 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=90, PETRI_PLACES=45, PETRI_TRANSITIONS=36} [2022-11-23 03:10:26,912 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -8 predicate places. [2022-11-23 03:10:26,912 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 36 transitions, 90 flow [2022-11-23 03:10:26,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 153.6) internal successors, (768), 5 states have internal predecessors, (768), 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) [2022-11-23 03:10:26,913 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:10:26,913 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:10:26,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 03:10:26,914 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:10:26,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:26,914 INFO L85 PathProgramCache]: Analyzing trace with hash -755637113, now seen corresponding path program 1 times [2022-11-23 03:10:26,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:26,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430030491] [2022-11-23 03:10:26,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:26,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:26,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:26,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:26,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430030491] [2022-11-23 03:10:26,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430030491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:10:26,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:10:26,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:10:26,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681158069] [2022-11-23 03:10:26,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:10:26,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:10:26,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:10:26,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:10:26,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:10:27,026 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 323 [2022-11-23 03:10:27,027 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 90 flow. Second operand has 5 states, 5 states have (on average 153.6) internal successors, (768), 5 states have internal predecessors, (768), 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) [2022-11-23 03:10:27,027 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:10:27,027 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 323 [2022-11-23 03:10:27,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:10:27,319 INFO L130 PetriNetUnfolder]: 752/1422 cut-off events. [2022-11-23 03:10:27,319 INFO L131 PetriNetUnfolder]: For 196/196 co-relation queries the response was YES. [2022-11-23 03:10:27,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2992 conditions, 1422 events. 752/1422 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 7320 event pairs, 320 based on Foata normal form. 125/1543 useless extension candidates. Maximal degree in co-relation 2511. Up to 585 conditions per place. [2022-11-23 03:10:27,323 INFO L137 encePairwiseOnDemand]: 319/323 looper letters, 0 selfloop transitions, 0 changer transitions 83/83 dead transitions. [2022-11-23 03:10:27,323 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 83 transitions, 354 flow [2022-11-23 03:10:27,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:10:27,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-23 03:10:27,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 837 transitions. [2022-11-23 03:10:27,326 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.518266253869969 [2022-11-23 03:10:27,326 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 837 transitions. [2022-11-23 03:10:27,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 837 transitions. [2022-11-23 03:10:27,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:10:27,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 837 transitions. [2022-11-23 03:10:27,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 167.4) internal successors, (837), 5 states have internal predecessors, (837), 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) [2022-11-23 03:10:27,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 323.0) internal successors, (1938), 6 states have internal predecessors, (1938), 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) [2022-11-23 03:10:27,333 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 323.0) internal successors, (1938), 6 states have internal predecessors, (1938), 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) [2022-11-23 03:10:27,333 INFO L175 Difference]: Start difference. First operand has 45 places, 36 transitions, 90 flow. Second operand 5 states and 837 transitions. [2022-11-23 03:10:27,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 83 transitions, 354 flow [2022-11-23 03:10:27,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 83 transitions, 349 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-23 03:10:27,335 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2022-11-23 03:10:27,335 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2022-11-23 03:10:27,336 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -8 predicate places. [2022-11-23 03:10:27,336 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2022-11-23 03:10:27,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 153.6) internal successors, (768), 5 states have internal predecessors, (768), 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) [2022-11-23 03:10:27,339 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2022-11-23 03:10:27,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2022-11-23 03:10:27,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-11-23 03:10:27,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-11-23 03:10:27,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 18 remaining) [2022-11-23 03:10:27,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 18 remaining) [2022-11-23 03:10:27,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-11-23 03:10:27,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-11-23 03:10:27,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2022-11-23 03:10:27,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2022-11-23 03:10:27,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-11-23 03:10:27,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-11-23 03:10:27,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-11-23 03:10:27,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-11-23 03:10:27,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-11-23 03:10:27,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-11-23 03:10:27,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-11-23 03:10:27,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-11-23 03:10:27,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 03:10:27,344 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-23 03:10:27,350 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 03:10:27,350 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 03:10:27,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:10:27 BasicIcfg [2022-11-23 03:10:27,354 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 03:10:27,355 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:10:27,355 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:10:27,355 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:10:27,356 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:10:15" (3/4) ... [2022-11-23 03:10:27,358 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 03:10:27,365 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2022-11-23 03:10:27,365 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-23 03:10:27,370 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-23 03:10:27,370 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-23 03:10:27,371 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 03:10:27,371 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 03:10:27,409 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45a6013-e781-4c44-9679-ef45f16f08e6/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 03:10:27,410 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:10:27,410 INFO L158 Benchmark]: Toolchain (without parser) took 13163.31ms. Allocated memory was 146.8MB in the beginning and 255.9MB in the end (delta: 109.1MB). Free memory was 115.3MB in the beginning and 185.4MB in the end (delta: -70.1MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. [2022-11-23 03:10:27,411 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 113.2MB. Free memory was 67.6MB in the beginning and 67.3MB in the end (delta: 241.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:10:27,411 INFO L158 Benchmark]: CACSL2BoogieTranslator took 656.75ms. Allocated memory is still 146.8MB. Free memory was 115.0MB in the beginning and 95.3MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-23 03:10:27,411 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.35ms. Allocated memory is still 146.8MB. Free memory was 95.3MB in the beginning and 93.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:10:27,412 INFO L158 Benchmark]: Boogie Preprocessor took 63.48ms. Allocated memory is still 146.8MB. Free memory was 93.1MB in the beginning and 91.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:10:27,412 INFO L158 Benchmark]: RCFGBuilder took 627.45ms. Allocated memory is still 146.8MB. Free memory was 91.5MB in the beginning and 73.5MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 03:10:27,413 INFO L158 Benchmark]: TraceAbstraction took 11672.08ms. Allocated memory was 146.8MB in the beginning and 255.9MB in the end (delta: 109.1MB). Free memory was 72.6MB in the beginning and 189.6MB in the end (delta: -116.9MB). Peak memory consumption was 118.3MB. Max. memory is 16.1GB. [2022-11-23 03:10:27,413 INFO L158 Benchmark]: Witness Printer took 55.09ms. Allocated memory is still 255.9MB. Free memory was 189.6MB in the beginning and 185.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 03:10:27,415 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 113.2MB. Free memory was 67.6MB in the beginning and 67.3MB in the end (delta: 241.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 656.75ms. Allocated memory is still 146.8MB. Free memory was 115.0MB in the beginning and 95.3MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.35ms. Allocated memory is still 146.8MB. Free memory was 95.3MB in the beginning and 93.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.48ms. Allocated memory is still 146.8MB. Free memory was 93.1MB in the beginning and 91.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 627.45ms. Allocated memory is still 146.8MB. Free memory was 91.5MB in the beginning and 73.5MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11672.08ms. Allocated memory was 146.8MB in the beginning and 255.9MB in the end (delta: 109.1MB). Free memory was 72.6MB in the beginning and 189.6MB in the end (delta: -116.9MB). Peak memory consumption was 118.3MB. Max. memory is 16.1GB. * Witness Printer took 55.09ms. Allocated memory is still 255.9MB. Free memory was 189.6MB in the beginning and 185.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.6s, 162 PlacesBefore, 53 PlacesAfterwards, 159 TransitionsBefore, 50 TransitionsAfterwards, 7748 CoEnabledTransitionPairs, 8 FixpointIterations, 39 TrivialSequentialCompositions, 94 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 0 ChoiceCompositions, 152 TotalNumberOfCompositions, 24374 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8935, independent: 8400, independent conditional: 0, independent unconditional: 8400, dependent: 535, dependent conditional: 0, dependent unconditional: 535, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5316, independent: 5188, independent conditional: 0, independent unconditional: 5188, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5316, independent: 4854, independent conditional: 0, independent unconditional: 4854, dependent: 462, dependent conditional: 0, dependent unconditional: 462, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 462, independent: 334, independent conditional: 0, independent unconditional: 334, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 717, independent: 385, independent conditional: 0, independent unconditional: 385, dependent: 331, dependent conditional: 0, dependent unconditional: 331, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8935, independent: 3212, independent conditional: 0, independent unconditional: 3212, dependent: 407, dependent conditional: 0, dependent unconditional: 407, unknown: 5316, unknown conditional: 0, unknown unconditional: 5316] , Statistics on independence cache: Total cache size (in pairs): 380, Positive cache size: 319, Positive conditional cache size: 0, Positive unconditional cache size: 319, Negative cache size: 61, Negative conditional cache size: 0, Negative unconditional cache size: 61, 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: 11.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 536 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 460 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 50 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1047 IncrementalHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 0 mSDtfsCounter, 1047 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=122occurred in iteration=3, InterpolantAutomatonStates: 26, 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, 0.6s 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! [2022-11-23 03:10:27,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45a6013-e781-4c44-9679-ef45f16f08e6/bin/uautomizer-QkZJyEgLgS/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