./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e7ae0f-f8be-405f-8ae9-41ef0ca2528d/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e7ae0f-f8be-405f-8ae9-41ef0ca2528d/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_12e7ae0f-f8be-405f-8ae9-41ef0ca2528d/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e7ae0f-f8be-405f-8ae9-41ef0ca2528d/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e7ae0f-f8be-405f-8ae9-41ef0ca2528d/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_12e7ae0f-f8be-405f-8ae9-41ef0ca2528d/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 54b834084fe1393c06cef2b14fb31f788537bd44a8744d5b4241cffc72e1d744 --- 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 03:11:15,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:11:15,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:11:15,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:11:15,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:11:15,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:11:15,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:11:15,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:11:15,883 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:11:15,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:11:15,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:11:15,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:11:15,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:11:15,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:11:15,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:11:15,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:11:15,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:11:15,902 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:11:15,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:11:15,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:11:15,911 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:11:15,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:11:15,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:11:15,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:11:15,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:11:15,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:11:15,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:11:15,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:11:15,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:11:15,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:11:15,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:11:15,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:11:15,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:11:15,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:11:15,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:11:15,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:11:15,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:11:15,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:11:15,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:11:15,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:11:15,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:11:15,947 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e7ae0f-f8be-405f-8ae9-41ef0ca2528d/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-23 03:11:15,988 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:11:15,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:11:15,988 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:11:15,988 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:11:15,989 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:11:15,989 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:11:15,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:11:15,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:11:15,990 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:11:15,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:11:15,991 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:11:15,991 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:11:15,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:11:15,991 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:11:15,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:11:15,992 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:11:15,992 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:11:15,992 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:11:15,992 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:11:15,992 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:11:15,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:11:15,993 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:11:15,993 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:11:15,993 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:11:15,993 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:11:15,993 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:11:15,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:11:15,994 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:11:15,994 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:11:15,994 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:11:15,994 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:11:15,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:11:15,995 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:11:15,995 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:11:15,995 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:11:15,995 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:11:15,995 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_12e7ae0f-f8be-405f-8ae9-41ef0ca2528d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e7ae0f-f8be-405f-8ae9-41ef0ca2528d/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54b834084fe1393c06cef2b14fb31f788537bd44a8744d5b4241cffc72e1d744 [2022-11-23 03:11:16,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:11:16,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:11:16,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:11:16,275 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:11:16,275 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:11:16,276 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e7ae0f-f8be-405f-8ae9-41ef0ca2528d/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2022-11-23 03:11:19,357 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:11:19,574 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:11:19,574 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e7ae0f-f8be-405f-8ae9-41ef0ca2528d/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2022-11-23 03:11:19,584 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e7ae0f-f8be-405f-8ae9-41ef0ca2528d/bin/uautomizer-QkZJyEgLgS/data/b03a3ea7d/b07178e1fe9b433eba2c6d3eeba5339e/FLAGb980a0433 [2022-11-23 03:11:19,607 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e7ae0f-f8be-405f-8ae9-41ef0ca2528d/bin/uautomizer-QkZJyEgLgS/data/b03a3ea7d/b07178e1fe9b433eba2c6d3eeba5339e [2022-11-23 03:11:19,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:11:19,613 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:11:19,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:11:19,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:11:19,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:11:19,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:11:19" (1/1) ... [2022-11-23 03:11:19,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@128d277a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:19, skipping insertion in model container [2022-11-23 03:11:19,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:11:19" (1/1) ... [2022-11-23 03:11:19,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:11:19,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:11:19,940 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_12e7ae0f-f8be-405f-8ae9-41ef0ca2528d/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c[3642,3655] [2022-11-23 03:11:19,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:11:19,973 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:11:20,024 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_12e7ae0f-f8be-405f-8ae9-41ef0ca2528d/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c[3642,3655] [2022-11-23 03:11:20,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:11:20,055 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:11:20,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20 WrapperNode [2022-11-23 03:11:20,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:11:20,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:11:20,057 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:11:20,057 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:11:20,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20" (1/1) ... [2022-11-23 03:11:20,086 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20" (1/1) ... [2022-11-23 03:11:20,137 INFO L138 Inliner]: procedures = 27, calls = 68, calls flagged for inlining = 18, calls inlined = 24, statements flattened = 365 [2022-11-23 03:11:20,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:11:20,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:11:20,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:11:20,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:11:20,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20" (1/1) ... [2022-11-23 03:11:20,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20" (1/1) ... [2022-11-23 03:11:20,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20" (1/1) ... [2022-11-23 03:11:20,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20" (1/1) ... [2022-11-23 03:11:20,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20" (1/1) ... [2022-11-23 03:11:20,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20" (1/1) ... [2022-11-23 03:11:20,205 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20" (1/1) ... [2022-11-23 03:11:20,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20" (1/1) ... [2022-11-23 03:11:20,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:11:20,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:11:20,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:11:20,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:11:20,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20" (1/1) ... [2022-11-23 03:11:20,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:11:20,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e7ae0f-f8be-405f-8ae9-41ef0ca2528d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:11:20,257 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e7ae0f-f8be-405f-8ae9-41ef0ca2528d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:11:20,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e7ae0f-f8be-405f-8ae9-41ef0ca2528d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:11:20,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:11:20,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:11:20,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 03:11:20,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 03:11:20,310 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-23 03:11:20,310 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-23 03:11:20,310 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-23 03:11:20,311 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-23 03:11:20,311 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-23 03:11:20,311 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-23 03:11:20,311 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-23 03:11:20,311 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-23 03:11:20,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:11:20,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 03:11:20,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 03:11:20,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 03:11:20,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:11:20,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:11:20,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:11:20,315 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 03:11:20,444 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:11:20,446 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:11:21,193 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:11:21,783 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:11:21,783 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-23 03:11:21,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:11:21 BoogieIcfgContainer [2022-11-23 03:11:21,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:11:21,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:11:21,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:11:21,794 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:11:21,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:11:19" (1/3) ... [2022-11-23 03:11:21,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e8db472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:11:21, skipping insertion in model container [2022-11-23 03:11:21,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20" (2/3) ... [2022-11-23 03:11:21,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e8db472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:11:21, skipping insertion in model container [2022-11-23 03:11:21,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:11:21" (3/3) ... [2022-11-23 03:11:21,804 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1.wvr.c [2022-11-23 03:11:21,815 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 03:11:21,827 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:11:21,828 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2022-11-23 03:11:21,828 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 03:11:22,074 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-23 03:11:22,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 243 places, 245 transitions, 522 flow [2022-11-23 03:11:22,285 INFO L130 PetriNetUnfolder]: 15/241 cut-off events. [2022-11-23 03:11:22,285 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-23 03:11:22,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 241 events. 15/241 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 259 event pairs, 0 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 194. Up to 2 conditions per place. [2022-11-23 03:11:22,295 INFO L82 GeneralOperation]: Start removeDead. Operand has 243 places, 245 transitions, 522 flow [2022-11-23 03:11:22,303 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 217 places, 218 transitions, 457 flow [2022-11-23 03:11:22,307 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 03:11:22,330 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 217 places, 218 transitions, 457 flow [2022-11-23 03:11:22,335 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 217 places, 218 transitions, 457 flow [2022-11-23 03:11:22,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 217 places, 218 transitions, 457 flow [2022-11-23 03:11:22,454 INFO L130 PetriNetUnfolder]: 14/218 cut-off events. [2022-11-23 03:11:22,455 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-23 03:11:22,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 218 events. 14/218 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 256 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 194. Up to 2 conditions per place. [2022-11-23 03:11:22,464 INFO L119 LiptonReduction]: Number of co-enabled transitions 5712 [2022-11-23 03:11:44,812 INFO L134 LiptonReduction]: Checked pairs total: 17792 [2022-11-23 03:11:44,812 INFO L136 LiptonReduction]: Total number of compositions: 235 [2022-11-23 03:11:44,830 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:11:44,836 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;@11406c74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:11:44,837 INFO L358 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2022-11-23 03:11:44,839 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-23 03:11:44,839 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:11:44,839 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:11:44,840 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-23 03:11:44,840 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-11-23 03:11:44,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:11:44,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1535, now seen corresponding path program 1 times [2022-11-23 03:11:44,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:11:44,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753910869] [2022-11-23 03:11:44,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:11:44,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:11:44,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:11:45,009 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 03:11:45,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:11:45,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753910869] [2022-11-23 03:11:45,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753910869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:11:45,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:11:45,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-23 03:11:45,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299762407] [2022-11-23 03:11:45,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:11:45,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 03:11:45,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:11:45,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 03:11:45,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 03:11:45,068 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 480 [2022-11-23 03:11:45,074 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 65 transitions, 151 flow. Second operand has 2 states, 2 states have (on average 186.5) internal successors, (373), 2 states have internal predecessors, (373), 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 03:11:45,074 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:11:45,074 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 480 [2022-11-23 03:11:45,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:11:55,762 INFO L130 PetriNetUnfolder]: 55361/71763 cut-off events. [2022-11-23 03:11:55,762 INFO L131 PetriNetUnfolder]: For 1331/1331 co-relation queries the response was YES. [2022-11-23 03:11:55,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145991 conditions, 71763 events. 55361/71763 cut-off events. For 1331/1331 co-relation queries the response was YES. Maximal size of possible extension queue 4599. Compared 399767 event pairs, 48480 based on Foata normal form. 0/23600 useless extension candidates. Maximal degree in co-relation 132444. Up to 71764 conditions per place. [2022-11-23 03:11:56,245 INFO L137 encePairwiseOnDemand]: 470/480 looper letters, 55 selfloop transitions, 0 changer transitions 0/55 dead transitions. [2022-11-23 03:11:56,246 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 55 transitions, 241 flow [2022-11-23 03:11:56,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 03:11:56,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-23 03:11:56,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 437 transitions. [2022-11-23 03:11:56,268 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4552083333333333 [2022-11-23 03:11:56,269 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 437 transitions. [2022-11-23 03:11:56,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 437 transitions. [2022-11-23 03:11:56,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:11:56,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 437 transitions. [2022-11-23 03:11:56,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 218.5) internal successors, (437), 2 states have internal predecessors, (437), 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 03:11:56,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 480.0) internal successors, (1440), 3 states have internal predecessors, (1440), 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 03:11:56,293 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 480.0) internal successors, (1440), 3 states have internal predecessors, (1440), 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 03:11:56,295 INFO L175 Difference]: Start difference. First operand has 73 places, 65 transitions, 151 flow. Second operand 2 states and 437 transitions. [2022-11-23 03:11:56,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 55 transitions, 241 flow [2022-11-23 03:11:57,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 55 transitions, 228 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-23 03:11:57,356 INFO L231 Difference]: Finished difference. Result has 57 places, 55 transitions, 118 flow [2022-11-23 03:11:57,358 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=480, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=118, PETRI_PLACES=57, PETRI_TRANSITIONS=55} [2022-11-23 03:11:57,362 INFO L288 CegarLoopForPetriNet]: 73 programPoint places, -16 predicate places. [2022-11-23 03:11:57,362 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 55 transitions, 118 flow [2022-11-23 03:11:57,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 186.5) internal successors, (373), 2 states have internal predecessors, (373), 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 03:11:57,363 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:11:57,364 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-23 03:11:57,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:11:57,364 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-11-23 03:11:57,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:11:57,365 INFO L85 PathProgramCache]: Analyzing trace with hash 49102, now seen corresponding path program 1 times [2022-11-23 03:11:57,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:11:57,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154598853] [2022-11-23 03:11:57,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:11:57,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:11:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:11:57,668 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 03:11:57,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:11:57,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154598853] [2022-11-23 03:11:57,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154598853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:11:57,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:11:57,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:11:57,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982616653] [2022-11-23 03:11:57,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:11:57,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:11:57,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:11:57,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:11:57,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:11:57,686 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 480 [2022-11-23 03:11:57,687 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 55 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 183.66666666666666) internal successors, (551), 3 states have internal predecessors, (551), 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 03:11:57,688 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:11:57,688 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 480 [2022-11-23 03:11:57,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:12:14,717 INFO L130 PetriNetUnfolder]: 110721/143523 cut-off events. [2022-11-23 03:12:14,717 INFO L131 PetriNetUnfolder]: For 324/324 co-relation queries the response was YES. [2022-11-23 03:12:14,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290147 conditions, 143523 events. 110721/143523 cut-off events. For 324/324 co-relation queries the response was YES. Maximal size of possible extension queue 8939. Compared 867908 event pairs, 96960 based on Foata normal form. 0/47199 useless extension candidates. Maximal degree in co-relation 290144. Up to 71764 conditions per place. [2022-11-23 03:12:15,399 INFO L137 encePairwiseOnDemand]: 476/480 looper letters, 105 selfloop transitions, 2 changer transitions 0/107 dead transitions. [2022-11-23 03:12:15,399 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 107 transitions, 444 flow [2022-11-23 03:12:15,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:12:15,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:12:15,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 658 transitions. [2022-11-23 03:12:15,402 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45694444444444443 [2022-11-23 03:12:15,403 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 658 transitions. [2022-11-23 03:12:15,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 658 transitions. [2022-11-23 03:12:15,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:12:15,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 658 transitions. [2022-11-23 03:12:15,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 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 03:12:15,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 480.0) internal successors, (1920), 4 states have internal predecessors, (1920), 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 03:12:15,411 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 480.0) internal successors, (1920), 4 states have internal predecessors, (1920), 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 03:12:15,411 INFO L175 Difference]: Start difference. First operand has 57 places, 55 transitions, 118 flow. Second operand 3 states and 658 transitions. [2022-11-23 03:12:15,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 107 transitions, 444 flow [2022-11-23 03:12:15,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 107 transitions, 444 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 03:12:15,414 INFO L231 Difference]: Finished difference. Result has 60 places, 56 transitions, 132 flow [2022-11-23 03:12:15,415 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=480, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=60, PETRI_TRANSITIONS=56} [2022-11-23 03:12:15,416 INFO L288 CegarLoopForPetriNet]: 73 programPoint places, -13 predicate places. [2022-11-23 03:12:15,416 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 56 transitions, 132 flow [2022-11-23 03:12:15,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.66666666666666) internal successors, (551), 3 states have internal predecessors, (551), 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 03:12:15,417 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:12:15,417 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-23 03:12:15,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:12:15,418 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-11-23 03:12:15,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:12:15,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1523679, now seen corresponding path program 1 times [2022-11-23 03:12:15,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:12:15,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308535278] [2022-11-23 03:12:15,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:12:15,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:12:15,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:12:15,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:12:15,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:12:15,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308535278] [2022-11-23 03:12:15,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308535278] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:12:15,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469649143] [2022-11-23 03:12:15,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:12:15,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:12:15,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e7ae0f-f8be-405f-8ae9-41ef0ca2528d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:12:15,523 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e7ae0f-f8be-405f-8ae9-41ef0ca2528d/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:12:15,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e7ae0f-f8be-405f-8ae9-41ef0ca2528d/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 03:12:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:12:15,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:12:15,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:12:15,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:12:15,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:12:15,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:12:15,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469649143] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:12:15,842 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:12:15,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-11-23 03:12:15,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178438712] [2022-11-23 03:12:15,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:12:15,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:12:15,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:12:15,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:12:15,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:12:15,902 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 480 [2022-11-23 03:12:15,905 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 56 transitions, 132 flow. Second operand has 7 states, 7 states have (on average 184.14285714285714) internal successors, (1289), 7 states have internal predecessors, (1289), 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 03:12:15,905 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:12:15,905 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 480 [2022-11-23 03:12:15,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand