./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix015.oepc.i --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_514739d7-4ede-4b9b-8258-d091b14ae9d4/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514739d7-4ede-4b9b-8258-d091b14ae9d4/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_514739d7-4ede-4b9b-8258-d091b14ae9d4/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514739d7-4ede-4b9b-8258-d091b14ae9d4/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix015.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514739d7-4ede-4b9b-8258-d091b14ae9d4/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_514739d7-4ede-4b9b-8258-d091b14ae9d4/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 951d1f5e5395236f7d0da1ed6dd6f4a1398d1a8ad75d935345731aeb4389e0e8 --- 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 02:47:36,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:47:36,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:47:36,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:47:36,058 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:47:36,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:47:36,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:47:36,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:47:36,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:47:36,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:47:36,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:47:36,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:47:36,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:47:36,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:47:36,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:47:36,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:47:36,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:47:36,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:47:36,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:47:36,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:47:36,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:47:36,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:47:36,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:47:36,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:47:36,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:47:36,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:47:36,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:47:36,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:47:36,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:47:36,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:47:36,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:47:36,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:47:36,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:47:36,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:47:36,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:47:36,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:47:36,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:47:36,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:47:36,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:47:36,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:47:36,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:47:36,143 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514739d7-4ede-4b9b-8258-d091b14ae9d4/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-23 02:47:36,188 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:47:36,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:47:36,189 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:47:36,189 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:47:36,190 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:47:36,191 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:47:36,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:47:36,192 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:47:36,192 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:47:36,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:47:36,193 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 02:47:36,194 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 02:47:36,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:47:36,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 02:47:36,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:47:36,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:47:36,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:47:36,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:47:36,195 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 02:47:36,196 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 02:47:36,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:47:36,196 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:47:36,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:47:36,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:47:36,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:47:36,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:47:36,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:47:36,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:47:36,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:47:36,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:47:36,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:47:36,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 02:47:36,199 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:47:36,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:47:36,200 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:47:36,200 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:47:36,200 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_514739d7-4ede-4b9b-8258-d091b14ae9d4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514739d7-4ede-4b9b-8258-d091b14ae9d4/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 951d1f5e5395236f7d0da1ed6dd6f4a1398d1a8ad75d935345731aeb4389e0e8 [2022-11-23 02:47:36,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:47:36,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:47:36,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:47:36,549 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:47:36,549 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:47:36,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514739d7-4ede-4b9b-8258-d091b14ae9d4/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/pthread-wmm/mix015.oepc.i [2022-11-23 02:47:39,712 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:47:39,988 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:47:39,989 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514739d7-4ede-4b9b-8258-d091b14ae9d4/sv-benchmarks/c/pthread-wmm/mix015.oepc.i [2022-11-23 02:47:40,010 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514739d7-4ede-4b9b-8258-d091b14ae9d4/bin/uautomizer-QkZJyEgLgS/data/7a9e1019c/94b347a04e244967b9ba87f18b5d83b5/FLAGb93777f4c [2022-11-23 02:47:40,025 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514739d7-4ede-4b9b-8258-d091b14ae9d4/bin/uautomizer-QkZJyEgLgS/data/7a9e1019c/94b347a04e244967b9ba87f18b5d83b5 [2022-11-23 02:47:40,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:47:40,030 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:47:40,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:47:40,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:47:40,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:47:40,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:47:40" (1/1) ... [2022-11-23 02:47:40,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3118e8f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:40, skipping insertion in model container [2022-11-23 02:47:40,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:47:40" (1/1) ... [2022-11-23 02:47:40,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:47:40,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:47:40,269 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_514739d7-4ede-4b9b-8258-d091b14ae9d4/sv-benchmarks/c/pthread-wmm/mix015.oepc.i[945,958] [2022-11-23 02:47:40,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:47:40,562 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:47:40,582 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_514739d7-4ede-4b9b-8258-d091b14ae9d4/sv-benchmarks/c/pthread-wmm/mix015.oepc.i[945,958] [2022-11-23 02:47:40,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:47:40,729 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:47:40,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:40 WrapperNode [2022-11-23 02:47:40,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:47:40,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:47:40,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:47:40,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:47:40,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:40" (1/1) ... [2022-11-23 02:47:40,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:40" (1/1) ... [2022-11-23 02:47:40,816 INFO L138 Inliner]: procedures = 176, calls = 60, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 140 [2022-11-23 02:47:40,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:47:40,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:47:40,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:47:40,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:47:40,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:40" (1/1) ... [2022-11-23 02:47:40,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:40" (1/1) ... [2022-11-23 02:47:40,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:40" (1/1) ... [2022-11-23 02:47:40,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:40" (1/1) ... [2022-11-23 02:47:40,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:40" (1/1) ... [2022-11-23 02:47:40,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:40" (1/1) ... [2022-11-23 02:47:40,845 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:40" (1/1) ... [2022-11-23 02:47:40,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:40" (1/1) ... [2022-11-23 02:47:40,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:47:40,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:47:40,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:47:40,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:47:40,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:40" (1/1) ... [2022-11-23 02:47:40,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:47:40,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514739d7-4ede-4b9b-8258-d091b14ae9d4/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:47:40,910 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514739d7-4ede-4b9b-8258-d091b14ae9d4/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:47:40,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514739d7-4ede-4b9b-8258-d091b14ae9d4/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:47:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 02:47:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 02:47:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:47:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 02:47:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 02:47:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-23 02:47:40,973 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-23 02:47:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-23 02:47:40,973 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-23 02:47:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-23 02:47:40,973 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-23 02:47:40,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 02:47:40,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 02:47:40,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:47:40,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:47:40,976 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 02:47:41,125 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:47:41,127 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:47:41,587 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:47:41,865 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:47:41,865 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 02:47:41,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:47:41 BoogieIcfgContainer [2022-11-23 02:47:41,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:47:41,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:47:41,875 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:47:41,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:47:41,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:47:40" (1/3) ... [2022-11-23 02:47:41,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c376c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:47:41, skipping insertion in model container [2022-11-23 02:47:41,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:40" (2/3) ... [2022-11-23 02:47:41,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c376c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:47:41, skipping insertion in model container [2022-11-23 02:47:41,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:47:41" (3/3) ... [2022-11-23 02:47:41,884 INFO L112 eAbstractionObserver]: Analyzing ICFG mix015.oepc.i [2022-11-23 02:47:41,895 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 02:47:41,907 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:47:41,908 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-23 02:47:41,909 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 02:47:41,996 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 02:47:42,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 126 transitions, 267 flow [2022-11-23 02:47:42,118 INFO L130 PetriNetUnfolder]: 2/123 cut-off events. [2022-11-23 02:47:42,119 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:47:42,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 123 events. 2/123 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2022-11-23 02:47:42,125 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 126 transitions, 267 flow [2022-11-23 02:47:42,131 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 123 transitions, 255 flow [2022-11-23 02:47:42,135 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 02:47:42,152 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 123 transitions, 255 flow [2022-11-23 02:47:42,155 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 123 transitions, 255 flow [2022-11-23 02:47:42,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 123 transitions, 255 flow [2022-11-23 02:47:42,199 INFO L130 PetriNetUnfolder]: 2/123 cut-off events. [2022-11-23 02:47:42,199 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:47:42,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 123 events. 2/123 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2022-11-23 02:47:42,209 INFO L119 LiptonReduction]: Number of co-enabled transitions 2952 [2022-11-23 02:47:47,969 INFO L134 LiptonReduction]: Checked pairs total: 9881 [2022-11-23 02:47:47,970 INFO L136 LiptonReduction]: Total number of compositions: 110 [2022-11-23 02:47:47,988 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:47:47,995 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;@6945e6ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:47:47,996 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-23 02:47:48,001 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2022-11-23 02:47:48,001 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:47:48,002 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:47:48,003 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 02:47:48,003 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 02:47:48,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:47:48,009 INFO L85 PathProgramCache]: Analyzing trace with hash 521465673, now seen corresponding path program 1 times [2022-11-23 02:47:48,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:47:48,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423241029] [2022-11-23 02:47:48,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:47:48,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:47:48,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:47:48,368 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 02:47:48,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:47:48,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423241029] [2022-11-23 02:47:48,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423241029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:47:48,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:47:48,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 02:47:48,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234529859] [2022-11-23 02:47:48,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:47:48,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:47:48,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:47:48,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:47:48,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:47:48,434 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 236 [2022-11-23 02:47:48,437 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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 02:47:48,437 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:47:48,437 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 236 [2022-11-23 02:47:48,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:47:48,844 INFO L130 PetriNetUnfolder]: 897/1475 cut-off events. [2022-11-23 02:47:48,844 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-23 02:47:48,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3000 conditions, 1475 events. 897/1475 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 7283 event pairs, 395 based on Foata normal form. 48/1214 useless extension candidates. Maximal degree in co-relation 2989. Up to 1283 conditions per place. [2022-11-23 02:47:48,857 INFO L137 encePairwiseOnDemand]: 224/236 looper letters, 37 selfloop transitions, 4 changer transitions 0/43 dead transitions. [2022-11-23 02:47:48,857 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 43 transitions, 183 flow [2022-11-23 02:47:48,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:47:48,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 02:47:48,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 362 transitions. [2022-11-23 02:47:48,872 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5112994350282486 [2022-11-23 02:47:48,873 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 362 transitions. [2022-11-23 02:47:48,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 362 transitions. [2022-11-23 02:47:48,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:47:48,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 362 transitions. [2022-11-23 02:47:48,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 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 02:47:48,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 236.0) internal successors, (944), 4 states have internal predecessors, (944), 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 02:47:48,889 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 236.0) internal successors, (944), 4 states have internal predecessors, (944), 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 02:47:48,891 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 67 flow. Second operand 3 states and 362 transitions. [2022-11-23 02:47:48,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 43 transitions, 183 flow [2022-11-23 02:47:48,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 43 transitions, 178 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-23 02:47:48,898 INFO L231 Difference]: Finished difference. Result has 38 places, 31 transitions, 100 flow [2022-11-23 02:47:48,901 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=38, PETRI_TRANSITIONS=31} [2022-11-23 02:47:48,904 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2022-11-23 02:47:48,905 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 31 transitions, 100 flow [2022-11-23 02:47:48,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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 02:47:48,905 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:47:48,906 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:47:48,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 02:47:48,906 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 02:47:48,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:47:48,907 INFO L85 PathProgramCache]: Analyzing trace with hash -583186620, now seen corresponding path program 1 times [2022-11-23 02:47:48,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:47:48,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741858240] [2022-11-23 02:47:48,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:47:48,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:47:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:47:49,123 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 02:47:49,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:47:49,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741858240] [2022-11-23 02:47:49,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741858240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:47:49,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:47:49,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:47:49,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017815141] [2022-11-23 02:47:49,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:47:49,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 02:47:49,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:47:49,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 02:47:49,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 02:47:49,135 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 236 [2022-11-23 02:47:49,136 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 106.5) internal successors, (426), 4 states have internal predecessors, (426), 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 02:47:49,136 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:47:49,136 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 236 [2022-11-23 02:47:49,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:47:49,415 INFO L130 PetriNetUnfolder]: 667/1105 cut-off events. [2022-11-23 02:47:49,415 INFO L131 PetriNetUnfolder]: For 141/141 co-relation queries the response was YES. [2022-11-23 02:47:49,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2704 conditions, 1105 events. 667/1105 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 4981 event pairs, 245 based on Foata normal form. 128/1100 useless extension candidates. Maximal degree in co-relation 2693. Up to 912 conditions per place. [2022-11-23 02:47:49,424 INFO L137 encePairwiseOnDemand]: 229/236 looper letters, 34 selfloop transitions, 4 changer transitions 0/40 dead transitions. [2022-11-23 02:47:49,424 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 40 transitions, 192 flow [2022-11-23 02:47:49,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 02:47:49,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-23 02:47:49,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 457 transitions. [2022-11-23 02:47:49,427 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4841101694915254 [2022-11-23 02:47:49,427 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 457 transitions. [2022-11-23 02:47:49,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 457 transitions. [2022-11-23 02:47:49,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:47:49,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 457 transitions. [2022-11-23 02:47:49,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 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 02:47:49,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 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 02:47:49,433 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 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 02:47:49,433 INFO L175 Difference]: Start difference. First operand has 38 places, 31 transitions, 100 flow. Second operand 4 states and 457 transitions. [2022-11-23 02:47:49,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 40 transitions, 192 flow [2022-11-23 02:47:49,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 40 transitions, 188 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 02:47:49,435 INFO L231 Difference]: Finished difference. Result has 37 places, 28 transitions, 92 flow [2022-11-23 02:47:49,436 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=92, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2022-11-23 02:47:49,436 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2022-11-23 02:47:49,436 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 92 flow [2022-11-23 02:47:49,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 106.5) internal successors, (426), 4 states have internal predecessors, (426), 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 02:47:49,437 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:47:49,437 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:47:49,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 02:47:49,438 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 02:47:49,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:47:49,438 INFO L85 PathProgramCache]: Analyzing trace with hash -894185882, now seen corresponding path program 1 times [2022-11-23 02:47:49,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:47:49,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758405350] [2022-11-23 02:47:49,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:47:49,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:47:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:47:49,546 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 02:47:49,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:47:49,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758405350] [2022-11-23 02:47:49,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758405350] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:47:49,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:47:49,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:47:49,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399674974] [2022-11-23 02:47:49,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:47:49,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 02:47:49,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:47:49,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 02:47:49,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 02:47:49,560 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 236 [2022-11-23 02:47:49,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 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 02:47:49,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:47:49,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 236 [2022-11-23 02:47:49,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:47:49,755 INFO L130 PetriNetUnfolder]: 248/462 cut-off events. [2022-11-23 02:47:49,755 INFO L131 PetriNetUnfolder]: For 128/128 co-relation queries the response was YES. [2022-11-23 02:47:49,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1144 conditions, 462 events. 248/462 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1829 event pairs, 109 based on Foata normal form. 40/485 useless extension candidates. Maximal degree in co-relation 1132. Up to 178 conditions per place. [2022-11-23 02:47:49,759 INFO L137 encePairwiseOnDemand]: 228/236 looper letters, 41 selfloop transitions, 7 changer transitions 3/53 dead transitions. [2022-11-23 02:47:49,759 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 53 transitions, 256 flow [2022-11-23 02:47:49,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 02:47:49,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-23 02:47:49,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 471 transitions. [2022-11-23 02:47:49,761 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4989406779661017 [2022-11-23 02:47:49,761 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 471 transitions. [2022-11-23 02:47:49,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 471 transitions. [2022-11-23 02:47:49,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:47:49,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 471 transitions. [2022-11-23 02:47:49,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 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 02:47:49,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 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 02:47:49,766 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 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 02:47:49,767 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 92 flow. Second operand 4 states and 471 transitions. [2022-11-23 02:47:49,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 53 transitions, 256 flow [2022-11-23 02:47:49,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 53 transitions, 251 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 02:47:49,769 INFO L231 Difference]: Finished difference. Result has 39 places, 28 transitions, 115 flow [2022-11-23 02:47:49,769 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=115, PETRI_PLACES=39, PETRI_TRANSITIONS=28} [2022-11-23 02:47:49,770 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 1 predicate places. [2022-11-23 02:47:49,770 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 115 flow [2022-11-23 02:47:49,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 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 02:47:49,771 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:47:49,771 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:47:49,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 02:47:49,772 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 02:47:49,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:47:49,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1182158100, now seen corresponding path program 1 times [2022-11-23 02:47:49,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:47:49,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65425515] [2022-11-23 02:47:49,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:47:49,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:47:49,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:47:49,970 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 02:47:49,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:47:49,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65425515] [2022-11-23 02:47:49,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65425515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:47:49,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:47:49,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 02:47:49,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546159736] [2022-11-23 02:47:49,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:47:49,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 02:47:49,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:47:49,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 02:47:49,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-23 02:47:49,990 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 236 [2022-11-23 02:47:49,990 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 115 flow. Second operand has 5 states, 5 states have (on average 107.4) internal successors, (537), 5 states have internal predecessors, (537), 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 02:47:49,991 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:47:49,991 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 236 [2022-11-23 02:47:49,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:47:50,165 INFO L130 PetriNetUnfolder]: 204/369 cut-off events. [2022-11-23 02:47:50,166 INFO L131 PetriNetUnfolder]: For 267/267 co-relation queries the response was YES. [2022-11-23 02:47:50,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1028 conditions, 369 events. 204/369 cut-off events. For 267/267 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1455 event pairs, 97 based on Foata normal form. 14/378 useless extension candidates. Maximal degree in co-relation 1015. Up to 178 conditions per place. [2022-11-23 02:47:50,168 INFO L137 encePairwiseOnDemand]: 228/236 looper letters, 0 selfloop transitions, 0 changer transitions 44/44 dead transitions. [2022-11-23 02:47:50,168 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 44 transitions, 221 flow [2022-11-23 02:47:50,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 02:47:50,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-23 02:47:50,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 566 transitions. [2022-11-23 02:47:50,172 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47966101694915253 [2022-11-23 02:47:50,178 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 566 transitions. [2022-11-23 02:47:50,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 566 transitions. [2022-11-23 02:47:50,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:47:50,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 566 transitions. [2022-11-23 02:47:50,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 113.2) internal successors, (566), 5 states have internal predecessors, (566), 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 02:47:50,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 236.0) internal successors, (1416), 6 states have internal predecessors, (1416), 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 02:47:50,184 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 236.0) internal successors, (1416), 6 states have internal predecessors, (1416), 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 02:47:50,184 INFO L175 Difference]: Start difference. First operand has 39 places, 28 transitions, 115 flow. Second operand 5 states and 566 transitions. [2022-11-23 02:47:50,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 44 transitions, 221 flow [2022-11-23 02:47:50,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 44 transitions, 197 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-11-23 02:47:50,188 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2022-11-23 02:47:50,188 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2022-11-23 02:47:50,190 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, -5 predicate places. [2022-11-23 02:47:50,190 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2022-11-23 02:47:50,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 107.4) internal successors, (537), 5 states have internal predecessors, (537), 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 02:47:50,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-23 02:47:50,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-23 02:47:50,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-23 02:47:50,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-23 02:47:50,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-23 02:47:50,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-23 02:47:50,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-23 02:47:50,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-23 02:47:50,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-23 02:47:50,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-23 02:47:50,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-23 02:47:50,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-23 02:47:50,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-23 02:47:50,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-23 02:47:50,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-23 02:47:50,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 02:47:50,197 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-23 02:47:50,205 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 02:47:50,205 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 02:47:50,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:47:50 BasicIcfg [2022-11-23 02:47:50,215 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 02:47:50,215 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:47:50,215 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:47:50,216 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:47:50,216 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:47:41" (3/4) ... [2022-11-23 02:47:50,219 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 02:47:50,225 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-23 02:47:50,225 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-23 02:47:50,225 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-23 02:47:50,232 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-23 02:47:50,233 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-23 02:47:50,233 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 02:47:50,233 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 02:47:50,294 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514739d7-4ede-4b9b-8258-d091b14ae9d4/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 02:47:50,294 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:47:50,296 INFO L158 Benchmark]: Toolchain (without parser) took 10266.20ms. Allocated memory was 148.9MB in the beginning and 247.5MB in the end (delta: 98.6MB). Free memory was 104.5MB in the beginning and 96.4MB in the end (delta: 8.0MB). Peak memory consumption was 108.5MB. Max. memory is 16.1GB. [2022-11-23 02:47:50,296 INFO L158 Benchmark]: CDTParser took 0.59ms. Allocated memory is still 148.9MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:47:50,297 INFO L158 Benchmark]: CACSL2BoogieTranslator took 699.48ms. Allocated memory is still 148.9MB. Free memory was 104.5MB in the beginning and 80.8MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-23 02:47:50,297 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.83ms. Allocated memory is still 148.9MB. Free memory was 80.8MB in the beginning and 78.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:47:50,297 INFO L158 Benchmark]: Boogie Preprocessor took 33.08ms. Allocated memory is still 148.9MB. Free memory was 78.4MB in the beginning and 76.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:47:50,298 INFO L158 Benchmark]: RCFGBuilder took 1018.49ms. Allocated memory was 148.9MB in the beginning and 205.5MB in the end (delta: 56.6MB). Free memory was 76.3MB in the beginning and 159.8MB in the end (delta: -83.5MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2022-11-23 02:47:50,298 INFO L158 Benchmark]: TraceAbstraction took 8340.55ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 158.5MB in the beginning and 99.6MB in the end (delta: 58.9MB). Peak memory consumption was 99.7MB. Max. memory is 16.1GB. [2022-11-23 02:47:50,299 INFO L158 Benchmark]: Witness Printer took 80.18ms. Allocated memory is still 247.5MB. Free memory was 99.6MB in the beginning and 96.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 02:47:50,301 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59ms. Allocated memory is still 148.9MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 699.48ms. Allocated memory is still 148.9MB. Free memory was 104.5MB in the beginning and 80.8MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.83ms. Allocated memory is still 148.9MB. Free memory was 80.8MB in the beginning and 78.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.08ms. Allocated memory is still 148.9MB. Free memory was 78.4MB in the beginning and 76.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1018.49ms. Allocated memory was 148.9MB in the beginning and 205.5MB in the end (delta: 56.6MB). Free memory was 76.3MB in the beginning and 159.8MB in the end (delta: -83.5MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8340.55ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 158.5MB in the beginning and 99.6MB in the end (delta: 58.9MB). Peak memory consumption was 99.7MB. Max. memory is 16.1GB. * Witness Printer took 80.18ms. Allocated memory is still 247.5MB. Free memory was 99.6MB in the beginning and 96.4MB in the end (delta: 3.2MB). 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: 5.8s, 131 PlacesBefore, 38 PlacesAfterwards, 123 TransitionsBefore, 29 TransitionsAfterwards, 2952 CoEnabledTransitionPairs, 7 FixpointIterations, 45 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 1 ChoiceCompositions, 110 TotalNumberOfCompositions, 9881 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4080, independent: 3798, independent conditional: 0, independent unconditional: 3798, dependent: 282, dependent conditional: 0, dependent unconditional: 282, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2052, independent: 1988, independent conditional: 0, independent unconditional: 1988, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2052, independent: 1926, independent conditional: 0, independent unconditional: 1926, dependent: 126, dependent conditional: 0, dependent unconditional: 126, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 126, independent: 62, independent conditional: 0, independent unconditional: 62, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 506, independent: 108, independent conditional: 0, independent unconditional: 108, dependent: 398, dependent conditional: 0, dependent unconditional: 398, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4080, independent: 1810, independent conditional: 0, independent unconditional: 1810, dependent: 218, dependent conditional: 0, dependent unconditional: 218, unknown: 2052, unknown conditional: 0, unknown unconditional: 2052] , Statistics on independence cache: Total cache size (in pairs): 236, Positive cache size: 209, Positive conditional cache size: 0, Positive unconditional cache size: 209, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 835]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 835]: 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 7 procedures, 161 locations, 15 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: 8.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 135 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 114 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 259 IncrementalHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 7 mSDtfsCounter, 259 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred in iteration=3, InterpolantAutomatonStates: 16, 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, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 129 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 02:47:50,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514739d7-4ede-4b9b-8258-d091b14ae9d4/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE