./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc1ea8-d9df-45f7-941f-47f870c2f336/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc1ea8-d9df-45f7-941f-47f870c2f336/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc1ea8-d9df-45f7-941f-47f870c2f336/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc1ea8-d9df-45f7-941f-47f870c2f336/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc1ea8-d9df-45f7-941f-47f870c2f336/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc1ea8-d9df-45f7-941f-47f870c2f336/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cec155e54548239c459fec40910e358deb5fad2ceffa658bfdeefddd1bc9e166 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 19:40:33,271 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:40:33,273 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:40:33,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:40:33,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:40:33,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:40:33,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:40:33,288 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:40:33,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:40:33,289 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:40:33,290 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:40:33,291 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:40:33,291 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:40:33,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:40:33,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:40:33,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:40:33,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:40:33,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:40:33,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:40:33,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:40:33,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:40:33,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:40:33,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:40:33,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:40:33,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:40:33,301 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:40:33,302 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:40:33,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:40:33,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:40:33,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:40:33,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:40:33,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:40:33,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:40:33,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:40:33,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:40:33,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:40:33,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:40:33,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:40:33,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:40:33,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:40:33,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:40:33,308 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc1ea8-d9df-45f7-941f-47f870c2f336/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 19:40:33,321 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:40:33,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:40:33,322 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:40:33,322 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:40:33,322 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:40:33,322 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:40:33,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:40:33,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:40:33,323 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:40:33,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:40:33,323 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:40:33,323 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:40:33,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:40:33,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:40:33,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:40:33,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 19:40:33,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:40:33,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 19:40:33,324 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 19:40:33,324 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:40:33,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:40:33,324 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:40:33,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 19:40:33,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:40:33,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:40:33,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:40:33,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:40:33,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:40:33,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:40:33,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 19:40:33,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:40:33,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 19:40:33,325 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:40:33,325 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 19:40:33,325 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:40:33,325 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:40:33,326 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:40:33,326 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_12dc1ea8-d9df-45f7-941f-47f870c2f336/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc1ea8-d9df-45f7-941f-47f870c2f336/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cec155e54548239c459fec40910e358deb5fad2ceffa658bfdeefddd1bc9e166 [2022-12-13 19:40:33,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:40:33,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:40:33,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:40:33,505 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:40:33,505 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:40:33,506 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc1ea8-d9df-45f7-941f-47f870c2f336/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i [2022-12-13 19:40:36,078 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:40:36,277 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:40:36,278 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc1ea8-d9df-45f7-941f-47f870c2f336/sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i [2022-12-13 19:40:36,286 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc1ea8-d9df-45f7-941f-47f870c2f336/bin/uautomizer-uyxdKDjOR8/data/af0fd25bb/70a681dc50844002971b7ff2ae9d582f/FLAG7bfb14f1d [2022-12-13 19:40:36,635 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc1ea8-d9df-45f7-941f-47f870c2f336/bin/uautomizer-uyxdKDjOR8/data/af0fd25bb/70a681dc50844002971b7ff2ae9d582f [2022-12-13 19:40:36,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:40:36,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:40:36,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:40:36,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:40:36,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:40:36,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:40:36" (1/1) ... [2022-12-13 19:40:36,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79618cc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:40:36, skipping insertion in model container [2022-12-13 19:40:36,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:40:36" (1/1) ... [2022-12-13 19:40:36,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:40:36,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:40:36,781 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_12dc1ea8-d9df-45f7-941f-47f870c2f336/sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i[1092,1105] [2022-12-13 19:40:36,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:40:36,921 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:40:36,932 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_12dc1ea8-d9df-45f7-941f-47f870c2f336/sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i[1092,1105] [2022-12-13 19:40:36,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:40:37,003 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:40:37,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:40:37 WrapperNode [2022-12-13 19:40:37,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:40:37,005 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:40:37,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:40:37,005 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:40:37,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:40:37" (1/1) ... [2022-12-13 19:40:37,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:40:37" (1/1) ... [2022-12-13 19:40:37,043 INFO L138 Inliner]: procedures = 165, calls = 45, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-12-13 19:40:37,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:40:37,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:40:37,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:40:37,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:40:37,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:40:37" (1/1) ... [2022-12-13 19:40:37,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:40:37" (1/1) ... [2022-12-13 19:40:37,053 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:40:37" (1/1) ... [2022-12-13 19:40:37,053 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:40:37" (1/1) ... [2022-12-13 19:40:37,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:40:37" (1/1) ... [2022-12-13 19:40:37,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:40:37" (1/1) ... [2022-12-13 19:40:37,059 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:40:37" (1/1) ... [2022-12-13 19:40:37,060 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:40:37" (1/1) ... [2022-12-13 19:40:37,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:40:37,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:40:37,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:40:37,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:40:37,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:40:37" (1/1) ... [2022-12-13 19:40:37,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:40:37,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc1ea8-d9df-45f7-941f-47f870c2f336/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:40:37,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc1ea8-d9df-45f7-941f-47f870c2f336/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:40:37,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc1ea8-d9df-45f7-941f-47f870c2f336/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:40:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-12-13 19:40:37,110 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-12-13 19:40:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 19:40:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 19:40:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:40:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 19:40:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2022-12-13 19:40:37,111 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2022-12-13 19:40:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 19:40:37,111 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 19:40:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 19:40:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 19:40:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:40:37,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:40:37,112 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 19:40:37,210 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:40:37,213 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:40:37,417 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:40:37,424 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:40:37,424 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 19:40:37,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:40:37 BoogieIcfgContainer [2022-12-13 19:40:37,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:40:37,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:40:37,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:40:37,432 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:40:37,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:40:36" (1/3) ... [2022-12-13 19:40:37,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5def9adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:40:37, skipping insertion in model container [2022-12-13 19:40:37,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:40:37" (2/3) ... [2022-12-13 19:40:37,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5def9adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:40:37, skipping insertion in model container [2022-12-13 19:40:37,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:40:37" (3/3) ... [2022-12-13 19:40:37,435 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_21-traces-cluster-based_true.i [2022-12-13 19:40:37,443 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 19:40:37,451 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:40:37,452 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 19:40:37,452 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 19:40:37,502 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 19:40:37,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 172 places, 167 transitions, 349 flow [2022-12-13 19:40:37,592 INFO L130 PetriNetUnfolder]: 5/164 cut-off events. [2022-12-13 19:40:37,592 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:40:37,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 164 events. 5/164 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 255 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 127. Up to 2 conditions per place. [2022-12-13 19:40:37,599 INFO L82 GeneralOperation]: Start removeDead. Operand has 172 places, 167 transitions, 349 flow [2022-12-13 19:40:37,603 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 169 places, 164 transitions, 337 flow [2022-12-13 19:40:37,606 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 19:40:37,616 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 169 places, 164 transitions, 337 flow [2022-12-13 19:40:37,618 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 169 places, 164 transitions, 337 flow [2022-12-13 19:40:37,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 169 places, 164 transitions, 337 flow [2022-12-13 19:40:37,646 INFO L130 PetriNetUnfolder]: 5/164 cut-off events. [2022-12-13 19:40:37,646 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:40:37,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 164 events. 5/164 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 255 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 127. Up to 2 conditions per place. [2022-12-13 19:40:37,650 INFO L119 LiptonReduction]: Number of co-enabled transitions 9948 [2022-12-13 19:40:41,432 INFO L134 LiptonReduction]: Checked pairs total: 19730 [2022-12-13 19:40:41,433 INFO L136 LiptonReduction]: Total number of compositions: 149 [2022-12-13 19:40:41,443 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:40:41,447 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;@5fdeee4a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:40:41,447 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-13 19:40:41,450 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-12-13 19:40:41,450 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:40:41,450 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:40:41,451 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 19:40:41,451 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2022-12-13 19:40:41,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:40:41,454 INFO L85 PathProgramCache]: Analyzing trace with hash 578554561, now seen corresponding path program 1 times [2022-12-13 19:40:41,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:40:41,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067510261] [2022-12-13 19:40:41,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:40:41,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:40:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:40:41,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:40:41,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:40:41,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067510261] [2022-12-13 19:40:41,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067510261] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:40:41,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:40:41,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:40:41,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253075028] [2022-12-13 19:40:41,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:40:41,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:40:41,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:40:41,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:40:41,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:40:41,677 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 316 [2022-12-13 19:40:41,679 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:40:41,679 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:40:41,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 316 [2022-12-13 19:40:41,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:40:41,909 INFO L130 PetriNetUnfolder]: 1422/2203 cut-off events. [2022-12-13 19:40:41,909 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-12-13 19:40:41,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4333 conditions, 2203 events. 1422/2203 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 11954 event pairs, 630 based on Foata normal form. 84/1983 useless extension candidates. Maximal degree in co-relation 4322. Up to 1862 conditions per place. [2022-12-13 19:40:41,916 INFO L137 encePairwiseOnDemand]: 312/316 looper letters, 33 selfloop transitions, 1 changer transitions 8/50 dead transitions. [2022-12-13 19:40:41,916 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 50 transitions, 193 flow [2022-12-13 19:40:41,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:40:41,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:40:41,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 498 transitions. [2022-12-13 19:40:41,931 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5253164556962026 [2022-12-13 19:40:41,931 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 498 transitions. [2022-12-13 19:40:41,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 498 transitions. [2022-12-13 19:40:41,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:40:41,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 498 transitions. [2022-12-13 19:40:41,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:40:41,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 316.0) internal successors, (1264), 4 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:40:41,945 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 316.0) internal successors, (1264), 4 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:40:41,946 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 83 flow. Second operand 3 states and 498 transitions. [2022-12-13 19:40:41,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 50 transitions, 193 flow [2022-12-13 19:40:41,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 50 transitions, 188 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 19:40:41,950 INFO L231 Difference]: Finished difference. Result has 43 places, 27 transitions, 62 flow [2022-12-13 19:40:41,951 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=316, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=43, PETRI_TRANSITIONS=27} [2022-12-13 19:40:41,955 INFO L288 CegarLoopForPetriNet]: 45 programPoint places, -2 predicate places. [2022-12-13 19:40:41,955 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 27 transitions, 62 flow [2022-12-13 19:40:41,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:40:41,955 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:40:41,955 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 19:40:41,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 19:40:41,956 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2022-12-13 19:40:41,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:40:41,956 INFO L85 PathProgramCache]: Analyzing trace with hash 578554560, now seen corresponding path program 1 times [2022-12-13 19:40:41,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:40:41,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782898575] [2022-12-13 19:40:41,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:40:41,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:40:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:40:42,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:40:42,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:40:42,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782898575] [2022-12-13 19:40:42,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782898575] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:40:42,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:40:42,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:40:42,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521865833] [2022-12-13 19:40:42,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:40:42,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:40:42,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:40:42,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:40:42,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:40:42,032 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 316 [2022-12-13 19:40:42,033 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 27 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 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) [2022-12-13 19:40:42,034 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:40:42,034 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 316 [2022-12-13 19:40:42,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:40:42,127 INFO L130 PetriNetUnfolder]: 315/644 cut-off events. [2022-12-13 19:40:42,128 INFO L131 PetriNetUnfolder]: For 91/91 co-relation queries the response was YES. [2022-12-13 19:40:42,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1257 conditions, 644 events. 315/644 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3684 event pairs, 112 based on Foata normal form. 92/690 useless extension candidates. Maximal degree in co-relation 1248. Up to 295 conditions per place. [2022-12-13 19:40:42,130 INFO L137 encePairwiseOnDemand]: 314/316 looper letters, 0 selfloop transitions, 0 changer transitions 41/41 dead transitions. [2022-12-13 19:40:42,131 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 41 transitions, 160 flow [2022-12-13 19:40:42,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:40:42,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:40:42,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 487 transitions. [2022-12-13 19:40:42,133 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5137130801687764 [2022-12-13 19:40:42,133 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 487 transitions. [2022-12-13 19:40:42,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 487 transitions. [2022-12-13 19:40:42,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:40:42,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 487 transitions. [2022-12-13 19:40:42,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:40:42,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 316.0) internal successors, (1264), 4 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:40:42,136 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 316.0) internal successors, (1264), 4 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:40:42,136 INFO L175 Difference]: Start difference. First operand has 43 places, 27 transitions, 62 flow. Second operand 3 states and 487 transitions. [2022-12-13 19:40:42,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 41 transitions, 160 flow [2022-12-13 19:40:42,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 41 transitions, 159 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 19:40:42,137 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2022-12-13 19:40:42,137 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=316, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2022-12-13 19:40:42,138 INFO L288 CegarLoopForPetriNet]: 45 programPoint places, -9 predicate places. [2022-12-13 19:40:42,138 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2022-12-13 19:40:42,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 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) [2022-12-13 19:40:42,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-12-13 19:40:42,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 7 remaining) [2022-12-13 19:40:42,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-12-13 19:40:42,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2022-12-13 19:40:42,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2022-12-13 19:40:42,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-12-13 19:40:42,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-12-13 19:40:42,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 19:40:42,141 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 19:40:42,145 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 19:40:42,145 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:40:42,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:40:42 BasicIcfg [2022-12-13 19:40:42,148 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:40:42,149 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:40:42,149 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:40:42,149 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:40:42,149 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:40:37" (3/4) ... [2022-12-13 19:40:42,151 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 19:40:42,156 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2022-12-13 19:40:42,156 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t3_fun [2022-12-13 19:40:42,156 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-13 19:40:42,159 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-12-13 19:40:42,159 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 19:40:42,159 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 19:40:42,159 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 19:40:42,186 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc1ea8-d9df-45f7-941f-47f870c2f336/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 19:40:42,186 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:40:42,186 INFO L158 Benchmark]: Toolchain (without parser) took 5548.26ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 109.5MB in the beginning and 67.9MB in the end (delta: 41.6MB). Peak memory consumption was 73.7MB. Max. memory is 16.1GB. [2022-12-13 19:40:42,187 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 144.7MB. Free memory was 109.3MB in the beginning and 109.2MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:40:42,187 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.76ms. Allocated memory is still 144.7MB. Free memory was 109.1MB in the beginning and 89.6MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 19:40:42,187 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.69ms. Allocated memory is still 144.7MB. Free memory was 89.6MB in the beginning and 86.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:40:42,188 INFO L158 Benchmark]: Boogie Preprocessor took 17.76ms. Allocated memory is still 144.7MB. Free memory was 86.7MB in the beginning and 85.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:40:42,188 INFO L158 Benchmark]: RCFGBuilder took 364.00ms. Allocated memory is still 144.7MB. Free memory was 85.4MB in the beginning and 67.9MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 19:40:42,188 INFO L158 Benchmark]: TraceAbstraction took 4719.74ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 67.3MB in the beginning and 71.1MB in the end (delta: -3.8MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2022-12-13 19:40:42,188 INFO L158 Benchmark]: Witness Printer took 37.47ms. Allocated memory is still 174.1MB. Free memory was 71.1MB in the beginning and 67.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 19:40:42,190 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 144.7MB. Free memory was 109.3MB in the beginning and 109.2MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.76ms. Allocated memory is still 144.7MB. Free memory was 109.1MB in the beginning and 89.6MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.69ms. Allocated memory is still 144.7MB. Free memory was 89.6MB in the beginning and 86.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.76ms. Allocated memory is still 144.7MB. Free memory was 86.7MB in the beginning and 85.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 364.00ms. Allocated memory is still 144.7MB. Free memory was 85.4MB in the beginning and 67.9MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4719.74ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 67.3MB in the beginning and 71.1MB in the end (delta: -3.8MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. * Witness Printer took 37.47ms. Allocated memory is still 174.1MB. Free memory was 71.1MB in the beginning and 67.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 169 PlacesBefore, 45 PlacesAfterwards, 164 TransitionsBefore, 37 TransitionsAfterwards, 9948 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 89 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 3 ChoiceCompositions, 149 TotalNumberOfCompositions, 19730 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8911, independent: 8544, independent conditional: 0, independent unconditional: 8544, dependent: 367, dependent conditional: 0, dependent unconditional: 367, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5508, independent: 5427, independent conditional: 0, independent unconditional: 5427, dependent: 81, dependent conditional: 0, dependent unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8911, independent: 3117, independent conditional: 0, independent unconditional: 3117, dependent: 286, dependent conditional: 0, dependent unconditional: 286, unknown: 5508, unknown conditional: 0, unknown unconditional: 5508] , Statistics on independence cache: Total cache size (in pairs): 195, Positive cache size: 160, Positive conditional cache size: 0, Positive unconditional cache size: 160, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 692]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 692]: 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, 239 locations, 7 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: 4.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 80 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 131 IncrementalHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 0 mSDtfsCounter, 131 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 19:40:42,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc1ea8-d9df-45f7-941f-47f870c2f336/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE