./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_35-traces-ex-2_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3bec48-083d-4f7b-985a-a8465fb49556/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3bec48-083d-4f7b-985a-a8465fb49556/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_ec3bec48-083d-4f7b-985a-a8465fb49556/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3bec48-083d-4f7b-985a-a8465fb49556/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_35-traces-ex-2_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3bec48-083d-4f7b-985a-a8465fb49556/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3bec48-083d-4f7b-985a-a8465fb49556/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d0c43dd41f99fbfade8285f6054d50d854da6853e7f72e8b1866aad54c9c5c4 --- 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 19:34:16,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:34:16,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:34:16,180 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:34:16,180 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:34:16,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:34:16,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:34:16,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:34:16,185 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:34:16,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:34:16,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:34:16,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:34:16,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:34:16,189 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:34:16,190 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:34:16,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:34:16,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:34:16,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:34:16,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:34:16,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:34:16,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:34:16,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:34:16,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:34:16,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:34:16,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:34:16,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:34:16,203 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:34:16,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:34:16,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:34:16,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:34:16,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:34:16,206 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:34:16,207 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:34:16,208 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:34:16,209 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:34:16,209 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:34:16,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:34:16,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:34:16,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:34:16,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:34:16,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:34:16,212 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3bec48-083d-4f7b-985a-a8465fb49556/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 19:34:16,230 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:34:16,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:34:16,236 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:34:16,236 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:34:16,237 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:34:16,237 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:34:16,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:34:16,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:34:16,238 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:34:16,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:34:16,238 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:34:16,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:34:16,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:34:16,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:34:16,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 19:34:16,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:34:16,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 19:34:16,239 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:34:16,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:34:16,240 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:34:16,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 19:34:16,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:34:16,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:34:16,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:34:16,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:34:16,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:34:16,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:34:16,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 19:34:16,241 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:34:16,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 19:34:16,242 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:34:16,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 19:34:16,242 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:34:16,242 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:34:16,242 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:34:16,242 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_ec3bec48-083d-4f7b-985a-a8465fb49556/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3bec48-083d-4f7b-985a-a8465fb49556/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d0c43dd41f99fbfade8285f6054d50d854da6853e7f72e8b1866aad54c9c5c4 [2022-12-13 19:34:16,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:34:16,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:34:16,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:34:16,438 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:34:16,438 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:34:16,439 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3bec48-083d-4f7b-985a-a8465fb49556/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/13-privatized_35-traces-ex-2_true.i [2022-12-13 19:34:18,956 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:34:19,165 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:34:19,165 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3bec48-083d-4f7b-985a-a8465fb49556/sv-benchmarks/c/goblint-regression/13-privatized_35-traces-ex-2_true.i [2022-12-13 19:34:19,178 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3bec48-083d-4f7b-985a-a8465fb49556/bin/uautomizer-uyxdKDjOR8/data/4ea42e296/44d6d5026a8a4a8f808ef140cfb2a565/FLAG5f9becdb6 [2022-12-13 19:34:19,532 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3bec48-083d-4f7b-985a-a8465fb49556/bin/uautomizer-uyxdKDjOR8/data/4ea42e296/44d6d5026a8a4a8f808ef140cfb2a565 [2022-12-13 19:34:19,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:34:19,536 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:34:19,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:34:19,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:34:19,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:34:19,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:34:19" (1/1) ... [2022-12-13 19:34:19,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43782a8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:34:19, skipping insertion in model container [2022-12-13 19:34:19,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:34:19" (1/1) ... [2022-12-13 19:34:19,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:34:19,591 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:34:19,706 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_ec3bec48-083d-4f7b-985a-a8465fb49556/sv-benchmarks/c/goblint-regression/13-privatized_35-traces-ex-2_true.i[1088,1101] [2022-12-13 19:34:19,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:34:19,818 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:34:19,827 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_ec3bec48-083d-4f7b-985a-a8465fb49556/sv-benchmarks/c/goblint-regression/13-privatized_35-traces-ex-2_true.i[1088,1101] [2022-12-13 19:34:19,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:34:19,879 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:34:19,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:34:19 WrapperNode [2022-12-13 19:34:19,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:34:19,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:34:19,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:34:19,880 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:34:19,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:34:19" (1/1) ... [2022-12-13 19:34:19,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:34:19" (1/1) ... [2022-12-13 19:34:19,910 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-12-13 19:34:19,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:34:19,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:34:19,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:34:19,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:34:19,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:34:19" (1/1) ... [2022-12-13 19:34:19,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:34:19" (1/1) ... [2022-12-13 19:34:19,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:34:19" (1/1) ... [2022-12-13 19:34:19,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:34:19" (1/1) ... [2022-12-13 19:34:19,925 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:34:19" (1/1) ... [2022-12-13 19:34:19,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:34:19" (1/1) ... [2022-12-13 19:34:19,928 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:34:19" (1/1) ... [2022-12-13 19:34:19,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:34:19" (1/1) ... [2022-12-13 19:34:19,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:34:19,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:34:19,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:34:19,932 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:34:19,933 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:34:19" (1/1) ... [2022-12-13 19:34:19,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:34:19,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3bec48-083d-4f7b-985a-a8465fb49556/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:34:19,955 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3bec48-083d-4f7b-985a-a8465fb49556/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:34:19,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3bec48-083d-4f7b-985a-a8465fb49556/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:34:19,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 19:34:19,982 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 19:34:19,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:34:19,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 19:34:19,982 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 19:34:19,982 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 19:34:19,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 19:34:19,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 19:34:19,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:34:19,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:34:19,984 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 19:34:20,073 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:34:20,074 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:34:20,187 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:34:20,193 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:34:20,193 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 19:34:20,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:34:20 BoogieIcfgContainer [2022-12-13 19:34:20,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:34:20,196 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:34:20,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:34:20,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:34:20,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:34:19" (1/3) ... [2022-12-13 19:34:20,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23010640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:34:20, skipping insertion in model container [2022-12-13 19:34:20,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:34:19" (2/3) ... [2022-12-13 19:34:20,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23010640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:34:20, skipping insertion in model container [2022-12-13 19:34:20,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:34:20" (3/3) ... [2022-12-13 19:34:20,201 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_35-traces-ex-2_true.i [2022-12-13 19:34:20,207 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 19:34:20,214 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:34:20,215 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 19:34:20,215 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 19:34:20,252 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 19:34:20,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 71 transitions, 147 flow [2022-12-13 19:34:20,304 INFO L130 PetriNetUnfolder]: 1/70 cut-off events. [2022-12-13 19:34:20,305 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:34:20,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 70 events. 1/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2022-12-13 19:34:20,308 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 71 transitions, 147 flow [2022-12-13 19:34:20,310 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 58 transitions, 119 flow [2022-12-13 19:34:20,313 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 19:34:20,320 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 58 transitions, 119 flow [2022-12-13 19:34:20,322 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 58 transitions, 119 flow [2022-12-13 19:34:20,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 58 transitions, 119 flow [2022-12-13 19:34:20,335 INFO L130 PetriNetUnfolder]: 0/58 cut-off events. [2022-12-13 19:34:20,335 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:34:20,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 58 events. 0/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 23 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-13 19:34:20,343 INFO L119 LiptonReduction]: Number of co-enabled transitions 336 [2022-12-13 19:34:21,852 INFO L134 LiptonReduction]: Checked pairs total: 795 [2022-12-13 19:34:21,852 INFO L136 LiptonReduction]: Total number of compositions: 45 [2022-12-13 19:34:21,862 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:34:21,867 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;@36293122, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:34:21,867 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 19:34:21,870 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2022-12-13 19:34:21,870 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:34:21,870 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:34:21,871 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 19:34:21,871 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 19:34:21,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:34:21,876 INFO L85 PathProgramCache]: Analyzing trace with hash 224817812, now seen corresponding path program 1 times [2022-12-13 19:34:21,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:34:21,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385454065] [2022-12-13 19:34:21,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:34:21,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:34:21,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:34:22,131 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 19:34:22,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:34:22,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385454065] [2022-12-13 19:34:22,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385454065] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:34:22,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:34:22,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 19:34:22,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816748373] [2022-12-13 19:34:22,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:34:22,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:34:22,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:34:22,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:34:22,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:34:22,172 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 116 [2022-12-13 19:34:22,174 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 13 transitions, 29 flow. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 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 19:34:22,175 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:34:22,175 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 116 [2022-12-13 19:34:22,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:34:22,208 INFO L130 PetriNetUnfolder]: 13/46 cut-off events. [2022-12-13 19:34:22,208 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:34:22,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 46 events. 13/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 9 based on Foata normal form. 5/51 useless extension candidates. Maximal degree in co-relation 81. Up to 26 conditions per place. [2022-12-13 19:34:22,210 INFO L137 encePairwiseOnDemand]: 112/116 looper letters, 10 selfloop transitions, 3 changer transitions 0/15 dead transitions. [2022-12-13 19:34:22,210 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 15 transitions, 59 flow [2022-12-13 19:34:22,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:34:22,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:34:22,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2022-12-13 19:34:22,222 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6005747126436781 [2022-12-13 19:34:22,222 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 209 transitions. [2022-12-13 19:34:22,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 209 transitions. [2022-12-13 19:34:22,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:34:22,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 209 transitions. [2022-12-13 19:34:22,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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 19:34:22,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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 19:34:22,233 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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 19:34:22,235 INFO L175 Difference]: Start difference. First operand has 17 places, 13 transitions, 29 flow. Second operand 3 states and 209 transitions. [2022-12-13 19:34:22,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 15 transitions, 59 flow [2022-12-13 19:34:22,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 15 transitions, 58 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 19:34:22,239 INFO L231 Difference]: Finished difference. Result has 19 places, 13 transitions, 39 flow [2022-12-13 19:34:22,240 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=39, PETRI_PLACES=19, PETRI_TRANSITIONS=13} [2022-12-13 19:34:22,243 INFO L288 CegarLoopForPetriNet]: 17 programPoint places, 2 predicate places. [2022-12-13 19:34:22,243 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 13 transitions, 39 flow [2022-12-13 19:34:22,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 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 19:34:22,244 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:34:22,244 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:34:22,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 19:34:22,244 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 19:34:22,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:34:22,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1672219432, now seen corresponding path program 1 times [2022-12-13 19:34:22,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:34:22,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034136981] [2022-12-13 19:34:22,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:34:22,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:34:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:34:22,330 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 19:34:22,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:34:22,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034136981] [2022-12-13 19:34:22,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034136981] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:34:22,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:34:22,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:34:22,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897715774] [2022-12-13 19:34:22,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:34:22,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:34:22,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:34:22,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:34:22,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:34:22,356 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 116 [2022-12-13 19:34:22,357 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 13 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 19:34:22,357 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:34:22,357 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 116 [2022-12-13 19:34:22,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:34:22,385 INFO L130 PetriNetUnfolder]: 9/40 cut-off events. [2022-12-13 19:34:22,385 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 19:34:22,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 40 events. 9/40 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 70 event pairs, 4 based on Foata normal form. 3/43 useless extension candidates. Maximal degree in co-relation 80. Up to 21 conditions per place. [2022-12-13 19:34:22,386 INFO L137 encePairwiseOnDemand]: 111/116 looper letters, 9 selfloop transitions, 4 changer transitions 2/17 dead transitions. [2022-12-13 19:34:22,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 17 transitions, 77 flow [2022-12-13 19:34:22,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:34:22,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:34:22,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2022-12-13 19:34:22,388 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5660919540229885 [2022-12-13 19:34:22,388 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 197 transitions. [2022-12-13 19:34:22,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 197 transitions. [2022-12-13 19:34:22,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:34:22,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 197 transitions. [2022-12-13 19:34:22,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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 19:34:22,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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 19:34:22,391 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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 19:34:22,391 INFO L175 Difference]: Start difference. First operand has 19 places, 13 transitions, 39 flow. Second operand 3 states and 197 transitions. [2022-12-13 19:34:22,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 17 transitions, 77 flow [2022-12-13 19:34:22,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 17 transitions, 71 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 19:34:22,392 INFO L231 Difference]: Finished difference. Result has 20 places, 13 transitions, 47 flow [2022-12-13 19:34:22,392 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=20, PETRI_TRANSITIONS=13} [2022-12-13 19:34:22,393 INFO L288 CegarLoopForPetriNet]: 17 programPoint places, 3 predicate places. [2022-12-13 19:34:22,393 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 13 transitions, 47 flow [2022-12-13 19:34:22,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 19:34:22,393 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:34:22,393 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:34:22,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 19:34:22,393 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 19:34:22,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:34:22,394 INFO L85 PathProgramCache]: Analyzing trace with hash 291628933, now seen corresponding path program 1 times [2022-12-13 19:34:22,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:34:22,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95210466] [2022-12-13 19:34:22,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:34:22,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:34:22,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:34:22,595 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 19:34:22,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:34:22,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95210466] [2022-12-13 19:34:22,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95210466] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:34:22,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:34:22,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:34:22,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238993779] [2022-12-13 19:34:22,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:34:22,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:34:22,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:34:22,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:34:22,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:34:22,666 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 116 [2022-12-13 19:34:22,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 13 transitions, 47 flow. Second operand has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 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 19:34:22,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:34:22,668 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 116 [2022-12-13 19:34:22,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:34:22,702 INFO L130 PetriNetUnfolder]: 1/15 cut-off events. [2022-12-13 19:34:22,702 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 19:34:22,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 15 events. 1/15 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 8/23 useless extension candidates. Maximal degree in co-relation 34. Up to 6 conditions per place. [2022-12-13 19:34:22,703 INFO L137 encePairwiseOnDemand]: 109/116 looper letters, 4 selfloop transitions, 5 changer transitions 5/14 dead transitions. [2022-12-13 19:34:22,703 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 14 transitions, 78 flow [2022-12-13 19:34:22,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:34:22,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:34:22,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 366 transitions. [2022-12-13 19:34:22,705 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5258620689655172 [2022-12-13 19:34:22,705 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 366 transitions. [2022-12-13 19:34:22,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 366 transitions. [2022-12-13 19:34:22,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:34:22,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 366 transitions. [2022-12-13 19:34:22,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 61.0) internal successors, (366), 6 states have internal predecessors, (366), 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 19:34:22,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 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 19:34:22,708 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 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 19:34:22,708 INFO L175 Difference]: Start difference. First operand has 20 places, 13 transitions, 47 flow. Second operand 6 states and 366 transitions. [2022-12-13 19:34:22,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 14 transitions, 78 flow [2022-12-13 19:34:22,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 14 transitions, 68 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 19:34:22,708 INFO L231 Difference]: Finished difference. Result has 21 places, 9 transitions, 37 flow [2022-12-13 19:34:22,709 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=37, PETRI_PLACES=21, PETRI_TRANSITIONS=9} [2022-12-13 19:34:22,709 INFO L288 CegarLoopForPetriNet]: 17 programPoint places, 4 predicate places. [2022-12-13 19:34:22,709 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 9 transitions, 37 flow [2022-12-13 19:34:22,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 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 19:34:22,709 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:34:22,709 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:34:22,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 19:34:22,710 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 19:34:22,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:34:22,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1629616573, now seen corresponding path program 2 times [2022-12-13 19:34:22,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:34:22,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882508192] [2022-12-13 19:34:22,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:34:22,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:34:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:34:22,843 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 19:34:22,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:34:22,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882508192] [2022-12-13 19:34:22,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882508192] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:34:22,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:34:22,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:34:22,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994711463] [2022-12-13 19:34:22,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:34:22,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 19:34:22,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:34:22,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 19:34:22,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:34:22,910 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 116 [2022-12-13 19:34:22,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 9 transitions, 37 flow. Second operand has 7 states, 7 states have (on average 54.285714285714285) internal successors, (380), 7 states have internal predecessors, (380), 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 19:34:22,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:34:22,911 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 116 [2022-12-13 19:34:22,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:34:22,945 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2022-12-13 19:34:22,945 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:34:22,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 7 events. 0/7 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/8 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-12-13 19:34:22,945 INFO L137 encePairwiseOnDemand]: 112/116 looper letters, 0 selfloop transitions, 0 changer transitions 7/7 dead transitions. [2022-12-13 19:34:22,945 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 7 transitions, 44 flow [2022-12-13 19:34:22,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:34:22,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 19:34:22,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 273 transitions. [2022-12-13 19:34:22,947 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4706896551724138 [2022-12-13 19:34:22,947 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 273 transitions. [2022-12-13 19:34:22,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 273 transitions. [2022-12-13 19:34:22,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:34:22,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 273 transitions. [2022-12-13 19:34:22,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 54.6) internal successors, (273), 5 states have internal predecessors, (273), 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 19:34:22,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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 19:34:22,952 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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 19:34:22,952 INFO L175 Difference]: Start difference. First operand has 21 places, 9 transitions, 37 flow. Second operand 5 states and 273 transitions. [2022-12-13 19:34:22,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 7 transitions, 44 flow [2022-12-13 19:34:22,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 7 transitions, 30 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-12-13 19:34:22,952 INFO L231 Difference]: Finished difference. Result has 14 places, 0 transitions, 0 flow [2022-12-13 19:34:22,952 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=14, PETRI_TRANSITIONS=0} [2022-12-13 19:34:22,953 INFO L288 CegarLoopForPetriNet]: 17 programPoint places, -3 predicate places. [2022-12-13 19:34:22,953 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 0 transitions, 0 flow [2022-12-13 19:34:22,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 54.285714285714285) internal successors, (380), 7 states have internal predecessors, (380), 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 19:34:22,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-13 19:34:22,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-13 19:34:22,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 19:34:22,956 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-12-13 19:34:22,958 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 19:34:22,958 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:34:22,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:34:22 BasicIcfg [2022-12-13 19:34:22,960 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:34:22,961 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:34:22,961 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:34:22,961 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:34:22,961 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:34:20" (3/4) ... [2022-12-13 19:34:22,963 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 19:34:22,967 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-13 19:34:22,970 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-12-13 19:34:22,970 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 19:34:22,970 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 19:34:22,970 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 19:34:22,991 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3bec48-083d-4f7b-985a-a8465fb49556/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 19:34:22,991 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:34:22,991 INFO L158 Benchmark]: Toolchain (without parser) took 3455.27ms. Allocated memory was 140.5MB in the beginning and 172.0MB in the end (delta: 31.5MB). Free memory was 104.2MB in the beginning and 115.4MB in the end (delta: -11.2MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2022-12-13 19:34:22,991 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 140.5MB. Free memory is still 110.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:34:22,992 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.22ms. Allocated memory is still 140.5MB. Free memory was 104.2MB in the beginning and 85.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 19:34:22,992 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.63ms. Allocated memory is still 140.5MB. Free memory was 85.3MB in the beginning and 83.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:34:22,992 INFO L158 Benchmark]: Boogie Preprocessor took 19.73ms. Allocated memory is still 140.5MB. Free memory was 83.2MB in the beginning and 81.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:34:22,992 INFO L158 Benchmark]: RCFGBuilder took 262.85ms. Allocated memory is still 140.5MB. Free memory was 81.8MB in the beginning and 69.1MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 19:34:22,993 INFO L158 Benchmark]: TraceAbstraction took 2764.04ms. Allocated memory was 140.5MB in the beginning and 172.0MB in the end (delta: 31.5MB). Free memory was 68.6MB in the beginning and 117.5MB in the end (delta: -49.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:34:22,993 INFO L158 Benchmark]: Witness Printer took 30.22ms. Allocated memory is still 172.0MB. Free memory was 117.5MB in the beginning and 115.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:34:22,994 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 140.5MB. Free memory is still 110.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.22ms. Allocated memory is still 140.5MB. Free memory was 104.2MB in the beginning and 85.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.63ms. Allocated memory is still 140.5MB. Free memory was 85.3MB in the beginning and 83.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.73ms. Allocated memory is still 140.5MB. Free memory was 83.2MB in the beginning and 81.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 262.85ms. Allocated memory is still 140.5MB. Free memory was 81.8MB in the beginning and 69.1MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2764.04ms. Allocated memory was 140.5MB in the beginning and 172.0MB in the end (delta: 31.5MB). Free memory was 68.6MB in the beginning and 117.5MB in the end (delta: -49.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 30.22ms. Allocated memory is still 172.0MB. Free memory was 117.5MB in the beginning and 115.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 62 PlacesBefore, 17 PlacesAfterwards, 58 TransitionsBefore, 13 TransitionsAfterwards, 336 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 45 TotalNumberOfCompositions, 795 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 399, independent: 284, independent conditional: 0, independent unconditional: 284, dependent: 115, dependent conditional: 0, dependent unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 186, independent: 162, independent conditional: 0, independent unconditional: 162, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 399, independent: 122, independent conditional: 0, independent unconditional: 122, dependent: 91, dependent conditional: 0, dependent unconditional: 91, unknown: 186, unknown conditional: 0, unknown unconditional: 186] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 2 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: 2.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 225 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 140 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 338 IncrementalHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 11 mSDtfsCounter, 338 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=2, InterpolantAutomatonStates: 17, 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, 0.5s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 186 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 19:34:23,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3bec48-083d-4f7b-985a-a8465fb49556/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