./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-sre-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_2a60f0e6-32b4-453f-b4f3-fc98a347b0a3/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a60f0e6-32b4-453f-b4f3-fc98a347b0a3/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a60f0e6-32b4-453f-b4f3-fc98a347b0a3/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a60f0e6-32b4-453f-b4f3-fc98a347b0a3/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-sre-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a60f0e6-32b4-453f-b4f3-fc98a347b0a3/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a60f0e6-32b4-453f-b4f3-fc98a347b0a3/bin/uautomizer-ug76WZFUDN --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 039f5312b62da5ff616f0ade8cc5a2dd494698e7519842b003d8d55f65a5fe6c --- 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-6b4ec56 [2022-11-20 12:42:23,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:42:23,114 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:42:23,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:42:23,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:42:23,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:42:23,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:42:23,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:42:23,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:42:23,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:42:23,182 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:42:23,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:42:23,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:42:23,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:42:23,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:42:23,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:42:23,195 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:42:23,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:42:23,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:42:23,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:42:23,218 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:42:23,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:42:23,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:42:23,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:42:23,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:42:23,237 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:42:23,237 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:42:23,238 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:42:23,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:42:23,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:42:23,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:42:23,242 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:42:23,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:42:23,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:42:23,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:42:23,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:42:23,247 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:42:23,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:42:23,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:42:23,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:42:23,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:42:23,252 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a60f0e6-32b4-453f-b4f3-fc98a347b0a3/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 12:42:23,277 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:42:23,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:42:23,278 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:42:23,279 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:42:23,280 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:42:23,280 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:42:23,281 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:42:23,281 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:42:23,282 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:42:23,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:42:23,282 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:42:23,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:42:23,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:42:23,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:42:23,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:42:23,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:42:23,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:42:23,285 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:42:23,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:42:23,285 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:42:23,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:42:23,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:42:23,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:42:23,287 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:42:23,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:42:23,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:42:23,288 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:42:23,288 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:42:23,288 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:42:23,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:42:23,289 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:42:23,289 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:42:23,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:42:23,290 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_2a60f0e6-32b4-453f-b4f3-fc98a347b0a3/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a60f0e6-32b4-453f-b4f3-fc98a347b0a3/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 039f5312b62da5ff616f0ade8cc5a2dd494698e7519842b003d8d55f65a5fe6c [2022-11-20 12:42:23,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:42:23,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:42:23,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:42:23,661 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:42:23,662 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:42:23,664 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a60f0e6-32b4-453f-b4f3-fc98a347b0a3/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/chl-sre-subst.wvr.c [2022-11-20 12:42:26,958 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:42:27,297 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:42:27,297 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a60f0e6-32b4-453f-b4f3-fc98a347b0a3/sv-benchmarks/c/weaver/chl-sre-subst.wvr.c [2022-11-20 12:42:27,305 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a60f0e6-32b4-453f-b4f3-fc98a347b0a3/bin/uautomizer-ug76WZFUDN/data/dcd7d62e5/53c31ae94167482b90ba997f45d61128/FLAG7ef04a95d [2022-11-20 12:42:27,323 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a60f0e6-32b4-453f-b4f3-fc98a347b0a3/bin/uautomizer-ug76WZFUDN/data/dcd7d62e5/53c31ae94167482b90ba997f45d61128 [2022-11-20 12:42:27,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:42:27,328 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:42:27,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:42:27,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:42:27,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:42:27,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:42:27" (1/1) ... [2022-11-20 12:42:27,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43ad162c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:27, skipping insertion in model container [2022-11-20 12:42:27,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:42:27" (1/1) ... [2022-11-20 12:42:27,347 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:42:27,366 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:42:27,569 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_2a60f0e6-32b4-453f-b4f3-fc98a347b0a3/sv-benchmarks/c/weaver/chl-sre-subst.wvr.c[2333,2346] [2022-11-20 12:42:27,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:42:27,590 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:42:27,630 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_2a60f0e6-32b4-453f-b4f3-fc98a347b0a3/sv-benchmarks/c/weaver/chl-sre-subst.wvr.c[2333,2346] [2022-11-20 12:42:27,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:42:27,652 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:42:27,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:27 WrapperNode [2022-11-20 12:42:27,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:42:27,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:42:27,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:42:27,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:42:27,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:27" (1/1) ... [2022-11-20 12:42:27,694 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:27" (1/1) ... [2022-11-20 12:42:27,734 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2022-11-20 12:42:27,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:42:27,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:42:27,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:42:27,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:42:27,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:27" (1/1) ... [2022-11-20 12:42:27,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:27" (1/1) ... [2022-11-20 12:42:27,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:27" (1/1) ... [2022-11-20 12:42:27,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:27" (1/1) ... [2022-11-20 12:42:27,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:27" (1/1) ... [2022-11-20 12:42:27,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:27" (1/1) ... [2022-11-20 12:42:27,779 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:27" (1/1) ... [2022-11-20 12:42:27,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:27" (1/1) ... [2022-11-20 12:42:27,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:42:27,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:42:27,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:42:27,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:42:27,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:27" (1/1) ... [2022-11-20 12:42:27,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:42:27,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a60f0e6-32b4-453f-b4f3-fc98a347b0a3/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:42:27,835 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a60f0e6-32b4-453f-b4f3-fc98a347b0a3/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:42:27,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a60f0e6-32b4-453f-b4f3-fc98a347b0a3/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:42:27,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:42:27,898 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 12:42:27,898 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 12:42:27,898 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 12:42:27,899 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 12:42:27,899 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 12:42:27,899 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 12:42:27,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:42:27,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:42:27,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:42:27,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:42:27,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:42:27,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:42:27,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:42:27,905 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:42:28,077 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:42:28,080 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:42:28,377 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:42:28,385 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:42:28,385 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:42:28,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:42:28 BoogieIcfgContainer [2022-11-20 12:42:28,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:42:28,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:42:28,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:42:28,404 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:42:28,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:42:27" (1/3) ... [2022-11-20 12:42:28,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@354e8cb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:42:28, skipping insertion in model container [2022-11-20 12:42:28,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:27" (2/3) ... [2022-11-20 12:42:28,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@354e8cb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:42:28, skipping insertion in model container [2022-11-20 12:42:28,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:42:28" (3/3) ... [2022-11-20 12:42:28,408 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-sre-subst.wvr.c [2022-11-20 12:42:28,422 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:42:28,434 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:42:28,435 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:42:28,435 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:42:28,541 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 12:42:28,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 94 transitions, 212 flow [2022-11-20 12:42:28,678 INFO L130 PetriNetUnfolder]: 2/91 cut-off events. [2022-11-20 12:42:28,681 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 12:42:28,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 91 events. 2/91 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2022-11-20 12:42:28,685 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 94 transitions, 212 flow [2022-11-20 12:42:28,692 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 80 transitions, 178 flow [2022-11-20 12:42:28,714 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:42:28,723 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;@43307521, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:42:28,723 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-20 12:42:28,783 INFO L130 PetriNetUnfolder]: 2/79 cut-off events. [2022-11-20 12:42:28,783 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 12:42:28,783 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:28,785 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:42:28,786 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-20 12:42:28,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:28,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1614488789, now seen corresponding path program 1 times [2022-11-20 12:42:28,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:28,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737839550] [2022-11-20 12:42:28,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:28,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:33,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:42:33,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:33,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737839550] [2022-11-20 12:42:33,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737839550] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:33,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:33,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 12:42:33,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175907230] [2022-11-20 12:42:33,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:33,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 12:42:33,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:33,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 12:42:33,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:42:33,803 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2022-11-20 12:42:33,814 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 80 transitions, 178 flow. Second operand has 10 states, 10 states have (on average 65.6) internal successors, (656), 10 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:33,816 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:33,816 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2022-11-20 12:42:33,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:36,087 INFO L130 PetriNetUnfolder]: 14/183 cut-off events. [2022-11-20 12:42:36,087 INFO L131 PetriNetUnfolder]: For 49/55 co-relation queries the response was YES. [2022-11-20 12:42:36,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 183 events. 14/183 cut-off events. For 49/55 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 486 event pairs, 7 based on Foata normal form. 7/179 useless extension candidates. Maximal degree in co-relation 129. Up to 30 conditions per place. [2022-11-20 12:42:36,096 INFO L137 encePairwiseOnDemand]: 81/94 looper letters, 39 selfloop transitions, 2 changer transitions 17/108 dead transitions. [2022-11-20 12:42:36,097 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 108 transitions, 374 flow [2022-11-20 12:42:36,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 12:42:36,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 12:42:36,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 884 transitions. [2022-11-20 12:42:36,125 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.723404255319149 [2022-11-20 12:42:36,126 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 884 transitions. [2022-11-20 12:42:36,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 884 transitions. [2022-11-20 12:42:36,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:36,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 884 transitions. [2022-11-20 12:42:36,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 68.0) internal successors, (884), 13 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:36,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:36,154 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:36,156 INFO L175 Difference]: Start difference. First operand has 88 places, 80 transitions, 178 flow. Second operand 13 states and 884 transitions. [2022-11-20 12:42:36,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 108 transitions, 374 flow [2022-11-20 12:42:36,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 108 transitions, 346 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 12:42:36,169 INFO L231 Difference]: Finished difference. Result has 102 places, 77 transitions, 183 flow [2022-11-20 12:42:36,171 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=183, PETRI_PLACES=102, PETRI_TRANSITIONS=77} [2022-11-20 12:42:36,178 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 14 predicate places. [2022-11-20 12:42:36,178 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 77 transitions, 183 flow [2022-11-20 12:42:36,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.6) internal successors, (656), 10 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:36,180 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:36,180 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:42:36,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:42:36,181 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-20 12:42:36,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:36,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1062279567, now seen corresponding path program 2 times [2022-11-20 12:42:36,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:36,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112810296] [2022-11-20 12:42:36,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:36,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:38,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:42:38,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:38,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112810296] [2022-11-20 12:42:38,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112810296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:38,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:38,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 12:42:38,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869210400] [2022-11-20 12:42:38,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:38,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 12:42:38,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:38,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 12:42:38,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:42:38,558 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2022-11-20 12:42:38,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 77 transitions, 183 flow. Second operand has 10 states, 10 states have (on average 65.6) internal successors, (656), 10 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:38,560 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:38,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2022-11-20 12:42:38,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:39,689 INFO L130 PetriNetUnfolder]: 13/217 cut-off events. [2022-11-20 12:42:39,690 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2022-11-20 12:42:39,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 217 events. 13/217 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 733 event pairs, 5 based on Foata normal form. 1/213 useless extension candidates. Maximal degree in co-relation 352. Up to 42 conditions per place. [2022-11-20 12:42:39,692 INFO L137 encePairwiseOnDemand]: 85/94 looper letters, 39 selfloop transitions, 3 changer transitions 12/104 dead transitions. [2022-11-20 12:42:39,692 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 104 transitions, 384 flow [2022-11-20 12:42:39,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 12:42:39,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-20 12:42:39,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 684 transitions. [2022-11-20 12:42:39,696 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7276595744680852 [2022-11-20 12:42:39,696 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 684 transitions. [2022-11-20 12:42:39,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 684 transitions. [2022-11-20 12:42:39,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:39,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 684 transitions. [2022-11-20 12:42:39,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 68.4) internal successors, (684), 10 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:39,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:39,703 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:39,704 INFO L175 Difference]: Start difference. First operand has 102 places, 77 transitions, 183 flow. Second operand 10 states and 684 transitions. [2022-11-20 12:42:39,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 104 transitions, 384 flow [2022-11-20 12:42:39,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 104 transitions, 347 flow, removed 17 selfloop flow, removed 7 redundant places. [2022-11-20 12:42:39,709 INFO L231 Difference]: Finished difference. Result has 101 places, 78 transitions, 200 flow [2022-11-20 12:42:39,710 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=200, PETRI_PLACES=101, PETRI_TRANSITIONS=78} [2022-11-20 12:42:39,711 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 13 predicate places. [2022-11-20 12:42:39,711 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 78 transitions, 200 flow [2022-11-20 12:42:39,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.6) internal successors, (656), 10 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:39,712 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:39,712 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:42:39,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:42:39,713 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-20 12:42:39,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:39,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1656550891, now seen corresponding path program 3 times [2022-11-20 12:42:39,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:39,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181597583] [2022-11-20 12:42:39,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:39,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:41,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:42:41,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:41,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181597583] [2022-11-20 12:42:41,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181597583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:41,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:41,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 12:42:41,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569054401] [2022-11-20 12:42:41,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:41,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 12:42:41,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:41,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 12:42:41,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:42:41,975 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2022-11-20 12:42:41,977 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 78 transitions, 200 flow. Second operand has 10 states, 10 states have (on average 65.6) internal successors, (656), 10 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:41,977 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:41,977 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2022-11-20 12:42:41,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:43,080 INFO L130 PetriNetUnfolder]: 11/191 cut-off events. [2022-11-20 12:42:43,082 INFO L131 PetriNetUnfolder]: For 101/101 co-relation queries the response was YES. [2022-11-20 12:42:43,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 191 events. 11/191 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 543 event pairs, 4 based on Foata normal form. 1/189 useless extension candidates. Maximal degree in co-relation 335. Up to 31 conditions per place. [2022-11-20 12:42:43,085 INFO L137 encePairwiseOnDemand]: 85/94 looper letters, 37 selfloop transitions, 3 changer transitions 13/103 dead transitions. [2022-11-20 12:42:43,085 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 103 transitions, 396 flow [2022-11-20 12:42:43,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 12:42:43,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-20 12:42:43,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 683 transitions. [2022-11-20 12:42:43,089 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7265957446808511 [2022-11-20 12:42:43,089 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 683 transitions. [2022-11-20 12:42:43,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 683 transitions. [2022-11-20 12:42:43,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:43,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 683 transitions. [2022-11-20 12:42:43,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 68.3) internal successors, (683), 10 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:43,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:43,095 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:43,095 INFO L175 Difference]: Start difference. First operand has 101 places, 78 transitions, 200 flow. Second operand 10 states and 683 transitions. [2022-11-20 12:42:43,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 103 transitions, 396 flow [2022-11-20 12:42:43,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 103 transitions, 358 flow, removed 18 selfloop flow, removed 7 redundant places. [2022-11-20 12:42:43,101 INFO L231 Difference]: Finished difference. Result has 104 places, 78 transitions, 205 flow [2022-11-20 12:42:43,101 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=205, PETRI_PLACES=104, PETRI_TRANSITIONS=78} [2022-11-20 12:42:43,104 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 16 predicate places. [2022-11-20 12:42:43,104 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 78 transitions, 205 flow [2022-11-20 12:42:43,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.6) internal successors, (656), 10 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:43,105 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:43,105 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:42:43,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:42:43,106 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-20 12:42:43,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:43,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1366689009, now seen corresponding path program 4 times [2022-11-20 12:42:43,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:43,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029585742] [2022-11-20 12:42:43,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:43,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:44,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:42:44,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:44,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029585742] [2022-11-20 12:42:44,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029585742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:44,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:44,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 12:42:44,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284582988] [2022-11-20 12:42:44,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:44,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 12:42:44,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:44,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 12:42:44,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:42:44,632 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2022-11-20 12:42:44,633 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 78 transitions, 205 flow. Second operand has 10 states, 10 states have (on average 65.6) internal successors, (656), 10 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:44,633 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:44,633 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2022-11-20 12:42:44,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:46,405 INFO L130 PetriNetUnfolder]: 8/148 cut-off events. [2022-11-20 12:42:46,406 INFO L131 PetriNetUnfolder]: For 102/108 co-relation queries the response was YES. [2022-11-20 12:42:46,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 148 events. 8/148 cut-off events. For 102/108 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 323 event pairs, 3 based on Foata normal form. 3/148 useless extension candidates. Maximal degree in co-relation 272. Up to 25 conditions per place. [2022-11-20 12:42:46,407 INFO L137 encePairwiseOnDemand]: 85/94 looper letters, 26 selfloop transitions, 2 changer transitions 17/95 dead transitions. [2022-11-20 12:42:46,407 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 95 transitions, 374 flow [2022-11-20 12:42:46,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 12:42:46,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-20 12:42:46,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 673 transitions. [2022-11-20 12:42:46,411 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7159574468085106 [2022-11-20 12:42:46,411 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 673 transitions. [2022-11-20 12:42:46,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 673 transitions. [2022-11-20 12:42:46,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:46,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 673 transitions. [2022-11-20 12:42:46,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 67.3) internal successors, (673), 10 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:46,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:46,416 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:46,416 INFO L175 Difference]: Start difference. First operand has 104 places, 78 transitions, 205 flow. Second operand 10 states and 673 transitions. [2022-11-20 12:42:46,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 95 transitions, 374 flow [2022-11-20 12:42:46,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 95 transitions, 338 flow, removed 15 selfloop flow, removed 9 redundant places. [2022-11-20 12:42:46,420 INFO L231 Difference]: Finished difference. Result has 103 places, 76 transitions, 187 flow [2022-11-20 12:42:46,420 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=187, PETRI_PLACES=103, PETRI_TRANSITIONS=76} [2022-11-20 12:42:46,421 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 15 predicate places. [2022-11-20 12:42:46,421 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 76 transitions, 187 flow [2022-11-20 12:42:46,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.6) internal successors, (656), 10 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:46,422 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:46,422 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:42:46,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:42:46,423 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-20 12:42:46,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:46,424 INFO L85 PathProgramCache]: Analyzing trace with hash -494242995, now seen corresponding path program 5 times [2022-11-20 12:42:46,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:46,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245202909] [2022-11-20 12:42:46,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:46,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:48,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:42:48,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:48,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245202909] [2022-11-20 12:42:48,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245202909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:48,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:48,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 12:42:48,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968964983] [2022-11-20 12:42:48,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:48,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 12:42:48,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:48,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 12:42:48,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:42:48,868 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2022-11-20 12:42:48,869 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 76 transitions, 187 flow. Second operand has 10 states, 10 states have (on average 65.6) internal successors, (656), 10 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:48,870 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:48,870 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2022-11-20 12:42:48,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:50,326 INFO L130 PetriNetUnfolder]: 1/107 cut-off events. [2022-11-20 12:42:50,327 INFO L131 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2022-11-20 12:42:50,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 107 events. 1/107 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 117 event pairs, 1 based on Foata normal form. 1/107 useless extension candidates. Maximal degree in co-relation 178. Up to 16 conditions per place. [2022-11-20 12:42:50,328 INFO L137 encePairwiseOnDemand]: 85/94 looper letters, 25 selfloop transitions, 1 changer transitions 12/88 dead transitions. [2022-11-20 12:42:50,328 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 88 transitions, 313 flow [2022-11-20 12:42:50,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 12:42:50,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-20 12:42:50,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 669 transitions. [2022-11-20 12:42:50,343 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7117021276595744 [2022-11-20 12:42:50,344 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 669 transitions. [2022-11-20 12:42:50,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 669 transitions. [2022-11-20 12:42:50,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:50,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 669 transitions. [2022-11-20 12:42:50,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 66.9) internal successors, (669), 10 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:50,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:50,348 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:50,348 INFO L175 Difference]: Start difference. First operand has 103 places, 76 transitions, 187 flow. Second operand 10 states and 669 transitions. [2022-11-20 12:42:50,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 88 transitions, 313 flow [2022-11-20 12:42:50,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 88 transitions, 273 flow, removed 14 selfloop flow, removed 11 redundant places. [2022-11-20 12:42:50,352 INFO L231 Difference]: Finished difference. Result has 102 places, 76 transitions, 183 flow [2022-11-20 12:42:50,352 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=183, PETRI_PLACES=102, PETRI_TRANSITIONS=76} [2022-11-20 12:42:50,352 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 14 predicate places. [2022-11-20 12:42:50,353 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 76 transitions, 183 flow [2022-11-20 12:42:50,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.6) internal successors, (656), 10 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:50,354 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:50,354 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:42:50,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:42:50,355 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-20 12:42:50,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:50,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1804698059, now seen corresponding path program 6 times [2022-11-20 12:42:50,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:50,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004599726] [2022-11-20 12:42:50,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:50,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:50,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:52,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:42:52,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:52,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004599726] [2022-11-20 12:42:52,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004599726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:52,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:52,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 12:42:52,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571620179] [2022-11-20 12:42:52,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:52,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 12:42:52,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:52,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 12:42:52,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:42:52,189 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2022-11-20 12:42:52,190 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 76 transitions, 183 flow. Second operand has 10 states, 10 states have (on average 65.6) internal successors, (656), 10 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:52,190 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:52,190 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2022-11-20 12:42:52,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:53,681 INFO L130 PetriNetUnfolder]: 1/81 cut-off events. [2022-11-20 12:42:53,682 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-20 12:42:53,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 81 events. 1/81 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 50 event pairs, 0 based on Foata normal form. 1/82 useless extension candidates. Maximal degree in co-relation 130. Up to 14 conditions per place. [2022-11-20 12:42:53,682 INFO L137 encePairwiseOnDemand]: 85/94 looper letters, 0 selfloop transitions, 0 changer transitions 75/75 dead transitions. [2022-11-20 12:42:53,683 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 75 transitions, 238 flow [2022-11-20 12:42:53,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 12:42:53,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-20 12:42:53,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 658 transitions. [2022-11-20 12:42:53,685 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7 [2022-11-20 12:42:53,686 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 658 transitions. [2022-11-20 12:42:53,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 658 transitions. [2022-11-20 12:42:53,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:53,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 658 transitions. [2022-11-20 12:42:53,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 65.8) internal successors, (658), 10 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:53,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:53,691 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:53,692 INFO L175 Difference]: Start difference. First operand has 102 places, 76 transitions, 183 flow. Second operand 10 states and 658 transitions. [2022-11-20 12:42:53,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 75 transitions, 238 flow [2022-11-20 12:42:53,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 75 transitions, 224 flow, removed 6 selfloop flow, removed 7 redundant places. [2022-11-20 12:42:53,694 INFO L231 Difference]: Finished difference. Result has 94 places, 0 transitions, 0 flow [2022-11-20 12:42:53,694 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=94, PETRI_TRANSITIONS=0} [2022-11-20 12:42:53,695 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 6 predicate places. [2022-11-20 12:42:53,695 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 0 transitions, 0 flow [2022-11-20 12:42:53,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.6) internal successors, (656), 10 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:42:53,699 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-11-20 12:42:53,699 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-11-20 12:42:53,700 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-11-20 12:42:53,700 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-11-20 12:42:53,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:42:53,701 INFO L444 BasicCegarLoop]: Path program histogram: [6] [2022-11-20 12:42:53,705 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 12:42:53,705 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:42:53,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:42:53 BasicIcfg [2022-11-20 12:42:53,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:42:53,713 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:42:53,713 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:42:53,713 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:42:53,714 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:42:28" (3/4) ... [2022-11-20 12:42:53,717 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 12:42:53,724 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-20 12:42:53,724 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-20 12:42:53,725 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-20 12:42:53,729 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-20 12:42:53,729 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 12:42:53,730 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 12:42:53,730 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 12:42:53,766 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a60f0e6-32b4-453f-b4f3-fc98a347b0a3/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:42:53,766 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:42:53,767 INFO L158 Benchmark]: Toolchain (without parser) took 26439.18ms. Allocated memory was 188.7MB in the beginning and 394.3MB in the end (delta: 205.5MB). Free memory was 156.9MB in the beginning and 300.1MB in the end (delta: -143.2MB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. [2022-11-20 12:42:53,767 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 134.2MB. Free memory is still 76.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:42:53,768 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.95ms. Allocated memory is still 188.7MB. Free memory was 156.3MB in the beginning and 145.7MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 12:42:53,768 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.51ms. Allocated memory is still 188.7MB. Free memory was 145.7MB in the beginning and 144.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:42:53,769 INFO L158 Benchmark]: Boogie Preprocessor took 47.73ms. Allocated memory is still 188.7MB. Free memory was 144.3MB in the beginning and 142.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:42:53,769 INFO L158 Benchmark]: RCFGBuilder took 603.31ms. Allocated memory is still 188.7MB. Free memory was 142.7MB in the beginning and 129.6MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 12:42:53,770 INFO L158 Benchmark]: TraceAbstraction took 25311.39ms. Allocated memory was 188.7MB in the beginning and 394.3MB in the end (delta: 205.5MB). Free memory was 128.5MB in the beginning and 303.2MB in the end (delta: -174.7MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2022-11-20 12:42:53,770 INFO L158 Benchmark]: Witness Printer took 53.76ms. Allocated memory is still 394.3MB. Free memory was 303.2MB in the beginning and 300.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:42:53,772 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 134.2MB. Free memory is still 76.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.95ms. Allocated memory is still 188.7MB. Free memory was 156.3MB in the beginning and 145.7MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.51ms. Allocated memory is still 188.7MB. Free memory was 145.7MB in the beginning and 144.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.73ms. Allocated memory is still 188.7MB. Free memory was 144.3MB in the beginning and 142.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 603.31ms. Allocated memory is still 188.7MB. Free memory was 142.7MB in the beginning and 129.6MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 25311.39ms. Allocated memory was 188.7MB in the beginning and 394.3MB in the end (delta: 205.5MB). Free memory was 128.5MB in the beginning and 303.2MB in the end (delta: -174.7MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. * Witness Printer took 53.76ms. Allocated memory is still 394.3MB. Free memory was 303.2MB in the beginning and 300.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 77]: 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 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 25.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 300 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 300 mSDsluCounter, 492 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 378 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 813 IncrementalHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 114 mSDtfsCounter, 813 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 9.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=205occurred in iteration=3, InterpolantAutomatonStates: 63, 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, 0.4s SatisfiabilityAnalysisTime, 14.7s InterpolantComputationTime, 456 NumberOfCodeBlocks, 456 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 450 ConstructedInterpolants, 0 QuantifiedInterpolants, 8724 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 12:42:53,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a60f0e6-32b4-453f-b4f3-fc98a347b0a3/bin/uautomizer-ug76WZFUDN/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