./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe012_pso.oepc_pso.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe012_pso.oepc_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y --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 40c07d8b0b9ace0eb5e8218a2dd6fad770e2c982688ab22c161b74af49a1b102 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:53:43,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:53:43,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:53:43,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:53:43,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:53:43,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:53:43,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:53:43,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:53:43,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:53:43,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:53:43,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:53:43,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:53:43,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:53:43,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:53:43,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:53:43,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:53:43,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:53:43,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:53:43,201 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:53:43,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:53:43,211 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:53:43,213 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:53:43,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:53:43,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:53:43,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:53:43,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:53:43,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:53:43,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:53:43,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:53:43,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:53:43,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:53:43,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:53:43,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:53:43,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:53:43,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:53:43,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:53:43,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:53:43,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:53:43,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:53:43,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:53:43,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:53:43,243 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-13 18:53:43,291 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:53:43,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:53:43,292 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:53:43,293 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:53:43,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:53:43,294 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:53:43,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:53:43,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:53:43,295 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:53:43,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:53:43,297 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:53:43,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:53:43,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:53:43,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:53:43,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:53:43,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:53:43,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:53:43,299 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:53:43,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:53:43,299 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:53:43,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:53:43,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:53:43,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:53:43,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:53:43,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:53:43,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:53:43,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:53:43,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:53:43,301 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:53:43,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:53:43,304 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:53:43,304 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:53:43,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:53:43,305 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:53:43,305 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_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40c07d8b0b9ace0eb5e8218a2dd6fad770e2c982688ab22c161b74af49a1b102 [2021-11-13 18:53:43,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:53:43,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:53:43,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:53:43,632 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:53:43,632 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:53:43,634 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/pthread-wmm/safe012_pso.oepc_pso.opt_rmo.opt.i [2021-11-13 18:53:43,722 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/data/0b447cdb0/a9504ad442c44182882e6480bda34cbb/FLAG8f67eb0a0 [2021-11-13 18:53:44,262 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:53:44,267 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/sv-benchmarks/c/pthread-wmm/safe012_pso.oepc_pso.opt_rmo.opt.i [2021-11-13 18:53:44,288 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/data/0b447cdb0/a9504ad442c44182882e6480bda34cbb/FLAG8f67eb0a0 [2021-11-13 18:53:44,577 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/data/0b447cdb0/a9504ad442c44182882e6480bda34cbb [2021-11-13 18:53:44,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:53:44,582 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:53:44,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:53:44,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:53:44,587 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:53:44,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:53:44" (1/1) ... [2021-11-13 18:53:44,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e14fb20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:44, skipping insertion in model container [2021-11-13 18:53:44,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:53:44" (1/1) ... [2021-11-13 18:53:44,599 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:53:44,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:53:44,883 WARN L228 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_4b433f69-4389-413a-a393-9090be42076a/sv-benchmarks/c/pthread-wmm/safe012_pso.oepc_pso.opt_rmo.opt.i[1009,1022] [2021-11-13 18:53:45,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:53:45,087 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:53:45,099 WARN L228 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_4b433f69-4389-413a-a393-9090be42076a/sv-benchmarks/c/pthread-wmm/safe012_pso.oepc_pso.opt_rmo.opt.i[1009,1022] [2021-11-13 18:53:45,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:53:45,205 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:53:45,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:45 WrapperNode [2021-11-13 18:53:45,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:53:45,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:53:45,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:53:45,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:53:45,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:45" (1/1) ... [2021-11-13 18:53:45,268 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:45" (1/1) ... [2021-11-13 18:53:45,294 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:53:45,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:53:45,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:53:45,295 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:53:45,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:45" (1/1) ... [2021-11-13 18:53:45,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:45" (1/1) ... [2021-11-13 18:53:45,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:45" (1/1) ... [2021-11-13 18:53:45,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:45" (1/1) ... [2021-11-13 18:53:45,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:45" (1/1) ... [2021-11-13 18:53:45,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:45" (1/1) ... [2021-11-13 18:53:45,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:45" (1/1) ... [2021-11-13 18:53:45,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:53:45,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:53:45,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:53:45,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:53:45,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:45" (1/1) ... [2021-11-13 18:53:45,355 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:53:45,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:53:45,401 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:53:45,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:53:45,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:53:45,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-13 18:53:45,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:53:45,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:53:45,455 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-13 18:53:45,455 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-13 18:53:45,455 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-13 18:53:45,455 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-13 18:53:45,455 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-13 18:53:45,456 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-13 18:53:45,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:53:45,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-13 18:53:45,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:53:45,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:53:45,460 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-13 18:53:46,679 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:53:46,680 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 18:53:46,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:53:46 BoogieIcfgContainer [2021-11-13 18:53:46,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:53:46,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:53:46,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:53:46,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:53:46,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:53:44" (1/3) ... [2021-11-13 18:53:46,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c18a7ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:53:46, skipping insertion in model container [2021-11-13 18:53:46,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:45" (2/3) ... [2021-11-13 18:53:46,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c18a7ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:53:46, skipping insertion in model container [2021-11-13 18:53:46,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:53:46" (3/3) ... [2021-11-13 18:53:46,692 INFO L111 eAbstractionObserver]: Analyzing ICFG safe012_pso.oepc_pso.opt_rmo.opt.i [2021-11-13 18:53:46,698 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-13 18:53:46,698 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:53:46,699 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-13 18:53:46,699 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-13 18:53:46,751 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,751 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,752 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,752 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,752 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,752 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,752 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,753 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,753 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,753 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,754 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,754 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,754 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,754 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,754 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,755 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,756 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,756 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,756 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,757 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,757 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,757 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,757 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,758 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,758 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,758 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,760 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,763 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,763 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,764 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,764 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,764 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,765 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,765 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,765 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,765 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,765 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,766 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,766 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,766 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,766 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,766 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,766 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,767 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,767 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,767 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,769 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,769 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,769 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,769 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,770 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,770 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,770 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,770 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,771 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,771 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,771 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,771 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,771 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,771 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,772 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,772 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,772 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,772 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,772 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,773 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,773 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,774 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,774 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,774 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,774 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,775 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,775 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,775 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,776 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,776 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,776 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,776 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,776 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,776 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,777 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,777 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,777 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,778 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,780 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,783 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,783 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,784 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,786 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,786 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,787 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,787 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,787 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,787 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,794 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,794 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,794 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,795 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,795 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,795 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,795 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,796 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,796 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,796 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,796 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,797 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,797 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,797 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,797 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,797 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,797 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,798 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,798 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,798 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,799 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,799 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,799 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,799 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,800 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,800 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,800 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,800 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,801 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,802 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,803 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,803 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,803 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,803 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,804 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,804 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,804 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,804 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,804 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,805 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,805 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,805 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,805 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,806 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,806 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,806 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,806 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,806 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,806 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,807 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,807 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,807 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,808 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,808 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,817 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,818 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,818 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,818 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,818 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,819 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,819 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,820 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,820 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,820 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,824 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,824 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,824 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,824 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,825 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,825 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,825 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,825 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,825 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,825 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,826 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,826 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,826 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,826 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,826 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,827 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,827 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,827 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,827 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,827 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,828 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,828 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,828 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,828 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,828 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,829 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,829 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,830 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,830 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,830 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,830 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,830 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,831 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,831 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,831 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,831 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,831 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,832 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,832 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:53:46,832 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-13 18:53:46,881 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:53:46,903 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:53:46,904 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-13 18:53:46,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 115 transitions, 245 flow [2021-11-13 18:53:46,970 INFO L129 PetriNetUnfolder]: 2/112 cut-off events. [2021-11-13 18:53:46,970 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-13 18:53:46,974 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 112 events. 2/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2021-11-13 18:53:46,977 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 115 transitions, 245 flow [2021-11-13 18:53:46,986 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 112 transitions, 233 flow [2021-11-13 18:53:47,016 INFO L129 PetriNetUnfolder]: 0/59 cut-off events. [2021-11-13 18:53:47,016 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-13 18:53:47,016 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:53:47,017 INFO L254 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] [2021-11-13 18:53:47,019 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-13 18:53:47,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:53:47,032 INFO L85 PathProgramCache]: Analyzing trace with hash -955412974, now seen corresponding path program 1 times [2021-11-13 18:53:47,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:53:47,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578133396] [2021-11-13 18:53:47,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:53:47,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:53:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:47,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:53:47,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:53:47,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578133396] [2021-11-13 18:53:47,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578133396] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:53:47,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:53:47,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:53:47,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110384000] [2021-11-13 18:53:47,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:53:47,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:53:47,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:53:47,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:53:47,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:53:47,518 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 115 [2021-11-13 18:53:47,526 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 112 transitions, 233 flow. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2021-11-13 18:53:47,526 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:53:47,526 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 115 [2021-11-13 18:53:47,528 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:53:47,726 INFO L129 PetriNetUnfolder]: 37/223 cut-off events. [2021-11-13 18:53:47,731 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-11-13 18:53:47,736 INFO L84 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 223 events. 37/223 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 699 event pairs, 7 based on Foata normal form. 11/218 useless extension candidates. Maximal degree in co-relation 263. Up to 51 conditions per place. [2021-11-13 18:53:47,740 INFO L132 encePairwiseOnDemand]: 110/115 looper letters, 11 selfloop transitions, 2 changer transitions 0/112 dead transitions. [2021-11-13 18:53:47,741 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 112 transitions, 262 flow [2021-11-13 18:53:47,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:53:47,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-13 18:53:47,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 324 transitions. [2021-11-13 18:53:47,758 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9391304347826087 [2021-11-13 18:53:47,759 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 324 transitions. [2021-11-13 18:53:47,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 324 transitions. [2021-11-13 18:53:47,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:53:47,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 324 transitions. [2021-11-13 18:53:47,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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) [2021-11-13 18:53:47,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:53:47,775 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:53:47,777 INFO L186 Difference]: Start difference. First operand has 120 places, 112 transitions, 233 flow. Second operand 3 states and 324 transitions. [2021-11-13 18:53:47,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 112 transitions, 262 flow [2021-11-13 18:53:47,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 112 transitions, 258 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-11-13 18:53:47,787 INFO L242 Difference]: Finished difference. Result has 117 places, 108 transitions, 226 flow [2021-11-13 18:53:47,789 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=117, PETRI_TRANSITIONS=108} [2021-11-13 18:53:47,793 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, -3 predicate places. [2021-11-13 18:53:47,793 INFO L470 AbstractCegarLoop]: Abstraction has has 117 places, 108 transitions, 226 flow [2021-11-13 18:53:47,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2021-11-13 18:53:47,794 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:53:47,794 INFO L254 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] [2021-11-13 18:53:47,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:53:47,795 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-13 18:53:47,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:53:47,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1601349167, now seen corresponding path program 1 times [2021-11-13 18:53:47,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:53:47,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475094380] [2021-11-13 18:53:47,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:53:47,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:53:47,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:48,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:53:48,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:53:48,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475094380] [2021-11-13 18:53:48,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475094380] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:53:48,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:53:48,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:53:48,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642360847] [2021-11-13 18:53:48,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:53:48,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:53:48,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:53:48,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:53:48,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:53:48,221 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 115 [2021-11-13 18:53:48,222 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 108 transitions, 226 flow. Second operand has 7 states, 7 states have (on average 92.85714285714286) internal successors, (650), 7 states have internal predecessors, (650), 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) [2021-11-13 18:53:48,222 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:53:48,222 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 115 [2021-11-13 18:53:48,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:53:49,023 INFO L129 PetriNetUnfolder]: 546/1632 cut-off events. [2021-11-13 18:53:49,023 INFO L130 PetriNetUnfolder]: For 102/102 co-relation queries the response was YES. [2021-11-13 18:53:49,033 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2623 conditions, 1632 events. 546/1632 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 11413 event pairs, 273 based on Foata normal form. 0/1575 useless extension candidates. Maximal degree in co-relation 2568. Up to 429 conditions per place. [2021-11-13 18:53:49,042 INFO L132 encePairwiseOnDemand]: 109/115 looper letters, 24 selfloop transitions, 2 changer transitions 51/154 dead transitions. [2021-11-13 18:53:49,042 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 154 transitions, 468 flow [2021-11-13 18:53:49,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:53:49,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-13 18:53:49,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 887 transitions. [2021-11-13 18:53:49,051 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8570048309178744 [2021-11-13 18:53:49,051 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 887 transitions. [2021-11-13 18:53:49,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 887 transitions. [2021-11-13 18:53:49,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:53:49,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 887 transitions. [2021-11-13 18:53:49,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 98.55555555555556) internal successors, (887), 9 states have internal predecessors, (887), 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) [2021-11-13 18:53:49,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 115.0) internal successors, (1150), 10 states have internal predecessors, (1150), 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) [2021-11-13 18:53:49,064 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 115.0) internal successors, (1150), 10 states have internal predecessors, (1150), 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) [2021-11-13 18:53:49,065 INFO L186 Difference]: Start difference. First operand has 117 places, 108 transitions, 226 flow. Second operand 9 states and 887 transitions. [2021-11-13 18:53:49,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 154 transitions, 468 flow [2021-11-13 18:53:49,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 154 transitions, 450 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-13 18:53:49,074 INFO L242 Difference]: Finished difference. Result has 130 places, 96 transitions, 218 flow [2021-11-13 18:53:49,075 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=218, PETRI_PLACES=130, PETRI_TRANSITIONS=96} [2021-11-13 18:53:49,076 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 10 predicate places. [2021-11-13 18:53:49,076 INFO L470 AbstractCegarLoop]: Abstraction has has 130 places, 96 transitions, 218 flow [2021-11-13 18:53:49,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 92.85714285714286) internal successors, (650), 7 states have internal predecessors, (650), 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) [2021-11-13 18:53:49,077 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:53:49,077 INFO L254 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, 1] [2021-11-13 18:53:49,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:53:49,077 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-13 18:53:49,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:53:49,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1242640656, now seen corresponding path program 1 times [2021-11-13 18:53:49,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:53:49,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363425585] [2021-11-13 18:53:49,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:53:49,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:53:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:49,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:53:49,387 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:53:49,388 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363425585] [2021-11-13 18:53:49,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363425585] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:53:49,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:53:49,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:53:49,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595801826] [2021-11-13 18:53:49,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:53:49,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:53:49,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:53:49,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:53:49,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:53:49,395 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 115 [2021-11-13 18:53:49,396 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 96 transitions, 218 flow. Second operand has 7 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 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) [2021-11-13 18:53:49,396 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:53:49,396 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 115 [2021-11-13 18:53:49,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:53:49,859 INFO L129 PetriNetUnfolder]: 316/754 cut-off events. [2021-11-13 18:53:49,859 INFO L130 PetriNetUnfolder]: For 192/192 co-relation queries the response was YES. [2021-11-13 18:53:49,863 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1515 conditions, 754 events. 316/754 cut-off events. For 192/192 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3860 event pairs, 60 based on Foata normal form. 18/739 useless extension candidates. Maximal degree in co-relation 1453. Up to 264 conditions per place. [2021-11-13 18:53:49,867 INFO L132 encePairwiseOnDemand]: 107/115 looper letters, 20 selfloop transitions, 4 changer transitions 31/132 dead transitions. [2021-11-13 18:53:49,868 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 132 transitions, 421 flow [2021-11-13 18:53:49,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:53:49,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-13 18:53:49,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 967 transitions. [2021-11-13 18:53:49,872 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8408695652173913 [2021-11-13 18:53:49,872 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 967 transitions. [2021-11-13 18:53:49,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 967 transitions. [2021-11-13 18:53:49,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:53:49,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 967 transitions. [2021-11-13 18:53:49,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 96.7) internal successors, (967), 10 states have internal predecessors, (967), 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) [2021-11-13 18:53:49,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 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) [2021-11-13 18:53:49,882 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 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) [2021-11-13 18:53:49,882 INFO L186 Difference]: Start difference. First operand has 130 places, 96 transitions, 218 flow. Second operand 10 states and 967 transitions. [2021-11-13 18:53:49,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 132 transitions, 421 flow [2021-11-13 18:53:49,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 132 transitions, 387 flow, removed 14 selfloop flow, removed 8 redundant places. [2021-11-13 18:53:49,896 INFO L242 Difference]: Finished difference. Result has 120 places, 96 transitions, 226 flow [2021-11-13 18:53:49,897 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=226, PETRI_PLACES=120, PETRI_TRANSITIONS=96} [2021-11-13 18:53:49,899 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 0 predicate places. [2021-11-13 18:53:49,899 INFO L470 AbstractCegarLoop]: Abstraction has has 120 places, 96 transitions, 226 flow [2021-11-13 18:53:49,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 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) [2021-11-13 18:53:49,900 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:53:49,901 INFO L254 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, 1, 1, 1] [2021-11-13 18:53:49,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 18:53:49,901 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-13 18:53:49,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:53:49,903 INFO L85 PathProgramCache]: Analyzing trace with hash -2050639409, now seen corresponding path program 1 times [2021-11-13 18:53:49,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:53:49,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734225673] [2021-11-13 18:53:49,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:53:49,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:53:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:50,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:53:50,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:53:50,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734225673] [2021-11-13 18:53:50,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734225673] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:53:50,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:53:50,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 18:53:50,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707183117] [2021-11-13 18:53:50,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:53:50,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 18:53:50,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:53:50,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 18:53:50,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:53:50,153 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 115 [2021-11-13 18:53:50,155 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 96 transitions, 226 flow. Second operand has 8 states, 8 states have (on average 91.0) internal successors, (728), 8 states have internal predecessors, (728), 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) [2021-11-13 18:53:50,155 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:53:50,156 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 115 [2021-11-13 18:53:50,156 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:53:50,680 INFO L129 PetriNetUnfolder]: 389/890 cut-off events. [2021-11-13 18:53:50,681 INFO L130 PetriNetUnfolder]: For 225/225 co-relation queries the response was YES. [2021-11-13 18:53:50,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1832 conditions, 890 events. 389/890 cut-off events. For 225/225 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4768 event pairs, 102 based on Foata normal form. 18/859 useless extension candidates. Maximal degree in co-relation 1766. Up to 225 conditions per place. [2021-11-13 18:53:50,689 INFO L132 encePairwiseOnDemand]: 107/115 looper letters, 24 selfloop transitions, 4 changer transitions 35/138 dead transitions. [2021-11-13 18:53:50,689 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 138 transitions, 461 flow [2021-11-13 18:53:50,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:53:50,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-13 18:53:50,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 955 transitions. [2021-11-13 18:53:50,693 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8304347826086956 [2021-11-13 18:53:50,694 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 955 transitions. [2021-11-13 18:53:50,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 955 transitions. [2021-11-13 18:53:50,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:53:50,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 955 transitions. [2021-11-13 18:53:50,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 95.5) internal successors, (955), 10 states have internal predecessors, (955), 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) [2021-11-13 18:53:50,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 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) [2021-11-13 18:53:50,702 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 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) [2021-11-13 18:53:50,702 INFO L186 Difference]: Start difference. First operand has 120 places, 96 transitions, 226 flow. Second operand 10 states and 955 transitions. [2021-11-13 18:53:50,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 138 transitions, 461 flow [2021-11-13 18:53:50,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 138 transitions, 425 flow, removed 14 selfloop flow, removed 9 redundant places. [2021-11-13 18:53:50,710 INFO L242 Difference]: Finished difference. Result has 122 places, 96 transitions, 236 flow [2021-11-13 18:53:50,711 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=236, PETRI_PLACES=122, PETRI_TRANSITIONS=96} [2021-11-13 18:53:50,711 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 2 predicate places. [2021-11-13 18:53:50,712 INFO L470 AbstractCegarLoop]: Abstraction has has 122 places, 96 transitions, 236 flow [2021-11-13 18:53:50,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 91.0) internal successors, (728), 8 states have internal predecessors, (728), 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) [2021-11-13 18:53:50,712 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:53:50,713 INFO L254 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, 1, 1, 1, 1] [2021-11-13 18:53:50,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:53:50,713 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-13 18:53:50,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:53:50,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1614329078, now seen corresponding path program 1 times [2021-11-13 18:53:50,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:53:50,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911790861] [2021-11-13 18:53:50,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:53:50,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:53:50,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:50,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:53:50,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:53:50,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911790861] [2021-11-13 18:53:50,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911790861] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:53:50,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:53:50,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 18:53:50,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196303962] [2021-11-13 18:53:50,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:53:50,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 18:53:50,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:53:50,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 18:53:50,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:53:50,873 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 115 [2021-11-13 18:53:50,876 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 96 transitions, 236 flow. Second operand has 8 states, 8 states have (on average 91.0) internal successors, (728), 8 states have internal predecessors, (728), 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) [2021-11-13 18:53:50,877 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:53:50,877 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 115 [2021-11-13 18:53:50,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:53:51,316 INFO L129 PetriNetUnfolder]: 282/703 cut-off events. [2021-11-13 18:53:51,316 INFO L130 PetriNetUnfolder]: For 326/326 co-relation queries the response was YES. [2021-11-13 18:53:51,319 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1509 conditions, 703 events. 282/703 cut-off events. For 326/326 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3498 event pairs, 90 based on Foata normal form. 16/682 useless extension candidates. Maximal degree in co-relation 1441. Up to 158 conditions per place. [2021-11-13 18:53:51,322 INFO L132 encePairwiseOnDemand]: 105/115 looper letters, 19 selfloop transitions, 6 changer transitions 36/136 dead transitions. [2021-11-13 18:53:51,322 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 136 transitions, 481 flow [2021-11-13 18:53:51,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 18:53:51,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-13 18:53:51,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1042 transitions. [2021-11-13 18:53:51,355 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8237154150197629 [2021-11-13 18:53:51,356 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1042 transitions. [2021-11-13 18:53:51,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1042 transitions. [2021-11-13 18:53:51,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:53:51,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1042 transitions. [2021-11-13 18:53:51,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 94.72727272727273) internal successors, (1042), 11 states have internal predecessors, (1042), 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) [2021-11-13 18:53:51,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 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) [2021-11-13 18:53:51,365 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 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) [2021-11-13 18:53:51,365 INFO L186 Difference]: Start difference. First operand has 122 places, 96 transitions, 236 flow. Second operand 11 states and 1042 transitions. [2021-11-13 18:53:51,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 136 transitions, 481 flow [2021-11-13 18:53:51,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 136 transitions, 418 flow, removed 23 selfloop flow, removed 11 redundant places. [2021-11-13 18:53:51,389 INFO L242 Difference]: Finished difference. Result has 123 places, 96 transitions, 240 flow [2021-11-13 18:53:51,389 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=240, PETRI_PLACES=123, PETRI_TRANSITIONS=96} [2021-11-13 18:53:51,392 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 3 predicate places. [2021-11-13 18:53:51,392 INFO L470 AbstractCegarLoop]: Abstraction has has 123 places, 96 transitions, 240 flow [2021-11-13 18:53:51,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 91.0) internal successors, (728), 8 states have internal predecessors, (728), 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) [2021-11-13 18:53:51,393 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:53:51,393 INFO L254 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:53:51,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 18:53:51,394 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-13 18:53:51,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:53:51,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1984301978, now seen corresponding path program 1 times [2021-11-13 18:53:51,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:53:51,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957671065] [2021-11-13 18:53:51,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:53:51,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:53:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:51,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:53:51,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:53:51,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957671065] [2021-11-13 18:53:51,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957671065] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:53:51,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:53:51,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:53:51,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623997171] [2021-11-13 18:53:51,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:53:51,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:53:51,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:53:51,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:53:51,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:53:51,521 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 115 [2021-11-13 18:53:51,522 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 96 transitions, 240 flow. Second operand has 6 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 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) [2021-11-13 18:53:51,522 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:53:51,522 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 115 [2021-11-13 18:53:51,522 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:53:51,936 INFO L129 PetriNetUnfolder]: 497/1202 cut-off events. [2021-11-13 18:53:51,936 INFO L130 PetriNetUnfolder]: For 119/119 co-relation queries the response was YES. [2021-11-13 18:53:51,941 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2222 conditions, 1202 events. 497/1202 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 7284 event pairs, 22 based on Foata normal form. 0/1168 useless extension candidates. Maximal degree in co-relation 2155. Up to 295 conditions per place. [2021-11-13 18:53:51,946 INFO L132 encePairwiseOnDemand]: 105/115 looper letters, 25 selfloop transitions, 6 changer transitions 42/150 dead transitions. [2021-11-13 18:53:51,946 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 150 transitions, 496 flow [2021-11-13 18:53:51,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:53:51,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-13 18:53:51,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 995 transitions. [2021-11-13 18:53:51,951 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8652173913043478 [2021-11-13 18:53:51,951 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 995 transitions. [2021-11-13 18:53:51,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 995 transitions. [2021-11-13 18:53:51,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:53:51,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 995 transitions. [2021-11-13 18:53:51,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 99.5) internal successors, (995), 10 states have internal predecessors, (995), 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) [2021-11-13 18:53:51,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 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) [2021-11-13 18:53:51,960 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 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) [2021-11-13 18:53:51,960 INFO L186 Difference]: Start difference. First operand has 123 places, 96 transitions, 240 flow. Second operand 10 states and 995 transitions. [2021-11-13 18:53:51,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 150 transitions, 496 flow [2021-11-13 18:53:51,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 150 transitions, 466 flow, removed 8 selfloop flow, removed 11 redundant places. [2021-11-13 18:53:51,966 INFO L242 Difference]: Finished difference. Result has 121 places, 98 transitions, 264 flow [2021-11-13 18:53:51,967 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=264, PETRI_PLACES=121, PETRI_TRANSITIONS=98} [2021-11-13 18:53:51,968 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 1 predicate places. [2021-11-13 18:53:51,968 INFO L470 AbstractCegarLoop]: Abstraction has has 121 places, 98 transitions, 264 flow [2021-11-13 18:53:51,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 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) [2021-11-13 18:53:51,968 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:53:51,969 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:53:51,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 18:53:51,969 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-13 18:53:51,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:53:51,970 INFO L85 PathProgramCache]: Analyzing trace with hash 468698123, now seen corresponding path program 1 times [2021-11-13 18:53:51,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:53:51,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233112889] [2021-11-13 18:53:51,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:53:51,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:53:52,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:53:52,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:53:52,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233112889] [2021-11-13 18:53:52,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233112889] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:53:52,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:53:52,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:53:52,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741497520] [2021-11-13 18:53:52,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:53:52,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:53:52,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:53:52,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:53:52,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:53:52,099 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 115 [2021-11-13 18:53:52,100 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 98 transitions, 264 flow. Second operand has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 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) [2021-11-13 18:53:52,100 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:53:52,101 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 115 [2021-11-13 18:53:52,101 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:53:52,463 INFO L129 PetriNetUnfolder]: 180/546 cut-off events. [2021-11-13 18:53:52,463 INFO L130 PetriNetUnfolder]: For 499/499 co-relation queries the response was YES. [2021-11-13 18:53:52,465 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1379 conditions, 546 events. 180/546 cut-off events. For 499/499 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2528 event pairs, 12 based on Foata normal form. 19/557 useless extension candidates. Maximal degree in co-relation 1316. Up to 133 conditions per place. [2021-11-13 18:53:52,468 INFO L132 encePairwiseOnDemand]: 106/115 looper letters, 28 selfloop transitions, 9 changer transitions 31/145 dead transitions. [2021-11-13 18:53:52,469 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 145 transitions, 623 flow [2021-11-13 18:53:52,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:53:52,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-13 18:53:52,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 990 transitions. [2021-11-13 18:53:52,474 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8608695652173913 [2021-11-13 18:53:52,474 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 990 transitions. [2021-11-13 18:53:52,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 990 transitions. [2021-11-13 18:53:52,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:53:52,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 990 transitions. [2021-11-13 18:53:52,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 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) [2021-11-13 18:53:52,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 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) [2021-11-13 18:53:52,483 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 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) [2021-11-13 18:53:52,484 INFO L186 Difference]: Start difference. First operand has 121 places, 98 transitions, 264 flow. Second operand 10 states and 990 transitions. [2021-11-13 18:53:52,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 145 transitions, 623 flow [2021-11-13 18:53:52,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 145 transitions, 599 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-11-13 18:53:52,491 INFO L242 Difference]: Finished difference. Result has 125 places, 101 transitions, 332 flow [2021-11-13 18:53:52,492 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=332, PETRI_PLACES=125, PETRI_TRANSITIONS=101} [2021-11-13 18:53:52,493 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 5 predicate places. [2021-11-13 18:53:52,493 INFO L470 AbstractCegarLoop]: Abstraction has has 125 places, 101 transitions, 332 flow [2021-11-13 18:53:52,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 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) [2021-11-13 18:53:52,494 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:53:52,494 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:53:52,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 18:53:52,496 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-13 18:53:52,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:53:52,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1174942414, now seen corresponding path program 1 times [2021-11-13 18:53:52,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:53:52,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323591069] [2021-11-13 18:53:52,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:53:52,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:53:52,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:53:52,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:53:52,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323591069] [2021-11-13 18:53:52,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323591069] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:53:52,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:53:52,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 18:53:52,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824300102] [2021-11-13 18:53:52,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:53:52,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 18:53:52,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:53:52,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 18:53:52,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:53:52,702 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 115 [2021-11-13 18:53:52,703 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 101 transitions, 332 flow. Second operand has 8 states, 8 states have (on average 94.0) internal successors, (752), 8 states have internal predecessors, (752), 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) [2021-11-13 18:53:52,704 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:53:52,704 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 115 [2021-11-13 18:53:52,704 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:53:52,979 INFO L129 PetriNetUnfolder]: 54/241 cut-off events. [2021-11-13 18:53:52,979 INFO L130 PetriNetUnfolder]: For 451/455 co-relation queries the response was YES. [2021-11-13 18:53:52,980 INFO L84 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 241 events. 54/241 cut-off events. For 451/455 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 694 event pairs, 8 based on Foata normal form. 7/242 useless extension candidates. Maximal degree in co-relation 626. Up to 49 conditions per place. [2021-11-13 18:53:52,982 INFO L132 encePairwiseOnDemand]: 106/115 looper letters, 19 selfloop transitions, 12 changer transitions 19/127 dead transitions. [2021-11-13 18:53:52,982 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 127 transitions, 586 flow [2021-11-13 18:53:52,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 18:53:52,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-13 18:53:52,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1064 transitions. [2021-11-13 18:53:52,987 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.841106719367589 [2021-11-13 18:53:52,988 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1064 transitions. [2021-11-13 18:53:52,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1064 transitions. [2021-11-13 18:53:52,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:53:52,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1064 transitions. [2021-11-13 18:53:52,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 96.72727272727273) internal successors, (1064), 11 states have internal predecessors, (1064), 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) [2021-11-13 18:53:52,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 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) [2021-11-13 18:53:52,997 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 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) [2021-11-13 18:53:52,998 INFO L186 Difference]: Start difference. First operand has 125 places, 101 transitions, 332 flow. Second operand 11 states and 1064 transitions. [2021-11-13 18:53:52,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 127 transitions, 586 flow [2021-11-13 18:53:53,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 127 transitions, 487 flow, removed 39 selfloop flow, removed 10 redundant places. [2021-11-13 18:53:53,005 INFO L242 Difference]: Finished difference. Result has 127 places, 101 transitions, 318 flow [2021-11-13 18:53:53,005 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=318, PETRI_PLACES=127, PETRI_TRANSITIONS=101} [2021-11-13 18:53:53,007 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 7 predicate places. [2021-11-13 18:53:53,008 INFO L470 AbstractCegarLoop]: Abstraction has has 127 places, 101 transitions, 318 flow [2021-11-13 18:53:53,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 94.0) internal successors, (752), 8 states have internal predecessors, (752), 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) [2021-11-13 18:53:53,009 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:53:53,009 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:53:53,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 18:53:53,009 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-13 18:53:53,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:53:53,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1247294163, now seen corresponding path program 1 times [2021-11-13 18:53:53,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:53:53,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491607551] [2021-11-13 18:53:53,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:53:53,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:53:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:53,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:53:53,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:53:53,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491607551] [2021-11-13 18:53:53,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491607551] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:53:53,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:53:53,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 18:53:53,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932804632] [2021-11-13 18:53:53,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:53:53,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:53:53,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:53:53,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:53:53,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:53:53,328 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 115 [2021-11-13 18:53:53,330 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 101 transitions, 318 flow. Second operand has 9 states, 9 states have (on average 91.33333333333333) internal successors, (822), 9 states have internal predecessors, (822), 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) [2021-11-13 18:53:53,330 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:53:53,330 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 115 [2021-11-13 18:53:53,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:53:53,582 INFO L129 PetriNetUnfolder]: 18/186 cut-off events. [2021-11-13 18:53:53,583 INFO L130 PetriNetUnfolder]: For 158/165 co-relation queries the response was YES. [2021-11-13 18:53:53,584 INFO L84 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 186 events. 18/186 cut-off events. For 158/165 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 456 event pairs, 0 based on Foata normal form. 1/185 useless extension candidates. Maximal degree in co-relation 347. Up to 25 conditions per place. [2021-11-13 18:53:53,585 INFO L132 encePairwiseOnDemand]: 106/115 looper letters, 21 selfloop transitions, 5 changer transitions 7/113 dead transitions. [2021-11-13 18:53:53,585 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 113 transitions, 412 flow [2021-11-13 18:53:53,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:53:53,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-13 18:53:53,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 924 transitions. [2021-11-13 18:53:53,589 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8034782608695652 [2021-11-13 18:53:53,590 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 924 transitions. [2021-11-13 18:53:53,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 924 transitions. [2021-11-13 18:53:53,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:53:53,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 924 transitions. [2021-11-13 18:53:53,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 92.4) internal successors, (924), 10 states have internal predecessors, (924), 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) [2021-11-13 18:53:53,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 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) [2021-11-13 18:53:53,598 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 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) [2021-11-13 18:53:53,599 INFO L186 Difference]: Start difference. First operand has 127 places, 101 transitions, 318 flow. Second operand 10 states and 924 transitions. [2021-11-13 18:53:53,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 113 transitions, 412 flow [2021-11-13 18:53:53,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 113 transitions, 330 flow, removed 22 selfloop flow, removed 15 redundant places. [2021-11-13 18:53:53,603 INFO L242 Difference]: Finished difference. Result has 123 places, 103 transitions, 267 flow [2021-11-13 18:53:53,604 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=267, PETRI_PLACES=123, PETRI_TRANSITIONS=103} [2021-11-13 18:53:53,605 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 3 predicate places. [2021-11-13 18:53:53,605 INFO L470 AbstractCegarLoop]: Abstraction has has 123 places, 103 transitions, 267 flow [2021-11-13 18:53:53,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 91.33333333333333) internal successors, (822), 9 states have internal predecessors, (822), 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) [2021-11-13 18:53:53,606 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:53:53,606 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:53:53,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 18:53:53,607 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-13 18:53:53,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:53:53,607 INFO L85 PathProgramCache]: Analyzing trace with hash 979701205, now seen corresponding path program 2 times [2021-11-13 18:53:53,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:53:53,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425287967] [2021-11-13 18:53:53,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:53:53,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:53:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:53,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:53:53,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:53:53,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425287967] [2021-11-13 18:53:53,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425287967] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:53:53,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:53:53,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-13 18:53:53,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267113408] [2021-11-13 18:53:53,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:53:53,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-13 18:53:53,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:53:53,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-13 18:53:53,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-13 18:53:53,913 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 115 [2021-11-13 18:53:53,915 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 103 transitions, 267 flow. Second operand has 11 states, 11 states have (on average 90.0) internal successors, (990), 11 states have internal predecessors, (990), 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) [2021-11-13 18:53:53,915 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:53:53,915 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 115 [2021-11-13 18:53:53,915 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:53:54,169 INFO L129 PetriNetUnfolder]: 20/218 cut-off events. [2021-11-13 18:53:54,169 INFO L130 PetriNetUnfolder]: For 23/26 co-relation queries the response was YES. [2021-11-13 18:53:54,170 INFO L84 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 218 events. 20/218 cut-off events. For 23/26 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 655 event pairs, 0 based on Foata normal form. 4/220 useless extension candidates. Maximal degree in co-relation 345. Up to 20 conditions per place. [2021-11-13 18:53:54,171 INFO L132 encePairwiseOnDemand]: 105/115 looper letters, 27 selfloop transitions, 5 changer transitions 7/118 dead transitions. [2021-11-13 18:53:54,171 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 118 transitions, 397 flow [2021-11-13 18:53:54,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:53:54,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-13 18:53:54,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 920 transitions. [2021-11-13 18:53:54,175 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8 [2021-11-13 18:53:54,175 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 920 transitions. [2021-11-13 18:53:54,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 920 transitions. [2021-11-13 18:53:54,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:53:54,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 920 transitions. [2021-11-13 18:53:54,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 92.0) internal successors, (920), 10 states have internal predecessors, (920), 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) [2021-11-13 18:53:54,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 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) [2021-11-13 18:53:54,183 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 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) [2021-11-13 18:53:54,184 INFO L186 Difference]: Start difference. First operand has 123 places, 103 transitions, 267 flow. Second operand 10 states and 920 transitions. [2021-11-13 18:53:54,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 118 transitions, 397 flow [2021-11-13 18:53:54,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 118 transitions, 370 flow, removed 11 selfloop flow, removed 6 redundant places. [2021-11-13 18:53:54,187 INFO L242 Difference]: Finished difference. Result has 126 places, 103 transitions, 275 flow [2021-11-13 18:53:54,188 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=275, PETRI_PLACES=126, PETRI_TRANSITIONS=103} [2021-11-13 18:53:54,189 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 6 predicate places. [2021-11-13 18:53:54,189 INFO L470 AbstractCegarLoop]: Abstraction has has 126 places, 103 transitions, 275 flow [2021-11-13 18:53:54,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 90.0) internal successors, (990), 11 states have internal predecessors, (990), 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) [2021-11-13 18:53:54,190 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:53:54,190 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:53:54,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-13 18:53:54,190 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-13 18:53:54,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:53:54,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1588045827, now seen corresponding path program 3 times [2021-11-13 18:53:54,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:53:54,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657651244] [2021-11-13 18:53:54,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:53:54,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:53:54,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:53:54,239 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:53:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:53:54,338 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:53:54,338 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 18:53:54,339 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2021-11-13 18:53:54,341 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2021-11-13 18:53:54,342 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 6 remaining) [2021-11-13 18:53:54,342 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 6 remaining) [2021-11-13 18:53:54,342 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 6 remaining) [2021-11-13 18:53:54,343 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2021-11-13 18:53:54,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-13 18:53:54,347 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:53:54,353 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-13 18:53:54,353 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 18:53:54,509 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getProgramExecutionAsString(CounterExampleResult.java:155) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getLongDescription(CounterExampleResult.java:134) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-13 18:53:54,512 INFO L158 Benchmark]: Toolchain (without parser) took 9930.64ms. Allocated memory was 100.7MB in the beginning and 199.2MB in the end (delta: 98.6MB). Free memory was 66.0MB in the beginning and 138.0MB in the end (delta: -72.0MB). Peak memory consumption was 113.2MB. Max. memory is 16.1GB. [2021-11-13 18:53:54,513 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 100.7MB. Free memory is still 54.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:53:54,513 INFO L158 Benchmark]: CACSL2BoogieTranslator took 622.34ms. Allocated memory is still 100.7MB. Free memory was 65.8MB in the beginning and 61.4MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 18:53:54,514 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.97ms. Allocated memory is still 100.7MB. Free memory was 61.4MB in the beginning and 58.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:53:54,514 INFO L158 Benchmark]: Boogie Preprocessor took 34.24ms. Allocated memory is still 100.7MB. Free memory was 58.9MB in the beginning and 56.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:53:54,515 INFO L158 Benchmark]: RCFGBuilder took 1353.17ms. Allocated memory was 100.7MB in the beginning and 136.3MB in the end (delta: 35.7MB). Free memory was 56.9MB in the beginning and 59.1MB in the end (delta: -2.3MB). Peak memory consumption was 37.0MB. Max. memory is 16.1GB. [2021-11-13 18:53:54,515 INFO L158 Benchmark]: TraceAbstraction took 7826.99ms. Allocated memory was 136.3MB in the beginning and 199.2MB in the end (delta: 62.9MB). Free memory was 59.1MB in the beginning and 138.0MB in the end (delta: -78.9MB). Peak memory consumption was 70.3MB. Max. memory is 16.1GB. [2021-11-13 18:53:54,517 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 100.7MB. Free memory is still 54.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 622.34ms. Allocated memory is still 100.7MB. Free memory was 65.8MB in the beginning and 61.4MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.97ms. Allocated memory is still 100.7MB. Free memory was 61.4MB in the beginning and 58.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.24ms. Allocated memory is still 100.7MB. Free memory was 58.9MB in the beginning and 56.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1353.17ms. Allocated memory was 100.7MB in the beginning and 136.3MB in the end (delta: 35.7MB). Free memory was 56.9MB in the beginning and 59.1MB in the end (delta: -2.3MB). Peak memory consumption was 37.0MB. Max. memory is 16.1GB. * TraceAbstraction took 7826.99ms. Allocated memory was 136.3MB in the beginning and 199.2MB in the end (delta: 62.9MB). Free memory was 59.1MB in the beginning and 138.0MB in the end (delta: -78.9MB). Peak memory consumption was 70.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-13 18:53:54,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe012_pso.oepc_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y --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 40c07d8b0b9ace0eb5e8218a2dd6fad770e2c982688ab22c161b74af49a1b102 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:53:57,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:53:57,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:53:57,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:53:57,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:53:57,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:53:57,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:53:57,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:53:57,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:53:57,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:53:57,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:53:57,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:53:57,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:53:57,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:53:57,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:53:57,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:53:57,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:53:57,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:53:57,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:53:57,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:53:57,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:53:57,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:53:57,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:53:57,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:53:57,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:53:57,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:53:57,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:53:57,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:53:57,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:53:57,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:53:57,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:53:57,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:53:57,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:53:57,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:53:57,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:53:57,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:53:57,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:53:57,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:53:57,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:53:57,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:53:57,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:53:57,208 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-13 18:53:57,255 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:53:57,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:53:57,256 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:53:57,257 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:53:57,257 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:53:57,258 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:53:57,259 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:53:57,260 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:53:57,260 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:53:57,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:53:57,261 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:53:57,262 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:53:57,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:53:57,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:53:57,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:53:57,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:53:57,263 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 18:53:57,263 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 18:53:57,264 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:53:57,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:53:57,264 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:53:57,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:53:57,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:53:57,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:53:57,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:53:57,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:53:57,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:53:57,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:53:57,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:53:57,266 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-13 18:53:57,267 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 18:53:57,267 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:53:57,267 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:53:57,268 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:53:57,268 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:53:57,268 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 18:53:57,268 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40c07d8b0b9ace0eb5e8218a2dd6fad770e2c982688ab22c161b74af49a1b102 [2021-11-13 18:53:57,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:53:57,717 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:53:57,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:53:57,724 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:53:57,725 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:53:57,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/pthread-wmm/safe012_pso.oepc_pso.opt_rmo.opt.i [2021-11-13 18:53:57,805 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/data/448d2e5f0/42d1c25057b24c14afa6d4af83d250aa/FLAG06a127834 [2021-11-13 18:53:58,498 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:53:58,499 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/sv-benchmarks/c/pthread-wmm/safe012_pso.oepc_pso.opt_rmo.opt.i [2021-11-13 18:53:58,515 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/data/448d2e5f0/42d1c25057b24c14afa6d4af83d250aa/FLAG06a127834 [2021-11-13 18:53:58,785 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/data/448d2e5f0/42d1c25057b24c14afa6d4af83d250aa [2021-11-13 18:53:58,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:53:58,789 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:53:58,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:53:58,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:53:58,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:53:58,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:53:58" (1/1) ... [2021-11-13 18:53:58,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@615c0e6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:58, skipping insertion in model container [2021-11-13 18:53:58,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:53:58" (1/1) ... [2021-11-13 18:53:58,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:53:58,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:53:59,007 WARN L228 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_4b433f69-4389-413a-a393-9090be42076a/sv-benchmarks/c/pthread-wmm/safe012_pso.oepc_pso.opt_rmo.opt.i[1009,1022] [2021-11-13 18:53:59,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:53:59,253 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:53:59,265 WARN L228 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_4b433f69-4389-413a-a393-9090be42076a/sv-benchmarks/c/pthread-wmm/safe012_pso.oepc_pso.opt_rmo.opt.i[1009,1022] [2021-11-13 18:53:59,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:53:59,376 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:53:59,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:59 WrapperNode [2021-11-13 18:53:59,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:53:59,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:53:59,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:53:59,379 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:53:59,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:59" (1/1) ... [2021-11-13 18:53:59,408 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:59" (1/1) ... [2021-11-13 18:53:59,439 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:53:59,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:53:59,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:53:59,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:53:59,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:59" (1/1) ... [2021-11-13 18:53:59,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:59" (1/1) ... [2021-11-13 18:53:59,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:59" (1/1) ... [2021-11-13 18:53:59,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:59" (1/1) ... [2021-11-13 18:53:59,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:59" (1/1) ... [2021-11-13 18:53:59,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:59" (1/1) ... [2021-11-13 18:53:59,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:59" (1/1) ... [2021-11-13 18:53:59,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:53:59,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:53:59,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:53:59,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:53:59,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:59" (1/1) ... [2021-11-13 18:53:59,504 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:53:59,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:53:59,529 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:53:59,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:53:59,591 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-13 18:53:59,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:53:59,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:53:59,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 18:53:59,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 18:53:59,592 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-13 18:53:59,592 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-13 18:53:59,593 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-13 18:53:59,593 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-13 18:53:59,593 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-13 18:53:59,593 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-13 18:53:59,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-13 18:53:59,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:53:59,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:53:59,596 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-13 18:54:00,721 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:54:00,722 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 18:54:00,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:54:00 BoogieIcfgContainer [2021-11-13 18:54:00,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:54:00,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:54:00,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:54:00,730 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:54:00,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:53:58" (1/3) ... [2021-11-13 18:54:00,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d6739f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:54:00, skipping insertion in model container [2021-11-13 18:54:00,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:59" (2/3) ... [2021-11-13 18:54:00,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d6739f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:54:00, skipping insertion in model container [2021-11-13 18:54:00,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:54:00" (3/3) ... [2021-11-13 18:54:00,734 INFO L111 eAbstractionObserver]: Analyzing ICFG safe012_pso.oepc_pso.opt_rmo.opt.i [2021-11-13 18:54:00,740 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-13 18:54:00,740 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:54:00,740 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-13 18:54:00,740 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-13 18:54:00,795 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,796 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,796 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,796 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,797 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,797 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,797 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,797 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,798 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,798 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,798 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,799 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,799 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,800 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,800 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,800 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,800 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,801 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,801 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,801 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,802 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,802 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,803 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,803 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,804 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,804 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,804 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,804 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,805 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,805 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,805 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,806 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,806 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,806 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,809 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,809 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,810 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,810 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,810 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,810 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,810 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,811 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,811 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,811 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,811 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,812 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,814 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,814 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,815 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,815 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,815 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,815 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,815 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,816 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,816 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,816 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,816 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,817 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,817 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,817 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,817 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,817 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,818 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,818 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,819 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,819 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,820 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,820 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,820 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,820 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,821 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,821 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,821 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,822 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,822 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,822 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,822 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,823 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,823 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,823 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,824 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,824 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,825 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,828 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,830 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,831 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,831 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,832 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,833 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,833 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,834 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,834 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,840 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,840 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,841 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,841 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,841 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,841 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,842 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,842 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,842 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,842 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,843 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,843 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,843 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,844 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,844 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,844 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,844 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,845 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,845 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,845 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,846 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,846 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,846 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,846 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,847 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,847 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,847 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,848 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,848 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,848 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,849 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,850 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,851 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,851 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,851 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,851 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,852 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,852 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,852 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,853 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,853 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,853 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,853 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,853 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,854 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,854 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,854 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,855 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,855 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,855 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,855 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,856 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,856 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,857 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,857 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,857 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,865 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,865 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,866 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,867 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,867 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,867 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,867 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,868 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,869 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,870 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,870 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,870 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,871 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,872 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,872 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,872 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,873 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,873 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,873 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,873 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,874 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,874 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,875 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,875 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,876 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,876 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,876 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,876 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,877 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,877 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,877 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,877 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,878 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,878 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,878 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,879 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,879 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,879 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,879 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,880 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,880 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,880 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,881 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,881 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,881 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,881 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,882 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,882 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,882 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:54:00,883 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-13 18:54:00,950 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:54:00,961 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:54:00,963 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-13 18:54:00,983 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 116 transitions, 247 flow [2021-11-13 18:54:01,063 INFO L129 PetriNetUnfolder]: 2/113 cut-off events. [2021-11-13 18:54:01,063 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-13 18:54:01,068 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2021-11-13 18:54:01,068 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 116 transitions, 247 flow [2021-11-13 18:54:01,075 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 113 transitions, 235 flow [2021-11-13 18:54:01,113 INFO L129 PetriNetUnfolder]: 0/60 cut-off events. [2021-11-13 18:54:01,114 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-13 18:54:01,114 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:54:01,114 INFO L254 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] [2021-11-13 18:54:01,115 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-13 18:54:01,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:54:01,129 INFO L85 PathProgramCache]: Analyzing trace with hash -596228423, now seen corresponding path program 1 times [2021-11-13 18:54:01,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:54:01,146 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1746347332] [2021-11-13 18:54:01,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:54:01,147 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:54:01,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:54:01,153 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:54:01,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 18:54:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:01,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 18:54:01,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:54:01,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:01,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:54:01,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:01,820 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:54:01,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1746347332] [2021-11-13 18:54:01,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1746347332] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:54:01,821 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:54:01,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 18:54:01,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065334177] [2021-11-13 18:54:01,824 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:54:01,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:54:01,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:54:01,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:54:01,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:54:01,869 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 116 [2021-11-13 18:54:01,874 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 113 transitions, 235 flow. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2021-11-13 18:54:01,874 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:54:01,874 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 116 [2021-11-13 18:54:01,876 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:54:02,106 INFO L129 PetriNetUnfolder]: 37/292 cut-off events. [2021-11-13 18:54:02,107 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-11-13 18:54:02,112 INFO L84 FinitePrefix]: Finished finitePrefix Result has 385 conditions, 292 events. 37/292 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1071 event pairs, 19 based on Foata normal form. 7/277 useless extension candidates. Maximal degree in co-relation 331. Up to 51 conditions per place. [2021-11-13 18:54:02,118 INFO L132 encePairwiseOnDemand]: 111/116 looper letters, 11 selfloop transitions, 2 changer transitions 0/113 dead transitions. [2021-11-13 18:54:02,118 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 113 transitions, 264 flow [2021-11-13 18:54:02,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:54:02,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-13 18:54:02,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 327 transitions. [2021-11-13 18:54:02,142 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9396551724137931 [2021-11-13 18:54:02,143 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 327 transitions. [2021-11-13 18:54:02,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 327 transitions. [2021-11-13 18:54:02,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:54:02,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 327 transitions. [2021-11-13 18:54:02,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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) [2021-11-13 18:54:02,167 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) [2021-11-13 18:54:02,168 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) [2021-11-13 18:54:02,170 INFO L186 Difference]: Start difference. First operand has 121 places, 113 transitions, 235 flow. Second operand 3 states and 327 transitions. [2021-11-13 18:54:02,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 113 transitions, 264 flow [2021-11-13 18:54:02,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 113 transitions, 260 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-11-13 18:54:02,182 INFO L242 Difference]: Finished difference. Result has 118 places, 109 transitions, 228 flow [2021-11-13 18:54:02,185 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=228, PETRI_PLACES=118, PETRI_TRANSITIONS=109} [2021-11-13 18:54:02,191 INFO L334 CegarLoopForPetriNet]: 121 programPoint places, -3 predicate places. [2021-11-13 18:54:02,192 INFO L470 AbstractCegarLoop]: Abstraction has has 118 places, 109 transitions, 228 flow [2021-11-13 18:54:02,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2021-11-13 18:54:02,192 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:54:02,193 INFO L254 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] [2021-11-13 18:54:02,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 18:54:02,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:54:02,411 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-13 18:54:02,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:54:02,412 INFO L85 PathProgramCache]: Analyzing trace with hash 316735768, now seen corresponding path program 1 times [2021-11-13 18:54:02,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:54:02,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1366529884] [2021-11-13 18:54:02,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:54:02,413 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:54:02,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:54:02,414 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:54:02,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 18:54:02,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:02,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 18:54:02,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:54:02,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:02,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:54:03,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:03,018 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:54:03,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1366529884] [2021-11-13 18:54:03,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1366529884] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:54:03,018 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:54:03,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7 [2021-11-13 18:54:03,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635397430] [2021-11-13 18:54:03,019 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:54:03,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:54:03,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:54:03,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:54:03,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:54:03,024 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 116 [2021-11-13 18:54:03,025 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 109 transitions, 228 flow. Second operand has 7 states, 7 states have (on average 95.42857142857143) internal successors, (668), 7 states have internal predecessors, (668), 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) [2021-11-13 18:54:03,025 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:54:03,026 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 116 [2021-11-13 18:54:03,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:54:03,766 INFO L129 PetriNetUnfolder]: 475/1106 cut-off events. [2021-11-13 18:54:03,767 INFO L130 PetriNetUnfolder]: For 64/64 co-relation queries the response was YES. [2021-11-13 18:54:03,770 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1970 conditions, 1106 events. 475/1106 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 5947 event pairs, 50 based on Foata normal form. 0/1078 useless extension candidates. Maximal degree in co-relation 1916. Up to 100 conditions per place. [2021-11-13 18:54:03,774 INFO L132 encePairwiseOnDemand]: 106/116 looper letters, 33 selfloop transitions, 9 changer transitions 64/196 dead transitions. [2021-11-13 18:54:03,775 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 196 transitions, 640 flow [2021-11-13 18:54:03,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 18:54:03,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-11-13 18:54:03,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1318 transitions. [2021-11-13 18:54:03,781 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8740053050397878 [2021-11-13 18:54:03,781 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1318 transitions. [2021-11-13 18:54:03,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1318 transitions. [2021-11-13 18:54:03,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:54:03,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1318 transitions. [2021-11-13 18:54:03,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 101.38461538461539) internal successors, (1318), 13 states have internal predecessors, (1318), 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) [2021-11-13 18:54:03,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 116.0) internal successors, (1624), 14 states have internal predecessors, (1624), 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) [2021-11-13 18:54:03,794 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 116.0) internal successors, (1624), 14 states have internal predecessors, (1624), 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) [2021-11-13 18:54:03,795 INFO L186 Difference]: Start difference. First operand has 118 places, 109 transitions, 228 flow. Second operand 13 states and 1318 transitions. [2021-11-13 18:54:03,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 196 transitions, 640 flow [2021-11-13 18:54:03,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 196 transitions, 616 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-13 18:54:03,801 INFO L242 Difference]: Finished difference. Result has 137 places, 114 transitions, 320 flow [2021-11-13 18:54:03,802 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=320, PETRI_PLACES=137, PETRI_TRANSITIONS=114} [2021-11-13 18:54:03,802 INFO L334 CegarLoopForPetriNet]: 121 programPoint places, 16 predicate places. [2021-11-13 18:54:03,803 INFO L470 AbstractCegarLoop]: Abstraction has has 137 places, 114 transitions, 320 flow [2021-11-13 18:54:03,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 95.42857142857143) internal successors, (668), 7 states have internal predecessors, (668), 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) [2021-11-13 18:54:03,804 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:54:03,804 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:54:03,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-13 18:54:04,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:54:04,017 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-13 18:54:04,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:54:04,018 INFO L85 PathProgramCache]: Analyzing trace with hash 714498927, now seen corresponding path program 1 times [2021-11-13 18:54:04,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:54:04,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1311248935] [2021-11-13 18:54:04,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:54:04,019 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:54:04,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:54:04,021 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:54:04,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 18:54:04,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 18:54:04,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:54:04,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:04,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:54:04,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:04,765 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:54:04,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1311248935] [2021-11-13 18:54:04,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1311248935] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:54:04,766 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:54:04,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 11 [2021-11-13 18:54:04,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481969787] [2021-11-13 18:54:04,766 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:54:04,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-13 18:54:04,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:54:04,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-13 18:54:04,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-11-13 18:54:04,770 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 116 [2021-11-13 18:54:04,772 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 114 transitions, 320 flow. Second operand has 11 states, 11 states have (on average 95.45454545454545) internal successors, (1050), 11 states have internal predecessors, (1050), 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) [2021-11-13 18:54:04,772 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:54:04,772 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 116 [2021-11-13 18:54:04,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:54:05,245 INFO L129 PetriNetUnfolder]: 86/336 cut-off events. [2021-11-13 18:54:05,246 INFO L130 PetriNetUnfolder]: For 397/397 co-relation queries the response was YES. [2021-11-13 18:54:05,248 INFO L84 FinitePrefix]: Finished finitePrefix Result has 798 conditions, 336 events. 86/336 cut-off events. For 397/397 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1324 event pairs, 17 based on Foata normal form. 8/334 useless extension candidates. Maximal degree in co-relation 759. Up to 49 conditions per place. [2021-11-13 18:54:05,250 INFO L132 encePairwiseOnDemand]: 107/116 looper letters, 23 selfloop transitions, 12 changer transitions 33/146 dead transitions. [2021-11-13 18:54:05,250 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 146 transitions, 601 flow [2021-11-13 18:54:05,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 18:54:05,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-13 18:54:05,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1174 transitions. [2021-11-13 18:54:05,256 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8433908045977011 [2021-11-13 18:54:05,256 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1174 transitions. [2021-11-13 18:54:05,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1174 transitions. [2021-11-13 18:54:05,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:54:05,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1174 transitions. [2021-11-13 18:54:05,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 97.83333333333333) internal successors, (1174), 12 states have internal predecessors, (1174), 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) [2021-11-13 18:54:05,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 116.0) internal successors, (1508), 13 states have internal predecessors, (1508), 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) [2021-11-13 18:54:05,269 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 116.0) internal successors, (1508), 13 states have internal predecessors, (1508), 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) [2021-11-13 18:54:05,270 INFO L186 Difference]: Start difference. First operand has 137 places, 114 transitions, 320 flow. Second operand 12 states and 1174 transitions. [2021-11-13 18:54:05,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 146 transitions, 601 flow [2021-11-13 18:54:05,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 146 transitions, 515 flow, removed 38 selfloop flow, removed 7 redundant places. [2021-11-13 18:54:05,290 INFO L242 Difference]: Finished difference. Result has 139 places, 102 transitions, 306 flow [2021-11-13 18:54:05,290 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=306, PETRI_PLACES=139, PETRI_TRANSITIONS=102} [2021-11-13 18:54:05,291 INFO L334 CegarLoopForPetriNet]: 121 programPoint places, 18 predicate places. [2021-11-13 18:54:05,291 INFO L470 AbstractCegarLoop]: Abstraction has has 139 places, 102 transitions, 306 flow [2021-11-13 18:54:05,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 95.45454545454545) internal successors, (1050), 11 states have internal predecessors, (1050), 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) [2021-11-13 18:54:05,292 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:54:05,292 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:54:05,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 18:54:05,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:54:05,493 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-13 18:54:05,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:54:05,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1684120240, now seen corresponding path program 1 times [2021-11-13 18:54:05,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:54:05,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [968608871] [2021-11-13 18:54:05,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:54:05,496 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:54:05,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:54:05,497 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:54:05,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 18:54:05,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:05,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 18:54:05,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:54:05,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:05,904 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:54:06,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:06,208 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:54:06,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [968608871] [2021-11-13 18:54:06,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [968608871] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:54:06,209 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:54:06,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-13 18:54:06,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257866461] [2021-11-13 18:54:06,210 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:54:06,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 18:54:06,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:54:06,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 18:54:06,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-13 18:54:06,216 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 116 [2021-11-13 18:54:06,218 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 102 transitions, 306 flow. Second operand has 12 states, 12 states have (on average 95.83333333333333) internal successors, (1150), 12 states have internal predecessors, (1150), 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) [2021-11-13 18:54:06,218 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:54:06,218 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 116 [2021-11-13 18:54:06,218 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:54:06,494 INFO L129 PetriNetUnfolder]: 67/329 cut-off events. [2021-11-13 18:54:06,495 INFO L130 PetriNetUnfolder]: For 205/215 co-relation queries the response was YES. [2021-11-13 18:54:06,497 INFO L84 FinitePrefix]: Finished finitePrefix Result has 690 conditions, 329 events. 67/329 cut-off events. For 205/215 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1361 event pairs, 18 based on Foata normal form. 1/317 useless extension candidates. Maximal degree in co-relation 642. Up to 40 conditions per place. [2021-11-13 18:54:06,499 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 19 selfloop transitions, 4 changer transitions 8/115 dead transitions. [2021-11-13 18:54:06,499 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 115 transitions, 394 flow [2021-11-13 18:54:06,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:54:06,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-13 18:54:06,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 683 transitions. [2021-11-13 18:54:06,503 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8411330049261084 [2021-11-13 18:54:06,503 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 683 transitions. [2021-11-13 18:54:06,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 683 transitions. [2021-11-13 18:54:06,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:54:06,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 683 transitions. [2021-11-13 18:54:06,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 97.57142857142857) internal successors, (683), 7 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) [2021-11-13 18:54:06,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 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) [2021-11-13 18:54:06,512 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 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) [2021-11-13 18:54:06,512 INFO L186 Difference]: Start difference. First operand has 139 places, 102 transitions, 306 flow. Second operand 7 states and 683 transitions. [2021-11-13 18:54:06,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 115 transitions, 394 flow [2021-11-13 18:54:06,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 115 transitions, 319 flow, removed 19 selfloop flow, removed 15 redundant places. [2021-11-13 18:54:06,519 INFO L242 Difference]: Finished difference. Result has 118 places, 102 transitions, 251 flow [2021-11-13 18:54:06,519 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=251, PETRI_PLACES=118, PETRI_TRANSITIONS=102} [2021-11-13 18:54:06,521 INFO L334 CegarLoopForPetriNet]: 121 programPoint places, -3 predicate places. [2021-11-13 18:54:06,521 INFO L470 AbstractCegarLoop]: Abstraction has has 118 places, 102 transitions, 251 flow [2021-11-13 18:54:06,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 95.83333333333333) internal successors, (1150), 12 states have internal predecessors, (1150), 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) [2021-11-13 18:54:06,522 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:54:06,523 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:54:06,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 18:54:06,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:54:06,739 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-13 18:54:06,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:54:06,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1164367886, now seen corresponding path program 2 times [2021-11-13 18:54:06,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:54:06,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524978443] [2021-11-13 18:54:06,741 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 18:54:06,741 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:54:06,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:54:06,742 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:54:06,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 18:54:06,900 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-13 18:54:06,901 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 18:54:06,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-13 18:54:06,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:54:07,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:07,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:54:08,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:08,565 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:54:08,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524978443] [2021-11-13 18:54:08,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524978443] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:54:08,565 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:54:08,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 19 [2021-11-13 18:54:08,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196983065] [2021-11-13 18:54:08,566 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:54:08,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-13 18:54:08,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:54:08,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-13 18:54:08,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2021-11-13 18:54:08,571 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 116 [2021-11-13 18:54:08,573 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 102 transitions, 251 flow. Second operand has 19 states, 19 states have (on average 89.36842105263158) internal successors, (1698), 19 states have internal predecessors, (1698), 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) [2021-11-13 18:54:08,573 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:54:08,573 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 116 [2021-11-13 18:54:08,574 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:54:08,910 INFO L129 PetriNetUnfolder]: 22/200 cut-off events. [2021-11-13 18:54:08,910 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-11-13 18:54:08,910 INFO L84 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 200 events. 22/200 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 513 event pairs, 1 based on Foata normal form. 1/197 useless extension candidates. Maximal degree in co-relation 306. Up to 19 conditions per place. [2021-11-13 18:54:08,911 INFO L132 encePairwiseOnDemand]: 106/116 looper letters, 23 selfloop transitions, 5 changer transitions 8/114 dead transitions. [2021-11-13 18:54:08,912 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 114 transitions, 357 flow [2021-11-13 18:54:08,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 18:54:08,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-13 18:54:08,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 994 transitions. [2021-11-13 18:54:08,919 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7789968652037618 [2021-11-13 18:54:08,919 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 994 transitions. [2021-11-13 18:54:08,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 994 transitions. [2021-11-13 18:54:08,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:54:08,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 994 transitions. [2021-11-13 18:54:08,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 90.36363636363636) internal successors, (994), 11 states have internal predecessors, (994), 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) [2021-11-13 18:54:08,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 116.0) internal successors, (1392), 12 states have internal predecessors, (1392), 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) [2021-11-13 18:54:08,928 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 116.0) internal successors, (1392), 12 states have internal predecessors, (1392), 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) [2021-11-13 18:54:08,928 INFO L186 Difference]: Start difference. First operand has 118 places, 102 transitions, 251 flow. Second operand 11 states and 994 transitions. [2021-11-13 18:54:08,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 114 transitions, 357 flow [2021-11-13 18:54:08,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 114 transitions, 335 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-11-13 18:54:08,932 INFO L242 Difference]: Finished difference. Result has 124 places, 102 transitions, 257 flow [2021-11-13 18:54:08,932 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=257, PETRI_PLACES=124, PETRI_TRANSITIONS=102} [2021-11-13 18:54:08,933 INFO L334 CegarLoopForPetriNet]: 121 programPoint places, 3 predicate places. [2021-11-13 18:54:08,933 INFO L470 AbstractCegarLoop]: Abstraction has has 124 places, 102 transitions, 257 flow [2021-11-13 18:54:08,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 89.36842105263158) internal successors, (1698), 19 states have internal predecessors, (1698), 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) [2021-11-13 18:54:08,935 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:54:08,935 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:54:08,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 18:54:09,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:54:09,154 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-13 18:54:09,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:54:09,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1690393128, now seen corresponding path program 3 times [2021-11-13 18:54:09,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:54:09,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [937023540] [2021-11-13 18:54:09,155 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 18:54:09,156 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:54:09,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:54:09,157 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:54:09,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 18:54:09,307 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-13 18:54:09,307 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 18:54:09,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 18:54:09,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:54:09,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:09,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:54:09,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:09,852 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:54:09,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [937023540] [2021-11-13 18:54:09,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [937023540] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:54:09,852 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:54:09,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-13 18:54:09,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551887064] [2021-11-13 18:54:09,853 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:54:09,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 18:54:09,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:54:09,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 18:54:09,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-13 18:54:09,857 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 116 [2021-11-13 18:54:09,859 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 102 transitions, 257 flow. Second operand has 12 states, 12 states have (on average 95.83333333333333) internal successors, (1150), 12 states have internal predecessors, (1150), 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) [2021-11-13 18:54:09,859 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:54:09,859 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 116 [2021-11-13 18:54:09,859 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:54:10,052 INFO L129 PetriNetUnfolder]: 34/249 cut-off events. [2021-11-13 18:54:10,052 INFO L130 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2021-11-13 18:54:10,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 423 conditions, 249 events. 34/249 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 910 event pairs, 9 based on Foata normal form. 1/243 useless extension candidates. Maximal degree in co-relation 411. Up to 23 conditions per place. [2021-11-13 18:54:10,055 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 15 selfloop transitions, 4 changer transitions 11/114 dead transitions. [2021-11-13 18:54:10,055 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 114 transitions, 359 flow [2021-11-13 18:54:10,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:54:10,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-13 18:54:10,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 682 transitions. [2021-11-13 18:54:10,058 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8399014778325123 [2021-11-13 18:54:10,058 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 682 transitions. [2021-11-13 18:54:10,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 682 transitions. [2021-11-13 18:54:10,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:54:10,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 682 transitions. [2021-11-13 18:54:10,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 97.42857142857143) internal successors, (682), 7 states have internal predecessors, (682), 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) [2021-11-13 18:54:10,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 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) [2021-11-13 18:54:10,065 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 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) [2021-11-13 18:54:10,065 INFO L186 Difference]: Start difference. First operand has 124 places, 102 transitions, 257 flow. Second operand 7 states and 682 transitions. [2021-11-13 18:54:10,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 114 transitions, 359 flow [2021-11-13 18:54:10,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 114 transitions, 331 flow, removed 7 selfloop flow, removed 9 redundant places. [2021-11-13 18:54:10,069 INFO L242 Difference]: Finished difference. Result has 120 places, 102 transitions, 259 flow [2021-11-13 18:54:10,070 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=259, PETRI_PLACES=120, PETRI_TRANSITIONS=102} [2021-11-13 18:54:10,071 INFO L334 CegarLoopForPetriNet]: 121 programPoint places, -1 predicate places. [2021-11-13 18:54:10,071 INFO L470 AbstractCegarLoop]: Abstraction has has 120 places, 102 transitions, 259 flow [2021-11-13 18:54:10,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 95.83333333333333) internal successors, (1150), 12 states have internal predecessors, (1150), 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) [2021-11-13 18:54:10,072 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:54:10,073 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:54:10,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 18:54:10,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:54:10,291 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-13 18:54:10,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:54:10,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1022373984, now seen corresponding path program 4 times [2021-11-13 18:54:10,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:54:10,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [422172775] [2021-11-13 18:54:10,293 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-13 18:54:10,293 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:54:10,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:54:10,294 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:54:10,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 18:54:10,487 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-13 18:54:10,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-11-13 18:54:10,487 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:54:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:54:10,800 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-13 18:54:10,800 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 18:54:10,801 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2021-11-13 18:54:10,803 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2021-11-13 18:54:10,803 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 6 remaining) [2021-11-13 18:54:10,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 6 remaining) [2021-11-13 18:54:10,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 6 remaining) [2021-11-13 18:54:10,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2021-11-13 18:54:10,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-13 18:54:11,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:54:11,030 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2021-11-13 18:54:11,035 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-13 18:54:11,035 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 18:54:11,191 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getProgramExecutionAsString(CounterExampleResult.java:155) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getLongDescription(CounterExampleResult.java:134) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-13 18:54:11,200 INFO L158 Benchmark]: Toolchain (without parser) took 12409.74ms. Allocated memory was 54.5MB in the beginning and 148.9MB in the end (delta: 94.4MB). Free memory was 29.1MB in the beginning and 86.0MB in the end (delta: -56.9MB). Peak memory consumption was 89.2MB. Max. memory is 16.1GB. [2021-11-13 18:54:11,201 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 54.5MB. Free memory was 34.4MB in the beginning and 34.4MB in the end (delta: 37.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:54:11,203 INFO L158 Benchmark]: CACSL2BoogieTranslator took 586.86ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 28.9MB in the beginning and 43.7MB in the end (delta: -14.8MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2021-11-13 18:54:11,205 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.16ms. Allocated memory is still 69.2MB. Free memory was 43.7MB in the beginning and 41.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:54:11,211 INFO L158 Benchmark]: Boogie Preprocessor took 53.90ms. Allocated memory is still 69.2MB. Free memory was 41.0MB in the beginning and 38.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:54:11,212 INFO L158 Benchmark]: RCFGBuilder took 1229.74ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 38.6MB in the beginning and 65.2MB in the end (delta: -26.6MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2021-11-13 18:54:11,212 INFO L158 Benchmark]: TraceAbstraction took 10471.95ms. Allocated memory was 90.2MB in the beginning and 148.9MB in the end (delta: 58.7MB). Free memory was 64.7MB in the beginning and 86.0MB in the end (delta: -21.4MB). Peak memory consumption was 88.2MB. Max. memory is 16.1GB. [2021-11-13 18:54:11,214 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 54.5MB. Free memory was 34.4MB in the beginning and 34.4MB in the end (delta: 37.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 586.86ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 28.9MB in the beginning and 43.7MB in the end (delta: -14.8MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.16ms. Allocated memory is still 69.2MB. Free memory was 43.7MB in the beginning and 41.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.90ms. Allocated memory is still 69.2MB. Free memory was 41.0MB in the beginning and 38.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1229.74ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 38.6MB in the beginning and 65.2MB in the end (delta: -26.6MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * TraceAbstraction took 10471.95ms. Allocated memory was 90.2MB in the beginning and 148.9MB in the end (delta: 58.7MB). Free memory was 64.7MB in the beginning and 86.0MB in the end (delta: -21.4MB). Peak memory consumption was 88.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-13 18:54:11,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b433f69-4389-413a-a393-9090be42076a/bin/uautomizer-YU5uOKAj3y/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: ERROR: ExceptionOrErrorResult: NullPointerException: null