./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b1ed44-5194-4309-aef7-9a41755b4a52/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b1ed44-5194-4309-aef7-9a41755b4a52/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b1ed44-5194-4309-aef7-9a41755b4a52/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b1ed44-5194-4309-aef7-9a41755b4a52/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b1ed44-5194-4309-aef7-9a41755b4a52/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b1ed44-5194-4309-aef7-9a41755b4a52/bin/uautomizer-J5u9QxTXDZ --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 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 11:03:49,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:03:49,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:03:49,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:03:49,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:03:49,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:03:49,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:03:49,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:03:49,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:03:49,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:03:49,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:03:49,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:03:49,291 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:03:49,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:03:49,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:03:49,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:03:49,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:03:49,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:03:49,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:03:49,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:03:49,314 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:03:49,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:03:49,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:03:49,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:03:49,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:03:49,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:03:49,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:03:49,336 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:03:49,336 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:03:49,338 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:03:49,338 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:03:49,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:03:49,342 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:03:49,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:03:49,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:03:49,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:03:49,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:03:49,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:03:49,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:03:49,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:03:49,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:03:49,356 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b1ed44-5194-4309-aef7-9a41755b4a52/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 11:03:49,409 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:03:49,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:03:49,410 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:03:49,410 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:03:49,411 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 11:03:49,412 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 11:03:49,412 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:03:49,413 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:03:49,413 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:03:49,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:03:49,414 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 11:03:49,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 11:03:49,415 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 11:03:49,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:03:49,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 11:03:49,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 11:03:49,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 11:03:49,416 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 11:03:49,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 11:03:49,417 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:03:49,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 11:03:49,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:03:49,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:03:49,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 11:03:49,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:03:49,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:03:49,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 11:03:49,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 11:03:49,421 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 11:03:49,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 11:03:49,421 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 11:03:49,421 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 11:03:49,422 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 11:03:49,422 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_87b1ed44-5194-4309-aef7-9a41755b4a52/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b1ed44-5194-4309-aef7-9a41755b4a52/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 [2022-10-17 11:03:49,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:03:49,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:03:49,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:03:49,760 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:03:49,761 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:03:49,762 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b1ed44-5194-4309-aef7-9a41755b4a52/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2022-10-17 11:03:49,837 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b1ed44-5194-4309-aef7-9a41755b4a52/bin/uautomizer-J5u9QxTXDZ/data/807db766b/65ebe117e3c74bcf8ffb738fb754c6cf/FLAGaedd5a6e9 [2022-10-17 11:03:50,362 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:03:50,362 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b1ed44-5194-4309-aef7-9a41755b4a52/sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2022-10-17 11:03:50,373 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b1ed44-5194-4309-aef7-9a41755b4a52/bin/uautomizer-J5u9QxTXDZ/data/807db766b/65ebe117e3c74bcf8ffb738fb754c6cf/FLAGaedd5a6e9 [2022-10-17 11:03:50,674 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b1ed44-5194-4309-aef7-9a41755b4a52/bin/uautomizer-J5u9QxTXDZ/data/807db766b/65ebe117e3c74bcf8ffb738fb754c6cf [2022-10-17 11:03:50,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:03:50,678 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:03:50,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:03:50,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:03:50,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:03:50,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:03:50" (1/1) ... [2022-10-17 11:03:50,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6157c6da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:50, skipping insertion in model container [2022-10-17 11:03:50,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:03:50" (1/1) ... [2022-10-17 11:03:50,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:03:50,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:03:50,979 WARN L230 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_87b1ed44-5194-4309-aef7-9a41755b4a52/sv-benchmarks/c/weaver/parallel-barrier.wvr.c[4722,4735] [2022-10-17 11:03:50,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:03:50,993 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 11:03:51,065 WARN L230 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_87b1ed44-5194-4309-aef7-9a41755b4a52/sv-benchmarks/c/weaver/parallel-barrier.wvr.c[4722,4735] [2022-10-17 11:03:51,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:03:51,094 INFO L208 MainTranslator]: Completed translation [2022-10-17 11:03:51,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:51 WrapperNode [2022-10-17 11:03:51,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:03:51,098 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 11:03:51,098 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 11:03:51,099 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 11:03:51,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:51" (1/1) ... [2022-10-17 11:03:51,141 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:51" (1/1) ... [2022-10-17 11:03:51,184 INFO L138 Inliner]: procedures = 25, calls = 98, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 253 [2022-10-17 11:03:51,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 11:03:51,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 11:03:51,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 11:03:51,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 11:03:51,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:51" (1/1) ... [2022-10-17 11:03:51,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:51" (1/1) ... [2022-10-17 11:03:51,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:51" (1/1) ... [2022-10-17 11:03:51,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:51" (1/1) ... [2022-10-17 11:03:51,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:51" (1/1) ... [2022-10-17 11:03:51,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:51" (1/1) ... [2022-10-17 11:03:51,217 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:51" (1/1) ... [2022-10-17 11:03:51,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:51" (1/1) ... [2022-10-17 11:03:51,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 11:03:51,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 11:03:51,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 11:03:51,226 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 11:03:51,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:51" (1/1) ... [2022-10-17 11:03:51,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:03:51,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b1ed44-5194-4309-aef7-9a41755b4a52/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:03:51,275 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b1ed44-5194-4309-aef7-9a41755b4a52/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 11:03:51,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b1ed44-5194-4309-aef7-9a41755b4a52/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 11:03:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 11:03:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 11:03:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 11:03:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 11:03:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-10-17 11:03:51,322 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-10-17 11:03:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-10-17 11:03:51,323 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-10-17 11:03:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-10-17 11:03:51,323 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-10-17 11:03:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-10-17 11:03:51,324 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-10-17 11:03:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 11:03:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-10-17 11:03:51,324 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-10-17 11:03:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-10-17 11:03:51,324 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-10-17 11:03:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-10-17 11:03:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-10-17 11:03:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 11:03:51,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 11:03:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 11:03:51,327 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-17 11:03:51,455 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 11:03:51,457 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 11:03:51,980 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 11:03:52,095 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 11:03:52,095 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 11:03:52,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:03:52 BoogieIcfgContainer [2022-10-17 11:03:52,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 11:03:52,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 11:03:52,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 11:03:52,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 11:03:52,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 11:03:50" (1/3) ... [2022-10-17 11:03:52,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b748a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:03:52, skipping insertion in model container [2022-10-17 11:03:52,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:51" (2/3) ... [2022-10-17 11:03:52,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b748a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:03:52, skipping insertion in model container [2022-10-17 11:03:52,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:03:52" (3/3) ... [2022-10-17 11:03:52,109 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2022-10-17 11:03:52,119 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-17 11:03:52,131 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 11:03:52,132 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 11:03:52,132 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-17 11:03:52,393 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-10-17 11:03:52,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 246 places, 235 transitions, 542 flow [2022-10-17 11:03:52,644 INFO L130 PetriNetUnfolder]: 8/207 cut-off events. [2022-10-17 11:03:52,644 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-10-17 11:03:52,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 207 events. 8/207 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 240 event pairs, 0 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 177. Up to 3 conditions per place. [2022-10-17 11:03:52,658 INFO L82 GeneralOperation]: Start removeDead. Operand has 246 places, 235 transitions, 542 flow [2022-10-17 11:03:52,677 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 209 places, 198 transitions, 444 flow [2022-10-17 11:03:52,691 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 11:03:52,698 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@712e68e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 11:03:52,698 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-10-17 11:03:52,765 INFO L130 PetriNetUnfolder]: 8/197 cut-off events. [2022-10-17 11:03:52,766 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-10-17 11:03:52,766 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 11:03:52,767 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:03:52,768 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-10-17 11:03:52,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:03:52,774 INFO L85 PathProgramCache]: Analyzing trace with hash 2027569251, now seen corresponding path program 1 times [2022-10-17 11:03:52,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:03:52,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220982839] [2022-10-17 11:03:52,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:03:52,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:03:53,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:03:54,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:03:54,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:03:54,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220982839] [2022-10-17 11:03:54,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220982839] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:03:54,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:03:54,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 11:03:54,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931833901] [2022-10-17 11:03:54,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:03:54,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 11:03:54,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:03:54,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 11:03:54,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:03:54,385 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 239 [2022-10-17 11:03:54,397 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 198 transitions, 444 flow. Second operand has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:54,397 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 11:03:54,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 239 [2022-10-17 11:03:54,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 11:03:55,083 INFO L130 PetriNetUnfolder]: 300/1180 cut-off events. [2022-10-17 11:03:55,084 INFO L131 PetriNetUnfolder]: For 362/362 co-relation queries the response was YES. [2022-10-17 11:03:55,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2011 conditions, 1180 events. 300/1180 cut-off events. For 362/362 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6508 event pairs, 155 based on Foata normal form. 49/1100 useless extension candidates. Maximal degree in co-relation 1815. Up to 289 conditions per place. [2022-10-17 11:03:55,109 INFO L137 encePairwiseOnDemand]: 228/239 looper letters, 48 selfloop transitions, 6 changer transitions 3/221 dead transitions. [2022-10-17 11:03:55,109 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 221 transitions, 663 flow [2022-10-17 11:03:55,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 11:03:55,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-10-17 11:03:55,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1053 transitions. [2022-10-17 11:03:55,140 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8811715481171548 [2022-10-17 11:03:55,141 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1053 transitions. [2022-10-17 11:03:55,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1053 transitions. [2022-10-17 11:03:55,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 11:03:55,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1053 transitions. [2022-10-17 11:03:55,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 210.6) internal successors, (1053), 5 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:55,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:55,175 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:55,178 INFO L175 Difference]: Start difference. First operand has 209 places, 198 transitions, 444 flow. Second operand 5 states and 1053 transitions. [2022-10-17 11:03:55,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 221 transitions, 663 flow [2022-10-17 11:03:55,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 221 transitions, 589 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-10-17 11:03:55,199 INFO L231 Difference]: Finished difference. Result has 202 places, 191 transitions, 416 flow [2022-10-17 11:03:55,202 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=416, PETRI_PLACES=202, PETRI_TRANSITIONS=191} [2022-10-17 11:03:55,207 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, -7 predicate places. [2022-10-17 11:03:55,208 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 191 transitions, 416 flow [2022-10-17 11:03:55,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:55,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 11:03:55,210 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:03:55,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 11:03:55,211 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-10-17 11:03:55,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:03:55,213 INFO L85 PathProgramCache]: Analyzing trace with hash -2124591546, now seen corresponding path program 1 times [2022-10-17 11:03:55,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:03:55,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166915791] [2022-10-17 11:03:55,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:03:55,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:03:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:03:56,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:03:56,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:03:56,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166915791] [2022-10-17 11:03:56,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166915791] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:03:56,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:03:56,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 11:03:56,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021953991] [2022-10-17 11:03:56,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:03:56,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 11:03:56,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:03:56,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 11:03:56,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:03:56,066 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 239 [2022-10-17 11:03:56,068 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 191 transitions, 416 flow. Second operand has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:56,069 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 11:03:56,069 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 239 [2022-10-17 11:03:56,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 11:03:56,581 INFO L130 PetriNetUnfolder]: 311/1247 cut-off events. [2022-10-17 11:03:56,581 INFO L131 PetriNetUnfolder]: For 153/153 co-relation queries the response was YES. [2022-10-17 11:03:56,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1923 conditions, 1247 events. 311/1247 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 7355 event pairs, 127 based on Foata normal form. 11/1166 useless extension candidates. Maximal degree in co-relation 1604. Up to 327 conditions per place. [2022-10-17 11:03:56,599 INFO L137 encePairwiseOnDemand]: 232/239 looper letters, 49 selfloop transitions, 6 changer transitions 0/219 dead transitions. [2022-10-17 11:03:56,600 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 219 transitions, 604 flow [2022-10-17 11:03:56,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 11:03:56,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-10-17 11:03:56,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1046 transitions. [2022-10-17 11:03:56,605 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8753138075313808 [2022-10-17 11:03:56,605 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1046 transitions. [2022-10-17 11:03:56,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1046 transitions. [2022-10-17 11:03:56,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 11:03:56,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1046 transitions. [2022-10-17 11:03:56,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 209.2) internal successors, (1046), 5 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:56,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:56,617 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:56,618 INFO L175 Difference]: Start difference. First operand has 202 places, 191 transitions, 416 flow. Second operand 5 states and 1046 transitions. [2022-10-17 11:03:56,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 219 transitions, 604 flow [2022-10-17 11:03:56,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 219 transitions, 592 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-10-17 11:03:56,630 INFO L231 Difference]: Finished difference. Result has 200 places, 191 transitions, 422 flow [2022-10-17 11:03:56,630 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=422, PETRI_PLACES=200, PETRI_TRANSITIONS=191} [2022-10-17 11:03:56,631 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, -9 predicate places. [2022-10-17 11:03:56,632 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 191 transitions, 422 flow [2022-10-17 11:03:56,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:56,633 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 11:03:56,634 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:03:56,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 11:03:56,634 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-10-17 11:03:56,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:03:56,638 INFO L85 PathProgramCache]: Analyzing trace with hash 864293, now seen corresponding path program 1 times [2022-10-17 11:03:56,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:03:56,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682345803] [2022-10-17 11:03:56,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:03:56,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:03:56,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:03:57,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:03:57,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:03:57,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682345803] [2022-10-17 11:03:57,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682345803] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:03:57,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:03:57,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 11:03:57,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203524313] [2022-10-17 11:03:57,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:03:57,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 11:03:57,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:03:57,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 11:03:57,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:03:57,252 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 239 [2022-10-17 11:03:57,254 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 191 transitions, 422 flow. Second operand has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:57,255 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 11:03:57,255 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 239 [2022-10-17 11:03:57,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 11:03:57,655 INFO L130 PetriNetUnfolder]: 264/1019 cut-off events. [2022-10-17 11:03:57,656 INFO L131 PetriNetUnfolder]: For 176/176 co-relation queries the response was YES. [2022-10-17 11:03:57,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1602 conditions, 1019 events. 264/1019 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 5632 event pairs, 109 based on Foata normal form. 20/941 useless extension candidates. Maximal degree in co-relation 1364. Up to 258 conditions per place. [2022-10-17 11:03:57,670 INFO L137 encePairwiseOnDemand]: 232/239 looper letters, 48 selfloop transitions, 6 changer transitions 1/218 dead transitions. [2022-10-17 11:03:57,672 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 218 transitions, 619 flow [2022-10-17 11:03:57,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 11:03:57,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-10-17 11:03:57,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1046 transitions. [2022-10-17 11:03:57,677 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8753138075313808 [2022-10-17 11:03:57,677 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1046 transitions. [2022-10-17 11:03:57,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1046 transitions. [2022-10-17 11:03:57,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 11:03:57,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1046 transitions. [2022-10-17 11:03:57,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 209.2) internal successors, (1046), 5 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:57,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:57,688 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:57,688 INFO L175 Difference]: Start difference. First operand has 200 places, 191 transitions, 422 flow. Second operand 5 states and 1046 transitions. [2022-10-17 11:03:57,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 218 transitions, 619 flow [2022-10-17 11:03:57,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 218 transitions, 607 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-10-17 11:03:57,700 INFO L231 Difference]: Finished difference. Result has 201 places, 190 transitions, 426 flow [2022-10-17 11:03:57,701 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=426, PETRI_PLACES=201, PETRI_TRANSITIONS=190} [2022-10-17 11:03:57,704 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, -8 predicate places. [2022-10-17 11:03:57,704 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 190 transitions, 426 flow [2022-10-17 11:03:57,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:57,706 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 11:03:57,706 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:03:57,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 11:03:57,707 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-10-17 11:03:57,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:03:57,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1823949991, now seen corresponding path program 1 times [2022-10-17 11:03:57,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:03:57,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940706008] [2022-10-17 11:03:57,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:03:57,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:03:57,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:03:58,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:03:58,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:03:58,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940706008] [2022-10-17 11:03:58,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940706008] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:03:58,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:03:58,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 11:03:58,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596321929] [2022-10-17 11:03:58,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:03:58,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 11:03:58,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:03:58,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 11:03:58,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:03:58,347 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 239 [2022-10-17 11:03:58,359 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 190 transitions, 426 flow. Second operand has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:58,359 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 11:03:58,359 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 239 [2022-10-17 11:03:58,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 11:03:58,772 INFO L130 PetriNetUnfolder]: 274/1058 cut-off events. [2022-10-17 11:03:58,773 INFO L131 PetriNetUnfolder]: For 205/211 co-relation queries the response was YES. [2022-10-17 11:03:58,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1727 conditions, 1058 events. 274/1058 cut-off events. For 205/211 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 5930 event pairs, 114 based on Foata normal form. 16/977 useless extension candidates. Maximal degree in co-relation 756. Up to 292 conditions per place. [2022-10-17 11:03:58,788 INFO L137 encePairwiseOnDemand]: 232/239 looper letters, 49 selfloop transitions, 6 changer transitions 0/218 dead transitions. [2022-10-17 11:03:58,789 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 218 transitions, 626 flow [2022-10-17 11:03:58,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 11:03:58,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-10-17 11:03:58,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1046 transitions. [2022-10-17 11:03:58,799 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8753138075313808 [2022-10-17 11:03:58,799 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1046 transitions. [2022-10-17 11:03:58,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1046 transitions. [2022-10-17 11:03:58,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 11:03:58,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1046 transitions. [2022-10-17 11:03:58,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 209.2) internal successors, (1046), 5 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:58,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:58,813 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:58,814 INFO L175 Difference]: Start difference. First operand has 201 places, 190 transitions, 426 flow. Second operand 5 states and 1046 transitions. [2022-10-17 11:03:58,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 218 transitions, 626 flow [2022-10-17 11:03:58,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 218 transitions, 614 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-10-17 11:03:58,825 INFO L231 Difference]: Finished difference. Result has 201 places, 190 transitions, 432 flow [2022-10-17 11:03:58,826 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=432, PETRI_PLACES=201, PETRI_TRANSITIONS=190} [2022-10-17 11:03:58,828 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, -8 predicate places. [2022-10-17 11:03:58,828 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 190 transitions, 432 flow [2022-10-17 11:03:58,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:58,829 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 11:03:58,830 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:03:58,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 11:03:58,830 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-10-17 11:03:58,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:03:58,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1201062752, now seen corresponding path program 1 times [2022-10-17 11:03:58,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:03:58,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993552556] [2022-10-17 11:03:58,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:03:58,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:03:58,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:01,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:04:01,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:04:01,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993552556] [2022-10-17 11:04:01,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993552556] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:04:01,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:04:01,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-10-17 11:04:01,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370711488] [2022-10-17 11:04:01,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:04:01,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-17 11:04:01,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:04:01,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-17 11:04:01,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2022-10-17 11:04:01,258 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-10-17 11:04:01,264 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 190 transitions, 432 flow. Second operand has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:04:01,264 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 11:04:01,265 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-10-17 11:04:01,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 11:04:06,091 INFO L130 PetriNetUnfolder]: 3471/7068 cut-off events. [2022-10-17 11:04:06,092 INFO L131 PetriNetUnfolder]: For 1355/1355 co-relation queries the response was YES. [2022-10-17 11:04:06,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13670 conditions, 7068 events. 3471/7068 cut-off events. For 1355/1355 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 51039 event pairs, 818 based on Foata normal form. 1/6485 useless extension candidates. Maximal degree in co-relation 12572. Up to 2858 conditions per place. [2022-10-17 11:04:06,188 INFO L137 encePairwiseOnDemand]: 216/239 looper letters, 214 selfloop transitions, 59 changer transitions 23/425 dead transitions. [2022-10-17 11:04:06,188 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 425 transitions, 1654 flow [2022-10-17 11:04:06,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-17 11:04:06,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-10-17 11:04:06,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 4861 transitions. [2022-10-17 11:04:06,208 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7263897190675433 [2022-10-17 11:04:06,208 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 4861 transitions. [2022-10-17 11:04:06,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 4861 transitions. [2022-10-17 11:04:06,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 11:04:06,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 4861 transitions. [2022-10-17 11:04:06,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 173.60714285714286) internal successors, (4861), 28 states have internal predecessors, (4861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:04:06,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 239.0) internal successors, (6931), 29 states have internal predecessors, (6931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:04:06,252 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 239.0) internal successors, (6931), 29 states have internal predecessors, (6931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:04:06,252 INFO L175 Difference]: Start difference. First operand has 201 places, 190 transitions, 432 flow. Second operand 28 states and 4861 transitions. [2022-10-17 11:04:06,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 425 transitions, 1654 flow [2022-10-17 11:04:06,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 425 transitions, 1618 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-10-17 11:04:06,272 INFO L231 Difference]: Finished difference. Result has 238 places, 248 transitions, 750 flow [2022-10-17 11:04:06,273 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=750, PETRI_PLACES=238, PETRI_TRANSITIONS=248} [2022-10-17 11:04:06,274 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, 29 predicate places. [2022-10-17 11:04:06,274 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 248 transitions, 750 flow [2022-10-17 11:04:06,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:04:06,277 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 11:04:06,277 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:04:06,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 11:04:06,277 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-10-17 11:04:06,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:06,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1878004040, now seen corresponding path program 1 times [2022-10-17 11:04:06,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:06,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508879748] [2022-10-17 11:04:06,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:06,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:09,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:04:09,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:04:09,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508879748] [2022-10-17 11:04:09,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508879748] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:04:09,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:04:09,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-10-17 11:04:09,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468125855] [2022-10-17 11:04:09,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:04:09,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-10-17 11:04:09,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:04:09,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-10-17 11:04:09,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=779, Unknown=0, NotChecked=0, Total=870 [2022-10-17 11:04:09,189 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 239 [2022-10-17 11:04:09,196 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 248 transitions, 750 flow. Second operand has 30 states, 30 states have (on average 157.1) internal successors, (4713), 30 states have internal predecessors, (4713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:04:09,197 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 11:04:09,197 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 239 [2022-10-17 11:04:09,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 11:04:17,398 INFO L130 PetriNetUnfolder]: 5128/10677 cut-off events. [2022-10-17 11:04:17,399 INFO L131 PetriNetUnfolder]: For 5403/5403 co-relation queries the response was YES. [2022-10-17 11:04:17,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25245 conditions, 10677 events. 5128/10677 cut-off events. For 5403/5403 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 83574 event pairs, 802 based on Foata normal form. 1/9858 useless extension candidates. Maximal degree in co-relation 25209. Up to 3439 conditions per place.