./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix029_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i --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_6480cea3-360f-457a-9768-cd6294bc3965/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480cea3-360f-457a-9768-cd6294bc3965/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_6480cea3-360f-457a-9768-cd6294bc3965/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480cea3-360f-457a-9768-cd6294bc3965/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix029_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480cea3-360f-457a-9768-cd6294bc3965/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_6480cea3-360f-457a-9768-cd6294bc3965/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 bf24bf121ebc3ec235b4f1c2077ea9383a107f5a378f2adee68bd8bbb156b315 --- 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 10:30:29,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:30:29,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:30:29,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:30:29,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:30:29,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:30:29,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:30:29,304 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:30:29,306 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:30:29,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:30:29,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:30:29,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:30:29,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:30:29,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:30:29,313 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:30:29,315 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:30:29,316 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:30:29,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:30:29,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:30:29,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:30:29,323 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:30:29,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:30:29,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:30:29,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:30:29,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:30:29,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:30:29,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:30:29,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:30:29,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:30:29,336 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:30:29,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:30:29,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:30:29,338 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:30:29,339 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:30:29,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:30:29,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:30:29,342 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:30:29,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:30:29,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:30:29,344 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:30:29,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:30:29,354 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480cea3-360f-457a-9768-cd6294bc3965/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:30:29,411 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:30:29,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:30:29,413 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:30:29,413 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:30:29,415 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:30:29,415 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:30:29,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:30:29,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:30:29,416 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:30:29,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:30:29,418 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:30:29,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:30:29,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:30:29,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:30:29,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:30:29,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:30:29,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:30:29,419 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:30:29,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:30:29,420 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:30:29,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:30:29,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:30:29,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:30:29,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:30:29,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:30:29,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:30:29,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:30:29,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:30:29,424 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:30:29,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:30:29,424 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:30:29,424 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:30:29,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:30:29,425 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_6480cea3-360f-457a-9768-cd6294bc3965/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480cea3-360f-457a-9768-cd6294bc3965/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf24bf121ebc3ec235b4f1c2077ea9383a107f5a378f2adee68bd8bbb156b315 [2022-10-17 10:30:29,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:30:29,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:30:29,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:30:29,725 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:30:29,726 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:30:29,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480cea3-360f-457a-9768-cd6294bc3965/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/pthread-wmm/mix029_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i [2022-10-17 10:30:29,809 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480cea3-360f-457a-9768-cd6294bc3965/bin/uautomizer-J5u9QxTXDZ/data/c61a8bbf3/c8a697d0ea624a109036679ee80e4ff8/FLAGf1ea91ff7 [2022-10-17 10:30:30,327 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:30:30,327 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480cea3-360f-457a-9768-cd6294bc3965/sv-benchmarks/c/pthread-wmm/mix029_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i [2022-10-17 10:30:30,351 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480cea3-360f-457a-9768-cd6294bc3965/bin/uautomizer-J5u9QxTXDZ/data/c61a8bbf3/c8a697d0ea624a109036679ee80e4ff8/FLAGf1ea91ff7 [2022-10-17 10:30:30,601 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480cea3-360f-457a-9768-cd6294bc3965/bin/uautomizer-J5u9QxTXDZ/data/c61a8bbf3/c8a697d0ea624a109036679ee80e4ff8 [2022-10-17 10:30:30,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:30:30,606 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:30:30,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:30:30,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:30:30,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:30:30,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:30:30" (1/1) ... [2022-10-17 10:30:30,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1865b497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:30, skipping insertion in model container [2022-10-17 10:30:30,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:30:30" (1/1) ... [2022-10-17 10:30:30,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:30:30,693 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:30:30,907 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_6480cea3-360f-457a-9768-cd6294bc3965/sv-benchmarks/c/pthread-wmm/mix029_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i[986,999] [2022-10-17 10:30:31,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:30:31,120 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:30:31,131 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_6480cea3-360f-457a-9768-cd6294bc3965/sv-benchmarks/c/pthread-wmm/mix029_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i[986,999] [2022-10-17 10:30:31,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:30:31,230 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:30:31,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:31 WrapperNode [2022-10-17 10:30:31,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:30:31,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:30:31,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:30:31,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:30:31,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:31" (1/1) ... [2022-10-17 10:30:31,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:31" (1/1) ... [2022-10-17 10:30:31,332 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 192 [2022-10-17 10:30:31,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:30:31,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:30:31,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:30:31,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:30:31,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:31" (1/1) ... [2022-10-17 10:30:31,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:31" (1/1) ... [2022-10-17 10:30:31,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:31" (1/1) ... [2022-10-17 10:30:31,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:31" (1/1) ... [2022-10-17 10:30:31,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:31" (1/1) ... [2022-10-17 10:30:31,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:31" (1/1) ... [2022-10-17 10:30:31,366 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:31" (1/1) ... [2022-10-17 10:30:31,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:31" (1/1) ... [2022-10-17 10:30:31,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:30:31,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:30:31,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:30:31,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:30:31,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:31" (1/1) ... [2022-10-17 10:30:31,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:30:31,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480cea3-360f-457a-9768-cd6294bc3965/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:30:31,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480cea3-360f-457a-9768-cd6294bc3965/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:30:31,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480cea3-360f-457a-9768-cd6294bc3965/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:30:31,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:30:31,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-10-17 10:30:31,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:30:31,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:30:31,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:30:31,465 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-10-17 10:30:31,465 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-10-17 10:30:31,465 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-10-17 10:30:31,465 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-10-17 10:30:31,466 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-10-17 10:30:31,466 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-10-17 10:30:31,466 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-10-17 10:30:31,466 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-10-17 10:30:31,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:30:31,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-10-17 10:30:31,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:30:31,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:30:31,468 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 10:30:31,666 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:30:31,671 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:30:32,408 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:30:32,940 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:30:32,940 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:30:32,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:30:32 BoogieIcfgContainer [2022-10-17 10:30:32,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:30:32,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:30:32,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:30:32,956 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:30:32,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:30:30" (1/3) ... [2022-10-17 10:30:32,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ecdb447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:30:32, skipping insertion in model container [2022-10-17 10:30:32,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:31" (2/3) ... [2022-10-17 10:30:32,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ecdb447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:30:32, skipping insertion in model container [2022-10-17 10:30:32,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:30:32" (3/3) ... [2022-10-17 10:30:32,963 INFO L112 eAbstractionObserver]: Analyzing ICFG mix029_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i [2022-10-17 10:30:32,973 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-17 10:30:32,984 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:30:32,984 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-17 10:30:32,984 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-17 10:30:33,085 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-17 10:30:33,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 148 places, 137 transitions, 294 flow [2022-10-17 10:30:33,226 INFO L130 PetriNetUnfolder]: 2/133 cut-off events. [2022-10-17 10:30:33,226 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:30:33,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 133 events. 2/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 68 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2022-10-17 10:30:33,231 INFO L82 GeneralOperation]: Start removeDead. Operand has 148 places, 137 transitions, 294 flow [2022-10-17 10:30:33,240 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 133 transitions, 278 flow [2022-10-17 10:30:33,249 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:30:33,256 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;@4223264f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:30:33,257 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-10-17 10:30:33,268 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2022-10-17 10:30:33,269 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:30:33,269 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:30:33,269 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] [2022-10-17 10:30:33,270 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:30:33,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:33,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1338494467, now seen corresponding path program 1 times [2022-10-17 10:30:33,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:33,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108007174] [2022-10-17 10:30:33,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:33,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:34,018 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 10:30:34,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:34,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108007174] [2022-10-17 10:30:34,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108007174] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:30:34,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:30:34,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:30:34,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258806376] [2022-10-17 10:30:34,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:30:34,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:30:34,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:34,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:30:34,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:30:34,066 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 137 [2022-10-17 10:30:34,070 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 133 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:30:34,070 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:30:34,070 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 137 [2022-10-17 10:30:34,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:30:34,420 INFO L130 PetriNetUnfolder]: 162/620 cut-off events. [2022-10-17 10:30:34,420 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-10-17 10:30:34,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 926 conditions, 620 events. 162/620 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3378 event pairs, 132 based on Foata normal form. 41/619 useless extension candidates. Maximal degree in co-relation 869. Up to 191 conditions per place. [2022-10-17 10:30:34,431 INFO L137 encePairwiseOnDemand]: 132/137 looper letters, 18 selfloop transitions, 2 changer transitions 0/137 dead transitions. [2022-10-17 10:30:34,431 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 137 transitions, 335 flow [2022-10-17 10:30:34,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:30:34,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:30:34,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2022-10-17 10:30:34,447 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9440389294403893 [2022-10-17 10:30:34,448 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 388 transitions. [2022-10-17 10:30:34,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 388 transitions. [2022-10-17 10:30:34,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:30:34,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 388 transitions. [2022-10-17 10:30:34,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 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 10:30:34,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 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 10:30:34,465 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 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 10:30:34,467 INFO L175 Difference]: Start difference. First operand has 144 places, 133 transitions, 278 flow. Second operand 3 states and 388 transitions. [2022-10-17 10:30:34,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 137 transitions, 335 flow [2022-10-17 10:30:34,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 137 transitions, 328 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-10-17 10:30:34,476 INFO L231 Difference]: Finished difference. Result has 140 places, 129 transitions, 270 flow [2022-10-17 10:30:34,478 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=270, PETRI_PLACES=140, PETRI_TRANSITIONS=129} [2022-10-17 10:30:34,482 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, -4 predicate places. [2022-10-17 10:30:34,483 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 129 transitions, 270 flow [2022-10-17 10:30:34,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:30:34,483 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:30:34,484 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] [2022-10-17 10:30:34,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:30:34,484 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:30:34,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:34,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1196194587, now seen corresponding path program 1 times [2022-10-17 10:30:34,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:34,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375393489] [2022-10-17 10:30:34,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:34,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:34,991 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 10:30:34,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:34,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375393489] [2022-10-17 10:30:34,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375393489] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:30:34,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:30:34,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:30:34,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082768328] [2022-10-17 10:30:34,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:30:34,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:30:34,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:34,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:30:34,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:30:35,004 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 137 [2022-10-17 10:30:35,011 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 129 transitions, 270 flow. Second operand has 7 states, 7 states have (on average 106.28571428571429) internal successors, (744), 7 states have internal predecessors, (744), 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 10:30:35,012 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:30:35,012 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 137 [2022-10-17 10:30:35,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:30:42,660 INFO L130 PetriNetUnfolder]: 14219/30878 cut-off events. [2022-10-17 10:30:42,660 INFO L131 PetriNetUnfolder]: For 1254/1254 co-relation queries the response was YES. [2022-10-17 10:30:42,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51791 conditions, 30878 events. 14219/30878 cut-off events. For 1254/1254 co-relation queries the response was YES. Maximal size of possible extension queue 1301. Compared 323750 event pairs, 1088 based on Foata normal form. 0/30311 useless extension candidates. Maximal degree in co-relation 51731. Up to 6589 conditions per place. [2022-10-17 10:30:42,912 INFO L137 encePairwiseOnDemand]: 123/137 looper letters, 47 selfloop transitions, 12 changer transitions 128/274 dead transitions. [2022-10-17 10:30:42,912 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 274 transitions, 938 flow [2022-10-17 10:30:42,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-17 10:30:42,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-10-17 10:30:42,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1529 transitions. [2022-10-17 10:30:42,919 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.858506457046603 [2022-10-17 10:30:42,919 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1529 transitions. [2022-10-17 10:30:42,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1529 transitions. [2022-10-17 10:30:42,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:30:42,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1529 transitions. [2022-10-17 10:30:42,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 117.61538461538461) internal successors, (1529), 13 states have internal predecessors, (1529), 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 10:30:42,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 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 10:30:42,934 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 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 10:30:42,934 INFO L175 Difference]: Start difference. First operand has 140 places, 129 transitions, 270 flow. Second operand 13 states and 1529 transitions. [2022-10-17 10:30:42,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 274 transitions, 938 flow [2022-10-17 10:30:42,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 274 transitions, 912 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-10-17 10:30:42,945 INFO L231 Difference]: Finished difference. Result has 162 places, 124 transitions, 370 flow [2022-10-17 10:30:42,945 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=370, PETRI_PLACES=162, PETRI_TRANSITIONS=124} [2022-10-17 10:30:42,946 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 18 predicate places. [2022-10-17 10:30:42,946 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 124 transitions, 370 flow [2022-10-17 10:30:42,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.28571428571429) internal successors, (744), 7 states have internal predecessors, (744), 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 10:30:42,947 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:30:42,947 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] [2022-10-17 10:30:42,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:30:42,948 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:30:42,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:42,951 INFO L85 PathProgramCache]: Analyzing trace with hash -992043932, now seen corresponding path program 1 times [2022-10-17 10:30:42,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:42,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701822161] [2022-10-17 10:30:42,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:42,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:43,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:43,497 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 10:30:43,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:43,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701822161] [2022-10-17 10:30:43,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701822161] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:30:43,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:30:43,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:30:43,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265179424] [2022-10-17 10:30:43,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:30:43,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:30:43,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:43,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:30:43,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:30:43,505 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 137 [2022-10-17 10:30:43,506 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 124 transitions, 370 flow. Second operand has 7 states, 7 states have (on average 106.42857142857143) internal successors, (745), 7 states have internal predecessors, (745), 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 10:30:43,507 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:30:43,507 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 137 [2022-10-17 10:30:43,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:30:47,873 INFO L130 PetriNetUnfolder]: 9086/15497 cut-off events. [2022-10-17 10:30:47,873 INFO L131 PetriNetUnfolder]: For 23626/23626 co-relation queries the response was YES. [2022-10-17 10:30:47,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45631 conditions, 15497 events. 9086/15497 cut-off events. For 23626/23626 co-relation queries the response was YES. Maximal size of possible extension queue 808. Compared 120439 event pairs, 1313 based on Foata normal form. 364/15654 useless extension candidates. Maximal degree in co-relation 45555. Up to 3573 conditions per place. [2022-10-17 10:30:48,021 INFO L137 encePairwiseOnDemand]: 126/137 looper letters, 53 selfloop transitions, 9 changer transitions 112/261 dead transitions. [2022-10-17 10:30:48,022 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 261 transitions, 1394 flow [2022-10-17 10:30:48,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-17 10:30:48,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-10-17 10:30:48,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1504 transitions. [2022-10-17 10:30:48,029 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8444693992139247 [2022-10-17 10:30:48,029 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1504 transitions. [2022-10-17 10:30:48,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1504 transitions. [2022-10-17 10:30:48,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:30:48,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1504 transitions. [2022-10-17 10:30:48,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.6923076923077) internal successors, (1504), 13 states have internal predecessors, (1504), 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 10:30:48,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 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 10:30:48,043 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 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 10:30:48,043 INFO L175 Difference]: Start difference. First operand has 162 places, 124 transitions, 370 flow. Second operand 13 states and 1504 transitions. [2022-10-17 10:30:48,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 261 transitions, 1394 flow [2022-10-17 10:30:48,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 261 transitions, 1370 flow, removed 12 selfloop flow, removed 3 redundant places. [2022-10-17 10:30:48,299 INFO L231 Difference]: Finished difference. Result has 160 places, 129 transitions, 478 flow [2022-10-17 10:30:48,300 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=478, PETRI_PLACES=160, PETRI_TRANSITIONS=129} [2022-10-17 10:30:48,302 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 16 predicate places. [2022-10-17 10:30:48,303 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 129 transitions, 478 flow [2022-10-17 10:30:48,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.42857142857143) internal successors, (745), 7 states have internal predecessors, (745), 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 10:30:48,304 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:30:48,304 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] [2022-10-17 10:30:48,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:30:48,305 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:30:48,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:48,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1172282758, now seen corresponding path program 1 times [2022-10-17 10:30:48,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:48,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455175860] [2022-10-17 10:30:48,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:48,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:48,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:48,677 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 10:30:48,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:48,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455175860] [2022-10-17 10:30:48,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455175860] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:30:48,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:30:48,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:30:48,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853353492] [2022-10-17 10:30:48,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:30:48,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:30:48,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:48,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:30:48,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:30:48,687 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 137 [2022-10-17 10:30:48,689 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 129 transitions, 478 flow. Second operand has 6 states, 6 states have (on average 112.0) internal successors, (672), 6 states have internal predecessors, (672), 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 10:30:48,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:30:48,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 137 [2022-10-17 10:30:48,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:30:57,574 INFO L130 PetriNetUnfolder]: 19375/33883 cut-off events. [2022-10-17 10:30:57,574 INFO L131 PetriNetUnfolder]: For 38930/53890 co-relation queries the response was YES. [2022-10-17 10:30:57,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79099 conditions, 33883 events. 19375/33883 cut-off events. For 38930/53890 co-relation queries the response was YES. Maximal size of possible extension queue 2062. Compared 308225 event pairs, 1609 based on Foata normal form. 294/31786 useless extension candidates. Maximal degree in co-relation 79016. Up to 10690 conditions per place. [2022-10-17 10:30:57,969 INFO L137 encePairwiseOnDemand]: 126/137 looper letters, 93 selfloop transitions, 20 changer transitions 0/218 dead transitions. [2022-10-17 10:30:57,969 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 218 transitions, 1000 flow [2022-10-17 10:30:57,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-17 10:30:57,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-10-17 10:30:57,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1207 transitions. [2022-10-17 10:30:57,974 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.881021897810219 [2022-10-17 10:30:57,975 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1207 transitions. [2022-10-17 10:30:57,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1207 transitions. [2022-10-17 10:30:57,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:30:57,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1207 transitions. [2022-10-17 10:30:57,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 120.7) internal successors, (1207), 10 states have internal predecessors, (1207), 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 10:30:57,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 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 10:30:57,988 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 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 10:30:57,988 INFO L175 Difference]: Start difference. First operand has 160 places, 129 transitions, 478 flow. Second operand 10 states and 1207 transitions. [2022-10-17 10:30:57,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 218 transitions, 1000 flow [2022-10-17 10:30:58,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 218 transitions, 979 flow, removed 9 selfloop flow, removed 4 redundant places. [2022-10-17 10:30:58,220 INFO L231 Difference]: Finished difference. Result has 162 places, 147 transitions, 600 flow [2022-10-17 10:30:58,222 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=600, PETRI_PLACES=162, PETRI_TRANSITIONS=147} [2022-10-17 10:30:58,222 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 18 predicate places. [2022-10-17 10:30:58,223 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 147 transitions, 600 flow [2022-10-17 10:30:58,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.0) internal successors, (672), 6 states have internal predecessors, (672), 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 10:30:58,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:30:58,223 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] [2022-10-17 10:30:58,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:30:58,223 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:30:58,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:58,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1248433930, now seen corresponding path program 1 times [2022-10-17 10:30:58,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:58,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771889371] [2022-10-17 10:30:58,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:58,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:58,557 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 10:30:58,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:58,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771889371] [2022-10-17 10:30:58,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771889371] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:30:58,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:30:58,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:30:58,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297734952] [2022-10-17 10:30:58,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:30:58,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:30:58,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:58,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:30:58,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:30:58,561 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 137 [2022-10-17 10:30:58,562 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 147 transitions, 600 flow. Second operand has 7 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 states have internal predecessors, (748), 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 10:30:58,562 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:30:58,563 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 137 [2022-10-17 10:30:58,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand