./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe029_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c8a1d7-d12d-4644-9664-b1943671c075/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c8a1d7-d12d-4644-9664-b1943671c075/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c8a1d7-d12d-4644-9664-b1943671c075/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c8a1d7-d12d-4644-9664-b1943671c075/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe029_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c8a1d7-d12d-4644-9664-b1943671c075/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c8a1d7-d12d-4644-9664-b1943671c075/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef851e22a0a98929f1b90876fcac5ec793e10efa4691f239ca948c8dc39b94fd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:34:19,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:34:19,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:34:19,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:34:19,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:34:19,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:34:19,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:34:19,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:34:19,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:34:19,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:34:19,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:34:19,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:34:19,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:34:19,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:34:19,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:34:19,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:34:19,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:34:19,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:34:19,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:34:19,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:34:19,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:34:19,257 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:34:19,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:34:19,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:34:19,271 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:34:19,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:34:19,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:34:19,275 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:34:19,275 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:34:19,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:34:19,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:34:19,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:34:19,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:34:19,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:34:19,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:34:19,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:34:19,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:34:19,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:34:19,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:34:19,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:34:19,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:34:19,288 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c8a1d7-d12d-4644-9664-b1943671c075/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 09:34:19,329 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:34:19,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:34:19,330 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:34:19,330 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:34:19,331 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:34:19,331 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:34:19,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:34:19,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:34:19,332 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:34:19,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:34:19,334 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:34:19,334 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:34:19,334 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:34:19,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:34:19,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:34:19,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:34:19,335 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:34:19,335 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:34:19,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:34:19,335 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:34:19,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:34:19,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:34:19,336 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:34:19,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:34:19,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:34:19,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:34:19,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:34:19,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:34:19,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:34:19,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:34:19,338 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:34:19,339 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:34:19,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:34:19,339 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_f8c8a1d7-d12d-4644-9664-b1943671c075/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c8a1d7-d12d-4644-9664-b1943671c075/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef851e22a0a98929f1b90876fcac5ec793e10efa4691f239ca948c8dc39b94fd [2022-11-20 09:34:19,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:34:19,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:34:19,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:34:19,694 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:34:19,694 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:34:19,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c8a1d7-d12d-4644-9664-b1943671c075/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-wmm/safe029_tso.i [2022-11-20 09:34:22,792 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:34:23,143 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:34:23,149 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c8a1d7-d12d-4644-9664-b1943671c075/sv-benchmarks/c/pthread-wmm/safe029_tso.i [2022-11-20 09:34:23,167 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c8a1d7-d12d-4644-9664-b1943671c075/bin/uautomizer-ug76WZFUDN/data/fc475cb34/f56fb00c6b5348bf919069a5821850f2/FLAG111707f87 [2022-11-20 09:34:23,183 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c8a1d7-d12d-4644-9664-b1943671c075/bin/uautomizer-ug76WZFUDN/data/fc475cb34/f56fb00c6b5348bf919069a5821850f2 [2022-11-20 09:34:23,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:34:23,188 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:34:23,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:34:23,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:34:23,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:34:23,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:34:23" (1/1) ... [2022-11-20 09:34:23,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25a3a06b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:23, skipping insertion in model container [2022-11-20 09:34:23,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:34:23" (1/1) ... [2022-11-20 09:34:23,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:34:23,272 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:34:23,423 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c8a1d7-d12d-4644-9664-b1943671c075/sv-benchmarks/c/pthread-wmm/safe029_tso.i[945,958] [2022-11-20 09:34:23,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:34:23,664 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:34:23,680 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c8a1d7-d12d-4644-9664-b1943671c075/sv-benchmarks/c/pthread-wmm/safe029_tso.i[945,958] [2022-11-20 09:34:23,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:34:23,769 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:34:23,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:23 WrapperNode [2022-11-20 09:34:23,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:34:23,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:34:23,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:34:23,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:34:23,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:23" (1/1) ... [2022-11-20 09:34:23,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:23" (1/1) ... [2022-11-20 09:34:23,835 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2022-11-20 09:34:23,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:34:23,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:34:23,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:34:23,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:34:23,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:23" (1/1) ... [2022-11-20 09:34:23,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:23" (1/1) ... [2022-11-20 09:34:23,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:23" (1/1) ... [2022-11-20 09:34:23,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:23" (1/1) ... [2022-11-20 09:34:23,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:23" (1/1) ... [2022-11-20 09:34:23,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:23" (1/1) ... [2022-11-20 09:34:23,856 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:23" (1/1) ... [2022-11-20 09:34:23,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:23" (1/1) ... [2022-11-20 09:34:23,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:34:23,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:34:23,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:34:23,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:34:23,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:23" (1/1) ... [2022-11-20 09:34:23,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:34:23,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c8a1d7-d12d-4644-9664-b1943671c075/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:34:23,895 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c8a1d7-d12d-4644-9664-b1943671c075/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:34:23,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c8a1d7-d12d-4644-9664-b1943671c075/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:34:23,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:34:23,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 09:34:23,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:34:23,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:34:23,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:34:23,945 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-20 09:34:23,945 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-20 09:34:23,945 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-20 09:34:23,946 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-20 09:34:23,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:34:23,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 09:34:23,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:34:23,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:34:23,949 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 09:34:24,135 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:34:24,138 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:34:24,323 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:34:24,330 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:34:24,331 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 09:34:24,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:34:24 BoogieIcfgContainer [2022-11-20 09:34:24,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:34:24,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:34:24,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:34:24,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:34:24,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:34:23" (1/3) ... [2022-11-20 09:34:24,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11209f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:34:24, skipping insertion in model container [2022-11-20 09:34:24,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:23" (2/3) ... [2022-11-20 09:34:24,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11209f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:34:24, skipping insertion in model container [2022-11-20 09:34:24,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:34:24" (3/3) ... [2022-11-20 09:34:24,345 INFO L112 eAbstractionObserver]: Analyzing ICFG safe029_tso.i [2022-11-20 09:34:24,355 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 09:34:24,368 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:34:24,368 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 09:34:24,368 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 09:34:24,418 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 09:34:24,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 73 transitions, 156 flow [2022-11-20 09:34:24,500 INFO L130 PetriNetUnfolder]: 2/71 cut-off events. [2022-11-20 09:34:24,500 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 09:34:24,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2022-11-20 09:34:24,505 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 73 transitions, 156 flow [2022-11-20 09:34:24,514 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 59 transitions, 124 flow [2022-11-20 09:34:24,524 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:34:24,532 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;@679790c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:34:24,532 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 09:34:24,555 INFO L130 PetriNetUnfolder]: 1/58 cut-off events. [2022-11-20 09:34:24,555 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 09:34:24,555 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:34:24,565 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:34:24,566 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-20 09:34:24,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:34:24,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1914735552, now seen corresponding path program 1 times [2022-11-20 09:34:24,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:34:24,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824608803] [2022-11-20 09:34:24,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:34:24,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:34:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:25,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:34:25,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:34:25,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824608803] [2022-11-20 09:34:25,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824608803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:34:25,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:34:25,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 09:34:25,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493759488] [2022-11-20 09:34:25,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:34:25,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 09:34:25,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:34:25,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 09:34:25,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 09:34:25,669 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 73 [2022-11-20 09:34:25,673 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 59 transitions, 124 flow. Second operand has 8 states, 8 states have (on average 52.5) internal successors, (420), 8 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:34:25,673 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:34:25,674 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 73 [2022-11-20 09:34:25,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:34:26,416 INFO L130 PetriNetUnfolder]: 263/618 cut-off events. [2022-11-20 09:34:26,416 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-20 09:34:26,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1103 conditions, 618 events. 263/618 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3188 event pairs, 7 based on Foata normal form. 32/634 useless extension candidates. Maximal degree in co-relation 1070. Up to 112 conditions per place. [2022-11-20 09:34:26,423 INFO L137 encePairwiseOnDemand]: 60/73 looper letters, 37 selfloop transitions, 16 changer transitions 84/177 dead transitions. [2022-11-20 09:34:26,423 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 177 transitions, 640 flow [2022-11-20 09:34:26,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 09:34:26,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 09:34:26,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1218 transitions. [2022-11-20 09:34:26,441 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7945205479452054 [2022-11-20 09:34:26,442 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1218 transitions. [2022-11-20 09:34:26,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1218 transitions. [2022-11-20 09:34:26,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:34:26,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1218 transitions. [2022-11-20 09:34:26,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 58.0) internal successors, (1218), 21 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:34:26,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 73.0) internal successors, (1606), 22 states have internal predecessors, (1606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:34:26,465 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 73.0) internal successors, (1606), 22 states have internal predecessors, (1606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:34:26,467 INFO L175 Difference]: Start difference. First operand has 65 places, 59 transitions, 124 flow. Second operand 21 states and 1218 transitions. [2022-11-20 09:34:26,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 177 transitions, 640 flow [2022-11-20 09:34:26,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 177 transitions, 636 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:34:26,476 INFO L231 Difference]: Finished difference. Result has 103 places, 72 transitions, 288 flow [2022-11-20 09:34:26,478 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=288, PETRI_PLACES=103, PETRI_TRANSITIONS=72} [2022-11-20 09:34:26,482 INFO L288 CegarLoopForPetriNet]: 65 programPoint places, 38 predicate places. [2022-11-20 09:34:26,483 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 72 transitions, 288 flow [2022-11-20 09:34:26,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 52.5) internal successors, (420), 8 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:34:26,484 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:34:26,484 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:34:26,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:34:26,485 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-20 09:34:26,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:34:26,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1621031519, now seen corresponding path program 1 times [2022-11-20 09:34:26,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:34:26,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712144808] [2022-11-20 09:34:26,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:34:26,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:34:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:26,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:34:26,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:34:26,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712144808] [2022-11-20 09:34:26,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712144808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:34:26,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:34:26,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 09:34:26,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015445709] [2022-11-20 09:34:26,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:34:26,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 09:34:26,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:34:26,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 09:34:26,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-20 09:34:26,846 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 73 [2022-11-20 09:34:26,847 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 72 transitions, 288 flow. Second operand has 9 states, 9 states have (on average 52.44444444444444) internal successors, (472), 9 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:34:26,848 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:34:26,849 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 73 [2022-11-20 09:34:26,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:34:27,701 INFO L130 PetriNetUnfolder]: 225/647 cut-off events. [2022-11-20 09:34:27,701 INFO L131 PetriNetUnfolder]: For 2681/2881 co-relation queries the response was YES. [2022-11-20 09:34:27,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2248 conditions, 647 events. 225/647 cut-off events. For 2681/2881 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3784 event pairs, 5 based on Foata normal form. 22/665 useless extension candidates. Maximal degree in co-relation 2193. Up to 148 conditions per place. [2022-11-20 09:34:27,711 INFO L137 encePairwiseOnDemand]: 60/73 looper letters, 47 selfloop transitions, 22 changer transitions 82/191 dead transitions. [2022-11-20 09:34:27,711 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 191 transitions, 1484 flow [2022-11-20 09:34:27,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-20 09:34:27,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-11-20 09:34:27,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 1636 transitions. [2022-11-20 09:34:27,716 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7727916863486065 [2022-11-20 09:34:27,716 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 1636 transitions. [2022-11-20 09:34:27,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 1636 transitions. [2022-11-20 09:34:27,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:34:27,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 1636 transitions. [2022-11-20 09:34:27,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 56.41379310344828) internal successors, (1636), 29 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:34:27,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 73.0) internal successors, (2190), 30 states have internal predecessors, (2190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:34:27,728 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 73.0) internal successors, (2190), 30 states have internal predecessors, (2190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:34:27,729 INFO L175 Difference]: Start difference. First operand has 103 places, 72 transitions, 288 flow. Second operand 29 states and 1636 transitions. [2022-11-20 09:34:27,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 191 transitions, 1484 flow [2022-11-20 09:34:27,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 191 transitions, 1212 flow, removed 136 selfloop flow, removed 9 redundant places. [2022-11-20 09:34:27,755 INFO L231 Difference]: Finished difference. Result has 129 places, 76 transitions, 377 flow [2022-11-20 09:34:27,755 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=377, PETRI_PLACES=129, PETRI_TRANSITIONS=76} [2022-11-20 09:34:27,756 INFO L288 CegarLoopForPetriNet]: 65 programPoint places, 64 predicate places. [2022-11-20 09:34:27,756 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 76 transitions, 377 flow [2022-11-20 09:34:27,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 52.44444444444444) internal successors, (472), 9 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:34:27,757 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:34:27,757 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:34:27,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:34:27,758 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-20 09:34:27,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:34:27,760 INFO L85 PathProgramCache]: Analyzing trace with hash 602906366, now seen corresponding path program 1 times [2022-11-20 09:34:27,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:34:27,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179667633] [2022-11-20 09:34:27,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:34:27,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:34:27,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:27,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:34:27,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:34:27,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179667633] [2022-11-20 09:34:27,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179667633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:34:27,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:34:27,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:34:28,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914289930] [2022-11-20 09:34:28,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:34:28,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:34:28,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:34:28,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:34:28,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:34:28,003 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 73 [2022-11-20 09:34:28,004 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 76 transitions, 377 flow. Second operand has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:34:28,004 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:34:28,004 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 73 [2022-11-20 09:34:28,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:34:28,198 INFO L130 PetriNetUnfolder]: 105/393 cut-off events. [2022-11-20 09:34:28,198 INFO L131 PetriNetUnfolder]: For 713/1181 co-relation queries the response was YES. [2022-11-20 09:34:28,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1068 conditions, 393 events. 105/393 cut-off events. For 713/1181 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 2488 event pairs, 8 based on Foata normal form. 3/363 useless extension candidates. Maximal degree in co-relation 1010. Up to 115 conditions per place. [2022-11-20 09:34:28,201 INFO L137 encePairwiseOnDemand]: 64/73 looper letters, 9 selfloop transitions, 8 changer transitions 37/106 dead transitions. [2022-11-20 09:34:28,202 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 106 transitions, 623 flow [2022-11-20 09:34:28,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 09:34:28,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-20 09:34:28,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 618 transitions. [2022-11-20 09:34:28,208 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8465753424657534 [2022-11-20 09:34:28,208 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 618 transitions. [2022-11-20 09:34:28,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 618 transitions. [2022-11-20 09:34:28,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:34:28,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 618 transitions. [2022-11-20 09:34:28,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 61.8) internal successors, (618), 10 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:34:28,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 73.0) internal successors, (803), 11 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:34:28,212 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 73.0) internal successors, (803), 11 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:34:28,213 INFO L175 Difference]: Start difference. First operand has 129 places, 76 transitions, 377 flow. Second operand 10 states and 618 transitions. [2022-11-20 09:34:28,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 106 transitions, 623 flow [2022-11-20 09:34:28,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 106 transitions, 481 flow, removed 41 selfloop flow, removed 30 redundant places. [2022-11-20 09:34:28,219 INFO L231 Difference]: Finished difference. Result has 93 places, 68 transitions, 245 flow [2022-11-20 09:34:28,219 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=245, PETRI_PLACES=93, PETRI_TRANSITIONS=68} [2022-11-20 09:34:28,221 INFO L288 CegarLoopForPetriNet]: 65 programPoint places, 28 predicate places. [2022-11-20 09:34:28,221 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 68 transitions, 245 flow [2022-11-20 09:34:28,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:34:28,222 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:34:28,222 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:34:28,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 09:34:28,223 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-20 09:34:28,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:34:28,224 INFO L85 PathProgramCache]: Analyzing trace with hash 408544757, now seen corresponding path program 1 times [2022-11-20 09:34:28,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:34:28,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876293994] [2022-11-20 09:34:28,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:34:28,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:34:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:28,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:34:28,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:34:28,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876293994] [2022-11-20 09:34:28,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876293994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:34:28,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:34:28,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 09:34:28,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906543] [2022-11-20 09:34:28,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:34:28,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 09:34:28,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:34:28,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 09:34:28,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:34:28,417 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 73 [2022-11-20 09:34:28,418 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 68 transitions, 245 flow. Second operand has 7 states, 7 states have (on average 59.42857142857143) internal successors, (416), 7 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:34:28,418 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:34:28,418 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 73 [2022-11-20 09:34:28,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:34:28,563 INFO L130 PetriNetUnfolder]: 11/112 cut-off events. [2022-11-20 09:34:28,563 INFO L131 PetriNetUnfolder]: For 87/96 co-relation queries the response was YES. [2022-11-20 09:34:28,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 112 events. 11/112 cut-off events. For 87/96 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 344 event pairs, 0 based on Foata normal form. 4/115 useless extension candidates. Maximal degree in co-relation 267. Up to 17 conditions per place. [2022-11-20 09:34:28,564 INFO L137 encePairwiseOnDemand]: 64/73 looper letters, 0 selfloop transitions, 0 changer transitions 75/75 dead transitions. [2022-11-20 09:34:28,564 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 75 transitions, 350 flow [2022-11-20 09:34:28,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 09:34:28,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 09:34:28,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 668 transitions. [2022-11-20 09:34:28,567 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8318804483188045 [2022-11-20 09:34:28,567 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 668 transitions. [2022-11-20 09:34:28,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 668 transitions. [2022-11-20 09:34:28,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:34:28,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 668 transitions. [2022-11-20 09:34:28,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 60.72727272727273) internal successors, (668), 11 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:34:28,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 73.0) internal successors, (876), 12 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:34:28,580 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 73.0) internal successors, (876), 12 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:34:28,580 INFO L175 Difference]: Start difference. First operand has 93 places, 68 transitions, 245 flow. Second operand 11 states and 668 transitions. [2022-11-20 09:34:28,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 75 transitions, 350 flow [2022-11-20 09:34:28,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 75 transitions, 297 flow, removed 14 selfloop flow, removed 9 redundant places. [2022-11-20 09:34:28,582 INFO L231 Difference]: Finished difference. Result has 83 places, 0 transitions, 0 flow [2022-11-20 09:34:28,583 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=83, PETRI_TRANSITIONS=0} [2022-11-20 09:34:28,584 INFO L288 CegarLoopForPetriNet]: 65 programPoint places, 18 predicate places. [2022-11-20 09:34:28,584 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 0 transitions, 0 flow [2022-11-20 09:34:28,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 59.42857142857143) internal successors, (416), 7 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:34:28,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-11-20 09:34:28,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-11-20 09:34:28,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-11-20 09:34:28,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 09:34:28,591 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-20 09:34:28,595 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 09:34:28,595 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 09:34:28,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:34:28 BasicIcfg [2022-11-20 09:34:28,601 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 09:34:28,602 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 09:34:28,602 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 09:34:28,602 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 09:34:28,602 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:34:24" (3/4) ... [2022-11-20 09:34:28,605 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 09:34:28,612 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-20 09:34:28,612 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-20 09:34:28,617 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-20 09:34:28,617 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 09:34:28,618 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 09:34:28,618 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 09:34:28,666 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c8a1d7-d12d-4644-9664-b1943671c075/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 09:34:28,666 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 09:34:28,666 INFO L158 Benchmark]: Toolchain (without parser) took 5478.99ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 116.6MB in the beginning and 94.0MB in the end (delta: 22.5MB). Peak memory consumption was 73.6MB. Max. memory is 16.1GB. [2022-11-20 09:34:28,667 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 148.9MB. Free memory is still 91.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:34:28,667 INFO L158 Benchmark]: CACSL2BoogieTranslator took 578.64ms. Allocated memory is still 148.9MB. Free memory was 116.6MB in the beginning and 96.9MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 09:34:28,667 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.99ms. Allocated memory is still 148.9MB. Free memory was 96.9MB in the beginning and 94.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:34:28,668 INFO L158 Benchmark]: Boogie Preprocessor took 23.45ms. Allocated memory is still 148.9MB. Free memory was 94.7MB in the beginning and 93.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:34:28,668 INFO L158 Benchmark]: RCFGBuilder took 473.49ms. Allocated memory is still 148.9MB. Free memory was 93.5MB in the beginning and 80.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 09:34:28,669 INFO L158 Benchmark]: TraceAbstraction took 4263.64ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 80.2MB in the beginning and 97.2MB in the end (delta: -17.0MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. [2022-11-20 09:34:28,669 INFO L158 Benchmark]: Witness Printer took 64.17ms. Allocated memory is still 199.2MB. Free memory was 97.2MB in the beginning and 94.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:34:28,678 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 148.9MB. Free memory is still 91.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 578.64ms. Allocated memory is still 148.9MB. Free memory was 116.6MB in the beginning and 96.9MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.99ms. Allocated memory is still 148.9MB. Free memory was 96.9MB in the beginning and 94.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.45ms. Allocated memory is still 148.9MB. Free memory was 94.7MB in the beginning and 93.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 473.49ms. Allocated memory is still 148.9MB. Free memory was 93.5MB in the beginning and 80.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4263.64ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 80.2MB in the beginning and 97.2MB in the end (delta: -17.0MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. * Witness Printer took 64.17ms. Allocated memory is still 199.2MB. Free memory was 97.2MB in the beginning and 94.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 88 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 328 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 328 mSDsluCounter, 289 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 229 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 340 IncrementalHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 60 mSDtfsCounter, 340 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=377occurred in iteration=2, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 188 ConstructedInterpolants, 0 QuantifiedInterpolants, 850 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 09:34:28,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c8a1d7-d12d-4644-9664-b1943671c075/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE